KR20110058171A - A new model of a virtual music keyboard with the touch keypad - Google Patents

Abstract

PURPOSE: A virtual keyboard model which uses two touch key pads is provided to supply a keyboard by using two touch pads of a handheld device. CONSTITUTION: A touch panel pointing device uses a pointing control method to determine a position coordinate of fingers and a pointer position control method according to the displacement position of fingers on a touch pad. A push switch performs a command execution futon function and is arranged in the lower side of the touch pad.

Description

A new model of a virtual music keyboard with the touch keypad}

The related art of the present invention is the technical field related to the input device of a portable small digital device, and is related to the development of hardware related to a pointing device represented by a touch pad, a touch screen, and the like and software for operating the same.

The computer was converted into a graphical user interface (GUI) system since the advent of the mouse as a device that allows the computer monitor to move the pointer that specifies the content and location of the executable command. Since then, as computers have become smaller and more portable, touch pads and pointing sticks have been developed and used as built-in pointing devices that can replace the mouse for added convenience. Similarly, today's portable digital devices, such as PDAs, PMPs, and even cell phones, are getting closer to computers. However, these devices are too small to install pointing devices on the digital devices, so the screen is a touch screen to form a UI (User Interface) system close to a computer, or otherwise a keypad that enables at least text input on a general mobile phone. Is operated using. Therefore, portable digital devices with perfect UI, such as notebook PCs with built-in pointing devices, have been impossible to implement because of their size limitation. In particular, in the case of mobile phones, numeric input is the main function, so when pointing devices such as touch pad, pointing stick, and trackball are installed, they do not have enough space to occupy and they only support the main function of numeric input. Will be maintained. Accordingly, the present invention is to provide a structure for simultaneously performing the character input function and the original pointing function of the keypad of the mobile phone using the touch pad as a pointing device.

Thanks to advances in semiconductor technology, vacuum tube-based computers in the mid-20th century are now miniaturized and integrated so that they can fit in your hand. (laptop) Routines have already been made through computers and PDAs. Furthermore, devices such as mobile phones, MP3s, and PDPs, which were previously used irrelevant to computers, are in charge of additional functions such as computers, or are in the age of convergence where these functions are included in portable Palmtop computers. With this trend, it is time to introduce computer graphical user interface (GUI) systems to these small electronic devices. However, the pointing device, which is essential for a graphical user interface (GUI) system of a computer, has not been applied because of space limitations and usage problems in which these small electronic devices can be mounted. In order for the pointing device to be applied to use a graphical user interface (GUI) system, the size of the touchpad or pointing stick already used in a laptop computer and the like and the structure and size of the function button used with the pointing device need to be changed. will be. Designed to overcome this point, touch screens and input pens are currently being applied to palmtop computers or PDAs, but such touch screens or input pens are not easy to apply in one hand such as mobile phones. Accordingly, it is a technical problem of the present invention to provide an input device using a touch pad which is easy to point like a mouse and makes text input easier than a keypad of a general mobile phone. In addition, in some cases, by providing a structure that can be operated with one hand to provide a method that can be used in the same way as the existing mobile phone.

According to the present invention, since two touchpads may be used to facilitate text input in a handheld small device such as a mobile electronic device, especially a mobile phone, the keyboard may be additionally built by bringing an effect of a built-in keyboard operating with both hands. There is no need, and it is possible to provide an input device for implementing a UI even in a narrow space of a portable digital device.

In view of the principle, the touch pad according to the present invention can be used as a pointing device according to the present invention as long as a pointing function capable of providing a coordinate system using a resistive method and a frequency method used in a touch screen is possible. However, technology development that replaces the functions of the keypad or keyboard of the mobile phone has been developed mainly in the form of a touch screen, and in the case of the touch screen, a command button exists on the screen for each command execution. However, when the size of the menu touches a finger, there must be a boundary enough to distinguish each button or menu, thereby limiting the size of the device. On the contrary, in the pointing device of the present invention, even if an area on a touch pad for executing a command or a menu is touched with one finger, the position of the finger calculated by the touch pad is one point (the point where the pointer is located on the screen). Because it is displayed as, it can be implemented in a much narrower space than the touch screen method. That is, as already explained, the area corresponding to each key is much smaller than the area of the thumb when inputting letters using the virtual keyboard, so that one finger touches the area corresponding to several keys at the same time and cannot distinguish each area. Even if it does not matter. This is because when the pressure sensing device is used as an input device for a portable digital device designed so far, there is a limit in reducing the size of the compartment corresponding to each execution command in the direction that the area to be distinguished by the finger must be secured. come. That is, it has not been developed as an input device of a digital device enough to hold and operate with one hand, and the present invention overcomes this point.

Therefore, the mobile phone user according to the present invention has been freed from the problems caused when using the existing qwerty phone. In other words, the existing QWERTY phone has to lift the thumb up in order to avoid the other keys around it, so that the thumb touches the keypad as small as possible, and the key is selected and pressed. This caused inconvenience in use, whereas the character input using the touchpad of the present invention does not need to move the finger carefully to distinguish the keys and surrounding keys to press on the keyboard, so fast character input without fatigue at all This is guaranteed.

As a result, the text input method using the touch pad according to the present invention enables the user to install a keyboard which can be easily operated even in a narrow space, and thus, the mobile phone is no longer a simple communication device but a PDA in a hand, that is, a Palmtop computer. It will open an upgraded generation of fingertop computers. This change means the emergence of digital devices that bring mobile phones to the computer at any time in response to the Ubiquitous era. In addition, the input device using the touch pad of the present invention can be used as a remote controller capable of inputting characters used in conventional TVs, VCRs, DVDs, as well as portable digital electronic devices. That is, not only a simple pointing device but also a function of a universal pointing device equipped with a function of a keyboard substantially enables the implementation of a graphical user interface (GUI) in an electronic device having a monitor. Ultimately, the input device of the present invention will be a true hand-in Ubiquitous input device that enables computerization of electronic devices and networking between all devices.

The configuration of the present invention is simply a design of a portable digital device having an input device in which all inputs are made of a touch pad. In other words, the computer's keyboard and mouse are integrated into the touchpad. As shown in FIG. 1B, when the touch pad is used instead of the keypad, the pointing function is facilitated, but character input is not easy. Therefore, a key component of the present invention is to overcome these disadvantages, which is to provide a structure of a touch pad that provides the same or easier convenience as using a keypad for text input.

In general, the touchpad arranges additional function buttons around the touchpad to execute the pointing function. As shown in FIG. 2B, the function of these function buttons can be changed in various ways according to the position of the hand. However, when operating a finger with a touch pad as in FIG. 2A, it is inconvenient to operate the function buttons. It is a factor that causes. Even when using two fingers, operation of the function button is inconvenient than pressing the keypad. Moreover, even if the touch button function of the touch pad is generally replaced with a tapping operation, the tapping operation does not alleviate inconvenience because the tapping operation involves additional finger movements. Therefore, as shown in FIG. 5, the touch pad itself is responsible for the button function so as to omit an additional finger movement accompanying the command execution or the text input using the function button of the touch pad. Configuration. The difference depending on the presence or absence of a button function of the touch pad is illustrated in FIGS. 3 (without a button function) and FIG. 4 (with a button function). In other words, in the case of the touch pad having a button function, the character input is performed by the same hand gesture as that of the keypad. If the touch pad has such a push button function, mechanical operation such as switch operation (Fig. 5, 6) by lever-shaped movement and switch operation by pressing operation (Fig. 7) by installing the switch under the touch pad There is also a method of installing the switch in a convenient location separately from the touch pad (Fig. 23), and more simply a method of adding a switch function using the pressure recognition function of the touch pad (Figs. 23a, 30, 32) and the like. .

In the second configuration of the present invention, two touch pads are installed (FIG. 9) so that the character input method is the same as the method through the keyboard (FIG. 8). In fact, the structure of the mobile phone, which can use two touchpads, can be a folder type (Figs. 10, 11, 12) and a slider type (Fig. 18), so that both hands can be used for text input and only one hand can be used for a phone call. To be. Therefore, both the mobile phone's unique function and the input function as a digital device are easily performed.

According to the third aspect of the present invention, when a character is input using a touch pad, a method of using a touch pad and a coordinate on the touch pad and the position of a pointer on the screen are used in a one-to-one correspondence. That is, the general operating principle of the touchpad does not matter where the finger is initially placed on the touchpad, only the difference between the first position (X _i , Y _i ) and the last position (X _f , Y _f ) (ΔX, △ Displacement (Δx, Δy) of the pointer on the screen is made in proportion to the magnitude of the displacement corresponding to Y). On the contrary, in the present invention, in addition to the operation by the displacement of the general touch pad, the operation principle of the one-to-one correspondence method in which one point (X, Y) of the touch pad corresponds to one point (x, y) on the screen is described. At the same time. In particular, this one-to-one operation principle is applied to the pointing function for text input so that a certain area of the touchpad represents a specific letter or number, such as operating the keypad of a mobile phone or the keyboard of a computer. . This is different from the way the existing touchpad works. 28 shows a flowchart of an input method using two touch pads according to the present configuration. In order to input characters, the pointer on the screen is controlled in a coordinated one-to-one correspondence method, and a correspondence method using displacement is applied to the movement of the pointer required for other pointing operations. However, in the horizontal mode shown in FIGS. 14, 15, and 16, an entire keyboard is used for text input, and two touch pads are used at the same time. In the vertical mode, a simple keyboard having a keypad shape is used. Done.

The fourth configuration of the present invention is a practical UI implementation in a portable digital device by using the touchpad as an input device replacing the mouse and the keyboard at the same time. In the PDA, the UI is implemented by the touch screen method, but it is difficult to implement the UI in a smaller mobile phone, so that the touchpad of the present invention can be implemented in a small mobile phone that does not have a screen similar to that of the PDA. It is done. Examples of this are shown in FIGS. 13, 14, 15, 16, and 17. Furthermore, the configuration of the present invention is only applicable to the input device of the electronic dictionary, PMP, PDA, Figure 19 shows an example applied to the electronic dictionary.

The fifth configuration of the present invention is to make a reference point in the form of protrusions, grooves, or irregularities on the surface of the touch pad to more easily identify the position of the finger in the one-to-one correspondence between the touch pad and the screen. It may have a dot shape as shown in FIG. 20 or may have a grating uneven shape as shown in FIGS. 21 and 22. The advantage of this reference point is to make it easier to identify the position on the touchpad of the finger so that you can move your finger to a position that corresponds to the letter or number you want to enter without looking at the screen. This has the advantage of making it easier to identify relative positions. In addition to the irregularities on the touch pad, the edges of the interface formed by the touch pad with the surroundings may similarly serve as reference points. One of the ways to take advantage of the edge of the touch pad interface is to divide the touch pad area into three levels: upper, middle, and lower. It is recognized as a part and can be easily located. This is how we use a virtual keyboard with three columns. In other words, the five-row virtual keyboard shown in FIG. 9A allows a user to select many characters on the screen, making it easier to select than the virtual keyboard of FIG. 9B, but how easy it is to identify the positions corresponding to these characters on the actual touchpad. In this regard, the three-row virtual keyboard shown in FIG. 9B is advantageous and furthermore, it is a method that makes best use of the advantages of using two touch pads.

A sixth aspect of the present invention is the setting of the one-to-one correspondence relationship between the touch pad coordinate system and the screen coordinate system used for text input. The most typical relationship is shown in FIG. 24 as a case where the area representing each letter or number is set to be constant. That is, in the case of the touch pad coordinate system, the width of the area representing each character is the same (△ X ₁ = ΔX ₂ = ΔX ₃ = ΔX ₄ = △ X ₅ ) Similarly, the height is the same (△ Y ₁ = △ Y ₂ = △ Y ₃ ) In the case of the screen coordinate system, the width and the vertical width of the virtual keyboard of the screen have the same size. (△ x ₁ = △ x ₂ = △ x ₃ = △ x ₄ = Δx ₅ , Δy ₁ = Δy ₂ = Δy ₃ ) Therefore, as shown in Fig. 24B, when the character input pointer (cross cursor) is in the following coordinate system area on the screen.

x _L2 <x ≤ x _L3

y ₂ <y ≤ y ₃

  If the execution button (touch pad push switch in FIGS. 5, 7, 22, and 23a; corresponding push switch in FIG. 23b) is pressed, the letter 'd' is input. For this purpose, the position of the finger on the touchpad should be located in the following position on the touchpad coordinate system in the same way.

X _L2 <X ≤ X _L3

Y ₂ <Y ≤ Y ₃

The relationship between the coordinates of the finger on the touch pad and the coordinates of the character input pointer (cursor) on the screen is shown for each of the X and Y coordinates of the left and right fingers in FIG. 24C. 24C shows a flowchart only for the coordinate correspondence scheme for the input execution process. Referring to FIG. 14 as an example, FIG. 14A is an initial screen of a landscape mode, in which a single pointer (arrow cursor) is moved, and an area where the pointer can move is called an 'all area covering cursor' because the entire screen is moved. This method of controlling the global cursor is the same as the pointing method by the conventional touch pad, in which the finger displacement (position change amount: ΔX, △ Y) is corresponded to the pointer displacement (position change amount: Δx, △ y). to be. However, the corresponding proportional constant of the displacement, i.e., the constant Q that determines Δx = QΔX, may be controlled by the user's convenience. In the 'Global 1 Cursor System' of FIG. 14A, when switching to a text input mode for character input as shown in FIG. 14G, the system operates as a 'limited area 2 cursor system'. It is placed on the right side and works only within this area. Furthermore, when the coordinate system of the touch pad is adjusted as shown in FIG. 25A, character input is easier because the finger (thumb) that operates the touch pad has a curved shape instead of a straight line. . In other words, as shown in FIG. 25C, if the touch pad areas corresponding to each character are all the same, when crossing the middle area corresponding to the string 'hjk ℓ;', the fingers are shifted upward from the middle area, instead of 'k'. If you input 'i' in the case, it may happen. One way to fix this problem is to make the center area △ Y ₂ of the virtual keyboard relatively larger than the bottom △ Y ₁ and top △ Y ₃ areas in the touch pad coordinate area. As shown in FIG. 25B, the conversion equation in which the screen coordinate system is calculated by changing the width of the region is different.

The seventh configuration of the present invention is to enable the horizontal, vertical mode conversion of the mobile phone by the conversion of the X-Y coordinate axis of the touchpad. In fact, when the mobile phone is used for a call, it is held in the form as shown in FIG. 26, and the screen is narrower to place an intact virtual keyboard. Instead, it includes additional keypads corresponding to call, cancellation, and termination in addition to the 12 numeric keypads of the existing mobile phones. The virtual keypad is configured on the screen to provide a text input mode. As in the case of using the horizontal mode, the width of the middle area is also easy to input characters even in the vertical mode. 28 is a diagram showing a change in the touch pad signal conversion method according to the seventh configuration of the present invention. In other words, in the pointer control method based on the displacement, the method of controlling two pointers (cursors) at the same time as the control method based on the coordinate values (x, y) is added.

An eighth aspect of the present invention is to provide a method for correcting that the center of a user's finger recognized by the touch pad may be different from the point where the actual user recognizes the reference point of the touch pad. As shown in FIG. 29A, when the finger touches a part corresponding to the letter 'k', the touch pad does not designate a part that the user feels as the center of the finger as the center of the finger. Each person has a different shape of the finger, and the shape of the surface touching the touch pad will vary according to the size and shape of the finger. In the case of a touch pad using actual capacitance, a point point (not a face) is calculated by calculating a centeroid for each of the X and Y axes from the capacitance distribution curve in the X-axis and Y-axis directions of the finger with the touch pad. These X _centroid , Y _centroid is defined as the point of contact of the finger, and to calculate this centroid, the touchpad is larger than the uneven area (X ₀ <X <X ₅ , Y ₀ <Y <Y ₃ ) Bold dotted area of 29c-2901). And when you actually use a mobile phone, the surface of the finger touches the touchpad may be different for each person, but the same person to hold the phone is the same way to create a constant contact pattern. If the finger center point P _calc of the touch pad calculated from such a pattern does not match the center point P felt by the actual user, the coordinate change of FIG. 24C, 25B, 26E, and 27B causes a problem. That is, as shown in FIG. 29C, even if the actual finger is located in an area corresponding to 'k' of the touch pad, the center point P _{k , calc . Of} the finger calculated by the actual touch pad is the letters 'i', 'o', and 'k'. ',' ℓ 'is located in the overlapping area, so that' k 'is not input unlike the user's intention. The method for correcting this is to store the coordinates of the respective center points, which are located next to the fingers at 'h', 'j', 'k', 'ℓ', and ';' and then the X shown in FIG. 29C from the coordinates of these center points. ' _R1 , X' _R2 , X ' _R3 , X' _R4 is calculated, and then X ' _R0 and X' _R5 are calculated from X ' _R1 and X' _R4 . Similarly, the correction in the Y-axis direction is P _{k , calc} for 'i', ',' _. Y ' ₁ and Y' ₂ are calculated by calculating the coordinates, and Y ' ₀ and Y' ₃ are calculated again from these to correct the entire coordinate system. A detailed calculation method for this is shown in FIG. 29F. This is to set the area of the touch pad corresponding to each key area of the virtual keyboard to match the area of the virtual keyboard and the touch pad, because each key has a different shape and shape of the finger touching the touch pad. When the area of the touch pad corresponding to each key area of the virtual keyboard is actually arranged in an area having a checkerboard height and width as shown in FIG. 29A, the center points of the areas of the touch pad and the virtual keyboard are displaced. Because. Therefore, the center point of each key is set as shown in FIG. 29C, and a rectangle formed by drawing a horizontal and vertical line that divides the line connecting the center points of adjacent key areas based on the center point corresponding to the key is placed on the keys of the virtual keyboard. It becomes a corresponding touch pad area. For example, for the key 'J', the center point P _{j , cal} is set by the method according to FIG. 29C and similarly the center point corresponding to the surrounding keys (P _{u , cal} , P _{k , cal} , P _{m , cal} , P _{n , cal} ) are set and the distance to these center points is half horizontal (Y = Y ' _{2 ( uj )} , Y = Y' _{1 ( jm )} ), vertical lines (X = X ' _{R1 ( hj )} , X = X' _{R2 (jk)} ) is formed to create an area 2902 for the key 'J' on the touchpad. △ Y _u2 and Δ Y _j2 is the distance from the center of the key 'J' and the key 'U' to the horizontal line (Y = Y ' _{2 ( uj )} ) that is half of these center points, and the size is the same. Similarly with △ Y _j1 Δ Y _m2 and the distance from the center of the key 'J' and the key 'M' to the horizontal line (Y = Y ' _{1 ( jm )} ) that is half of these center points, the size is the same. In fact, Δ Y _j1 and Δ Y _j2 may be different, and in this case, the center point Pj of the key 'J' may not be the center of the area rectangle 2902. △ X _h1 and △ _j1 X is a distance from the center point of the key 'H' and 'J' to the vertical _{(X = X 'R1 (hj} )) to half of the center thereof and its size is the same. Unlike the checkerboard shape of FIG. 29A, the key region formed on the touch pad is formed with portions 2904 and 2905 overlapping with adjacent key regions as shown in FIG. 29G, where Ov _jm and J overlap with 'M'. 'J' overlaps with Ov _j , where the comma overlaps. In these overlapping areas 2904 and 2905, an invalid area in which the corresponding key is not set may be assigned, and the key may be assigned to the remaining areas. That is, the key 'J' is input when the center of the finger is located in the rectangular area 2907 except for the overlapping areas 2904 and 2905. This newly corrected 'real coordinate system'(X'-Y') is used to calculate the position of the actual character input pointer, which is shown in Figs. 29D and 29E. In FIG. 29D and FIG. 29E, the portion labeled 'change input coordinate system' refers to a process of converting the nominal coordinate system XY of FIG. 29A to the real coordinate system X'-Y of FIG. 29C.

The ninth configuration of the present invention is the performance of the function button using the pressure sensing function of the touch pad. Three types of pressure changes when touching the touchpad with a finger are shown in FIG. 30. FIG. 30A is a change in pressure during a general pointing operation, FIG. 30B is a change in pressure when a pressing operation is performed, and finally, FIG. 30C is a change in pressure occurring during a tapping operation. In terms of pressure, the greatest pressure occurs during the pressing operation. When the pressure is called the pressing pressure (Z _pr ), the pressing pressure is generally generated while the finger is touching the touch pad. The change in pressure has a form such as a camel. Therefore, the point at which the pressing pressure starts to be greater than the touch pressure, t (p) _{1, i} or t (p) _{2, i} corresponds to the switch on and the pressing pressure ends, t (p) _{1, f} Or t (p) _{2, f} corresponds to the switch off. However, since it is difficult to actually set the starting point of the pressing pressure, a pressure slightly larger than the touch pressure (Z _{t , max} ) is defined as the pressing threshold pressure (Z _{pr , th} -Threshold pressure of pressing). And point up the pressing pressure and the pressing operation is started to push the threshold pressure (t _{pr, th -)} to switch on the to and pressing a reference pressure (Z ^o _pr) to pass again pressing dadareuneun the threshold pressure time (t _pr to the _{, th +} ) corresponds to the switch off. The time difference between these two pressing threshold pressure points may be defined as the actual holding time Δt _pr . The reason for defining the pressing reference pressure (Z ^o _pr ) is that if the touch pressure (Z _{t, max} ) occurs at the touch operation instead of the pressing operation, it may happen to exceed the pressing threshold pressure in such a case. Since it is generally smaller than the pressing reference pressure, it is a constant to prevent the mistake of the pressing operation. Typically, this pressing reference pressure is slightly smaller than the minimum pressing pressure so that the touch switch does not operate due to a touch operation involving an accidentally high pressure, and the intended pressing operation has a maximum and minimum pressing pressure as shown in FIG. 30B. Since it is higher than the pressure reference pressure, it is a reference constant that allows the user's intentional pressure to operate as a switch function. In general, the touchpad used in notebooks is already using a function button by tapping. FIG. 30C illustrates a change in pressure generated when the touchpad is tapped. If the maximum pressure generated at this time is called tapping pressure (Z _tap ), the tapping pressure may actually be the same as the touch pressure or the pressing pressure. have. But recognizing the tapping is the time when the touch is shorted rather than the tapping pressure. That is, as shown in FIG. 30C, the touch duration Δt _tap and the touch-off time Δt _off are within a predetermined time (Δt (t) ₁ <Δt ^o _tap , Δt (o) ₁ <Δt ^o _tap Where Δt ^o _tap is a user- _definable tapping reference time). This condition is caused when the finger accidentally touches the touch pad (corresponding to Δt _{tap , 2} in FIG. 30C) or the touch duration is longer than the tapping reference time (Δt ^o _tap ) (Δt _{tap , 2} > Δt ^o _tap ). The touch short time is longer than the tapping reference time (Δt _{off, 2} > Δt ^o _tap ) to prevent accidental touches from operating incorrectly with the tapping function. The area in charge of the tapping function is an area in which the touch pad 3101 is surrounded by the body of the mobile phone ((S) 1, (S) 2, (S) 3, (S) 4, (S) 5, (S) area 6) prevents the touchpad from being pressed during tapping, thereby freeing tapping. In principle, the tapping area ((S) is distinguished when the function of the function button is changed due to the pressure change due to the tapping and when the function button is functioned due to the pressure change due to the pressing operation. ) 1, (S) 2, (S) 3, (S) 4, (S) 5, (S) 6) and the pressing area (3102) need not be distinguished, as shown in FIG. 31B, It is also possible to extend to the edge of the actual touchpad and to overlap the tapping area to make the area representing each letter or number wider. In this case, the finger can easily grasp each area so that the text can be easily input.

The tenth configuration of the present invention is a method for compensating for a problem that an input of an unwanted character may occur due to a change in the position of a finger during a pressing operation for text input because the area of each character assigned to the touch pad installed in the mobile phone is not large. . That is, the finger may move due to the joint motion of the finger when pushing the push switch (FIGS. 5 and 7) or when the touch pad is pressed to generate a pressure change on the touch pad or when a separate switch as shown in FIG. 23B is pressed. Even if the contact surface is changed, it is a way to input a character represented by the position of the finger at the time when the pressure is applied. This configuration of the present invention is well illustrated in FIG. For example, in the process of inputting the letter 'jkℓ', the pressure change only before and after the letter 'k' is input, the finger is moved from the center position (X = X _{1 .5} ) to the right of the area corresponding to the letter 'j'. moving the center of the so moved to the central position (X = X _{2 .5)} of the area indicating the character 'k' represents the letter 'ℓ' to enter the 'k', and inputting a character 'ℓ' to the right, back region located (X = X _{3 .5)} giving the Fig 32b illustrates the pressure change during the process of moving to. A virtual ideal input process is shown in FIG. 32B- (A). Fingers keep the touch state, and X = X _{2 .5} the reached position by applying pressure without movement of the finger pressing a reference pressure _(pr Z ^o), and then a touch area restoration condition and represents the characters 'ℓ' reach Shows moving to. In practice, however, a pressure change in the form shown in FIGS. 32B- (B), (C) and (D) may occur. Among these, in the case of FIG. 32B- (D), the pressing pressure is determined by the pressing reference pressure Z ^o _pr . When the character is reached and the character input occurs, the character is changed to 'ℓ' instead of the intended 'k', which causes a problem of input again. The configuration of the present invention to compensate for this is the utilization of the pressure threshold pressure (Z _{pr , th} -threshold pressure of pressing). As shown in FIG. 32B, the pressing threshold pressure Z _{pr, th} is a variable determined by the following equation according to the user's convenience between the pressing reference pressure Z ^o _pr and the touch reference pressure Z _tch , and the user is a constant. You just need to decide.

Z _{pr , th} = Q _{pr , th} (Z ^o _pr -Z _tch )

Wherein Q _{pr, th} is determined in the range of about 0.5 <Q <0.9 as a proportionality constant that the user specifies, Z ^o _pr and Z _tch is there is be done during initialization of the touch pad Z _tch is a user and typically their This value is the maximum value of the touch pressure when the finger moves on the touch pad in the usual way. Z ^o _pr is the value corresponding to 90% of the minimum value (Z _{p, min} ) among the pressing pressures obtained by pressing the designated area as the user normally uses, which is also larger than Z _{pr, th.} It must be a value. This pressing pressure threshold (Z _{pr, th)} the appointed actually Press Press threshold pressure to the pressure _(pr Z) based on the pressing pressure _{^{(Z o pr) (t (}} X pr, th-)) when it reaches the (Z _{pr , th-} ) _compares the letter V (X (Z _{pr, th} -))-and the letter represented by the pressure reference pressure, -V (Z ^o _pr ) _-and if they are equal, V (Z ^o _pr ) In the case of different values, a correction method for inputting V (X (Z _{pr, th−} )) is a configuration of the present invention. In other words, since the input character becomes V (X (Z _{pr, th−} )) in any case, it is a configuration of the present invention to always input V (X (Z _{pr, th−} )). Accordingly, even in the pressure change process as shown in FIG. However, the concern is that the touch reference pressure is substantially lowered, and the touch pressure (Z _tch ) is increased by chance and reaches the pressing threshold pressure (Z _{pr, th} ). Even in this case, if the user does not actually intend to input, the touch pressure (Z _tch ) does not reach the pressing reference pressure (Z ^o _pr ) and the character is not input. Therefore, the setting of the pressing threshold pressure lowers the character input pressure and does not cause an error that the user inputs during the touch process. However, the setting of the pressing threshold pressure only brings the effect of increasing the accuracy of typing so that characters are input as the user intends. In addition to the configuration of the character input error correction method of the present invention, if a method of changing the brightness or the color of the background of the area representing the character representing the place where the pointer is located as the character input pointer moves on the virtual keyboard is provided. The user can easily recognize where the current pointer is located, make text input easier, and furthermore, if the background of the area corresponding to the input text changes to another color when the text input is executed, Make errors easier to recognize. The push threshold pressure introduced for the accuracy of the character input is used to perform another function. This is in connection with the function of the shift key on the keyboard. 32C- (B) show the pressure change according to the change in coordinates along the horizontal axis and the pressure change according to time in the virtual ideal pressing pressure change process. In particular, the change in pressure with time shows the pressure change more accurately. The time when the character input actually occurs is not when the press pressure reaches the press reference pressure, but the press pressure is lower than the press reference pressure and the press threshold is reached again. Is entered (X = X _{pr , th +} ). The reason for this is that the holding time of the pressing reference pressure, that is, the holding time (△ t _pr = t (X _{pr , th +} ) -t (X _{pr, th-} )) is greater than the predetermined pressing reference time (△ t ^o _pr ). This is to make the effect of pressing the shift on the keyboard when it is long. For example, as shown in FIG. 15B, in the case of an English letter, a function button needs to be additionally pressed in order to input uppercase and lowercase letters. By setting the reference time, it is possible to bring the same effect to the duration of the pressing pressure. Therefore, Z _{pr , th -} in this configuration is responsible for the switch-on function and Z _{pr , th +} is responsible for the switch-off function. However, when the shift function according to the pressing duration is given as in this configuration, it is not necessary to press the function button to perform the effect of the shift key. However, if you need to use the second key set (capital letters), it is convenient to use the function button to activate the cap-lock function. Therefore, in the present invention, the function of the function button for maintaining the shift key is also outlined in (S) 1, (S) 2, (S) 3, (S) 4, and (S) 5 of the touch pad shown in FIG. , (S) 6) can be implemented by tapping the area. Therefore, if it is necessary to use the second key set continuously like the capital letters of English, the shift function is maintained by using the Caps Lock function, and the shift function that is sometimes used, such as the English letter which should be written in capital letters at the beginning of the sentence, is maintained by pressing pressure. Implementation is a configuration of the present invention. The construction principle using the sustain of the pressing pressure is shown in Figs. 32C- (B) and 32D- (B). FIG. 32C- (B) shows an example of inputting the letter 'K'. FIG. 32D- (B) shows an example of inputting the 'K'. When the horizontal axis represents the X coordinate, the pressing operation of FIG. 32D is maintained for a longer time. be mistaken as it is important, but if the long press time than do maintenance (△ t _pr) a pressing reference time (△ t ^o _pr) in the pressure change according to the time chart. Therefore, the push duration is rather longer in Fig. 32C. That is, in FIGS. 32C- (B) and 32D- (B), the pressing reference time Δt ^o _pr is displayed as a dim area. In the case of FIG. 32C- (B), the pressing time is longer than the reference time ( △ t _pr > Δt ^o _pr ), and in the case of 32d- (B), when the pressing time is shorter than its reference time (△ t _pr <△ t ^o _pr ), the former is 'K' and the latter is the initial pressing threshold pressure ( Enter 'k' which is the representative character in Z _{pr, th-} ). 33 is a flowchart showing the character correction process of this configuration. Although the above has described the character input switch function by the pressure of the touch pad, it can be applied to the case of executing the character input using the mechanical switch of FIGS. 5, 7 and 23B. In other words, t shown in FIG. 32 (X _{pr, th -)} and t (X _{pr, th +)} is in correspondence with the operation time (t _on) and end time (t _off) of the switches each of the input character as the same principle If V (t _off ) is equal to the character represented by the point at which the mechanical switch is activated- V (t _on )-the character represented by the end point of the switch- V (t _off ), then V is not equal. is to type (t _on ). In this way, even when using the mechanical input switch (Fig. 5, Fig. 7, Fig. 23b) can be applied to the input character correction method by the pressing pressure because the pressing pressure on the touch pad when operating these mechanical switches the same _{- () t (X pr,} th) - it is the usual case, the switch operation time (t _on) than the pressing threshold pressure time _{(t (X pr, th)} ) operation is so fast V (t _off) and V Enter V (t _off ), otherwise enter V (t (X _{pr, th-} )). This provides a user selectable option to achieve a situation that best suits the user's pressing pattern. Furthermore, even if the pressure value is changed as shown in FIG. 32D (B), when the pressure value rises above the pressing threshold pressure Z _{pr, th} and decreases below the pressing threshold pressure again, it passes the initial pressing threshold pressure. Fix the value of (X, Y) coordinate at (t (X _{pr, th-} )) and input the character corresponding to this coordinate when the pressure reaches the pressure reference pressure. Even if the finger moves to the area, the intended character can be entered. That is, if the touch pad passes the push threshold pressure (Z _{pr, th-} ) above the push threshold pressure, the touch pad fixes the (X, Y) coordinates of the finger transmitted to the computer CPU to the current finger. When used as a coordinate of, even if the finger moves to a neighboring key during the pressing operation, the movement of the cursor on the virtual keyboard has the effect of being fixed to the key area corresponding to the character to be input, the character input shown in FIG. 33. The same results can be achieved with the method of preventing errors.

An eleventh aspect of the present invention is to increase the difference between the pressing pressure and the touch pressure. In the case of the capacitive touchpad, the touchpad calculates the pressure by using a change in the area (△ A = A _p -A _t ) where the finger 3403 touches the touchpad when the finger presses the touchpad. To calculate. However, this is when the insulator 3402 that protects the touchpad from fingers is inelastic (FIG. 34 (D)) and if the insulator is elastic, as shown in FIG. 34 (C), when the finger presses the touchpad The distance between the electrode and the finger on the pad is shortened by Δd ₁ , resulting in a larger capacitance change than when only the area is changed as shown in the capacitance calculation equation below.

C = εA / d (1)

Where C is the capacitance, ε is the dielectric constant of the material filling the electrode with the proportional constant, A is the area of the electrode, and d is the distance between the electrodes.

As a result, the distance and the distance also affect the pressure calculation of the touch pad, so that the difference between the pressing pressure and the touch pressure becomes larger, and the character input method according to the pressure change becomes more accurate.

In the twelfth configuration of the present invention, instead of pressing the corresponding key on the virtual keyboard, the space used most frequently during character input and the backspace for error correction can be easily executed by only moving the left and right fingers as shown in FIG. That's how you do it. This method does not need to find a position corresponding to the letter key, it can be easily performed simply by moving the finger to the left and right. In addition, the right touchpad uses the left and right touchpads for the space, while the left touchpad takes the backspace for the left touchpad, and the position of the finger on the left and right touchpads naturally lies on the left side of the touchpad. In addition, the joint movement is also convenient to move left-> right-> left. However, it is not necessary to fix the space so that the right finger takes charge of the back space and the left finger takes care of it. In other words, depending on whether the starting point is left or right with your right finger, you can have both space and back space run.

The thirteenth configuration of the present invention is to provide a method for implementing the entire keyboard on a virtual keyboard even using only one touch pad. As shown in FIG. 37A, additional auxiliary function buttons 3701-L and 3701-R are arranged, and two switches are placed below the function buttons so that at least one of these switches is pressed when the function button 2303L or 2303R is pressed. The character that is pressed and input becomes the character of the key corresponding to the left side of the two key combinations on the virtual keyboard. For example, in (IV) of FIG. 37B, move the cursor to the combination of 'F' and 'L' corresponding to the fourth row of the middle column of the virtual keyboard and press the function button 2303R with the right index finger to input 'L' and the left thumb. 'F' is input when the auxiliary function button 3701-R is pressed. In other words, the auxiliary function buttons 3701-L and 3701-R are added, so that the same configuration as that of the intact virtual keyboard shown in FIG. In particular, it can be advantageously applied to small digital electronic devices in which it is difficult to mount two touch pads in space. Furthermore, the installation of the auxiliary function button brings the advantage that the same input method as the existing keypad telephone can be applied even in the so-called telephone mode (vertical mode) operation. As shown in FIG. 38, when the switch 1 of the function button 3701-L is pressed and in the 'on' state, the letter corresponding to the first letter of each key of the virtual keypad to which a combination of three letters is assigned is input. When is 'on', the third character of the three letter combinations assigned to each key is entered. If the auxiliary function button 3701-L (or 3701-R) is not pressed, the character corresponding to the second character of the three character combinations is entered. For more convenient character input, press the function buttons (2303-L, 2303-R) for more than a certain amount of time (Tkey, p) that you specify. Capital letters for alphabet, second key for other languages set) is input, which makes the character input easier. Even in the structure having only one touch pad, the telephone mode can be applied in the same manner as shown in FIG. However, in the case of FIG. 26B, an extra touch pad 2603 is in charge of the global mode, whereas in FIG. 38, there is only one touch pad, and the global mode and the phone mode cannot be simultaneously executed, and only one of them is applied to the cursor. The only difference is that the movement is operated in global mode (displacement coordinate system) or character input mode (absolute coordinate system).

The fourteenth configuration of the present invention is to apply the auxiliary function buttons (3701-L, 3701-R) to the existing keypad mobile phone to facilitate text input. In general, the keypad mobile phone assigns two or three letters to each key for space limitation, so that the first to third letters can be entered by pressing once, twice, and three times. However, the character selection by the multi-press method is that when the same character must be input continuously, the same character must be continuously input by pressing the input position shift button in the middle. In other words, in order to input 'cc' in the existing keypad mobile phone, for example, the keypad mobile phone shown in FIG. 40 is described by pressing the key designated 'ABC' three times, and then pressing the right shift key (>) and then 'ABC' again. Press the key again three times. 'Cc' is input by 7 key presses. On the contrary, the keypad cellular phone equipped with the auxiliary function button shown in FIG. 40 is pressed by only two keys to complete the input of 'cc'. Furthermore, in order to input the uppercase 'CC', an additional key operation for selecting the uppercase letter is required, and the concept of the present invention shown in FIG. 40 increases the efficiency of the input by 3 to 4 times.

The fifteenth configuration of the present invention does not use the auxiliary function button shown in Figure 37, instead of the original two function buttons are responsible for each of the two characters assigned to each key of the virtual keyboard, generally several characters in the mobile phone Is given to replace the way each key is pressed once and twice (or even three times) in succession, implementing the first and second characters, respectively. That is, an example of such a configuration is shown in FIG. 41. In FIG. 41A, there is no auxiliary function button 3701 shown in (I) of FIG. 37 (a), and instead the left and right function buttons 2303R and 2303L are provided. If it is located on the 'O / P' combination key, pressing the left button (2303L) in this state inputs 'O' and pressing the right button inputs 'P'. Even if several characters are assigned to a single key, a method of distinguishing and inputting each character by one pressing operation is provided. FIG. 41C illustrates a sequence of pressing a key of a virtual keyboard to input a sentence of 'door opens'. However, a key indicated by a thick border means pressing the right function button 2303R, and a thin border means pressing the left function button 2303L. In addition, the curved arrow of FIG. 41C refers to an operation of rapidly moving the thumb from side to side on the touchpad as described with reference to FIG. 35. Comparing the configuration of the present invention with FIG. 43 showing a case of a general keypad mobile phone, it can be seen that the number of pressing keys is reduced to less than half, which is an advantage of the fifteenth configuration of the present invention. In particular, compared to the sentence input method using the function auxiliary button shown in Figure 37 has the advantage that the user is easier to adapt. The component has the advantage of enabling more intuitive function button operation because the character input is made by pressing only one of the left and right function buttons. The character array of the virtual keyboard may be arranged according to the user's convenience, in the form of alphabetical arrangement shown in FIG. You will be able to choose. Fig. 42 shows a text input flow chart according to this configuration of the present invention. The core of the flow chart is the selection process 4201 of 'function button for text input' in the text input logic.

The sixteenth configuration of the present invention is applied even when the virtual keyboard of the fifteenth configuration is operated with one hand. This means that you can assign two letter combinations to each key of the virtual keyboard, and because you cannot use both left and right function buttons for one hand operation, you can press one function button once and two times. If you press once, the method of inputting the second character when pressing the first character twice from the combination of the two characters is applied. However, unlike the general keypad mobile phone shown in FIG. 43A, since the 'call' key is not required in the actual character input mode, the virtual keypad was omitted from the virtual keypad. Furthermore, the 'cancel' key was also omitted. Can now be specified. When the alphabet is applied to the virtual keypad having a 3 * 5 arrangement, the range of the corresponding touchpad can be handled by the left and right thumb, so that the operation becomes easier. The backspace and space keys required for character entry can be replaced by the method shown in Fig. 35, so that the number of keys for assigning alphabets is sufficient, so that only two characters can be assigned to each key. . Comparing the configuration of the present invention with a general keypad mobile phone, the general keypad mobile phone shown in Figure 43 is given three letters to one key, in some cases it is necessary to press the key three times in succession As a result, the amount of text input work is more than doubled compared to the components of the present invention shown in FIG. In addition, in order to enter the same character in a continuous keypad mobile phone, type the character once and then use the arrow keys (arrow shown below the position between 'o' and 'o' in the door of Fig. 45B-4501 '). You have to press and press the letter again. In this case, the direction key to move to the next space in the text input sentence is located at the longest distance of the range of joint movement of the thumb from the keypad, which makes the text input more difficult. The present invention for overcoming this is that when the finger is dropped from the touch pad and touches the touch pad again (4401), the effect of pressing the direction key of the keypad is almost achieved without the movement of the finger. Furthermore, even when the finger is in contact with the touchpad, if the finger is out of the region of the character to be continuously input and returns to the region of the character (4402), the result is the same as pressing the arrow keys on the keypad. do. 44 shows in flowchart form the operation of the sixteenth configuration of the present invention. The point of this flowchart is that it overcomes the shortcomings of the existing keypad cell phone, which requires pressing only three times by assigning only two characters to each key, and can handle 26 characters with just one thumb. Furthermore, instead of pressing the existing direction key (4501 of FIG. 45), the method of inputting the same character consecutively in the process of inputting characters is to separate the hands from the touch pad and then touch them again and the area of the currently input character. The implementation of the escape method significantly shortens the movement of the finger, which increases the convenience of the user more than twice.

A seventeenth configuration of the present invention is an implementation of a method of using a pressure sensing function of a touch pad instead of a function button as a function of a function button, that is, a letter input execution command tool. Theoretically, the touch pad has a value greater than '0' when the contact is made with the pressure of the fingerless state as '0'. In the case of the commonly used capacitive touch pad, since the pressure value is calculated in proportion to the contact area, the same pressing pressure (Zpr in FIG. 32) cannot be applied to everyone because the size of the finger is different for each person. As shown in the figure, when the thumb operating the actual touchpad moves on the touchpad, when the area of the thumb that touches each area touches the upper left side of the touchpad (Fig. 46 (I)), and when the thumb touches the lower right side (Fig. 46 (I)) 46 (IV)) is the smallest. Accordingly, the touch pressure Ztch and the pressing pressure Zpr described with reference to FIGS. 32B to 33 and 33 have different values in all areas of the touch pad. 32B-D and 33, the setting of the touch pressure and the pressing pressure was used as a means for preventing a mistake that may occur during character input, but in this element, they provide a method to replace the function of the function button. do. That is, FIG. 46 (I) shows the operation of pressing the 'call' key in the phone call mode. Thus, when the touch pad area corresponding to the 'call' key is pressed, the touch pressure (Ztch) and the pressing pressure (Zpr) If the values are 160 and 220, the touch pressure Ztch and the pressing pressure Zpr reach 70 and 100 when the touch pad region corresponding to the '#' key corresponding to FIG. 46 (IV) is pressed. This difference is because the pressure value calculated by the touch pad is obtained not by measuring the actual mechanical pressure but by the pressure conversion method used by the touch pad. For example, in the case of a touchpad pointing device using capacitance, the pressure it calculates is a value corresponding to the area where the object (finger) touches the touchpad, so that the pressure increase without changing the area cannot be measured by the touchpad. do. Similarly, even when there is no change in physical pressure, the touch pad calculates an increase in pressure when an area of the object touches the touch pad occurs. This is a common situation with two-dimensional planar pointing devices such as touch pads or touch screens. Therefore, if the pressing reference pressure (Z ^* pr) corresponding to the execution of the character input is designated as a constant constant (C ^* pr) in all areas of the touch pad, the input is made only by touching a finger in some areas of the touch pad. In some areas there is no input at all. For example, if the pressure reference pressure is set to 130, the pressure value of the touch pad area corresponding to the 'call' key (calculated in the logic circuit of the touch pad according to the change in capacitance, not the pressure caused by the actual force) is If the finger is always in excess of the reference value, even if the contact is input, in the case of '#' no matter how pressing the thumb can not exceed this pressing reference pressure occurs a problem that the character input is not made. This problem is caused by the thumb movement of the thumb is caused by the joint movement of the thumb, so when the thumb joint is bent, the thumb area close to the nail touches the touch pad, minimizing the contact area and extending the joint of the thumb. This is because the large area where the fingerprint of the thumb is developed is touching and the area of contact is large. In consideration of such a change in the contact area of the thumb, it is the seventeenth configuration of the present invention to set the pressing reference pressure for each key region. In particular, when initializing the mobile phone, as shown in FIG. 47, the setting of the push reference pressure and the adjustment of the coordinate system are simultaneously performed. Therefore, in the flowchart of FIG. 47, the pressing reference pressure Z ^* _pr means a value in each key region, and the pressing threshold pressure Z ^* _{pr , th} is also a constant defined for each region. On the other hand, the reference pressure Z ^o _pr in FIG. 36 is a principle for preventing a case in which a character other than the character to be input is made when a finger moves in the operation of pressing the touch pad or pressing a function button. The value set in the description of. Therefore, if this value means a uniform value for the entire touch pad area, it is practically impossible to apply it as a pressing pressure value in operation of the touch pad. To do this, however, the thumb must always maintain a constant area of contact with the touchpad. To do this, it must be operated on the touchpad by parallel movements of the arms or hands, not by the joint movement of the thumb. Therefore, the motion by the parallel motion of the finger or the arm is not so ergonomic of the human body operating the portable digital device implementation of the function button using the touch pad pressure recognition function by this operation. In summary, the seventeenth configuration of the present invention is to add a function button function in addition to the pointing function, which is a basic function of the touch pad, to facilitate character input. Initialization is involved to accomplish this process, which is summarized in FIG. The reason for this initialization process is as shown in the formula (1), because each user presses the touch pad, the size of the finger is different, and since the area is changed according to the direction in which the finger touches the touch pad, the process of correcting this is pressed. It is a reference pressure setting, and the user does not know which point the finger refers to because the finger touching the touch pad does not touch a point of the touch pad but touches a certain area. Therefore, the input coordinate system setting step is to match the center of each key on the virtual keyboard or the virtual keypad corresponding to the point where the user feels to refer to the center of each key felt by the finger. Simultaneously setting the pressing reference pressure corresponding to each key by pressing all keys, the X'-Y 'coordinate system may be set automatically or each setting operation may be independently performed as shown in FIG. In either process, after setting the reference pressure and setting the input coordinate system, the tapping time setting step is continued and the tapping setting time can be different for each user. It is possible to reduce the number of function buttons of the actual portable digital device, and ultimately to omit all function buttons so that the space occupied by the function buttons can be occupied by other purposes such as the display screen. It can grow big.

In the eighteenth configuration of the present invention, unlike the seventeenth configuration, regardless of the size of a finger different for each user, the pressing reference pressure of an area corresponding to each key of the virtual keyboard or the virtual keypad on the touchpad is related to the area on the touchpad. It is a way to have a constant. In brief, in the case of the touch pad using the electrostatic method, the capacitance is increased as the contact area (A) and the distance (d) increase as the pressure applied by the finger increases based on the equation (1). It is to use the corresponding. Specifically, in the case of simply touching and pressing operation, if the distance from the touch pad of the finger is different, the range of the pressure value (touch pressure, Zt) generated by the contact is simply pressed. It is always made lower than the range of the pressure value (pressing pressure, Zp) which generate | occur | produces in so that a pressurization pressure threshold value (pressing reference pressure) may be set in these numerical boundaries. In Equation (1), if Z is expressed as a function of S (contact area) and d (distance from the touch pad of the finger) and displayed in a three-dimensional graph, it can be expressed as shown in Fig. 48 (A). However, since Z is expressed in arbitrary units, the proportional constant (ε) of Equation (1) is set to 10, which is a constant value similar to the values of FIGS. 49 and 50 where the actual pressure values of the touch pad are measured. It is a constant related to the dielectric constant of and has a value of '1' for air, '3' for paper, and '7' for rubber, so the protective layer between the touch pad sensor and the finger is polymer. This is an approximation considering the material. In fact, when the distance between the touch pad and the finger is '0', the pressure value Z becomes infinity, and in FIG. 49, the range of x and y is arbitrarily set to 0.03 <x <0.1, 0.5 <y <1.0 was set. Considering the units of these variables as cm and cm2, the actual situation is outlined. FIG. 48 (A) shows a change in Z (pressure) value according to the continuous change of d and S, and FIG. 48 (B) shows that S (contact area) continuously changes within a given range, but d ( The distance between the fingers) is expressed as a discontinuous section (0.03 <d _p <0.037, 0.088 <d _t <0.1) divided by Δd in the case of the touch operation and the pressing operation. As shown in FIG. 48 (B), if the distance Δd is set so that the distance from the touch pad of the finger can be distinguished between the touch operation and the pressing operation, the range of the pressure value generated in the touch operation (FIG. 48 ( In B), Zone 'T'-touch zone-) is always lower than the range of pressure values generated in the pressing action (corresponding to Zone 'P'-pressing zone- in Figure 48 (B)), so that the entire area of the touchpad Allows you to set one push reference pressure. This is because the principle that the touch pad calculates the pressure is due to the change in capacitance, and therefore, the finger has a greater influence on the calculated pressure value Z than the change in the touch area S than the change in the touch area S. To show. By using the influence on the pressure value of the separation distance, an elastic membrane is coated on the surface where the finger of the touch pad touches to obtain one pressing reference pressure over the entire area of the touch pad. Always keep your fingers at a constant distance from the touchpad. 49 and 50 show pressure values obtained when there is no elastic body (FIG. 50) and when a 1 mm thick elastic body is attached to the touch pad (FIG. 49) using a commercially available touch pad. In order to easily express the distribution of pressure values in FIGS. 49 and 50, four three-dimensional graphs are shown. In each case, (A) and (A ') are viewed from different heights in the same direction (B). ) And (B ') look at the same height in the direction of (A) and (A') rotated 180 degrees. First, FIG. 50 is a pressure measured by holding a 4cm * 6cm touch pad in the form of FIG. 46 without an elastic body and touching a finger with an internal region of 2cm * 4cm except for an area of 1cm width outside the touch pad. Value Z. (0, 0) of the (x, y) coordinate system of the graphs shown in FIGS. 49 and 50 represents the lower left side of the touch pad while the touch pad is held as shown in FIG. 46, and (2, 4) is the right side. Indicates the top. As can be seen in Figure 50 (A), the pressing pressure (Z _p ) shows a distribution of 118 ~ 255, the touch pressure (Z _t ) shows a distribution of 90 ~ 155. The surface distribution of these pressures is the surface of touch pressure (S _t ) and the surface of pressing pressure (S _p ), and the surface of criteria (S _c ) is the flat surface showing the maximum value of the touch pressure. Although already described in the seventeenth configuration of the present invention, the distribution of touch pressure and pressing pressure shown in FIG. 50 shows that one touch reference pressure cannot be set in the entire touch pad when the touch pad without an elastic body is used. As an example, if the reference pressure is set to the maximum value of the touch pressure (S _{c in} FIG. 50), the pressure surface S _p showing the pressing pressure falls below the reference pressure surface S _c no matter how much the finger presses the touch pad. An operation following a command cannot be performed. To overcome this problem, when the reference pressure is set smaller than the maximum value of the touch pressure, that is, when the reference pressure surface S _c is lowered in the Z-axis direction in FIG. 50, an area in which the touch pressure surface rises above the reference pressure surface is generated. In this area, an error that causes a command corresponding to a pressing operation to be executed by a simple touch is generated. Therefore, FIG. 50 illustrates a reason why a different pressing reference pressure should be set in each area of the touch pad. On the contrary, in FIG. 49, since the elastic body is attached to the touch surface of the touch pad, the range of the touch pressure and the pressing pressure value is smaller than that of FIG. 50, and the pressing pressure surface S _p is sufficiently formed from the touch pressure surface S _t . Even when the pressing reference pressure is set to the maximum value of the touch pressure, the problem shown in FIG. 50 does not occur. Therefore, in the case of the touch pad using capacitance, a single reference pressure can be set in the entire area of the touch pad by using a method that can cause a difference in the distance between the fingers in the touch state and the pressed state. Replacing the function button switch is the eighteenth configuration of the present invention. Looking at the advantages of this configuration, without the switch located on the bottom of the touch pad shown in Figure 22 or the separate function button of the touch pad shown in Figure 23 performs a button function of the touch pad brings a number of advantages. . Another advantage is that once separate switches are installed, no separate space is required to operate them, the installation space of these switches can be used for other purposes, and there are no moving parts, unlike mechanical or electronic switches. In this configuration, an elastic body may be used as a method of adjusting the separation distance. However, inelastic materials may have irregularities or holes having a predetermined interval in the plate shape, thereby producing an effect corresponding to the irregularities. In this case, unlike the elastic body, the change of permittivity occurs according to the separation distance. In other words, when the finger touches the uneven part of the touch pad, there is an air gap between the finger and the touch pad, so that the actual dielectric constant of the capacitance changes to '1', but when the finger reaches the pressed state Since the air gap between the finger and the touch pad is filled, the dielectric constant is changed to the dielectric constant of the finger rather than the dielectric constant of the air, so according to equation (1), the change in capacitance can be achieved by increasing the dielectric constant An increase caused by the change of is also generated. In this case, even if there is no elastic body, the control of the separation distance by the elastic expansion and contraction is to use the elasticity of the finger, not the elastic body. When the elastic body is used, the finger approaches the touch pad as a whole. Only the finger area touching the touch pad approaches the touch pad, so the change in capacitance proportional to the change in the separation distance according to equation (1) is relatively small at the same separation distance to the elastic body without irregularities, but as mentioned above, As the air in the recess is filled with the finger, the change in capacitance can be made at the same level. In other words, when the finger touches the iron part of the unevenness of the touch pad and presses the touch pad, the finger reaches the uneven part due to the elasticity of the finger, which corresponds to the separation distance provided by the elastic body. By having a distance shift to make the elastic body can have the same effect as attaching to the touch pad. However, in the case of the uneven type, when using the touch pad as a pointing device, the use feeling may be lowered due to the unevenness of the surface compared to the flat surface, but this disadvantage may be overcome by adjusting the bend or the uneven width of the uneven surface. . In summary, the elastic body is attached to the touch pad to distinguish the touch operation from the pressing operation so that in each case, the magnitude of the pressure value calculated by the touch pad is distinguished so that a single pressing reference pressure can be set. In the case of the non-elastic material, the point of attachment to the touch pad is the same as the distance from the touch surface of the touch pad to the distance at which the finger can be sensed, but it is different in that it has an uneven shape to use the elasticity of the finger. In the case of the elastic body, it is also possible to use the elasticity of the finger by making the uneven shape or groove. This is because it can be used in the case of the configuration described below. Furthermore, in the case of an elastic body such as a polyurethane sponge foam, there is a region containing air, which results in a larger capacitance change even when the same separation distance is changed, and a method of reducing the separation distance that distinguishes the touch state from the pressed state is proposed. Will be provided. For this reason, as shown in Fig. 49, the velcro loop fabric used in which the contact state and the pressed state are separated within a distance of 1 mm includes an air region, and in the pressed state, these air regions are pressed so that the dielectric constant of the original air is reduced. Since the change from '1' to the unique value of the fabric much larger than the air, the capacitance change is amplified and accordingly shows the result of distinguishing the contact state from the pressed state with a thickness of about 1mm. Similarly, using a 1mm-thick polyurethane foam sponge with a density of 0.44 g / cm3 achieves the same result as in FIG. 49, which also removes air when the air-filled portion of the sponge is compressed and instead fills with a urethane sponge. The resulting change in permittivity results in greater pressure (capacitance) than when the thumb touches the touchpad (strictly on the sponge attached to the touchpad), even when the sponge is pressed with a small finger such as a little finger. do. Thus, when using the air having the lowest dielectric constant, the change of capacitance is determined by the distance of the finger from the touch pad among the area (S) and distance (d) where the finger touches, which is a variable shown in Equation (1). It is. In this case, the touchpad can act as a proximity sensor, which also acts as a pressure sensor because the distance is closer depending on the pressure of the touchpad. The structure of the touch pad to which such a change in capacitance using air is applied is shown in FIGS. 78B1 and 78B2. FIG. 78B1 shows a method of using a sponge as an elastic body, and FIG. 78B2 shows a structure in which a lower portion of a finger touching portion, such as a rubber dome switch of a keyboard, becomes an empty space instead of a sponge. The difference between these two cases is that in the case of sponge, the air layer is uniformly distributed inside the sponge, whereas in the rubber dome switch structure, the air layer is distributed in the lower part. The structure directly touches. The advantage of the rubber dome switch shape of FIG. 78B2 is that the configuration is simpler than the sponge-based method shown in FIG. 78B1, and the manufacturing of parts is the shape of the protrusion 7785 'on the silicon rubber plate 7851'. It can be easily made by the process of injection (injection) of the structure, and furthermore has the advantage that can be finished in a single process even with the attachment to the actual touch pad. FIG. 78C shows the shape when the structure shown in FIG. 78B is actually combined.

The ninth configuration of the present invention is to apply the touch pad method having the function of the function button, that is, the built-in or the exterior of the present invention, to a smart phone of a touch screen method that performs command execution by simply touching. Although it is the same in that it is used in a touch screen method, a touch pad method or a user interface based on a two-dimensional coordinate system, the touch pad method uses a cursor to operate a switch to perform a command after selecting a menu, but the touch screen method is used. Has different characteristics in that menu selection and command execution are performed simultaneously, so that no separate switch is required. In particular, in order for the touch screen to simultaneously perform menu selection and execution, the size of the on-screen menu, especially the virtual keyboard, needs to be large enough to be easily selected by the finger, which is a disadvantage compared to the touch pad method. There is. If you use a stylus pen, you can place a menu or a virtual keyboard in a small space, but this decreases your work efficiency and is less preferred than touching the screen directly with your finger. On the other hand, the touch pad method does not have a problem even if the screen size is small compared to the touch screen method because the menu can be selected by using the pointer even if the menu of the screen is small, and in particular, a small portable device for directly operating the virtual keyboard by hand. It is more suitable for digital devices. It is the ninth configuration of the present invention to apply the advantages of the touch pad to a smart phone of a touch screen type. This is because the touch pad is not installed in a separate space from the screen of the digital device, but is disposed on the screen of the digital device, and the touch screen method and the touch pad method can be mixed by distinguishing the touch pressure and the pressing pressure shown in FIG. It is a way to make it possible. However, a touch pad for this purpose should use a transparent touch pad, and a touch pad to which a transparent electrode such as Synaptics' Clearpad (Clearpad), which is already commercialized, is applied. As described in the eighteenth configuration of the previous paragraph, if you want to place the transparent touchpad on the digital device, but want to use it as a touchscreen, touch the touchpad without placing a finger-spacing material such as an elastomer on the touchpad. Calculate the pressing pressure value, and the command is executed by the touch operation for executing the menu. And if you want to use a conventional touch pad method, if you touch a finger-separated material, such as an elastic body, simply perform the pointing function, and only to act as a button so that the execution command can be performed only when the touch pad is pressed with a finger. It is a way to give. The advantages of this configuration can be seen by comparing FIG. 51 which shows a case of a smart phone to which a touch pad is applied to the screen and FIG. 26B which shows a case of a mobile phone having a touch pad separately. The smart phone of FIG. 51 does not require a space for the touch pad shown in FIG. 26B (B) because the touch pad is disposed on the screen of the mobile phone, and furthermore, the position of the key on the virtual keyboard 5101 where the finger is placed is displayed on the screen. Because it can be directly confirmed in the form of a more intuitive digital device also brings the advantage that the user's convenience is further increased. In order to prevent the elastic body placed on the touchpad from blocking the virtual keyboard, the opaque elastic body 5103 has a hole at a position corresponding to each key of the virtual keyboard or a transparent elastic body such as a silicone gel and a foamed sponge ( 5102) allows the user to check the virtual keyboard, and furthermore, when such an elastic body floats and attaches, the entire screen can be utilized. For example, in the case of watching a movie on a mobile phone, the elastic body is detached and switched to the touch screen mode, which brings the advantage of making the entire screen available. For convenience of the user, the elastic body attached to separate the finger from the touch pad touch surface may be fixed to the digital device with a hinged structure to facilitate attachment and detachment to the touch pad. According to this configuration, when a touch screen-type digital device is used together with a touch pad, especially in a text input method using a virtual keyboard, a finger hides a key of a virtual keyboard on a screen, and thus a 'key' indicated by a pointer (cursor) is indicated. To overcome the invisible situation, as shown in FIG. 52, the current pointer (cursor) is shown on the screen area other than the virtual keyboard to see the position of the hand. do. As the elastic body, the fabric corresponding to the loops of the Velcro is an elastic body that is resilient and does not enter the pressure so that the actual physical pressing pressure is almost the same as the touch pressure. When applied to the application, it does not put any pressure on the screen at the time of the pressing operation, and furthermore, since it is an elastic body, it also has the advantage of preventing the damage of the screen from external impact. However, due to its opacity, it may be used in the form shown in FIG. 51 (C), that is, the portion corresponding to the center of each key.

The twentieth configuration of the present invention is a pointer function in the case of a general touch screen mobile phone without a push switch function as shown in Fig. 23 or 52 (when a finger moves on the screen, the active part on the screen is changed accordingly). It relates to a method of easily entering a text using). This configuration can be equally applied to a touch pad. The difference between the touch pad and the touch screen is that a pointer satellite window is not required as shown in FIG. 65. This is because the touchpad does not cover the virtual keyboard because the finger is not placed on the screen unlike the touch screen, and the pointer satellite window may be directly displayed on the virtual keypad. The core of this configuration is the same as a mobile phone with a general touch screen in that the virtual keyboard is placed on the screen and touched with a finger to touch an area corresponding to each key, but the difference is that the input of letters, symbols or numbers is different. It is not made when the finger touches the screen, but when it is moved away from the screen to enable the function of the function button only with the existing touch pad without a separate switch having the function of the function button. Therefore, this configuration is that even when a finger is in contact with the screen of a mobile phone or digital device, unlike a general touch screen, a command is not executed, and a function of moving a pointer like a touch pad is performed. Nevertheless, the difference with the touchpad is that the area at which a finger touches the device's screen can execute commands, which are then displayed in the satellite window for pointer and the movement of the finger is satellite. The pointer is placed in a divided area of the window so that the input is completed the moment a finger falls from the screen of the device. This point will be described by taking an example of the character input shown in FIG. In order to input 'u' using the existing T9 type keypad, the key designated 'STU' must be pressed three times in succession. On the contrary, in the twentieth configuration of the present invention, as shown in FIG. 54 (A) -I, the user touches the 'STU' key and then moves his hand to the right (FIG. 54 (A) -III). Is input. That is, one continuous operation produces the same result as pressing the 'STU' three times on the T9 keypad. Even in the T9 keypad type character input method to input 'u' twice in succession, input field for waiting a certain time or moving the input box to the next character input step after entering the first 'u' The shift key must be pressed, but this delay time or additional key press operation is not necessary in the configuration of the present invention. It provides a way to save time required for input and significantly reduce finger fatigue. According to the convenience of the user, the area corresponding to the letter assigned to each key can be arranged not only to the left and right of the active key but also to be arranged up and down, which is described with reference to FIG. 58. As shown in FIG. 55, the keyboard layout of the virtual keyboard for input of symbols (I), numbers (II), and two languages (Korean ↔ English, III) consists of one operation for convenience of input such as a general keyboard. It has the advantage of bringing the castle. And even in the narrow space of mobile phones and digital devices that can be gripped with one hand, the visual arrangement of the full keyboard and the intuitive use method are realized. The touch screen implemented as described above provides the maximum advantage of using the existing T9 system by bringing the limited touch pad function without implementing the full touch pad function as in the ninth configuration of the present invention. In other words, in order to be applied to this configuration, there is no barrier for users to newly adapt the character arrangement system and input method, and the time required for input is drastically reduced. Up to now, the alphabet has three letters assigned to one key, and many times, one key needs to be pressed three times, and furthermore, if you want to input these characters twice consecutively, you need to press six times. It acted as a factor. On the other hand, the configuration of the present invention is that all the character input is completed by one movement following a contact, that is, one continuous operation, thereby reducing the input time by more than twice and converting the layout of the keyboard for mixing symbols, numbers, and foreign characters. It also brings the advantage of being completed in a single finger movement. The advantages of such a configuration are more apparent in Japanese and Chinese input methods as shown in FIGS. 59 and 60. In the case of Japanese, it is inconvenient to press a key up to 5 times to input a single character in the case of a general keypad mobile phone. Has On the other hand, the character input method by this configuration has the same character arrangement as a normal keypad mobile phone in Japanese, making it easy for the user to adapt, and the inconvenience of having to press up to five times to input one syllable with a single finger movement. In case of Chinese, each syllable is divided so that it does not need to convert each syllable one by one, and provides a way to convert one word or one sentence.

The twenty first configuration of the present invention is an extension of the twenty-first configuration above. That is, in the twentieth configuration, when a finger touches an arbitrary key, the letters assigned to the key are arranged in one direction and displayed on the virtual keyboard, and the finger is moved in this direction to release the finger from the position of the character to be input. The first twenty-first configuration consists of the sliding of the fingers in the primary direction of the character, followed by the sliding of the characters in the primary direction, in the secondary direction perpendicular to the main direction of the array with the fingers in contact. It is a way of changing the attributes of each character by sliding. Such a change in the property belongs to a change in height or a change in the sound value of the sound of the character, and the characteristic of the change of the property is preferably brought to the same rules for all letters assigned to the keys touched by the first finger. This additional character arrangement in the primary and secondary directions allows more characters to be specified, thus providing a way to increase the number of characters that a keypad of a mobile phone can have. However, the arrangement in the branching direction does not add new characters, but changes in common to the letters assigned to the main array direction. Only the letters in the main array direction of each key are displayed on the virtual keypad or touch pad. Also, it is a feature of this configuration that the user can easily recognize the change of the character attribute according to the branching direction. Particularly, in the case of Hangul, the keyboard arrangement shown in FIG. 63 allows all vowel characters to be input by one finger linear movement, even though they have two arrangement directions in the case of vowels. This configuration can be applied not only to a finger but also to a PDA using a stylus pen. In this case, the size of the on-screen keys assigned to each character can be more than three times larger (when three characters are assigned to one key). Users can easily select three-fold wider keys and follow subsequent strokes (finger movement) than users can select a narrow-area key.

In the twenty second configuration of the present invention, when two letters are assigned to one key, the reference letter is input at the time when the finger touches the designated key area and the other non-reference letter is located in the area beyond the designated key area. In order to input the non-standard characters as shown in FIG. 66, the input is spaced apart from the touch pad or the touch screen by moving the finger out of the designated key area without having to consider the direction. This gives the user the advantage of not having to consider the movement of the finger.

A twenty-third configuration of the present invention is to provide a method for distinguishing a character input in a contact state and a character input in a touch state when the touch pad or the touch screen has a function of distinguishing a contact state from a pressed state. That is, as shown in FIG. 67, when two letters are assigned to the virtual keypad or the key of the virtual keyboard, the reference letter is input when the fingers are spaced apart from the contact state, and the non-reference letter is pressed through the touch state. It provides a method to be input when spaced from the touch screen. If n letters are assigned to one key, the standard letters are entered when they are spaced apart from the contact state, and the remaining non-standard letters are entered in order according to the number of presses. Will result. In the case of the English alphabet, when three letters are assigned to each key, any character can be input by pressing two times, thereby providing an easier character input method. This configuration of the present invention can be applied not only to the push switch is applied to the entire area of the touchpad, but also to a device having a switch limited to each key. The configuration that can be applied to the entire area of the touchpad is disclosed in US Pat. , San Jose, USA). For example, US Pat. No. 7,151,528 (Cirque Corporation, Salt Lake City, USA) is an example. The configuration applied to the entire area of the touch pad has already been described and omitted, and the case of having a switch limited to each key will be described with reference to the example of FIG. 78 as follows. The touch pad device of FIG. 78 has a structure in which a touch pad is installed below a keypad of a general keypad phone so that manipulation of a mobile phone screen can be performed using the touch pad. In other words, the input of numbers and letters is to press the keypad to perform the same operation method as a conventional keypad mobile phone. When this configuration is applied to this structure, the physical key 7820 maps the key area of the virtual keyboard to 1: 1, then enters a reference letter when the finger touches the key 7820 and then presses the key once. When the finger is released, the switch (7832) is off-> on-> off, and the first one of the non-reference characters is input.If the finger is removed from the key after pressing the finger twice in succession while touching the key (7832) This is how the second of the characters are entered. In the case of a touch pad having a switch in the local area of FIG. 78, even in the case of a typical T9 mobile phone keyboard in which three characters are assigned, one of the existing multi-tapping handrons is assumed, using the same probability as the letter assigned to each key. If the average stroke for entering the character of (1 + 2 + 3) / 3 = 2 is applied to this configuration, the effect is reduced to (1 + 1 + 2) /3=1.3 times. In the case of input, the overall input fatigue is much more enjoyed because there is no push action itself.

In the twenty-fourth configuration of the present invention, each key area constituting the virtual keypad or the virtual keyboard has a certain area in the inactive state, but if the finger touches an area to designate a key and the key is activated, the area to designate the key is It is shown in FIG. 68 to expand and keep the character input stable.

In a twenty fifth configuration of the present invention, in the case of a touchpad that distinguishes a contact state from a pressed state, a function button of the touchpad is replaced by using a depressed state of the touchpad. When the pressing pressure of the touch pad reaches a threshold value corresponding to the depressed state as shown in FIG. 69A, when the button state is turned down (ON) and the finger is spaced apart from the touch pad, the pressing pressure is removed. By giving the function of switching the button state to the up (OFF) state, the finger to operate the touch pad to be responsible for the function of the button. As shown in Fig. 69A-I, the operation of pressing the touch pad to reach the threshold value has the same effect as pressing the button, and pressing the finger away from the touch pad restores the pressed button to its original position. It will have the same effect as that. That is, FIGS. 69A-I correspond to a click operation of a mouse button, and FIGS. 69A-II correspond to a double click. This feature not only eliminates the inconvenience of button manipulation with two fingers or even two hands, but also enables the implementation of a Buttonless Touchpad. Moreover, as shown in another configuration of the present invention, a buttonless touchpad may be used as an input device of a digital device operating with one hand, and a pointing function is performed with one finger (mainly a thumb) together with text input. It allows you. The function of the button function using the pressed state of this configuration replaces the function of the command execution button (left mouse button in case of right-handed operation) among the existing mouse buttons, and the function of the menu expansion button (right mouse button in case of right-handed) is When performed by tapping, there is no problem in implementing a function such as a two-button mouse. However, in this configuration, in order to overcome the disadvantage that the conventional tapping is started in a state where the fingers are spaced, as shown in FIGS. 69A-V, the pressed state is kept long to implement the button hold state and release the button hold state again. It's a different click action. When this method is applied to the function assigned to the existing tapping operation, the existing tapping operation gives a conversion function from the pointing mode to the text input mode of the present invention (or the operation corresponding to tapping occurs in the text input mode). Therefore, to switch from the text input mode to the pointing mode, a conversion function is applied to a key or a certain area on the virtual keyboard or the virtual keypad so that the conversion is performed when this part is touched or pressed.), A pan described later If the function of switching to the mode is given, all functions necessary for the operation of the mobile input device together with the functions of the conventional tapping & touch (continuous touch-> touch-> touch-off-> touch operation in the reference time) It offers the convenience of one-handed execution of commands. The difference between the tapping operation and the pressing operation is that the tapping does not cause the pressing state, but only the touch state is used, and the pressing operation reaches the depressed state. Since the holding time of the state is shorter than the holding time of the depressed or touch state according to the general pressing operation, the difference in time can be used. Thus, the overlapping of the implementation of the function button and the tapping function shown in FIG. It can be used sufficiently distinctly. Unlike a touch pad mounted on a general notebook computer, in the method of using the touch pad shown in FIG. 6, since the movement of the finger is fast, the movement of the finger for the pointing operation has the same result as tapping. In order to overcome this problem, the present invention is not limited to the touch-off-> touch-> touch-off process in which the tapping operation is performed by time, but the reference value (Δx) in which the displacement of the finger (Δx and Δy) is determined in the tapping process. It is such that it is defined within (° and Δy °) (Δx <Δx ° and Δy <Δy °). With this condition, the pointing operation must be performed with the touch pad so that an unintentional tapping operation does not occur even with a rapid movement of a finger. This is another goal of this composition. In particular, the touchpad without a button should be able to drag or scroll with one hand and provide a way to maintain the button-down state. It shows how to implement a drag or scroll operation without a button in the touchpad input device that distinguishes between touch state. Another configuration using the pressed state of the touchpad is shown in FIGS. 69B and 69C, and the description of this configuration is described in detail in the section 'Simple Description' for FIGS. 69B and C. 69d to f show that in the case of a touchpad that does not have a pressed state, an additional switch is mounted on the touchpad to replace the pressed state with the on state of the switch to apply the touchpad operating method of FIGS. 69a to c. Giving.

In the twenty sixth aspect of the present invention, the size of the touch pad and the screen device connected to the touch pad are large, and the button state is maintained even if the finger is separated from the touch pad in order to complete the pointing function when the finger movement is repeatedly performed on the touch pad. Is another configuration that provides a way to implement drag and scroll functionality by providing an area that does not turn off. As shown in FIG. 70, when the moving distance at which the drag function is performed is greater than the upper and lower, left and right distances of the touch pad, when the finger reaches the edge of the touch pad, the finger is spaced apart from the touch pad and returned to the opposite direction of the drag. The touch panel again touches the touch pad to continue the drag operation. The existing touch pad pointing device has a button so that while the button is pressed, the finger may be spaced apart from the touch pad to continue the drag operation. When the method shown in FIG. 69-III corresponding to the configuration is applied, a problem occurs because the touch-off state is executed when the finger is spaced from the touch pad and the button-up state is executed. To overcome this, the method of FIG. 69-IV may be used. However, as shown in FIG. 70, a method using an inactive area of the touch pad may be used. In the inactive region (the region except for the active region 7003 in FIG. 70), the finger touches the touch pad again by maintaining the button-hold state without causing a button-up state even when the fingers are spaced apart. This allows the drag operation to continue while the button-down state is maintained. The non-active area has a function of maintaining a button state even when a switch is made to the touch-off state due to the distance from the touch pad of the finger, but there is no difference between the active area and other functions. In other words, if the pressing pressure is greater than the pressing state threshold even in the inactive area, the switch is switched to the button-down state, and there is no limit to the area where it can be clicked and double-clicked. It will not cause trouble. This configuration can also be applied to a touchpad having a mechanical bottom switch (Bottom SW) shown in FIG. 22. Even if the floor switch is turned on and off, the touch pad is held in the on state while the finger touches the touchpad. This is how the same command is executed. That is, [SW-Off & Touch] followed by [SW-On] with command execution corresponding to [SW-On]-> [Button-down], [SW-Off]-> [Button-up]. -On] transitions to the [Button-down] command execution. This also eliminates finger fatigue and mechanical disturbances if the bottom switch is kept pressed during the drag operation.

In the twenty seventh configuration of the present invention, in the case of a touch pad for distinguishing a contact state from a pressed state, the pressing pressure threshold value and the contact state threshold value do not each have a single reference value, but at the time of the pressing operation and the pressing operation release, the contact operation time. It provides a method to keep the pressed state and the contact state stably by changing the reference value of the pressing pressure at the time of separation and the distance. If the threshold pressure for the contact state and the pressed state each has one reference value, if the pressing pressure stays near this reference value, there occurs a problem that the switching of the non-contact state <-> contact state <-> pressed state occurs repeatedly. As shown in FIG. 72, the threshold value Z _{touch of} the press pressure applied when the contact state is switched from the non-contact state to the contact state is greater than the threshold value Z _detouch applied when the contact state is changed from the contact state to the non-contact state. Once switched to contact state, it is not easy to switch to non-contact state unless there is a reduction in the pressing pressure greater than the difference between the two thresholds (Z _touch -Z _detouch ). Similarly, in a non-contact state, if a pressure is applied which is smaller than the threshold value of the _touch pressure (Z _touch ), for example, the user does not touch the touch pad even when the finger does not touch the touch pad due to unintentional minor contact or sensitive sensitivity of the touch pad. -on) prevents the transition to the state. The pressing pressure threshold value applied to the pressed state is also greater than the reference value (Z _{press - up} ) applied when switching from the contact state to the pressed state (Z _depress ). The pressed state remains stable, which ensures a distinction between clicks and double clicks. And in implementing the button function according to the present configuration, unlike the existing buttons, the movement of the pointer occurs when the user presses the touch pad, so that the pressing pressure is larger than the pressing state threshold value to prevent the user from changing the position of the desired pointer. If the pointer is stopped, the instruction can be executed while the pointer is stopped.

The twenty eighth configuration of the present invention provides a method for implementing a drag function even in a general touch pad or a touch screen that does not have a pressed state. As shown in FIG. 73, the normal tapping and the double tapping each have a reference time at which the intervals of the touch-on-touchoff 7301 and the touch-on-touchoff-touchon 7302 are defined. t _interval ) is already used as a function of click and double-click operation, such as the touch pad installed in the notebook computer. However, in the case of dragging, which is frequently used in pointing work, when the dragging section becomes long, the finger should move away from the touch pad or touch screen and touch again to finish the dragging section. The problem is that the dragging operation is stopped. In order to overcome this problem, the method of releasing the button-down state of the dragging operation is shown in 7303 of FIG. 73 (III). By continuing until 7314 occurs, it is possible to prevent the release of the click-hold state by a simple touch-off and to freely complete the dragging operation.

In the twentieth ninth configuration of the present invention, a plurality of characters are assigned to one key by using a touch pad that distinguishes a contact state from a pressed state. This is an easy way to enter a magnified array of characters on a virtual keyboard. That is, as shown in FIG. 75F, after confirming a key to which a desired letter is assigned on the virtual keyboard, the pressed state is reached to display a plurality of specified hidden characters on the screen, and then move the pointer to the desired letter area to select the desired letter area. The method of inputting a finger away from the touch pad. This method arranges a plurality of keys in a narrow touch pad area so that characters can be easily input into a divided touch pad area corresponding to the number of keys of a conventional keypad mobile phone. However, this is a method for surely selecting an activation key even though a pressing operation for activating the key is not necessary compared to the following configuration. Thus, as shown in FIG. 75aaa, when a key designated at a portion where a finger first touches the touch pad is activated and a plurality of characters assigned to the key are spread out on the screen, the present invention is activated without taking a pressing action unlike the above description. It makes it easy to select multiple characters assigned to keys and provides an input method that does not require any pressing action. However, the problem is that if the area where the finger touches the touch pad is a key area other than the active character area that you want to input, you have to release your finger and touch the finger again to the desired area. There is a problem that needs to be corrected. To overcome this problem, even if a key is already activated by touching the touch pad of a finger and a large number of characters are listed on the screen, if the user moves the finger to an area other than the active key and then presses the touch pad, the finger is moved. The key corresponding to the touch pad area is activated. This is illustrated in FIG. 75Aac and shows how to change an already activated key (row A) to another key (TA row) in Japanese. In other words, the desired character is the other line, but if you select the line (a) by mistake, move your finger to the touchpad area corresponding to the other line when you touch your touchpad. The other line is activated and the characters assigned to it are expanded on the virtual keyboard so that they can be selected. The method of changing the activation key in the touch pad contact state of the finger provides a method that can be easily modified when the selection of the activation key is incorrect in the activation key setting method by touch. It makes it easy to apply activation. If the activation key cannot be changed while the finger is in contact with the touchpad, the activation of the key by touch should be done slowly, especially the character input error caused by the error of the activation key selection brings another inconvenience. . This configuration of the present invention can be applied not only to the push switch is applied to the entire area of the touchpad, but also to a device having a switch limited to each key. The configuration that can be applied to the entire area of the touchpad is disclosed in US Pat. , San Jose, USA). For example, US Pat. No. 7,151,528 (Cirque Corporation, Salt Lake City, USA) is an example. The configuration applied to the entire area of the touch pad has already been described and omitted, and the case of having a switch limited to each key will be described with reference to the example of FIG. 78 as follows. The touch pad device of FIG. 78 has a structure in which a touch pad is installed below a keypad of a general keypad phone so that manipulation of a mobile phone screen can be performed using the touch pad. In other words, the input of numbers and letters is to press the keypad to perform the same operation method as a conventional keypad mobile phone. Applying this configuration to this structure, the physical key 7820 area corresponds to the virtual keyboard key area 1: 1, and when a finger touches the key 7820, the characters assigned to the key area are displayed as shown in FIG. 75aaa. If you move the finger to the position of a key that is not the currently active key and press the finger on the position of the virtual keyboard, the letters assigned to the key will be arranged to be enlarged on the virtual keyboard. Character input can be performed in the same way. In order to use this structure more conveniently, the physical key is used only as a switch device without the need for the keypad switch to correspond 1: 1 with the key area of the virtual keyboard and the area of the physical key 7820. It is. In other words, even if the physical key distance is larger than the finger, the pressing operation can be pressed regardless of any key, so that the touch pad can be pressed. That is, even if the physical key is too wide, the key post may press the key pad 7824 to operate the switch 7832 by pressing one or a plurality of keys in which the key presses the touch pad area. Even if the interval of is too small to operate several switches by pressing several keys at the same time, it is necessary to connect these switches in a parallel relationship so that at least one of them is pressed to perform a pressing operation. After all, the number of switches, whether they are single or plural, does not make sense, and all of these switches need to function as a unified switch. In the same vein, the advantage of the present invention is that the touch pad is fixed in structure, and instead, only the elastic body positioned on the touch pad is moved so that the movement of the finger in the pointing and text input tasks is relatively low and the strength is low. You have efficiency. 78g shows this point. Particularly, the circular part indicated by the dotted line in FIG. 78G1 (B) shows a pressed state. In the Cirque patent, only a part of the elastic body is pressed as compared with the case where the entire touch pad needs to be moved, which shows the same effect. The components of FIG. 78G1 are the same as those of FIGS. 78B1 and 78C1, except that a pillar 7558 that can press a switch under the touchpad is added. Advantages of the present invention are that not only the use of the elastic body but also the divisional use of the elastic body shown in FIG. 70 and furthermore, it is possible to make a hole in the center of the elastic body as shown in FIG. 78b3, 78b4 and 78c2, 78c3 and 78c4 instead of air-containing elastomers such as polyethane foam sponge, such as silicone rubber (Fig. 78b2) or 0.2 mm thick polyethylene or polypropylene film When the film having the bending property is separated from the touch pad by the spacer 7772 to form an air layer, not only the sponge can be distinguished from the touch state and the pressed state, but also related to lighting, it can be transformed into various structures. Even in these air layers, as shown in FIGS. 78g4 and 78g5, metal domes or springs can be inserted to provide a feeling of depression or increase resilience. Unlike Cirque's patent, it is not necessary to have a switch 7832 below the touch pad, and a tick switch 7857, such as a metal dome, which is not connected to a circuit which can give a feeling of switching operation, can be arranged so that a user can use the touch pad. You can also feel it pressed when pressed. The structure of the touch pad module of the present configuration shown in FIG. 78 shows a change value of the correction capacitance in which the touch state and the pressed state shown in FIG. 49 are distinguished. In particular, when the distance between the touch pad and the surface where the finger touches becomes narrow, the touch surface St and the pressing surface Sp shown in FIG. 49 cannot be separated regardless of the finger contact area, and the maximum value of the touch surface St is pressed. In the case where it becomes larger than the minimum value of, the z-axis value of FIG. 49 is divided by the area where the finger touches, instead of the pressure value Z of the touch pad, which is generally calculated from the capacitance change, and Z '(Z / A-Here, Z is a pressure value calculated from pure electrostatic change due to a touch, and A is touched area calculated from the change of electrostatic charge along XY coordinates This makes it possible to ignore the change in pressure. Therefore, based on Equation (1), if the area is removed from the factor that can cause the change in capacitance, the calculation of the pressing pressure is simply performed by the separation distance from the touch pad of the finger and the finger as the finger presses the touch pad. Another element of the present configuration is that the amplification effect of the capacitance change caused by the disappearance of the air layer disposed between the touch pads acts as a variable to facilitate the distinction between the touch state and the pressed state.

According to a thirtieth configuration of the present invention, as shown in FIG. 77, a method of distinguishing a contact state from a pressed state, that is, applying a dividing value of a pressing pressure of a touch pad using an elastic body to a multi-contact touch pad to apply a function of a function button. To provide.

In the thirty-first configuration of the present invention, as shown in FIG. 79, when a plurality of letters are assigned to one key, when the finger touches a touch pad area corresponding to the key, the 12 o'clock direction is symmetrically around the key. Arranges the characters specified in order from. In this arrangement, the right handed or left handed can always apply certain rules. Especially, as shown in FIG. 80, when the number of letters assigned to each key is the same and has a certain rule, the letters assigned to each key can be remembered. If you do not need to remember only the characteristics of the characters assigned to each key, you can easily learn how to input characters. Therefore, the touchpad input device that distinguishes the touch state from the pressed state of the present invention sequentially arranges multiple groups assigned to the same key by sequentially pressing the same active key together with the activation key conversion function shown in FIG. 75Aac. In addition, it is arranged with a certain rule in a position immediately adjacent to the activation key to provide a method for easy input, so that the optimal input method according to the user's taste is adopted. In other words, if the finger movement distance is long and there is no push action, as shown in FIG. 75C, all characters assigned to each key are arranged on the virtual keyboard so that the user can select them at once, and vice versa. For users who prefer to be as short as possible, a number of characters assigned to one key can be grouped according to a certain rule and arranged on the screen according to the number of times the touchpad is pressed. Make sure you choose a method that doesn't deviate.

The thirty second configuration of the present invention is a case in which two characters are arranged on each key in a virtual keyboard as shown in FIGS. 81 and 82 so that one character is input by one pressing operation. It is a method to make it easy to input the characters having the initial, neutral, and finality by arranging. For this method, the number of columns can be adjusted to 5-7, and FIGS. 81 and 82 show an example in which the number of columns is fixed to five. If the vowel changes are small, such as Chinese, it is possible to input only by the touch state. However, when additional arrangement such as Korean, Japanese, and Hindi is required, the vowel can be input using the pressed state. Furthermore, in the case of Japanese, there is a character corresponding to vowel, but in reality, it is not combinatorial type like Hangul, and each character already contains vowel, so by adding a subtype vowel in the form of Hangul, the actual consonant + vowel system is constructed. You can easily input while using the existing dial system.

A thirty third configuration of the present invention relates to a method for displaying an input state on a touch pad in place of a virtual keyboard on a screen in a virtual keyboard input system using a touch pad. This is a method for minimizing the area occupied by the virtual keyboard on the screen of the mobile phone. As shown in FIG. 78D, an area having the same abscissa or vertical coordinates as the touchpad area where a finger touches is illuminated, even if the user does not see the virtual keyboard. This configuration allows you to check the keys of the virtual keyboard activated by your finger. When it is bright like day, check by checking the area with the same horizontal or vertical coordinates as the activation key.If you need to illuminate the touchpad at night, the whole area of the touchpad is illuminated and only the same horizontal coordinate as the activation key area. Or, the key of the activated virtual keyboard can be checked by disappearing the lighting of only the region having the vertical coordinate. Furthermore, an area having the same abscissa or ordinate as the activation keys of FIGS. 78D and 78E may be illuminated by different colors. The touch pad structure for this configuration is shown in detail in FIGS. 78B1 to 3. Figure 78b1 is a case using an elastic body, such as polyurethane foam sponge (Fig. 78b2) is a case having a dome-shaped elastomer structure using silicone rubber (Fig. 78b3 and 78b4 is a pure air layer instead of the elastic body only) This is the case. The difference between Fig. 78b3 and Fig. 78b4 is that a metal dome (7852m) is inserted into the air layer to increase the resilience of the finger-touching film. The metal dome may be replaced with a conical spring, and the metal dome is better than the conical spring. Is that when the user is pressed, the user can communicate the pressed state by transmitting a ticking feeling. Elastomeric support 7855 places elastomer 7785 over touchpad 7784 as shown in FIG. 70 and in cell phone body 7855-more precisely in light emitter 7568, such as an LED located on body 7855. It is preferable to use a transparent material so that the generated light is transmitted to the part 7785 where the finger touches. In the case of Fig. 78B1, an opaque sponge is used as the elastic body 7702, so the center hole is made to create a path of light. However, in Fig. 78B2, the light is directly illuminated by the opaque elastic body, so the hole in the center area is like a sponge. 78b3 and 78b4, the hand portion 7785 "is composed of a transparent or opaque film such as a polyethylene film or a polypropylene film, so that various parts of the hand portion 7785" can be made. Makes this possible. In this configuration, the touch pad attaching surface 7855 uses a transparent material and the finger contact portion 7785 is a semi-transparent material or some transparent area (to display information assigned to a key) in order to pursue light transmission and airtightness of a mobile phone. It is preferable to configure the non-transparent material having an advantage that when using the air layer as an elastic body there is an advantage that can further reduce the separation distance to distinguish the touch state and the pressed state than when using a sponge. For example, in FIG. 78B1, the signal of the touch pad capable of distinguishing the touch state from the pressed state even with a thickness of 0.5 mm in the case of FIGS. 78B3 and 78B4 using only a pure air layer under the same conditions as that of the sponge having an elastic thickness of 1 mm in FIG. 78B1. To generate. Since the dielectric constant of air is less than half of other materials, when using air as a dielectric in Equation (1), the change in capacitance due to the change in distance between two electrodes is more than doubled. The purpose of this configuration is that the touchpad input device can also be used in the light and dark areas of the finger contact of each key of the conventional keypad mobile phone. Unfolded perpendicular to the pad is shown in FIG. 78B. In addition to the illumination by the internal light emitting device, the external light emitters 7711 and 7872 may be arranged on the outside of the touch pad in the same manner as the virtual keyboard arrangement of the touch pad to confirm the position of the active key of the virtual keyboard. This method is illustrated in FIG. 78F and the color of the light source is always turned on to check the current position of the current virtual key (7862) or to turn on only the light emitting body corresponding to the virtual key to confirm the position. Can be.

Thirty-fourth configuration of the present invention is a configuration of a virtual keyboard musical instrument using a touch pad for distinguishing the touch state and the pressed state. FIG. 83 illustrates a keyboard musical instrument using a 5-row * 7-row key having the structure of FIG. 70 on a 4cm * 5.5cm touchpad. The input device using the keyboard and the virtual keyboard described above divides the touchpad into small sections so that the divided regions correspond to the keys of the virtual keyboard so that the information on the virtual keyboard is executed as the finger moves on the touchpad. The same is true in that. However, in the case of the keyboard instrument, the execution of the virtual keyboard is different from the character input device in that the sound is generated, and the virtual keyboard operation is also changed because of this difference. This configuration is intended to implement these differences. In this configuration, the virtual keyboard structure of the seven-row * five-row structure has a scale of more than three octaves from F3 to B6. The virtual keyboard arrangement of FIG. 83B is a structure for gripping and operating the touch pad with one hand, and the virtual keyboard arrangement shown in FIG. 83E has a horizontal arrangement and is operated by two hands, but one octave of notes is arranged in one line. It is designed to have a much easier recognition of the negative arrangement than the structure of the vertical arrangement. Fig. 83B shows this virtual keyboard and the specific arrangement of the notes, and the parts shown in gray are designated overlapping to ease the movement of the finger (Fig. 83B- (B)), or the notes are assigned to impart other functions. May not be (FIG. 83B- (A)). The notes corresponding to each key of these virtual keys are the notes corresponding to the white keys of the piano, and these notes are generated by pressing and holding the touch pad area corresponding to each key. However, in the generation of a sound corresponding to a black key, a semitone high or low sound is generated when the finger touches a touch pad area corresponding to a white key and leaves the touch pad area corresponding to a virtual key. 83c- (C)) For example, assuming that semitones are generated in all cases, D ♭ can be replaced with C #, so that the sound generated by the movement of a finger as shown in Fig. 83C- (C) is 83C- (A). ) Will be a semitone higher than that of the virtual keyboard selected. The sound generated by the movement of the finger as shown in FIGS. 83C- (C) may be a half tone lower than the sound of the virtual keyboard selected in FIG. 83C- (A). This can be specified by the user. If you implement semi-high and low notes in each virtual keyboard, move the finger movement shown in Fig. 83C- (C) up and down to semitone high. Is generated, and when moving downwards, a semitone low tone is generated. The former does not apply to the 'E' and 'B' and the latter to the keys 'C' and 'F'. This is because, in each of these cases, the sound is generated by the white keyboard already, so the generation of sound using the configuration of Fig. 83C- (C) is meaningless. In summary, the point where the finger touches the touch pad determines the sound that is generated. When the key corresponding to the C5 sound is touched, as shown in Fig. 83C- (A), the subsequent movement of the finger causes the finger to move from the touch pad. Until it is separated, the sound related to C5 is generated. If you press the C5 key as shown in Fig. 83C- (B), the sound of C5 is generated, and if you move the finger to the surrounding key, the sound of semitone difference is generated. Continue until spaced apart from. 83C-(C), the C5 # sound is generated. One of the advantages of this configuration is to generate the sound corresponding to the black keyboard by assigning the sound corresponding to the reference sound of each scale to the sound assigned to the key on the touch pad according to the change of the scale. The touch / slide method can be omitted, and the sound specified in the virtual keyboard shown in FIG. 83E can be generated without processing the reference sound of each scale in semitones when each key is pressed. For example, FIG. 83E- (B) shows a virtual key in A major, but in order to generate C5 # sound corresponding to 'A' of A major, the C5 digit in FIG. 83D- (A) may be pressed as it is. In other words, when looking at the scores of all scales, the keys corresponding to all the clefs are the same as the positions of the key in C major. In order to generate the original sound only for the note indicated by the down mark, the keyboard operation of the method shown in Fig. 83C- (C) may be performed. In order to apply this method to the existing piano keys, it is possible to have black keys at all positions. In the case of the piano keys shown in Fig. 83E (C), since there is no black key between the B and C keys, If a temporary insignia is attached to a note corresponding to #, there is no key corresponding to 5C, and thus the virtual key method of the present invention is impossible to apply. If there is no temporary indentation or semitone processing on the score, playing is possible even if there is no black key in the brown position of Fig. 83E (C), but if you insert a black key in the brown position of Fig. 83E (C), The perfect basic tone playing system of each set is possible with only the white keys according to the composition. Furthermore, even if the virtual keyboard according to this configuration uses a touch pad capable of multi-touch, it is impossible to accompaniment chords using multiple fingers in a narrow space of the touch pad. This is similar to FIG. 83C- (C) except that the chord is generated only when the finger is moved out of the position of the touch pad where the finger first touches and then reaches the adjacent virtual keyboard area. The reason for this is that in case of character input, if you delete old character on screen and input new character, it is the same as inputting new character. However, in case of musical instrument, the sound generated cannot be deleted. No sound should be generated, so no sound is produced in steps 83D- (B) and (D). This is the difference between FIG. 83C- (C) and FIG. 83D- (B). Referring to the example of FIG. 83D, if the chord expected in C5 is one C-Chord or two including Cm-Chord, there is no problem in the configuration as shown in FIG. 83C- (C). Because the finger moves up, down, left, and right after touching the touch pad area corresponding to 'C', it can occur by dividing at least four sounds, namely semitone high, semitone low, C-Chord, Cm-Chord, respectively. Because there is. However, if two or more chords such as C7-Chord are required in addition to C-chord and Cm-Chord, the push operation must be made outside the touch pad area of the first touched contact in Fig. 83e to expand these chords. Occurs, and the sound generated in this way becomes a sound specified at a position different from the position where the finger first touched. Furthermore, in the case of the configuration for semitone processing by the up and down movement of the fingers of FIGS. 83C- (C), a method of designating a tone may be implemented for the left and right movements. For example, the sound may be generated once by pressing the touch pad area as shown in 83c- (B) and 83d- (E) or out of the original area as shown in FIG. 83c- (C). If there is additional left and right movement of the finger at the point, the tone changes. In addition, when the change of the tone is changed according to the left and right movement distance, hybridization of various instruments becomes possible. The thirty-fourth configuration of the present invention is a configuration for a virtual keyboard using a touch pad having a pressing function, but it is possible to configure a virtual keyboard capable of semitone adjustment without a pressing function. In other words, this configuration is applied to a pointing device using a touch sensor without a pressing function, such as a touch screen, so that a wide range can be played. The configuration for generating a semitone high when the user moves upward while the finger is in contact with the touchpad and generating a semitone low when moving downward has already been described above. However, since there is no pressing function, a configuration using a method of generating a specified sound when the finger is spaced apart from the touch pad instead of the pressing state. For example, after the finger touches the '3F' area on the touch pad shown in FIG. 83E (A), movement of the left and right sides does not generate sound, thereby allowing the user to select a desired key while moving the finger to 3C to 4B. The advantage of this method is that if the finger selects the position of the octave correctly when selecting the key, the negative selection within the same octave can be modified even if the finger touches the touch sensor even if the position where the finger first touches is wrong. To provide a method. In case of touch pad with pressing function, even if the finger touches the neighboring key area instead of the key to select, it does not generate sound when it is separated from the first touch without touching or moving up and down. There is a way to select again, but it is not possible in a touch pad or a touch screen method without a pressing function, instead, it provides a way to select the left and right keys even after the finger touches the touch sensor. However, if a key selection is allowed by moving a finger left and right, a method of playing a chord by moving a finger left and right applied in a configuration for a touch pad having a pressing function becomes impossible in a touch pad without a pressing function. In addition, the method of showing the virtual keyboard on the screen may be shown as a chord as shown in FIG. 83E, or as shown in FIG. 83F, the key position is shown in each key region to easily identify the position of the key in the score and the virtual keyboard. It can be done. There are two ways to display the notes on the virtual keyboard in the constellation. The first is the semitone state regardless of the major set by the user in the same shape as C major as shown in FIG. 83G (A). It is possible to easily associate the position of the note on the score with the key position on the virtual keyboard by simply displaying the position of the note without showing the symbol and the clef corresponding to the A major in FIG. 83F (B). As described above, in the case of non-C major, the flat (b) and the sharp (#) drawn on each clef are written together in the position of the note according to the major. And even if the note is displayed on the virtual keyboard without semitones as in the case of Fig. 83F (A), the sound generated by each key is set according to the chord according to the major lines shown in Fig. 83E (B) as the user sets the major score of the score. It is decided. As shown in FIG. 83F, a method of displaying a musical note such as a sheet music on each key of the virtual keyboard has an advantage of enabling intuitive playing without training on a chord.

According to a fifth aspect of the present invention, a pointing mode is extended to a general pointing mode and a pan mode. In a general pointing mode, the movement of the pointer while the finger touches the touchpad is performed. In the fan mode, the movement of the finger not only controls the movement of the pointer but acts as if the pointer is holding the screen, so that the screen moves simultaneously with the movement of the pointer. Furthermore, the drag operation in the pan mode is in charge of a zoom function that brings the zoom of the screen to the user's convenience. An example of the switching and the actual application of the pointing mode / fan mode is described in FIG. 84 and the switching of the pointing mode / pan mode is performed by double tapping.

The thirty sixth configuration of the present invention is to enable the application of a touch pad having a single touch function to a touch pad having a multi-touch function. As shown in FIG. 49, in the case of the touchpad capable of distinguishing the touch state from the pressed state, when the capacitance change value corresponding to the touch state is regarded as '0', even if several fingers touch the touch pad, the touch pad reaches the pressed state. It is a method of calculating only the coordinates and displaying them on the screen. To this end, a method of processing the capacitance change maximum value in the touch state as a reference value is described with reference to FIG. 85. With this method, even when using a general single-touch touch pad as a text input device, use both hands to input numbers and letters using the same operation method as pressing a keypad cell phone (by pressing the area corresponding to each number and letter key). This ensures that users have no problem adapting to the input method using the touchpad. When the principle shown in FIG. 49 is applied to a touch pad having a multi-touch function, two hands can be used, and a gesture command using several fingers, which are well known, can be operated in parallel.

As shown in FIG. 86, the thirtieth seventh aspect of the present invention enables the touch pad input device to simultaneously perform not only a numeric key but also a directional key, and make it a slider so that it is positioned at the upper layer of the mobile phone screen. Structure. In addition, such a touch pad input device may be called a touch keypad because, unlike a conventional keypad, a user may input a simple touch without a pressing operation. On the contrary, unlike a simple touch pad, each area may be pressed by a key. Because it can. Furthermore, the touch keypad of the present invention can arrange 25 keys in a small space by a key area expansion function as shown in FIG. 68, and these keys can be assigned functions of numeric keys and mobile keys of a conventional keypad mobile phone. will be. Therefore, not only the case of the clamshell cell phone shown in FIG. 1 but also the slider cell phone can reduce the area of the keypad, thereby bringing the advantage of reducing the size of the cell phone, especially in the slider cell phone as shown in FIG. By arranging the keypad on the top of the mobile phone screen, the structure of the mobile phone can be further reduced. In the case of a typical slider-type keypad mobile phone, the screen and the direction movement keys are arranged on the upper body of the two-body body, and the numeric keys have a structure arranged on the other body to minimize the size of the mobile phone. This is because it is possible to minimize the size and convenience in using a mobile phone. If the numeric keys are arranged on the upper body like the screen, it is inconvenient to slide to use the lower body where the direction key and the call key are arranged in order to receive the incoming call. In the case of a slider-type mobile phone, as shown in FIG. 23C (C), the lower part of the mobile phone is held. If the structure shown in FIG. 86A may hold the mobile phone, it may cause difficulty in operating the actual keypad. Therefore, in order to overcome this problem, it is another configuration of the present invention to make the screen keypad slide on the arranged body by hollowing the body on which the touch keypad is arranged as shown in FIG. 86B.

In the thirty eighth configuration of the present invention, the pointing operation of the touch pad is performed based on the absolute coordinate system. In general, since the touchpad used in the notebook computer is smaller than the monitor, the absolute coordinate system may reduce the accuracy of the pointing operation. However, when the touchpad is the same size as the mobile phone screen, the relative coordinate system It does not matter if you do not perform the pointing operation. In the case of a mobile phone using an actual touch screen, since the touch sensor and the monitor have a 1: 1 correspondence, of course, when the absolute coordinate system is taken, the touch sensor of the touch screen is disposed in the same size on the monitor so that a user does not have to worry about the position of the finger. . However, in the case of the touch pad, the touch pad should be operated separately from the screen, and the size of the touch pad is not the same. Therefore, when using the absolute coordinate system, as shown in FIG. If it is necessary to match the parts 1: 1, this is the thirty-eighth configuration of the present invention. However, unlike the virtual keyboard, since the calibration for the entire screen is not performed, the calibration is performed only for the entire screen. Therefore, as shown in FIG. 87, the correspondence point for the upper left corner and the lower right corner are shown. The corresponding point on the touch pad is calibrated in a manner shown in FIG. 29 by placing a finger at a position on an approximate touch pad (using the upper left key area and the lower right key area corresponding to the virtual keyboard as reference points). .

1 is an example of a mobile phone (FIG. 1B) equipped with a touch pad 104 that replaces a conventional mobile phone (FIG. 1A) and a keypad, 101 is a power switch, 102 (GUI / Phone mode conversion button), and 103 (right of a mouse) Buttons), 105 (character input mode switch button) and 106 (mouse left button) indicate function buttons.The buttons used to execute the two-button mouse and menu expansion buttons and other mobile phones are commonly used for computers. The number of buttons need not be limited to four as shown in FIG. 1B.

FIG. 2 illustrates a case in which the mobile phone having the pointing device of FIG. 1B is gripped and operated with one hand (FIG. 2A) and with two hands (FIG. 2B). The number is entered by placing the pointer on the number 4 of the virtual keypad 201 on the screen and pressing the play button 203.

3 illustrates a process for inputting '47' when the mobile phone having the pointing device as the input device of FIG. 1 (b) is operated with one hand. 3A illustrates a state where a pointer is positioned at the number '4' of the virtual keypad 301 on the screen, and FIG. 3B illustrates a situation in which 4 is input on the screen by pressing the execution button 303. FIG. 3C shows the process of moving the thumb down on the touchpad 302 to move the pointer over the number '7' on the screen to enter an additional '7' while already entering '4'. FIG. 3D Shows that the thumb moves from the touchpad to the play button and presses to execute a command to enter a '7'.

4 is a mobile phone having a keypad during operation of the mobile phone when the touch pad shown in FIG. 1B has a function of a function button (execution button) and operates according to the same operation principle as the mobile phone of the existing button arrangement. , 4d) and finger movements are the same. That is, when the pointing device is pressed, it has a function of an execution button. The process of inputting 47 is no longer necessary to press the function button made in FIGS. 3B and 3D as shown in FIG. Likewise, the user moves the finger on the touch pad to select '4' on the screen, followed by a pressing operation at the same position, thereby inputting '4', which has the same process as the input of the existing mobile phone shown in FIG. 4C. Similarly, in the case of inputting '7', the movement of the finger and the pressing operation for selecting '7' (FIG. 4B) are the same as those of the conventional mobile phone (FIG. 4D).

Figure 5 shows an example of a touch pad in charge of the function of the function button as a schematic structure. 501 denotes a touch pad body, and 502 denotes a button switch. FIG. 5A illustrates a state before the touch pad body is pressed, and FIG. 5B illustrates a state when the touch pad body is pressed. 5C and 5D show a button switch located next to the touch pad main body so that the switch is operated in a lateral direction when the pointing device is pressed.

FIG. 6 shows a touch pad bundle having a function of a function button and a shape when the touch pad bundle is pressed to operate a button function (FIG. 6B). In the case of the general touch pad, the touch pad is operated by tapping the touch pad once with a finger. In this case, when the finger is released from the touch pad, the pointer moves and the command to be executed cannot be fulfilled. Errors may occur and furthermore, these additional finger movements will require more energy and time than conventional keypad-type cell phones, reducing the efficiency of number entry.

7 shows the dome switch 703 applied to the bottom side of the touch pad 701. An insulating film 702 is covered to protect the electrodes and other electronic devices and the electric circuit arranged at the portion where the dome switch touches the bottom of the touch pad. The elastic spacer 705 surrounds the touch pad to enable vertical movement of the touch pad, and at the same time, even if the touch pad is pressed by a finger, a gap does not occur in a portion where the touch pad touches the mobile phone. The bottom surface 704 locks the dome switch when the touchpad is pressed to enable the on / off function. FIG. 7A shows the state when it is not pressed and FIG. 7B shows that the finger presses the touchpad and the dome switch remains on. The position of the dome switch in the figure can be arranged not only at the edge of the touch pad but also at the center, and only the number and position of the dome switch can be determined so that the user does not apply excessive force when operating the touch pad.

FIG. 8 shows two types of Querty Phones. FIG. 8a is a model LG9200 Qwerty Phone produced and sold by LG. The keyboard is provided in a slide form, and FIG. 8b is a Blackberry 8700 model.

9 illustrates a mobile phone using two touch pads 906L and 906R provided by the present invention. The two touch pads operate in conjunction with two cursors in the character input method, and each cursor is divided into half of the virtual keyboard to cover left and right areas. In addition, there are four function buttons 902 to 905, which perform different functions when the mobile phone is used, and the arrangement of these function buttons allows the user to fully perform the functions of the pointing device with both hands or with one hand. In addition, a keyboard 9a of a general keyboard may be used as it is or a shortcut keyboard 9b having three keyboard rows may be used for convenience of character input.

FIG. 10 shows an example of a mobile phone having a touch pad according to the present invention (FIGS. 10A and 10B), and FIG. 10C is a SPH-B3100 model of Samsung Electronics which is currently double hinged to enable horizontal and vertical views of the screen. It is a model using. Representative mobile phone models capable of such a landscape and portrait view are shown in Figure 10f (SonyErrison Bravaio Phone W44S) ~ Figure 10i (Motorola MPX). Similarly, the arrangement of the pointing device of the present invention can be applied to both the case where the landscape view is advantageous, such as the e-mail or the multimedia player function, and the case of the portrait view for the phone function only, and the QWERTY phone having the function of the keyboard input device as shown in FIG. 9. In view of the structure of the conventional QWERTY phone shown in Figure 8 can be seen in that not only the built-in keyboard in a small space but also can provide a graphical user interface (GUI).

11 is a view of using the mobile phone provided in the vertical view of the present invention can be used with one hand to enable a simple dialing by phone function and further provides a bar-type structure that enables the handset function.

12 is a view of the mobile phone provided by the present invention when using the landscape view, in which case both hands can be used to enable smooth operation of the character input and GUI system.

FIG. 13 shows that a telephone call can be made identical to a conventional mobile phone by using a GUI system in a portrait view mode. FIG. 13A is an initial screen displayed when the mobile phone is turned on, and the pointer (cursor) is positioned on the telephone call program icon, and then double-clicked (double-tap of the touch pad) to open the virtual keypad shown in FIG. 13B, and then 011-813- To dial 9715, move the cursor to the number you want from '0' to '5' (Fig. 13c) and press it in turn (press the touch pad) to enter the number on the screen. Likewise, move the cursor to the 'call' button on the virtual keypad (press the touch pad) to make a call, and press the 'end' button to end the phone call. Unlike the existing mobile phone, you do not need to delete the wrong number even if you enter the wrong number, just select the wrong number and press the 'Cancel' button to delete and then enter a new number. This input method is the same as the method of modifying a character using a mouse in a computer. It is an advantage of the mobile phone provided by the present invention that the implementation of a function of the existing mobile phone is also possible through a program. Therefore, even if you are familiar with the call method using the keypad of the existing mobile phone provides an interface that can be used as it is. For example, even if only the last number 9715 is entered, the corresponding telephone number (011-813-9715) appears on the screen and the call button is pressed. In addition, if you press and hold '1' for a long time like the shortcut function of the existing mobile phone (if you press and hold the touch pad for a long time), you can connect to the phone number already entered. To return to the initial screen GUI system, call the hidden menu, move the cursor to the 'main screen' menu, and press the button (touch pad) (Fig. 13e).

Fig. 14 shows that an e-mail program is used as in the GUI system of an existing computer in a landscape view mode in a mobile phone having a pointing device provided by the present invention. 14A shows the main screen when the mobile phone is turned on. If the pointer (cursor) is placed on the email program icon and then double-clicked (the touch pad is pressed twice quickly), the email program as shown in FIG. 14B is opened and the pointer is again displayed. Is placed in the transmission letter box and the selection function button 904L is double-clicked to display the transmission letter list as shown in FIG. In the same way, if one of the e-mail lists is selected and double-clicked, the e-mail contents are opened and a new entry or modification can be made as shown in FIG. 14D. At this time, in order to operate the character input mode, the pointer is positioned at the position where the character is to be input, and then the selection function button 904L is pressed to display the character input position cursor. In this case, when the text / GUI mode switching button 901L is pressed, a virtual keyboard appears at the bottom of the screen, and a portion to input a character is located directly above the virtual keyboard, thereby enabling input (FIG. 14E). After the character input is completed, as shown in FIG. 14F, when the title is input and the text / GUI mode switch button (901L) is pressed, the user can select the position to be input again. Double click to display the input position cursor (Fig. 14f) and press the Text / GUI mode switch button (901L) to create a virtual keyboard environment (Fig. 14g). 14H, the text / GUI mode switch button 901L is pressed to switch to the UI mode, and the process proceeds to the next step. For example, you can move the pointer to a file on the menu and press the Select button to expand the down menu and execute 'Save', 'Send' or 'Exit'. If you execute 'Exit', you will be returned to the main screen (Figure 14a).

FIG. 15 illustrates a virtual keyboard. FIG. 15A shows a virtual keyboard displayed on the screen when the text input mode is started. The left and right pointers are located at 'f' and 'j'. At this time, two pointers (cursors) appear on the left and right sides of the virtual keyboard, and each pointer does not cross the center line of the keyboard and operates only in the left region 1501 and the right region 1502 of the keyboard. It is designed to double the efficiency of text input by the left thumb and the right thumb in the same way as the keyboard. In other words, the two pointers do not intersect with each other, and no matter how the touchpad is operated, the pointers are fixed to the left and right sides so that the movement of two fingers (thumbs) is more free and the character input is the same as that of the QWERTY keyboard. It brings efficiency. And the function of the 'Enter', 'Korean / English conversion' and 'Cap (capital letters of English)' frequently used in the character input mode as shown in FIG. Easily manipulated to increase the efficiency of text input. In fact, if you press the 'Cap' function button, the key of the virtual keyboard is changed to the uppercase mode (Fig. 15b).

16 is a process of inputting from "... I am fine." To "... I am" in the character input process, followed by a space, and then entering 'fine'. Figure 16a is input until '... am' and Figure 16b is to enter the space by pressing the right thumb to move the lower right corner of the touch pad to enter the space to enter the space function. To do this, place the cursor on 'f' and 'i' and press the left and right touch pads in sequence (Fig. 16c). The method can be used in the bottom right corner of the virtual keyboard and the method of inputting by simply moving a finger left and right without pressing the touch pad, which is described in FIG. 36.

FIG. 17 shows that a mobile phone having two touch pads and a plurality of function buttons provided by the present invention can be easily operated on a GUI system such as a mouse. FIG. 17A illustrates a method of selecting a document using a right touch pad and a left command execution button (a function button located below the left touch pad) during the process of deleting a document in the trash. FIG. 17B shows a right touch while pressing a command execution button. The process of moving a document to the trash using the pad. In the case of one pointer and two pointing devices, since the pointing devices operate independently, there is an advantage that the left and right handed users can use the hand as easily as possible, thereby ensuring the convenience of operation such as a mouse. As shown in FIG. 17, the right touch pad may be used for the right handed and the left touch pad may be used for the left handed. The left and right function buttons 904L and 904R can be used interchangeably as in the mouse, and the operation of FIG. 17B showing the right handed operation is also applied to the left handed.

FIG. 18 illustrates a mobile phone having a double sliding structure in which two touch pads are both capable of a landscape view 18c and a portrait view 18b. Comparing the mobile phone of this structure with the mobile phone shown in FIG. 8A, the mobile phone provided in the present invention provides a space that can expand the screen as much as the keypad length of the body of the mobile phone of FIG. If the size of the screen is the same, the size of the mobile phone can be as small as the keypad length of the body of the mobile phone of Figure 8a. Therefore, it is much more efficient in space than a QWERTY phone using a conventional keypad and more various functions are possible in terms of GUI implementation.

FIG. 19 lists electronic dictionaries having two touch pads (FIGS. 19B and 19C) and electronic dictionaries having conventional keypad input devices (FIG. 19A). In the case of an electronic dictionary having a touch pad provided by the present invention, a GUI system is provided. Because it operates on a basic basis, each built-in dictionary can be used in the same way as an application on a computer. When holding and using an electronic dictionary with both hands, use it as shown in FIG. 12A. 2B, the touch pad may be used with only one hand. The electronic dictionary provided by the present invention allows the use of multiple dictionaries at the same time, as shown in FIG. 19C, whereas the conventional electronic dictionary shows a single window by stepping down the menu. In other words, if you click the radio button at the bottom of the screen that says "Work ...", you will be able to use the Japan-Korean dictionary in the same way as the English-Korean dictionary shown on the screen. 19d and 19e show a case where only one touch pad is used, which is often used on the floor than when the electronic dictionary is used with both hands. In this case, a user interface using a single touch pad is used. If you use the virtual keyboard by applying), you will have the convenience of using the mouse function in terms of use rather than the electronic dictionary with the existing simple keyboard. The UI applied thereto is described in FIG. 28.

20A illustrates a structure for making text input using a virtual keyboard easier by making two or more reference points on a touch pad and associating these reference points with two or more keys of a virtual keyboard. There are four reference points (2001-L1, L2, L3, L4, R1, R2, R3, and R4) on the left and right touch pads, respectively.These reference points are s, e, f, c and j, i, l, m on the virtual keyboard. In this case, the characters inputted from the relative position from the reference point felt by the finger can be known without looking at the screen. For example, when the virtual keyboard starts, the pointer is automatically positioned at f and j of the virtual keyboard, and the finger on the touchpad is placed at the reference points 2001-L1 and R1 as shown in FIG. 20B and starts to move the pointer. In this case, the finger on the left touchpad moves from 2001-L1 to L3, and the pointer moves from 'j' to 's' on the screen. If you press the touch pad in that state, 's' will be input. In other words, perception of relative position using the reference point makes it possible to determine the direction in which direction the finger should be moved as in the case of using the keyboard even when using the touchpad. It is not necessary. As a result, even in the input method using the pointer, absolute position such as a keyboard can be set, and the virtual keyboard has the same convenience as the actual keyboard. The only difference is that the actual keyboard uses all five fingers while the virtual keyboard using the touchpad uses only one finger. 20B and 20C show the position of the hand on the reference point on the touch pad and the position of the key corresponding to the reference point on the virtual keyboard.

21 is a structure that makes it easier to determine the position of the keyboard by arranging the projection of the pattern having the shape of the puzzle in the vertical rather than the small projection of the reference point on which the finger is placed on the touch pad. The advantage of the shape of the horizontal and vertical pattern serves to guide the movement of the finger on the touchpad can be a linear movement to facilitate the location of the keyboard as well as the location. The square areas 2101 and 2102 shown in dark colors correspond to the positions of the keyboard 'a' and 'm' of the virtual keyboard, respectively. The irregularities of the rectangular protrusions are shown in the cross-sectional view of FIG. 21B. Since the touchpad is lower than 5mm lower than the attention, the edge edge portion plays a role of guiding the finger, and the protrusions 2101 and 2102 protrude within 1mm so that the position can be recognized in a range that does not interfere with the finger movement. To make it possible. However, in order not to affect the change in the capacitance of the touch pad, it is preferable to form protrusions 2101 and 2102 of about 0.5 mm or less, and more preferably about 0.1 mm. Therefore, it is ideal to reduce the height difference between the touchpad as much as possible, and even if the difference is within 1 mm, it can play a role of guiding the finger that the present invention pursues.

22 shows the arrangement of the function buttons accompanying the touch pad and the cross-sectional structure of the touch pad 2400L and 2400R. The structure shown in FIG. 22A is a function button and a dome switch 2205 is applied to the bottom of the touch pad (dome switch-2201, 2202, 2203) and the touch pad. By tapping 1, (S) 2, (S) 3, (S) 4, (S) 5, and (S) 6), the touch pad's capacitance changes, causing the switch function to work. This tapping operation is touched because the area around the touchpad is blocked by the device case ((S) 1, (S) 2, (S) 3, (S) 4, (S) 5, (S) 6). The pad regions 2208L and 2208R do not cause the dome switch to operate through the vertical movement. In particular, the shape and difference of FIG. 21 provides uneven shapes 2207L and 2207R so that a finger can easily grasp the position of the touch pad. That is, there is only a bend in the x direction and there is no bend in the y direction, so that the x position can be easily detected, and the y direction position sense is used by the edges 2208L and 2208R.

FIG. 23 is a structure in which the dome switch is not applied under the touch pads 2301L and 2301R in the structure of FIG. 22B, and the switches 2303L and 2030L are located on both sides of the lower part on the rear surface 23b- (B) of the telephone. ', 2303R, 2303R'). These switches are composed of 'L' shaped levers and dome switches 2304L and 2304R, which are operated by applying force at either the bottom, the edge, or the rear side, and the shape of the hand actually operating the same is shown in FIG. 23C. In some cases, the switches 2303L 'and 2303R' at the top of the back of the phone may be omitted, or the functions of these switches may be disabled by software so that only the lower switch is activated. 23B- (A) shows the position of the finger in the landscape mode (character input mode) and 23b- (B) in the right mode in the portrait mode (cell phone mode). The position of these fingers allows the operation of the switches 2303L and 2303R while the thumb moves freely, thus providing the same ease of switch operation as the case where the switch is placed on the bottom of the touchpad. Furthermore, as illustrated in FIG. 33, a method of using a capacitance change generated when a touch pad is pressed with a finger is also possible, which can be used together with these switches. Furthermore, these switches are used to simplify the structure of a mobile phone. 2303L and 2303R may be omitted, and the switch function may be operated using only the capacitance change of the touch pad.

24 illustrates a method of inputting text using two touch pads in the present invention. 24A and 24B show the coordinate system of the touch pad and the coordinate system of the virtual keyboard, respectively, which are the basis of the operation principle of the touch pad which will be described with reference to FIG. 24C. Since touch pad coordinates are separated from left and right and operate independently, the coordinates are divided into L and R, respectively, whereas the virtual keyboard coordinate system is not separated from left and right, so the x-axis range is displayed from -x ₅ to + x ₅ . It is. The characteristics of the virtual keyboard coordinate system are Δ x ₁ = Δx ₂ = Δx ₃ = Δx ₄ = Δx ₅ and Δy ₁ = Δy ₂ = Δy ₃ . Similarly, the coordinate system of the touch pad is also ΔX ₁ = ΔX ₂ = ΔX ₃ = ΔX ₄ = ΔX ₅ and ΔY ₁ = ΔY ₂ = ΔY ₃ . The operation principle of the left and right touch pads devised in the present invention is different from the operation principle of the conventional touch pad. In other words, determining the movement of a cursor in a general UI (UI) user interface (UI) is a movement distance in the x and y directions of the cursor from a signal (ΔX, ΔY-finger's diplacement) generated from a touch pad or a mouse that is a pointer input device. While the data corresponding to (Δx, Δy-cursor's displacement) is selected to select a new position of the cursor, the cursor operation in the character input mode of the present invention is determined by the absolute coordinates of the touch pad. One point of the pad corresponds to one point of the virtual keyboard. In other words, the coordinates (x, y) of the cursor are calculated from signals (X, Y-finger position coordinates) generated from the touch pad, which is a pointer input device, and the cursor is positioned at a position corresponding to the coordinates. When entering characters, two cursors are defined independently of each other (for the left cursor, -x ₅ ≤ x ≤ x ₅ , y ₀ ≤ y ≤ y ₃ ; -X ₅ ≤ x ≤ x ₅ , y ₀ ≤ y ≤ y _{3 for the} right cursor ) Is selected by the coordinates (x, y) of the cursor corresponding to the position coordinates (X, Y) of the finger, and the coordinate calculation formula (X-> x, Y-> y) of this method is shown in Figure 24c. Is shown in. For example, in the text input mode, when the right thumb moves to 'y' while the letter 'p' of the right touch pad of FIG. 24a is displayed, and the finger moves to 'y' away from 'p'. There is no difference. This is a difference between the operation principle of the general touch pad and the principle of using the touch pad in the text input mode of the present invention. In general UI mode other than text input, the distances (△ X, △ Y) of the finger on the touchpad are converted to the distances (△ x, △ y) of the cursor and applied according to the user's convenience. The ratio of the moving distance Δx of the cursor corresponding to the moving distance ΔX may be arbitrarily adjusted. This principle of cursor operation is shown in FIG. 24C. Therefore, when controlling the cursor on the screen by using the two touch pads of the present invention, the moving distance signal method and the absolute coordinate signal method generally used are mixed.

25 illustrates a case where the correspondence between the coordinate system of the touch pad and the cursor coordinate system is nonlinear. This is because the movement of the finger that operates the touch pad is circularly moved by the joints, so that the linear movement is not easy, and thus the up and down movement is necessarily accompanied when the finger moves from left to right or right to left. In particular, as shown in 'A' of FIG. 25C, when the finger moves in the center of the touch pad, the finger moves based on the edge edge of the touch pad in the areas ΔY ₁ and ΔY ₃ , while the width of the vertical movement is small while △ In the Y ₂ region, the vertical movement width becomes relatively high, so that the region ΔY ₁ or ΔY ₃ (part corresponding to 'i') may be selected. To compensate for this, by increasing the area ΔY ₂ (in case of 'B' of FIG. 25C), Δy ₂ in the actual virtual keyboard even with the same finger movement. △ y ₂ Allows easy selection and entry of a, s, d, f, g, h, k, l,? When the heights (△ y ₁ , △ y ₂ , △ y ₃ ) of the columns on the virtual keyboard screen are the same, the upper and lower widths of the upper, middle, and lower regions of the touchpad corresponding to each column are different (△ Y _1). = DELTA Y ₃ <DELTA Y ₂ ), and a relational expression in which the movement of the cursor and the movement of the finger on the touch pad are shown schematically in FIG. 25B. Y-> y transformation is not linear and △ Y ₁ (= △ Y ₃ )-> △ y _{1 in the} areas △ Y ₁ (Y ₀ ≤ Y ≤ Y ₁ ) and △ Y ₃ (Y ₂ ≤ Y ≤ Y ₃ ) _{(= △ y 2 = △ y} 3) and in the corresponding _{△ Y 2 (Y 1 ≤ Y} ≤ Y 2) region △ Y ₂ -> △ correspond to y _2. The advantage of using this correspondence is shown in FIG. 25C. That is, even if the finger movements are the same, each column has the same width (△ Y ₁ = (Δ) with △ Y ₂ = △ Y ₃ ), the cursor will have a path of 'a'->'i'->'?' Will pass through the same column with the same path 'a'->'k'->'?' Substantially there is room in the movement of the finger, even if the movement is increased up and down by the joint motion of the finger has the advantage that the movement of the cursor is made in the same row.

FIG. 26 illustrates the principle of operating the phone mode in the portrait mode of the touch pad having the structure shown in FIG. FIG. 26A is a view of a hand holding a telephone in a vertical position, and FIG. 26B shows a state in which a phone input mode has already been converted. Comparing FIG. 26 with FIG. 13, FIG. 13A is operated in a UI (User Interface) mode, which is a whole area mode in a portrait mode, and FIG. 13B is converted to a telephone mode. Initially in the telephone mode, the system starts in global mode. However, when a finger touches the global touch pad 2603 as shown in (A) and (C) of FIG. 26B, the global cursor 2602 is displayed on the screen. The character input mode is displayed when the finger touches the character input touch pad 2606 and the cursor is changed to the character input cursor 2605. The operating area of these cursors is the total area 2601 and the keypad area 2604 as shown in Fig. 26C. FIG. 26B shows that the inactive cursor is omitted to show the active state, and in the case of the global cursor, the global cursor is moved to '5' as in 26c- (B) showing the character input cursor at the position indicated in 26c- (A). Select and press will also work. That is, the global cursor can also enter characters. However, the touch pad for operating the global cursor is different from the touch pad for controlling a text input cursor in that a signal corresponding to the coordinate change amounts Δx and Δy is provided. Therefore, in the telephone mode of the mobile phone of the present invention, although there are substantially two cursors, only a single cursor is displayed on the screen or both, but a semi-dual cursor system may be applied to distinguish between active and inactive. And each cursor has a different operating area than the touchpad that moves it, but essentially the function of each pointer is the same. How to adjust the brightness or the color difference according to the active state on the screen or make the inactive cursor disappear from the screen is just to prevent user confusion and use two cursors at the same time. The above is the case of having two touch pads and actually only one touch pad in the portrait mode (FIGS. 1B and 23C-(C)) shows a button having a function of switching between the global mode and the text input mode. By using the same touch pad, the two modes (Figs. 26B- (A) and (C)) can be used interchangeably.

FIG. 27 shows a flowchart (FIG. 27B) of the coordinate system of the touch pad (FIG. 27A) and the accompanying cursor coordinate calculation method when the touch pad shown in FIG. 25 is used in the portrait mode. The movement of the cursor is shown in Fig. 27C. Unlike the horizontal mode, in the vertical mode, it is more a problem to shift the left and right when moving up and down than the left and right movement of the finger, so that the ΔX ₂ area is larger than the ΔX ₁ and ΔX ₃ areas to correct this. In this case, even if there is a left and right movement in the middle of moving the finger, the actual cursor movement is limited to the area of Δx ₂ , so that stable input is possible.

FIG. 28 schematically illustrates a process of displaying a cursor on a screen by using signals from two touch pads in the present invention. Each touchpad generates (X, Y) coordinate data and provides it to the data processing device. The data processing device controls the global cursor and the text input cursor on the screen so that the coordinate change of the general cursor in the global mode (△ x, Δy) are calculated to move the cursor, and in the character input mode, the screen coordinates (x, y) of the cursor are calculated to move the character input cursor. However, in the character input mode of horizontal mode, two cursor coordinates, (x ₁ , y ₁ ), (x ₂ , y ₂ ) are calculated to move the two character input cursors. Only one input cursor will be displayed. In addition, the content in the rectangle indicated by the dotted line on the right shows a method of implementing a user interface (UI) when there is only one touch pad, and is a UI implementation method for a single touch pad system applied to the case of a mobile phone shown in FIG. 1B. Similarly, as shown in FIG. 19D, even in an electronic dictionary that needs to be operated on the floor, text input is performed using a virtual keyboard to which a UI system of a single touch pad is applied. In this case, however, the vertical mode on the global mode is set as the horizontal mode unlike the mobile phone in the UI structure illustrated by the dotted line in FIG. 28. In the case of a mobile phone or an electronic dictionary, the virtual keyboard character input method using the absolute coordinate system of the touch pad of the present invention shows that the touch pad can play the role of an existing keyboard and a mouse at the same time. It will open the way for small spaces on the same portable electronics.

FIG. 29 schematically illustrates a method for correcting that the center of the area where the finger contacts the touch pad does not coincide with the reference point when the finger is placed on the reference point of the touch pad. As shown in FIG. 29A, even if a finger (thumb) is placed at a point P _k corresponding to the keyboard 'k', the touch point P _{k and cal} calculated by the touch pad are (X ', Y') as actual reference points P _k. It is different from the coordinates of (X, Y). This is shown in detail in FIG. 29B. Therefore, when the coordinates of the cursor are calculated by the method according to FIG. 24C using the touchpad coordinate system shown in FIG. 24A, the cursors are actually overlapped with 'i''o''k''ℓ' as shown in FIG. 29C. It will be located in. Therefore _, in order to correct P _{k and cal} to the center position of 'k' _, the new coordinate system is moved by moving the touch pad coordinate system by the difference between the actual P _k and P _{k and cal} (ΔX _k , ΔY _k ) shown in FIG. 29B. If you set (X'-Y '), P _{k and cal} are located at the center of the area representing' k '. Methods of calculating the coordinates of the cursor in the horizontal mode and the vertical mode (telephone mode) using the new touchpad coordinate system X'-Y 'thus set are shown in FIGS. 29D and 29E, respectively.

30 illustrates a pressure change by a finger when the touch pad has a function other than a pointing function. The principle that the touch pad calculates the change in pressure is that when the finger presses the touch pad, the area where the finger touches the touch pad increases, resulting in a change in capacitance, which causes the change in pressure to be calculated from the change in capacitance. do. Therefore, for the pointing function, when the finger moves on the touchpad, it usually produces a small pressure change as shown in FIG. 30A. However, unlike the pointing operation, when pressure is applied, the pressure is higher than Z _{t , max} (pressure at touch) as shown in FIG. 30B. Increased Z _{p, max} (pressure at pressing). When the pressure applied by the finger to the actual touch pad is greater than the pressing reference pressure (Z ^o _pr ) by using the difference in pressure, the switch device for the pressing function shown in FIGS. 5 and 7 is provided. You do not need to install it. Here, the reference pressure is the pressure set by the user arbitrarily between the minimum pressure (Z _{p , min} ) and the touch pressure generated when the user presses the touch pad. The purpose of this setting is to ensure that even the smallest pressure (Z _{p, min} ) that appears when the touchpad is pressed can always activate the switch function. In addition, there is another set constant _, Z _{pr (th} -threshold pressure of pressing), which is the starting pressure at which the switch is operated when the switch pressure is to be activated. This is also used to correct the character input error described in FIG. 32, and the detailed description is made in FIG. Further, as shown in FIG. 30C, when the touch area (part shown in gray) durations Δt _{tap , 1} , Δt _{tap , 2} − are continuously connected, another switch function may be provided. This is a method of using a function button by tapping a touch pad that is already used as a pointing device. However, Z _tap may be larger or smaller than Z _{p , max} , Z _{p ,} or _max , but this is not a problem and the important thing is the size and change of short time that can be distinguished from the case of accidentally touching and dropping the touchpad. That is, the switch function is given by setting the ranges of Δt _{tap , 1} , Δt _{off, 1} , Δt _{tap , 2} . The use of the tapping function using the temporal change of capacitance is performed by removing the function buttons 2201, 2202, and 2203 of FIG. 22A to perform functions of these function buttons only with the touch pad as shown in FIG. 22B. Therefore, what is necessary is just to provide a different function to the area | region of (S) 1-(S) 6 of FIG. 22B.

FIG. 31 illustrates a region of a tappable touch pad 3101 that replaces the function button described with reference to FIG. 30. In fact, as described with reference to FIG. 30, the tapping and pressing functions are divided by the short time of the touch, but the pressing area 3102 and the tapping area (areas except for the pressing area in the area of the touch pad: (S) 1 to (S) 6) Fig. 31- (A) shows a clearer distinction between these two parts, and the right touchpad of Fig. 31- (B) removes these areas and removes the area corresponding to each letter key in the text input mode. It shows an increase. Even if the area of the character key is increased in this way, the tapping areas (S) '2, (S)' 4, and (S) '6 can be kept as they are.

32 is a view illustrating a process of generating an error caused by imparting a button function using a change in a pressing pressure of a touch pad. For example, in order to enter the letter 'k', a finger is placed in the 'k' area of the touch pad and then pressed. In order to explain this, the position of the touch pad is divided into X1.5 to X3.5 (FIG. 32A), and the process of pressing the touch pad at the position of 'k' while the finger moves from the 'j' area to the 'ℓ' area. . In this process, the pressure change is shown in FIG. 32B. The most ideal pressure change is FIG. 32B- (A), but in practice, it is possible from FIG. 32B- (B) to (D). The problem is the case shown in Figure 32b- (D), where the pressure is applied when the finger is in the letter 'k' area, but the maximum pressure is when the finger reaches the 'l' area and the user enters it. An error occurs that the desired character is different from the actual input character. The concept introduced in the present invention to correct this is the pressure threshold (Z _{pr, th} : pressure of threshold). This user has a variable pressure that can be set in accordance with the habit of pushing the touchpad based on pressing pressure is assuming a value between (Z ^o _pr pressure of pressing) and Z _tch (pressure of touch). FIG. 32B shows four cases that can occur during the pressing process, in which the change in pressure is shown along the X-axis, and FIG. 32B- (A) shows the most ideal input process in detail in FIG. 32C. It is shown by the change of the pressure according to X coordinate (A) and time (B). As shown in FIG. 32c- (A) Applying pressure on the finger comes in contact with the touchpad state can not see one of the pressure change appear more as a peak only at X2.5 when displayed for this time to time t (X _{2 .5 -)} reached the maximum pressure in the t (X _pr) in the press is started is reached again with t (X _{2 .5+)} touch pressure (Z _tch) to normal. That is, a time point corresponding to the threshold pressure exists before and after the maximum pressure. In the present invention, the error that may occur in the input process is corrected using the present invention. The ideal press process in the threshold pressure (Z _{pr, th),} the two points X _{pr, th} to the _- (X _pr threshold pressure point immediately before) and X _{pr, th +} (the threshold pressure point in the X _pr immediately after) all the characters' stay in the region k '(X ₂ <X <X ₃ ). However, also in the pressing process for the _{32a- (C) X pr, th} - X is the X _{pr, th +} in the area of the character 'k' are staying in the area of the character 'ℓ' determines the running Also input _pr Also stays within the area of the letter 'ℓ'. Accordingly, the pressing process corresponding to FIGS. 32b- (c) and 32b- (d) is a pressing process for generating an error of inputting 'l' instead of the letter 'k'. How to prevent the occurrence of these errors it is not that the characters actually entered for the X _pr X _{pr, th -} that is if you type the letter corresponding to.

FIG. 33 is a flowchart for correcting an error that may occur when applying a switch function using a pressure change of the touch pad described with reference to FIG. 32. When the character input mode is started, the data processing apparatus shown in FIG. 28 continuously stores and updates the coordinates corresponding to the threshold pressure according to the change of the pressure as well as the calculation of the cursor coordinates so that the threshold pressure Z immediately before the pressing pressure Z _{pr pr, th-:} a schematic view in P ^-1) and compared to a pressing pressure corresponding to these characters - V (Z _pr) - If the input character is actually not the same, V (Z _{pr, th -} the running by) It is a schematic diagram.

FIG. 34 schematically illustrates a method of using an elastic body with an insulating film 3402 in contact with a finger on the touch pad 3401 in order to maximize the difference between the touch pressure and the pressing pressure. The general touch pad has no difference in thickness when the insulator is made of inelastic material (3402U) and when it is touched and pressed, so the pressure change calculated by the touch pad is merely a change in the area where the finger 3403 touches the touch pad. ΔA = A _p -A _t ), while the insulator 3402 on the touch pad of the present invention is an elastic body, and when pressed, not only changes in area but also changes in thickness (Δd1), resulting in a pressing pressure. And the difference between the touch pressure is much larger and accordingly the sensitivity is increased so that it is possible to press the input without applying a large force, as shown in Figure 33 it is possible to prevent the error of moving the finger to apply a large force. In addition, the uneven structure of the insulator 3402 film disposed on the touch pad shown in FIGS. 21 and 22 may cause a change in capacitance of the touch pad. In this case, the position of the touch pressure, the pressing pressure, and the threshold pressure may be reduced. As a method for correcting the change, a partition type insulator shown in FIG. 34A may be used.

FIG. 35 illustrates that a space and a back space, which are most used in the text input mode, may be input by selecting a space on a virtual keyboard using a switch function, but a finger may be parallel to the touch pad on the touch pad. It just shows how to make the input work by simply moving left and right. That is, it is common for a finger to move from side to side for character input, but as shown in FIG. 35A, a quick round trip from left to right or right to left of the touch pad is intentionally moved to perform a special character or function as in the present invention. If not, it does not happen for actual character input. Therefore, the thumb that operates the left touchpad is mainly on the right side, so the right->left-> right movement is convenient, and the thumb that operates the right touchpad is biased on the left side, so the left->right-> left movement is convenient. If you give back motion and space function to each movement, character input will be easier. For this operation, the data processing apparatus of FIG. 28 stores the time at a point passing by the reference coordinates X ₁ , X ₂ , X ₃ , X ₄ , X ₅ of the finger so that the trajectories they draw are shown in FIGS. 35C and 35D. If this applies to space or backspace will be executed. However, it is possible to draw a trajectory corresponding to ①, ②, ③ for the actual character input, but in that case, the time (△ t ₁ , △ t ₂ , △ t ₃ ) for drawing such a trajectory is longer than the set time (t _space ). Running it only in small cases distinguishes it from intentionally moving a finger to enter a space and a backspace. In the case of Δt ₁ , Δt ₂ , and Δt ₃ used as such criteria, one may be selected according to a user's habit or convenience.

36 illustrates an initialization process required to perform a function corresponding to a function button using a touch pad. Assumption First, the pressure calculation set by the touch pad is determined by the area where the finger touches the touch pad, so the size of the finger is different for each user, and then the pressure and threshold pressures are set. After this process, the touch short circuit time setting to perform the function of the function button by tapping and the touch pad coordinate system described in FIG. 29 are executed in the horizontal mode and the vertical mode. ) And then used to calculate the cursor coordinates in character input mode.

FIG. 37 illustrates a case in which only one touch pad is to be mounted due to space limitation, and shows a structure in which the left touch pad is removed from the input device structure shown in FIG. 23. (I) is a front view and (II) is a rear view. (III) shows a side view. However, in order to facilitate character input, the auxiliary function buttons 3701-L and 3701-R are additionally installed. This auxiliary function button has two switches at the bottom so that it is in charge of a function to designate one character when pressing a key to which a plurality of characters are assigned during character input. That is, as shown in (IV) of FIG. 37B, when 'f / L' is selected while pressing the auxiliary function button 3701R and the function button 2303R is pressed, 'f' is inputted, thereby realizing an intact keyboard. While possible, a relatively small function button replaces the left touch pad shown in FIG. 23, thereby reducing the space occupied by the input device. Moreover, another advantage is that the cursor is selected on the virtual keyboard to increase the space (area) of each key, making the cursor easier to operate.

FIG. 38 shows that character input is facilitated when an input device using a single touch pad with an auxiliary function button shown in FIG. 37 is applied to a character input method applied to a conventional keypad mobile phone. In the case of the existing keypad mobile phone, 15 keys can be arranged due to space limitation. Among them, only 12 keys can be used for text input, except for 'call', 'cancel' and 'end'. have. Therefore, when at least two or more characters are assigned to each key and a plurality of characters are specified, a method of selecting a desired character by pressing a key several times is used. However, when the auxiliary function button shown in FIG. 37 is used, it is possible to select one character among a plurality of characters assigned to each key by turning on / off the switch of the auxiliary function button without having to press the key several times. 38B illustrates that when a key designated 'ABC' is selected and executed on a virtual keyboard, a letter 'b' may be input, and 'a' or 'c' may be input while a switch of an auxiliary function button is 'on'. That is, as shown in FIG. 38A, 'a' is input when the switch 1 of the auxiliary function button is turned on, and 'c' is displayed when the switch 2 of the auxiliary function button is 'on' as shown in FIG. 38C. Is entered. That is, a general keyboard operation method is implemented in which one character is input each time a key on the virtual keyboard is executed.

FIG. 39 shows a case where the configuration of the present invention shown in FIG. 37 is also applied to a mobile phone using a keypad. That is, the same as the existing keypad mobile phone, only the additional mounting of the auxiliary function button (3901-L, 3901-R) that allows the user to select the desired character among a plurality of characters assigned to each key is different.

FIG. 40 shows text input in a keypad cellular phone having an auxiliary function button shown in FIG. The operation content is the same as that shown in FIG.

FIG. 41 is a structure of a mobile phone having only one touch pad shown in FIG. 37 and has a right function button 2303R or R 'instead of the auxiliary function buttons 3701-L and R. FIG. The difference from FIG. 37 is that the method of selecting one of two characters assigned to one key at the time of character input is different. In other words, the division of F / L is divided by F / L by pressing the auxiliary function button in FIG. 37B. In FIG. Therefore, the division of P / Q is made. Even if two characters are assigned to one key, you only need to press the key once to enter the character assigned to each key. (In fact, press the function button instead of pressing the key.)

FIG. 42 is a flowchart illustrating a text input process of the mobile phone shown in FIG. 41.

FIG. 43 is a view of a mobile phone operating in a portrait mode (telephone call mode) in which a virtual keypad (FIG. 43A) has the same shape as a general keypad mobile phone, except that an arrangement of a keypad for inputting characters (FIG. 43B) is referred to as 'call'. The 'and' cancel 'keys are omitted and two characters are specified instead. The function of the 'call' key is not necessary when the character is input, and the 'cancel' key can also be omitted from the virtual keypad because it is replaced with a finger movement of the type shown in FIG. 35. 43C illustrates a key pressing sequence when inputting characters using the virtual keypad of this type. As shown in FIG. 43C, the upward arrow indicates a finger movement of releasing a finger and then touching the touch pad. When you type 'door opens', the first 'o' of the 'door' is pressed once and the second is correct, but the original 'p' is correct, but take your finger off the touchpad once before pressing the second Since 'o / p' key is pressed again, 'o' is input again after 'o' entered first. Similarly, in the case of ' ops ' in 'opens', the first 'o' is entered, the finger is removed from the touch pad and then pressed again. Accordingly, the arrow shown in FIG. 43C means 'retouch', and moves to the next column of the sentence, restarts the number of times of pressing a key, and executes an input command of a new character. In this configuration, as the pressing reference pressure for pressing a touch pad to input characters, the pressing reference pressure for each area corresponding to each key may be applied, as described in FIG. 46, and the touch described in FIG. 49. A push-reference pressure method, which is applied to the entire pad, may be applied.

FIG. 44 is a flowchart illustrating a character input using the virtual keypad shown in FIG. 43B.

45 illustrates a keypad (FIG. 45A) of a general keypad mobile phone, and shows a key pressing sequence for inputting a 'door opens' using the keypad. In order to input the same character as the direction key, the 4501 is in charge of executing the command to end the process of calculating the number of presses of the key and to start the character input again in the next column.

46 illustrates a state where a thumb is positioned in a corresponding area in order to input text while the mobile phone is held by one hand. (I) is associated with FIG. 43B, where (I) is a 'call', (II) is a 'cancel', (III) is a finger to operate the 'end' key and (IV) is a '#' by pressing It is a finger shape to give. The dark circle in each figure shows the size of the area where the thumb touches the touchpad.

47 is a flowchart illustrating an initialization process when using a touch pad mobile phone.

FIG. 48 shows Equation (1), which is the theoretical basis of the method of calculating the pressure value by the touch pad, with a proportional constant of 10, and the contact area S and the distance d from the touch pad to the finger as variables. The function Z (pressure value) is plotted in a three-dimensional graph. Fig. 48 (A) shows the pressure value Z with continuity 0.03 <d <0.1, 0.5 <S <1.0 in d and S as follows, and Fig. 48 (B) shows that d is 0.03 <d. The pressure value Z obtained when two intervals of <0.037, 0.088 <d <0.1 and s takes values continuously in one interval of 0.5 <S <1.0 is represented by a three-dimensional graph.

FIG. 49 illustrates a pressure value calculated by the touch pad in a three-dimensional graph by placing a finger (thumb) on an inner region corresponding to a 4 cm * 2 cm size of a 6.5 cm * 4 cm touch pad. The touch pad is held in each area to hold a hand, and the touch pad is shown in FIG. 46. The actual touch pad is about twice the size of the touch pad shown in FIG. to be. FIG. 49 (A) is a perspective view seen from above 25 degrees from the xy plane and FIG. 49 (A ') is a perspective view seen from above 7 degrees in the same direction. 49 (B) and 49 (B ') are perspective views of FIGS. 49 (A) and 49 (A') rotated 180 degrees around the z axis, respectively. A color map was placed on the right side of each graph to display numerical values representing pressure values as colors. In each graph, Sp represents the connection surface of the pressure value Z obtained when the touch pad is pressed, and St represents the connection surface of the pressure value obtained when the touch pad is touched. For reference, the Z plane corresponding to the maximum value of the touch pressure is represented by S _c to show the mutual relationship between the two surfaces (S _p , S _t ).

FIG. 50 illustrates a pressure value Z calculated by the touch pad obtained in the same manner as in FIG. 49 except that the touch pad used in FIG. 49 is coated with a Myra film on the touch sensing surface of the touch pad. On the other hand, the touch pad used to obtain the pressure value shown in FIG. 50 was applied to the touch surface of the touch pad with a velcro loop fabric having a thickness of 1 mm instead of the mylar film to calculate the pressure value.

51 shows a touch screen smart phone employing the capacitive method. 51 (A) is a text input is made by directly touching the finger (thumbs) to the mobile phone screen without using a separate touch pad to operate the virtual keyboard (5101). However, as shown in FIG. 51 (A), the thumb touches the screen over several keys, so that when the user executes an input command by directly touching the screen as in a general touch screen, the user's finger is difficult to secure accuracy. Even if you touch the phone screen, you do not execute the input command immediately, but first check the position of the hand from the pointer position and then execute the input command. In order to distinguish between the touch and the pressing operation for input execution, that is, the elastic bodies 5102 and 5103 are placed on the screen, as shown in Fig. 51 (B) and Fig. 51 (C), so that a finger does not directly touch the screen. When a finger makes simple contact with an elastic body, the same principle as a touch pad is used to control only a pointer on the screen. 5102 is a transparent elastic body and 5103 is an opaque elastic body. In the case of an opaque elastic body, a space (hole) corresponding to each key of the virtual keyboard is created to check the virtual keyboard on the screen so that the user can check the point where the finger points. .

FIG. 52 is a part of an input window 5201 in which an input is made to solve this problem because a finger covers a selected key of a virtual keyboard on a screen for text input of a touch screen mobile phone to which a principle of a touch pad is applied (FIG. 51 (A)). A key 5202 and a cursor (pointer up and down reference line-5203) of the virtual keyboard where the current finger is located in the area, that is, the lower left, the lower right, and the input box of the input window are displayed to ensure accurate input. In particular, when a key and a cursor are displayed in an input box (FIG. 52 (C)), when the input is completed, the terminal automatically moves to the next column to wait for input. Therefore, when using a separate touch pad as shown in FIG. 26 (b), unlike the case where the selected key can be checked from the position where the pointer is placed on the virtual keyboard on the screen, the touch screen method in which the touch pad concept shown in FIG. 51 is introduced is introduced. 'S mobile phone shows the concept of' pointer display window 'to solve the problem caused by the touch pad being placed on the screen. As a result, the 'pointer position display window' is larger than each 'key' of the virtual keyboard, so it is also in charge of showing the pointer position more accurately.

FIG. 53 illustrates a configuration of the present invention for text input using a virtual keyboard 5301 in a touch screen type mobile phone. Unlike touch pads, the pointer on the virtual keyboard is hidden by the finger when using the touch screen. To correct this, the touch screen uses the horizontal (5303 ') and vertical (5303) cursor lines instead of the pointer (cursor) on the virtual keyboard. And a satellite window for pointer (5302) having an auxiliary pointer vertical line (5304), wherein three characters (5306) assigned to the active key are arranged on the left, middle, and right sides of the pointer satellite window. As the finger moves left and right at the active key position on the virtual keyboard, one of the three characters is selected and the input is completed when the finger is removed from the touch screen. FIG. 53 (A) shows the active key 5305 (the key darkened on the virtual keyboard) when the finger is positioned on the virtual keyboard, and FIG. 53 (B) shows that the input is completed as the finger is moved away from the screen. I, II and III are the processes of entering 'p', 't' and 'x' respectively. These 'p', 't', and 'x' are the key-point characters of each key, which means that if the virtual keyboard's key array has three columns in common, the key corresponding to the first column is among the three specified characters. The first character becomes the base character, the key corresponding to the middle column is defined as the base character among the three specified characters, and the other two characters are defined as non-key-point characters. Similarly, the rightmost column key is the rightmost character among the three specified characters. The reason for defining the reference character is to secure a finger movement space on the virtual keyboard to activate the non-reference character of each key.

FIG. 54 illustrates, by way of example, a key designated with 'STU' as a method of selecting and inputting a plurality of characters assigned to one key on a virtual keyboard. The first step of text entry begins with touching a finger on the touch screen, whereby an activation key (STU) is assigned, and then the finger movement is only one of the three specified characters shown in the pointer satellite window, allowing only the left and right movement of the pointer. Will be shown. Group (A) is the process of selecting each letter and group (B) shows the completion of input as the finger is removed from the screen. Therefore, when the key corresponding to the middle column of the virtual keyboard is selected, the active character is activated in the middle of the designated characters, and the finger moves away from the screen without moving the fingers left and right in that state. t) is inputted, and if the left and right movement of the finger moves to the area corresponding to the left and right columns of the virtual keyboard after the key selection, as shown in steps (II) and (III), the characters on the left and right of the middle characters are entered.

55 shows the operation of the function key located at the bottom left of the virtual keyboard. This is a way to expand the number of characters that can be assigned to the virtual keyboard. By selecting this function key and moving your finger to the right, the 'symbol', 'number', 'Korean', and 'English' arrays will be displayed on the screen. . Its operation principle is the same as the selection and input method of the general character described with reference to FIG. 55 (A) shows a selection process for converting the virtual keyboard to 'symbol' (I), 'number' (II) and 'Hangul' (III) by moving a finger to the right after selecting a function key. 55 (B) shows that the conversion of the keyboard layout of the virtual keyboard is completed by removing a finger from the screen.

56 shows a Hangul input method according to the configuration of the present invention. In the case where a plurality of characters are assigned to each key in the virtual keyboard as shown in FIGS. 52 and 53, in the case of the character input by the celestial recognition method, only one character (ㅣ, ·, ㅡ) is assigned to one key. If you select the vowel, you do not need to move the left and right of the finger anymore, but the same vowel is input even if you select the left and right of the active character by moving it. 56 (I) shows selection and input of 'a' (a step in which a finger falls off the screen is omitted), and FIGS. 56 (II) and (III) show a process of inputting 'ㅏ'. 56 (IV) and (V) show an input process of the support 'b' or 'ㅁ'. As shown in Figs. 56 (IV) and (V), once the activation key is selected on the virtual keyboard, the active state of the activated key is shown as black even if the finger moves left and right away from the activation key area. Does not change, only the designation of the active character among the characters assigned to the activated key in the pointer satellite window changes. In the case of Hangul, in particular, in the vowel input method of Cheonjiin (ㅣ · ㅡ) form, Figs. 56 (II) and 56 (III) show the input process of 'ㅏ' by touching 'ㅣ' and '·' respectively. Further, it is possible to further develop this by simply moving the 'l' to the '·' while the finger is in contact and then removing the finger. Therefore, in the vowel arrangement form shown in FIG. 56, instead of inputting 'ㅡ', '·', 'ㅣ' for the input of 'ㅟ', if the finger is moved once from the right side of the mobile phone once to the left side, 'ㅟ' 'Is completed. Similarly, in the case of the 'ㅐ' input, the input is completed when the finger movement leads to 'l'-> '·'-> 'l'. In other words, in the case of vowels, all the characters of the keys passing by the finger are combined to input when the finger is moved away from the touch screen. In this case, the vowel, which is normally input through three key presses, also provides the advantage of being completed at once. In the case of vowels as well as consonants, a method of increasing the convenience of input is provided.

FIG. 57 shows that when the keyboard layout is a number on the virtual keyboard, the number assigned to each key area is one. Therefore, the operation method is operated differently from letters or symbols. That is, as shown in Fig. 57 (A) -I, even though the finger touches the key '1' area and the '1' is activated, unlike when a plurality of letters or symbols are assigned to one key, the finger is moved away from the screen. The active state is not fixed, and the active key changes according to the left and right movement of the finger. As shown in FIG. 57 (A) -III, even when the finger touches the screen, when the finger moves, the new activation key becomes the place where the center of the finger stays, not to mention the movement of the pointer. The difference between numbers and letters is that when the key 'GHI' is selected on the virtual keyboard, the movement of the finger is the letter 'G', 'H' or 'I' assigned to this key with the key '' active. Leading to is shown in Figures 57 (B) -I and III. However, the left and right movement of the finger to distinguish the movement of the finger for the key selection and the character selection is used only as a means for the selection of the active character is a configuration of the present invention. However, it is shown in FIG. 57 (B) -II that the active character is not accompanied by the movement of the finger, so that the user can select another key by moving the finger up and down in the state where the active key belongs. This provides a way to overcome the fact that the center of the finger can easily distinguish each key from the left and right keys, but is less easy to distinguish from the keys located above and below. In other words, when selecting a key to be activated, it provides a way to modify it when the user selects a key other than the one intended.

FIG. 58 illustrates a structure in which a character array assigned to each key of the virtual keypad is arranged up and down rather than left and right as shown in FIG. 54 when the finger touches the touch pad. For example, when a finger touches an area of a touch pad corresponding to a key designated as 'STU', the pointer satellite window is unfolded in a structure in which letters are arranged up and down on the right or left side of the screen. The letters assigned to the keys are arranged up and down, and in order to input each character, the user moves the finger up and down while touching the touch pad to activate the character to be input (it was brighter than other characters on the screen), and then touches the finger. When you move away from the pad, characters are entered on the screen. As shown in FIG. 54, (A) is a state in which a finger touches the touchpad to activate the 'STU' key, and (B) is a letter 'S' (I) designated according to the vertical movement of the finger while the 'STU' key is activated. ), T (II) and U (III) are activated and the finger is moved away from the touch pad to show the character input is completed.

FIG. 59 illustrates an example of applying the character input method shown in FIG. 53 to Japanese. In general, FIG. 59 illustrates a process of inputting one of five characters assigned to each key with one finger movement while maintaining a keypad type character arrangement in Japan. . Unlike English, since five characters are assigned to each key, the pointer satellite is used in the keypad structure of the 3 * 3 form [{あ, か, さ}, {た, な, は}, {ま, や, ら}]. The five characters are arranged vertically in the window. The five characters assigned to each key are in the order of a, i, u, e, o in English, which is in accordance with the Japanese 50-note sequence. In this arrangement, when the key touches each key, the active characters are not displayed in the 'a' group but in 'i', 'u' and 'u' according to their position on the keypad. (e) and these representative characters are written in parentheses on the keypad. Thus, in the case of a, a, and sa, which correspond to the second line of the keypad, the characters that are activated at the moment of touching the keypad are respectively い, き, and し (し). ), In the case of ta, me, and ha of the third row, to, nu, and fu, the ma in the fourth row, ya (や) and ラ (ら) are for me, yu and レ, respectively. Ya, unlike the rest, has only three letters (YA, YU, YO) and has the structure of a (a), (i), (u), (e) and (o). Escape As an example of the input process in the keyboard layout, a process of inputting a bar and a is shown in FIGS. 59 (A) and 59 (B), respectively. To enter the bar, first touch the key '6' corresponding to the lower group (Fig. 59 (A) -I), and then move two fingers up on the virtual keyboard (Fig. 59). When (A) -II) is released from the touch screen, ha is inputted, and then the finger touches the part corresponding to the key '#' of the virtual keyboard (Fig. 59 (A) -III). If you select '' '(Fig. 59 (A) -IV) that converts to' ㅎ '->' ㅂ ', the bar will be input. Touch the key '1' corresponding to the group (Fig. 59 (B) -I) and move your finger up one space on the virtual keyboard (Fig. 59 (B) -II) Just release.

를 이들 초성 모음과 그룹화하여 사용이 용이하게 한 것이다. 이러한 배열을 이용하여 중국어 正(Zheng)을 입력하는 과정을 보여주고 있다. 먼저 'zscr/h'군이 지정된 가상키보드의 키 '3'에 손가락을 접촉하였다 떼면 'z'가 입력되고 다시 한 번 동일한 키를 접촉하면 'h'가 입력되게 된다. 이 'h'는 숫자키 '5'에 지정된 초성 'h'와 달리 단지 중국어 발음 'zh, sh, ch'만을 표시하기 위한 것으로 입력의 편리성 도모하기 위한 것이며, 이 부분은 중국어에 적용되는 특별한 입력방법이다. 이러한 중국어 문자 배열은 각 키에 지정된 여러 개의 문자 중 하나를 입력하기 위해서는 손가락이 모두 아래쪽으로 움직이면 되므로 사용자의 편리성이 더욱 높아진 것이 특징이다.FIG. 60 is an example of applying the character input method shown in FIG. 53 to Chinese. In the case of Chinese, since the characters are ideographic characters, English is used to represent each Chinese. It shows the structure arranged in ten. The characteristics of this arrangement are to distinguish the consonant group (number keys 1 ~ 6) and the vowel group (number keys 7 ~ 9) to distinguish one syllable of Chinese characters, especially the consonants (n, ng, r) used as a support It is arranged on the numeric key '0' together with the group so that the completion of one syllable can be easily identified. Moreover, the consonants are divided into four letters arranged on one key (number keys 1 to 3) and three letters specified (number keys 4 to 6). Make sure you know the location. That is, bpmf ('bo', 'po', 'mo', 'fo' is a group of four characters), dtnl ('de', 'te', 'ne', 'le' ), zcsr ('zi', 'ci', 'si', 'ri'), and jqx ('ji', 'qi', 'xi') with three characters grouped, gkh ('ge', 'ke There are ',' he '), yw' consonant groups, and the vowel group has 6 vowels, assigning a, o, and e which can be used as initial names to different virtual keys, and the remaining vowels i, u,

Grouped with these initial vowels for ease of use. It shows the process of inputting Chinese Zheng using this arrangement. First, 'z' is input when the finger touches the key '3' on the designated virtual keyboard and the 'z' is touched. Unlike the initial letter 'h' assigned to the numeric key '5', 'h' is only for displaying the Chinese pronunciation 'zh, sh, ch' and is for convenience of input. This part is special for Chinese. Input method. The Chinese character array is characterized by the convenience of the user because the fingers all move downward to input one of a plurality of characters assigned to each key.

FIG. 61 illustrates a method of inputting a required item for each character in addition to a method of inputting a plurality of characters assigned to one key without separating a finger from the touch screen (or touch pad). For example, in Japanese, as shown in FIG. 59, in order to input 'bu (ぶ)', first input 'hu (먼저)' and then add a key for operating a key designated '' 'to convert it to. A method for inputting this in one operation is shown in Fig. 61 (A) A finger movement (touch pad) for selecting 'hu (ふ)' while the finger is in contact with the touch pad. If the finger moves in a direction perpendicular to the plane (moves up and down on the plane) (move left and right), the movement distance corresponding to one key converts 'hu (ふ)' into 'bu (ぶ)', The corresponding travel distance converts 'hu (ふ)' into 'pu (ぷ)' to complete the input of 'bu (ぶ)' or 'pu (ぷ)'. bi, bu, be, bo) and 'pa' groups (pa, pi, pu, pe, po), ie the first after a touchpad touch of a finger Line movement is the selection among the letters assigned to each key, and then the movement of the finger in the direction perpendicular to the first movement produces the same change for all the characters assigned to the selected key. )-> za (ざ じ ず ぜ ぞ), ta (た ち つ て と)-> da (だ ぢ づ で ど), ka (か き く け こ)-> ga (が ぎ ぐ げ ご) etc. In Chinese, Z Conversion of Zh (S-> Sh, C-> Ch) can be accomplished in the same way, as shown in Figure 61 (B), in which case the 'zcsr' key shown in Figure 60-II is pressed twice. There is no need to touch continuously, thereby completing the finger movement in the upward direction (Fig. 61 (B) -I) and the left and right movement (Fig. 61 (B) -II).

), 2성(

), 3성(

), 4성(

) 및 경성(

)표시를 가지게 되며 본 발명에 따른 사성 입력 방법이 각각 도 62의 I, II, III, IV, V이다. 즉 이들 각각의 사성 발음은 그에 해당하는 모음을 갖는 키를 선택한 후에, 손 가락을 상하로 움직여서 사성을 선택하게 된다. 사성은 모든 모음에 공통으로 적용되기 때문에 각개의 문자로 기억할 필요가 없이 일반적인 분류로 위에서 부터 1성, 2성, 3성, 4성을 배열하고 경성은 예외적이기 때문에 가장 위의 위치 즉 1성보다 위에 배열되어 사용자의 숙지를 용이하게 한 것이다. FIG. 62 is a case where the method of the present invention shown in FIG. 61 is applied to a vowel case. In Chinese, there are five pitches (one, two, three, four and hard) in one vowel sound.

), 2 star (

), 3 star (

), 4 stars (

) And rigid (

), And the four-way input method according to the present invention is I, II, III, IV, V of FIG. In other words, each of the four pronunciations of the voice, after selecting a key having a corresponding vowel, the finger is moved up and down to select the private voice. Since personality is common to all vowels, there is no need to remember them as separate letters, so that one, two, three, and four stars are arranged from the top in a general classification. It is arranged above to facilitate the user's knowledge.

), 2성(

), 3성(

), 4성(

) 및 경성(

)표시를 가지게 되며 본 발명에 따른 사성 입력 방법이 각각 도 62의 I, II, III, IV, V이다. 즉 이들 각각의 사성 발음은 그에 해당하는 모음을 갖는 키를 선택한 후에, 손가락을 상하로 움직여서 사성을 선택하게 된다. 사성은 모든 모음에 공통으로 적용되기 때문에 각개의 문자로 기억할 필요가 없이 일반적인 분류로 위에서 부터 1성, 2성, 3성, 4성을 배열하고 경성은 예외적이기 때문에 가장　위의 위치 즉 1성보다 위에 배열되어 사용자의 숙지를 용이하게 한 것이다.FIG. 62 is a case where the method of the present invention shown in FIG. 61 is applied to a vowel case. In Chinese, there are five pitches (one, two, three, four and hard) in one vowel sound.

), 2 star (

), 3 star (

), 4 stars (

) And rigid (

), And the four-way input method according to the present invention is I, II, III, IV, V of FIG. In other words, each of the four pronunciations of the voice, after selecting a key having a corresponding vowel, by moving the finger up and down to select the private voice. Since personality is common to all vowels, there is no need to remember them as separate letters, so that one, two, three, and four stars are arranged from the top in a general classification. It is arranged above to facilitate the user's knowledge.

63 is a method for inputting all vowels by using a text input method using a touch pad according to the present invention. The display of the letter assigned to the key is arranged in both up, down and left and right directions so that four or more letters are assigned to one key. In addition, the user's familiarity is made easy by changing the characteristics of the letters arranged in the vertical direction and the left and right directions. Each of the three basic vowels ['ㅗ', 'ㅗ', 'ㅛ'], ['ㅡ', 'ㅣ', 'ㅢ'], ['ㅠ', 'TT', '의'] Marked as a letter, and the rest of the vowels are hidden. Hidden vowels can be selected by touching each key and moving the finger downward. 15 vowels are arranged so that each vowel can be entered like a normal keyboard without using the dot (·) corresponding to the cloth in the well-known cloth (·), paper (ㅡ) and in (ㅣ) methods. It does not involve additional input, such as stroke additions used in ways other than heaven and earth. Therefore, even a double vowel is inputted with two touches. For example, in case of 'Why', 'Why' is input with three touches by entering 'ㅇ' + 'ㅗ' + 'ㅐ'. That is, it provides a way to minimize the number of inputs.

Fig. 64 explains the rules when four or more keys are assigned to one key in the arrangement of Korean vowels. In other words, '키' and 'ㅛ' are arranged on the right side of the key designated 'ㅏ, ㅗ' and ',' and 'ㅛ' are arranged. 만을 'and' ㅒ ') are listed to make it easier to distinguish from each other.In the same way,' TT 'and' ㅠ 'types are arranged on the left side and' TT 'and' ㅠ 'are arranged on the left side. Only lists the types of 'ㅓ' ('ㅓ', 'ㅕ', 'ㅔ', 'ㅖ'). The rule of this arrangement is that the key closest to the base character (ㅏ, ㅗ or ㅜ, ㅓ) has a letter (ㅑ, ㅕ, ㅠ, ㅕ) appended with a cloth (·), and the next key has a stroke ( The letters with l) are arranged, and the keys with farther positions are arranged with the letters with the stroke (l) and dot (·) added to the base character. The total number of vowels arranged in this way is 15, showing the Hangul keyboard layout that provides the same input method as the keyboard except that 'ㅢ' is added to the vowels provided in the general computer keyboard.

FIG. 65 illustrates a touch pad type mobile phone instead of a touch screen type. Since a finger does not cover the virtual keyboard when the touch pad is operated, a pointer satellite window required for the touch screen type mobile phone shown in FIGS. 53 to 63 is shown. It does not need to have it separately.

FIG. 66 illustrates a method of inputting a reference character and a non-reference character when two characters are assigned to each key of a virtual keyboard (keypad), wherein the reference character is input by touching a designated key and the non-reference character is touching a designated key. In this state, if the finger moves away from the area of the key and is separated from the touch pad or the touch screen, it is input. In other words, if a finger is spaced apart from the designated key area regardless of a certain direction or distance, the input key is determined so that the finger can move freely without any further thinking about the direction and distance.

FIG. 67 illustrates a method of inputting a reference character and a non-reference character when two characters are designated to each key of the virtual keyboard (keypad). The difference from FIG. 66 is that the touch pad (or touch screen) is in a touch state. When the user is separated from the touch pad (or touch screen) while the fingers are in contact with each other (Fig. 67A-I), the reference character 'c' is input and the finger is spaced through the pressing state (Fig. 67A). -II) Shows the case where the non-reference character 'd' is entered. FIG. 67B shows a contact or depressed state of a selected key and each key in the process of inputting 'Doors open.' And input of characters is performed when a finger is touched off from the touch pad. . In order to configure the input, the touch pad (or touch screen) should have a function of distinguishing the contact state from the touch state shown in FIG. 46 or 49.

FIG. 68 shows a method of defining each key area of the virtual keyboard, and when a finger touches an area corresponding to each key, an expanded function is applied to a key in which an evenly allocated area is activated. That is, if a certain area 6801 is assigned to each key, and the finger (the center of the finger) touches the designated area, the key is activated, and the activated key 6802 thus activated is expanded by the area 6801. This results in the area of the active key including a portion of the adjacent key area being substantially enlarged in the narrow area of the touchpad. This increases the radius of movement of the finger by widening the narrow active key area of the virtual keyboard on the narrow touchpad or touchscreen. Especially, even if the finger is placed on the boundary of each key, neighboring keys are activated unstable easily. It is possible to prevent the phenomenon that the selected activation key is kept stable and the specified character is inputted. In other words, if the finger is placed at the point 'P _KL ' (6803) located on the boundary line L _KL (6804) between the keys' K 'and' L ', and there is no extension of the above activation key (Fig. 68-I), the key' K Even though 'is activated, the activation key is easily changed to' L 'with a slight movement of the finger near the boundary line L _KL 6804 so that' L 'may be input. On the contrary, when the extension function of the activation key is added, when the center of the finger is placed at the point 'P _KL ' 6803 and the key 'K' is activated (Fig. 68-II), a new boundary line L " _KL (6804K) is formed. In order to activate 'L', the extended area 6805 must be crossed, thus preventing accidental activation of neighboring keys due to finger movement as shown in Fig. 68-I. ' _KL (6804L) is formed, which brings the advantage that the key' K 'is not easily activated.This extended area makes the activation key stable, but if the area becomes too large, it becomes difficult when you want to select a neighboring key. It is preferable that the enlarged area does not pass the center of the neighboring key area, that is, it is preferable that the enlargement ratio is 2 times or less.

FIG. 69 illustrates a button function implemented using only a touch pad by using a touch pad that distinguishes a pressed state from a contact state. FIG. 69a (Mode 1) and 69b (Mode 2) each implement a button function in different ways. The method illustrates the change in pressure over time and the corresponding button state. In Mode 1 shown in FIG. 69A, the finger is spaced apart from the touch pad in the button click operation, whereas in Mode 2 shown in FIG. 69B, the finger is not spaced apart from the touch pad in the click operation. This difference in click behavior is what makes the difference between the drag behavior and the behavior for the right button function of a mouse (usually for right-handed use). In each of FIGS. 69A and 69B, (III) and (IV) show a change in touch state for a drag operation, and (V) shows a change in touch state in a process of performing a right button function. When it to distinguish between Mode 1 and Mode 2 describes the road 69a that corresponds to the first mode. 1, 69a- (I), (II) are each click (click on a reference time, t _c °, in a touch -> depresed - >touch-> touch-off process), double click (double click reference time, t _dc °, two presses are performed: touch-> 1st depressed-> touch or touch-off-> 2nd depressed- > Touch or touch-off after depressed state by touch or touch-off process does not matter) And Figures 69a- (III) and (IV) drag (drag reference time, t _d °, push operation Subsequently, when the touch state is maintained, the button down state is maintained while the touch state is performed: touch->depressed-> touch (hold)). Unlike the conventional mouse button, the difference in the implementation of the button function using the touch pad having the pushed state of the present invention is that in particular, the touch-hold state of the touch pad to implement a drag function (button hold) -hold) function. However, in the case of the two-dimensional input device (touch pad, touch screen method, etc.) that distinguishes the touch state from the pressed state of this configuration, when the distance to maintain the button hold state is larger than the size of the input device, the finger is inevitably The drag function, which must be spaced from the input device and thus made by the method of FIGS. 69A- (III), becomes inapplicable when the finger is spaced from the touch pad, thus making it impossible to apply. Therefore, the method for overcoming this is to be in the button-up state after reaching the pressed state (after the 1st click of FIG. 69-a (IV) is made) as shown in FIGS. 69A- (IV). Another depressed action is needed to make this possible. That is, the contents of Figs. 69A- (IV) allow the release of the pressed state to be performed only after another pressing operation is performed. This corresponds to the release process of the second elliptical portion of FIGS. 69A- (IV). For example, as shown in the first elliptical section (Drag section) of FIG. 69- (IV), if a touch-off state is achieved after a certain time flows from the pressed state, it is not a button-up state but a button-up state. The button-hold state will be maintained and the button-up state will not be reached until the separation operation following the pressing operation is performed continuously as in the second elliptical section (release section) of Figs. 69A- (IV). Will be done. In FIG. 69A, u, d, ru, and rd are displayed on the upper portion of the line segment showing the state of the button according to time, which means that the left button-up (u) and the left button-down (button-down, d) and The right button-up (ru) and the right button-down (right button-down, rd) are respectively displayed, and according to the configuration of the present invention, the button down state or the button up state according to the condition even in the same touch state. Show that you can have 71 illustrates the drag content of FIG. 69A in more detail. And that the right mouse button (for right-handed), time (t _r) is pressing condition continues to apply an operation corresponding to the use case that lasts longer than the push reference time (t _r °) degree of 69a ( V) is shown. In other words, if the pressing duration is less than the reference time, the change in the pressing state of the left button is longer than the reference time. Unlike the left-hand button, the right-hand button does not need to be dragged, so it is not necessary to keep the touched state of the button pressed (ie button hold) as shown in (III) or (IV) of FIG. 69a. . Accordingly, the depressed state of the right button is made by pressing the touch pad as shown in FIG. 69A (V). In other words, unlike the normal click operation of FIG. 69A (I), the right button release state may be reached only in the touch state without the touch-off being performed following the finger pressing operation. As shown in the general Windows system of a personal computer, the state of the right button is released by executing a command or simply released depending on the position of the pointer by clicking the left button. Similarly, in the case of dragging of Figs. 69A (III) and (IV) in which the left button down state is maintained, the click operation for releasing these button down states may be maintained in the touch state following the touch pad pressed state. This corresponds to 2nd Click in FIG. 69A (IV). In the above, four reference times have been defined. The first thing to be judged when interpreting the touch pad pressed state is to determine whether the pressing duration (t _r ) is less than or greater than the reference time (t _r °). If it is, the determination necessary for the process of (I)-(IV) of FIG. 69A is made. Therefore, since the pressing reference time (t _r °) is a time applied only to the pressing operation unlike the other reference times, the size can be set regardless of other reference times, and if it is larger than other reference times, the pressing state is pressed. If it lasts longer than the reference time, all other operations will be disabled. Among the remaining reference times, the click reference time and the drag reference time may be defined such that the drag reference time is greater than or equal to the click reference time. Since the double click reference time is applied regardless of these times, if it is set larger than the click reference time, if two pressing conditions occur within this reference time, the double click is executed and for the pressing state occurring after the second pressing state, All criteria will be applied again. Therefore, the execution of the button command according to the pressing action proceeds to the pressing reference time-> click reference time-> drag reference time-> double click reference time. First, it is executed by the left and right button commands depending on whether the pressing operation lasts longer than the pressing reference time. If it is less than the standard time for pressing, check whether the click is made within the standard time of the click. If the reason is not due to the maintenance of the touch state, check whether the drag operation is performed. Whether or not to execute the double-click operation is determined depending on whether or not. The above description of Mode 1 and Mode 2 shown in FIG. 69B show that the most fundamental difference is that the finger remains in the touch state when the click operation is completed. In other words, the touchpad pressed state determines the button up and the button down. Therefore, the method of Mode 1, in which the drag operation is performed by maintaining the touch state after the pressing state, cannot be applied. Instead, the pressing duration reference time is applied as the drag reference time (t _d °), and when the pressing duration is longer than this reference time, the pressing state is applied. The method is applied so that the drag operation is executed by maintaining the button down state even after is released. Since the reference time for determining the right button operation is changed to the reference time for determining the drag operation, the method of determining the right button operation is inevitably changed in Mode 2, and the method is shown in FIG. 69B (IV). This means that if the push operation ends with a touch-off within the reference time (t _r °), the right button operation is executed. If the applied reference time is the same as the click reference time, the push operation is over and the touch state is completed within this reference time. If it ends, the left button click action is executed instead of the right button click action. That is, in FIG. 69B, the click reference time and the right button reference time are set equal to each other, and the left button click and the right button click can be distinguished. The double click is executed when the additional click operation is performed within the reference time (t _dc °) following the click operation.

FIG. 69C shows that the drag operation (FIG. 69B (III)) and the right button operation (FIG. 69B (V)) are exchanged in the case of Mode 2 shown in FIG. 69B. then one will be executed when the touch-off state consist in the reference time (t _d °) Figure 69c (IV) is right-clicked is a case to run longer the pressing duration than the reference time (t _r °). The other method of applying the reference time is the same as in mode 2. Lastly, FIGS. 69D, 69E, and 69F show that the touch pad does not have a pressed state, so that an additional switch may be installed to replace the on state of the touch pad shown in FIGS. 69A, 69B, and 69C. It explains how to operate the touchpad. That is, the three states of FIGS. 69A, 69B, and 69C may be changed and applied to the touchpad device shown in FIGS. 22 and 23B as described below, so that the touchpad may be operated like a mouse with one hand.

Touch-off-> SW-off & Touch-off,

Touch-> SW-off & Touch

Depressed-> SW-on & Touch

70A is a touch pad for distinguishing the pressed state and the contact state to which the principles shown in FIGS. 49A and 49B are applied, and an elastic body 7002 attached to the touch pad 7001 to facilitate character input. It shows the structure arranged in the shape. Especially, in order to be in charge of the button function, the center active area 7003 is set so that in the area other than this active area, even if the finger is separated from the touch pad, the button function is changed to the button up state. The conversion is not made. 70-I, II, III, and IV show contact, spaced, and inactive regions in the active region and the spaced apart state, respectively, and FIG. 71 shows the change in the pointing function according to these states. The elastic body of the checkerboard structure shown in FIG. 70 has the advantage that when the finger touches the elastic body, the capacitance generated by the finger is concentrated in each elastic region by the valley 7004 existing between the elastic bodies and the finger touches it. It also brings the advantage of being able to detect location. However, if the width of the bone is too large, the irregularities of the elastic body interfere with the movement of the finger when the finger performs the pointing function. It is preferable to be below%. In a similar manner, rather than completely connecting the valleys separating the respective key areas, the edge portions of the respective key areas may be connected as shown in FIG. 70B. 78c3 and 78c4, the parts corresponding to the key top are not completely separated for each key area, so that the edge portion of each key area is connected to the effect of adding elasticity and pointing. It has the effect of making it work. In FIG. 70B, W and H represent horizontal and vertical widths of each key, and w and h represent horizontal and vertical lengths of valleys forming a boundary between adjacent keys. d represents the width of the bone, and 0.5 ~ 1.5mm is the function of the bone to identify the position of each key, and the movement of the finger in the pointing work is smooth and w and h are less than half of W and H, respectively. It is desirable to be large. If it is smaller than this, it becomes difficult to grasp the position of each key, and particularly, if d is larger than 1.5mm, it may cause a disadvantage that the hand movement is hindered during the pointing operation and the pressing operation is not smooth. However, even if the width of the bone is larger than 1.5mm, if the length of the w and h is reduced can be made up for the disadvantages that make the pointing work uncomfortable.

)보다 클 경우 버튼다운(Button-Down)상태를 유지하도록 하는 기능을 이용하는 방법이다. 이러한 방법이 적용되면 도 69-IV에 보여지는 바와 같이 드래그하는 과정에서 손가락이 터치패드로부터 이격되어도 드래그 동작이 지속 될 수 있게 되는 것이다. 도 71(C)와 (D)에 보여지는 바와 같이 터치패드 누름(Depressed)상태에서 이격(Touch-Off)상태에 이르는 이격시간(Release time,t_r)이 정해진 이격기준시간(t_r

)을 기준으로 작을 경우와 클 경우 각각 버튼업(Button-Up)상태와 버튼홀드(Button-Hold)상태를 결정하는 것이다. 즉 도 71a(C)의 경우 이격과정(7101)이 이격기준시간(t_r

)보다 작기 때문에 버튼업(Button-Up)상태에 도달하지만 도 71a(D)의 경우 이격시간(t_r)이 이격기준시간(t_r

)보다 크기 때문에 버튼홀드(Button-Hold)상태를 유지하는 것이다. 이와 같은 드래그 혹은 스크롤 기능을 위한 본 발명의 이격기준시간에 의한 버튼홀드 상태의 유지 상태를 도 71b에 도식적으로 설명하고 있다. 71A (A) and 71A (B) respectively show the role of the active area when the finger movement is performed by pressing and separating movements along the paths I-> II and I->III-> IV of FIG. It shows how it works. In both cases, it does not matter even if it is not the active area, but the pressing operation is made in the center active area 7003. In the case of FIG. 71A (A), a finger is spaced apart from the touch pad in the active area to transition to a button-up state at the same time as the touch-off state. In the case of FIG. 71A (B), even if the finger is moved out of the active area (III) after being pushed out of the active area (III) and moved to the touch-off state by being separated from the touch pad (IV), the button-down is performed. Show hold. Therefore, the use of the active area shown in FIG. 70 shows that zooming can be performed without a function button in addition to simple click and double click in a pointing operation. Furthermore, FIGS. 71A (C) and 71A (D) show a method of facilitating a drag function without setting the active area. I.e. functions shown in Figure 69-IV that is pressed state from touch-off state is spaced from the reference time period is already set as a change (spaced reference time - t _r

It is a method to use the function to keep the button-down state when it is larger than). When this method is applied, as shown in FIG. 69-IV, the drag operation can be continued even if the finger is separated from the touch pad in the dragging process. Figure 71 (C) and (D) which is depressing the touch pad (Depressed) spaced apart in time to reach (Touch-Off) state in a state as shown in (Release time, t _r) is determined based on the time spacing (t _r

In case of small and large, the button-up state and button-hold state are determined respectively. That is, in the case of FIG. 71A (C), the separation process 7101 is the separation reference time t _r.

Since it reaches a button-up state because it is smaller than), in the case of FIG. 71A (D), the separation time t _r is the separation reference time t _r.

It is larger than), so it maintains the button-hold state. The holding state of the button hold state by the distance reference time of the present invention for such a drag or scroll function is schematically illustrated in FIG. 71B.

FIG. 72 illustrates four threshold values of pressing pressure (Z _detouch , Z _touch , and Z _press to stabilize the contact state and the pressing state in a method of implementing a button function using a touch pad that distinguishes a pressed state from a touch state. _-up , Z _depress ) shows an example of how the method is applied. Z _touch and Z _detouch are threshold values of the pressing pressure for switching from non-contact state to contact state. Z _touch is a reference value applied when switching from non-contact state to contact state and Z _detouch is _changed from contact state to non-contact state. The reference value applied. When these reference values are applied to the change of the pressing pressure over time, how the contact and the pressing state changes, ① and ② do not exceed the _touch state threshold value Z _touch , so the touch-off state is not yet achieved. It is maintained, and it becomes the touch-on state when it is in the state of ③. ④, which has a higher pressing pressure than ③, has not yet exceeded Z _depress , so it remains in the touch-on state. The process of ①-> ⑤ was the process of increasing the pressing pressure, but the process of ⑤-> ⑨ is the process of decreasing the pressure. This is because different conversion thresholds are applied according to the pressed state. That is, ② and ⑧ have the same pressing pressure, but ② represents the touch-off state and ⑧ represents the touch-on state. Similarly, ④ and ⑥ have the same pressing pressure, but ④ represents the touch-on state and ⑥ represents the depressed state. As a result, Z _touch In the twenty seventh aspect of the present invention, the pressure difference between Z _detouch and Z _depress Z _{press - up} can act as a buffer for stably maintaining the touch-on state and the depressed state, respectively. Configuration.

73 is a diagram schematically illustrating a tapping and a double tapping process for a button function in a general touch pad or a touch screen. These touchpad tapping and double tapping operations are already used as the function of clicking and double-clicking the function button. The principle is that the interval between touch-on and touch-off is the reference time (Δt _interval). If it is below), it works by tapping and double tapping respectively. That is, in FIGS. 73 (I) and (II), the touch-on intervals (t ₂ -t ₁ , t _4- t ₃ ) and the touch-off intervals (t ₃ -t ₂ ) are smaller than the reference time (Δt _interval ). Click-and-Hold for the function of clicking and double-clicking, but for the function of drag, corresponds to the double tapping, as shown in Fig. 73 (III). The tapping-touch is hereinafter referred to as one and half touch). However, unlike a function button, in order to perform a drag function by using only the touch pad, the drag distance is long, and the finger is spaced from the touch pad, and the back of the drag is started. There is a problem that the touch-on state is released. A method for overcoming this is that the release of the buttondown state is performed by another tapping operation occurring after a one and half touch (tap & touch) operation. That is, the touch-off occurring at t ₄ of FIG. 73 (III) does not release the button-down state, and the touch-on state between t ₅ and t ₆ is larger than the reference time (Δt _interval ), and thus does not operate by tapping. The button-down state continues and the button-down state is released only when the tapping action occurs at t ₇ .

L2)이 4mm~6mm 이 되도록 배열하고 도선의 사이를 두께 1mm 내외의 폴리우레탄 폼 스폰지와 같은 탄성체를 배열하고 그 위에 또 다른 두께 0.05mm 이하의 연결 도선을 전극이 연결된 도선 7402, 7403에 직각 방향으로 배열하고 그 위에 또 다른 절연필름을 씌운다. 연결도선 7405는 외부 전극이 연결되어 있지 않고 단지 터치패드가 눌려졌을 때 전극이 연결된 전극 도선 7402와 7403을 단락시키는 기능을 담당한다. 전극도선의 간격에 비해 연결 도선인 7405의 간격은 더 1mm 간격으로 하여도 무방하나 너무 촘촘할 경우 터치패드 전극과 손가락 사이의 정전용량 변화를 손가락이 닿는 부분만이 아니라 터치패드 전체 영역에 분산시키는 부작용을 가져와서 터치패드의 포인팅기능을 마비 시킬 수 있으므로 유의해야 한다. 이상의 스위치 구조는 터치패드의 포인팅기능을 방해하지 않으면서도 터치패드가 눌려졌을 경우 기능버튼의 신호를 컴퓨터 입력 제어부에 전달하여 기능버튼의 기능을 담당하게 되는 것이다.74 illustrates a method of attaching a switch, which functions as a function button of a touch pad, to an upper surface of the touch pad (FIG. 39A), a wire arrangement (FIG. 39B), and a switch unit being pressed when the touch pad is pressed to short-circuit the switch circuit. This is done (FIG. 39C). 7401 and 7406 are polymer films that insulate conductors and preferably have durability and flexibility like polyester films. The 7402 and 7403 are electrically connected polarity electrodes (the ground electrode connected to the function button switch of the touch pad and the general + 5V anode) are connected to the 7401 insulating film with a thickness of 0.1 ~ 0.3mm. Attach the gap between the conductors

L2) is 4mm ~ 6mm, and elastic body such as polyurethane foam sponge with thickness of about 1mm is arranged between conductors, and another connecting wire of 0.05mm or less in thickness is perpendicular to the conductors 7402 and 7403 connected with electrodes. And place another insulating film on it. The connecting lead 7405 is responsible for shorting the electrode leads 7402 and 7403 to which the electrodes are connected when the external electrode is not connected and the touch pad is pressed. The distance between the connecting wires 7405, which is the connecting wire, may be 1 mm apart from the distance between the electrode wires. However, if the distance is too tight, the capacitance between the touch pad electrode and the finger may be dispersed not only in the area where the finger touches but also in the entire area of the touch pad. Be careful because it can paralyze the pointing function of the touchpad. The above switch structure is to function as a function button by transmitting a signal of a function button to a computer input controller when the touch pad is pressed without disturbing the pointing function of the touch pad.

FIG. 75 shows that the Japanese input method is implemented in the horizontal mode, and the input method is the same as the vertical mode shown in FIG. 59. In other words, the basic 50-degree keyboard layout is a 3 * 3 structure, arranged from 'a' (あ) to 'la' (ら) rows, and 'wa' (わ) rows at positions corresponding to '0' of a general keypad mobile phone. Arrange As shown in FIG. 75Aa, when a finger touches a position of a touch pad corresponding to a representative character of fifty-five degrees, the vowel characters represented by the character are listed left and right, and the 'a', 'e', ' ',' 'Right' and 'o' are in order of order. As the finger moves left and right in contact with the touch pad, the character currently located among these five notes is inputted at the same time as the finger is separated from the touch pad. FIG. 75aa shows that the 'i' (い) is input when the finger touches the key position representing the 'a' (あ) row and falls. FIG. 75aab shows the key representing the 'a' (あ) row of the fingers. After contacting the location, move two spaces to the right to move away from the touchpad. The difficulty in the character input method is that the first point of contact with the touch pad is not a character string to be originally input. That is, as shown in FIG. 75aac, the string intended to be input is 'T' in the 'ta' (た) line, but the actual selected line is 'A' (あ) line. The input method described with reference to FIG. 75aa includes a method of releasing a character from the touch pad, then canceling the input character, and selecting a 'T' line again to input a letter 'T' (ち) originally intended for input. For example, if a user moves his or her finger away from the touch pad on the virtual keyboard of FIG. 75aa-II and the hand is spaced apart from the touch pad, character input is not made and there is no need to cancel. Nevertheless, this method involves unnecessary finger movements to correct the mistake of key selection. A method of correcting this is described in FIG. 75Aac, since the touchpad can distinguish a touch state from a pressed state in the configuration of the present invention. That is, in order to input the originally intended 'tee' in a situation where 'i' (い) is selected as shown in FIG. 75aac-II, the user does not need to separate the finger from the touch pad, as shown in FIG. 75aac-III. Move one cell and then press the touchpad (Fig. 75aac-IV ') to activate the' ta '(た) row. In this case, when the finger touches the touch pad, the character intended to be input is selected by a single action, and a key is assigned to a narrow area of the touch pad so that the wrongly selected key can be easily modified to easily It provides a way to choose. Such a modification method is impossible in a touch pad or a touch screen input method without a conventional pressing function, and thus has a disadvantage in that an area allocated to each key must be large enough for a finger to select. For this reason, the size of the touch pad or touch screen does not become small. Therefore, the touch pad of the push function according to the present invention enables the user to easily input a letter even if a large number of keys are provided in a relatively small space, so that all the letters can be arranged within the movable range of the thumb. Ultimately, text input using a portable digital device is possible with only one hand operation, and an easy input method is provided even in Japanese, which is difficult to input text than the language. 75B-E show Japanese keyboard layout in landscape mode. 75F is a variation of the method of FIG. 75Aac, and the character string corresponding to the position at which the finger is pressed is expanded and displayed on the screen only when the touch pad is pressed while the keyboard is not expanded by simple contact. In other words, the touchpad touch of a finger is simply a process for selecting a character string to which a character to be input belongs, and once a desired character string is selected, the touchpad is pressed to execute a string extension command so that the character can be finally selected. to be. This is also the completion of the character input system for the touch pad digital device by realizing a function that has not been possible with the touch pad until now by using the touch pad that can distinguish the pressed state of the present invention from the contact state.

76 and 77 show an example of applying a method for substituting the function of the function button by dividing the pressing pressure value provided by the touch pad using the elastic body in the configuration of the present invention to a touch pad having a multi-touch function. have. FIG. 76 shows a cover picture of a capacitive multi-touch function described in Apple International Application WO 2005 / 114369A2, which has a problem in using a function button unlike a general touch pad. In other words, in case of general touchpad that detects only one point, the function button function can execute the command for one touch point detected by the touchpad, but in case of multi-contact, it executes the command corresponding to one of a plurality of touched points. I can't tell what to do. On the contrary, since the pressurized pressure dividing value using the elastic body of the present invention provides not only information on / off of the function button but also information on the position where the change of pressure occurs, that is, the position of the contact point, the pressurized pressure value is divided among them even if multiple contact occurs. This brings the advantage of allowing only the instruction that corresponds to the point that exceeds the threshold to be executed. As an example, as shown in FIG. 77, when the keyboard is replaced with the multi-touch touch pad 7703, the virtual keyboard 7702 on the screen 7701 and the keys of the touch pad correspond to one-to-one correspondence, and a touch point 7704 on the virtual keyboard is provided. When the display is separated from the pressing point (equivalent to 7705-'g'), it brings convenience and efficiency to the user using a general keyboard, and also has the advantage of replacing the keyboard with the strength of the user interface of multi-touch. Is charged. This shows that the function of the function button of the multi-function touch pad is shown as an example showing the effect of the separation of the contact state and the pressing state according to the division of the pressing pressure value using the elastic body of the present invention. That is, in the case of the multi-touch touch pad, the command execution is mainly implemented by the movement of the finger instead of the function button because of the limited elements of the function buttons as described above. It provides a way for command execution to the contact point to be made.

78A illustrates a combination 7781 of a touch pad body 7826 and a keypad body 7822 described in US Pat. No. 7,151,528, in which numbers and letters are input by a keypad, and a pointing operation is performed by a touch pad. The principle of operation is a push column 7824 in the center of the lower surface of the key 7820 of the keypad body 7822, which penetrates through the holes 7828 of the touch pad 7826, and switches 7832 of the dome switch bundle 7836. ) And press the key 7820 with the finger to turn on / off the switch (7832). In the figure, the 7834 is an LED to illuminate the key at night, and the 7840 facilitates the on / off of the dome switch by the distance between the touch pad and the dome switch. A touch pad having such a structure may be a structure of the present invention, and the center of each key 7820 is matched with the center of a key on the corresponding virtual keyboard and a character input method is executed by the virtual keyboard. . For example, when a finger touches the key 7820 and falls, the first character of a plurality of characters assigned to the virtual keyboard is input.If the finger is released from the key after the key is pressed once, the second character assigned to the key is input. If three letters are assigned to a key, if no key is pressed, if you press once, press twice in succession, and the first, second, and third of the letters assigned to the key The first character is entered in each case. That is, the configuration of the present invention can be realized even if the entire touch pad area does not play a switch function and a switch limited to a designated area is shown as shown in FIG. However, in the case of FIG. 78A, since the separation distance between the key and the key should be sufficient so as not to simultaneously press the neighboring keys, the number of keys that can be arranged in the same touch pad area is reduced. 78b to 78g apply a method for distinguishing a pressed state and a touch state using an elastic body, which is another configuration of the present invention, as a method for overcoming these disadvantages. Unlike the previous configuration, it is possible to illuminate the finger contact surface by using a light emitting source such as an LED built into the body of a mobile phone without making holes in the elastic body or blocking the light path using only the air layer instead of the elastic body. It also provides a way for these lights to replace the role of a pointer on a virtual keyboard.

FIG. 79 illustrates a change of a method of expanding a character assigned to each key in the input method described in FIG. 53. That is, FIG. 53 illustrates a case in which characters assigned to a virtual key are arranged in a row from side to side or up and down, and FIG. 79 has a form of left and right symmetry. Shows. FIG. 79A shows the case where only two characters are assigned to each key as described in FIG. 66, and FIG. 79B shows the case where three characters are assigned to each key. Characters are arranged in a third character below the position of the designated key, and FIGS. 79B-II illustrate a method of arranging a second character in the left and right directions of the designated key and a third character in the bottom. Similarly, C, D, and E of FIG. 79 show a method of arranging characters in left and right symmetry when four, five, and six characters are designated for each key. If six characters are specified, only one arrangement is possible. However, if four and five characters are assigned to each key, the arrangement as shown in Figs. 79C-II and 79D-II is possible.

FIG. 80 illustrates the arrangement of FIG. 79D as a method of arranging a plurality of characters for a Japanese character input method in which five characters are designated in one key. Among them, FIG. 80A is an example in which FIG. 79D-I is applied. An example of applying FIG. 79D-II is FIG. 80A '. In FIG. 80A, I, II, and III show the arrangement of characters on the virtual keypad having the form of T9 when the keys are located at the left ('た (ta)') and the right ('は (ha)'), respectively. Only half shows the arrangement, and Figs. 80B, B ', C and C' show that additional characters can be arranged in one key by using the pressed state of the touchpad provided by the present invention. In the simple touch state, the characters of the first group may be expanded and displayed, and in the pressed state, the characters of the second group may be expanded and displayed. Furthermore, the third, fourth, ... group characters may be expanded according to the number of times the pressing state is repeated, and FIG. 80C shows the third group of characters arranged and expanded. That is, in the case of Japanese characters, when a finger touches a touch pad area corresponding to a key designated by 'た (ta)', the first group of characters of the character (た ち つ て と, は ひ ふ へ ほ) is shown in FIG. 80A or 80A ' When this area is pressed once to reach the touch state and then returns to the touch state, the second group of characters (だ ぢ づ で ど, ば び ぶ べ ぼ) are shown in FIGS. 80B (corresponding to FIG. 80A) and 80B. (It corresponds to Fig. 80A), it is expanded and shown to be able to select and input. When pressed again in this state, the third group of characters (っ, ぱ ぴ ぷ ぺ ぽ) is shown in Fig. 80C (Fig. 80A). Or 80C '(Fig. 80A), but in case of' ', only one character belonging to the third group is' っ (corresponding to 'ltu' in romaji notation) '', so the distinction between C and C is meaningless. It will be shown as an extended array so that you can select it and enter it. In summary, the first group of Japanese characters refers to the hearing containing the vowels, and the second group refers to the sound of the consonants beginning with "(double quoation mark), and in the case of vowels the letters written in small letters ( (3) The third group includes semitones, ie the letters 'p' in English and the tactile letter 'っ', especially in the case of vowels. Therefore, the touch pad input device that distinguishes the pressed state from the touch state of the present invention can input Japanese characters without using the Roman letter 'L'. L '+' T '+' U 'should be input, but in the present invention,' T '(' T 'of touch state) +' u (ぅ) '(press' vowel' U 'state and touch' U 'can also be implemented using the small character'. ' Input method is 'Y' (Touch status 'Y'-'N, M, Y, R' does not change the character in the pressed state.) + 'U (ぅ)' (Pressed vowel 'U' And “U” in the touch state means “う.” As shown in the example, in the case of the touchpad input device that distinguishes the pressed state from the touch state of the present invention, the number of characters that are expanded It can be doubled through the touch function of the touch pad, and especially in the case of characters having similar attributes, such as Japanese, these similar characters can be assigned to a single key. An advantage of the character arrangement is that an additional action of pressing the designated key is required compared to FIG. 75, but nevertheless, the movement of the finger is limited to the movement of the designated key to the peripheral key, thereby increasing the accuracy and convenience of the input. Chinese If two letters are assigned to one key, the first letter is entered after touching the specified touchpad area, and the second letter is entered when the finger is dropped after touching the designated area once. It is a way. However, in the case of vowels, it is easy to input repeated vowels by arranging only one character in each key. Like consonants, two vowels can be assigned to one key to reduce the space.

(K, KH, G, GH, NG의 발음에 해당), 경구개 파찰음 그룹에 해당하는 문자

(CH, J, JH, NY의 발음에 해당), 젖혀진 혀 폐쇄음 그룹에 해당하는 문자

(TT, TTH, DD, DDH, NN의 발음에 해당), 치이 폐쇄음 그룹에 해당하는 문자

(T, TH, D, DH, N의 발음에 해당)와 양순 폐쇄음 그룹에 해당하는 문자

(P, PH, B, BH, M의 발음에 해당)을 모음 배열 아래에 배치하는데 하나의 키에 5개의 문자가 지정됨으로 해서 도 67의 방법으로 입력하기에는 불가능하므로 도 75의 방법을 적용한다. 이렇게 적용된 힌두어 입력 방법의 경우 전체적인 힌두어 문자 배열이 도 81a4와 도 81a5에 각각 모음 배열이 첫 번째 줄과 두 번째 줄에 배치된 경우를 보여주고 있으며, 각 문자의 입력 예가 각각 도 81b1~4에 보여지고 있으며 이들 각각의 문자의 입력 예는 도 81a4의 힌두문자 배열에 따른 예이이며, 도 81a5는 모음을 중간 줄에 배치할 수 있는 또 다른 방법을 예시한 것이다. 도 81b1과 도 81b2는 모음의 경우를 특히 "우(U)" 발음에 해당하는

(각각 단 모음 U와 장모음 UU에 해당하는 문자)를 입력하는 방법인데 우 선 해당 키에 해당하는 영역을 터치하면 단모음 'U'에 해당하는 문자가 도 81b1과 같이 나타나는데 힌두어의 경우 기본형과 축약형이 있는데 일반적으로는 자음과 결합하는 축약형의 형태가 해당 키의 위치에 배열되고 단독으로 쓰이는 기본형은 아래쪽으로 손가락이 이동하여 선택한 후 손가락이 터치패드로부터 이격 될 때 입력되는 방법이다. 따라서 대개의 경우 자음과 결합되는 축약형의 경우에 손가락이 해당 키 영역을 터치한 후에 이격하면 입력되도록 한 배열이다. 그리고 장음 'UU'의 경우는 해당 키 영역을 눌러 줄 경우 기본형과 축약형이 도 81b1과 같이 화면에 보여지며 단음 'U'와 마찬가지로 축약형은 손가락이 눌려진 위치에서 그대로 이격되면 장음 'UU'가 입력되고 손가락이 아래 쪽으로 이동하여 기본형을 선택한 후에 이격하면 기본형이 입력되는 방법이다. 결과적으로 힌두어 모음의 경우 축약형과 기본형의 경우는 터치 혹은 한 번의 누름 동작에 입력되거나 혹은 터치 및 누름 동작에 이어지는 슬라이드 동작으로 입력되도록 한 것이지만 도 81b에 보여지는 모음 입력의 경우와 달리 축약형과 기본형의 순서가 바뀔 수도 있다. 자음의 경우 동일한 방법으로 하나의 그룹에 속한 5개의 문자를 입력되도록 한 방법이 발음 'K'가 속한 자음 그룹을 예를 들어 도 81b3~4에 보여지고 있다. 손가락이 해당 키 영역을 터치하면 이 그룹에 속한 'K', 'KH'에 해당하는 두 개의 문자와 이들 문자의 반자음 형태의 문자를 각각의 좌, 우 및 아래쪽에 배치하고 위쪽으로는 각 그룹의 콧소리 자음에 해당하는 비음 문자를 위쪽에 배치하여 선택할 수 있도록 한 방법이다. 그리고 해당 키 영역을 눌러주면 각 그룹의 나머지 두 개의 문자의 배열이 나타나서 선택하여 입력 되도록 한다. 즉 'K' 발음이 속한 문자 그룹의 경우 누름상태에 서는 'G'와 'GH'에 해당하는 문자 및 그의 반자음이,

가상키보드에 나타나서 선택 입력되도록 한다. 입력 방법은 도 75의 경우와 동일하다. 이들 자음, 모음 외에 비모음, 비자음 기호 등 특수 문자는 도 81a4에 보여지는 바와 같이 세 번째 줄에 단독 혹은 복수의 문자가 각 키 영역에 지정될 수 있으며 그 입력 방법은 지정된 문자의 개수에 따라 기본적인 자음, 모음의 입력 방법과 동일한 방법이 적용 될 수 있다.FIG. 81A applies the contents of FIG. 67 to a virtual keyboard form of 5 (line) * 5 (column) (in the strict sense, an array in which characters are designated 3 (line) * 5 (column) form) and FIG. 81A1, a2, and a3. , a4 shows the virtual keyboard layouts in English, Japanese, Chinese, and Hindi, respectively. In the case of English, 'ab' is assigned, 'a' is input when the finger touches the touch pad area corresponding to the key and falls away.Then press this area to reach the pressed state, and then move the finger away from the touch pad. 'B' is inputted as described above with reference to FIG. 67. However, unlike English, Japanese, Chinese, and Hindi are characterized by a single vowel character arranged on one line of the virtual keyboard. Especially, when entering Japanese, Chinese, and Roman characters, the arrangement of initial, neutral, and final is clearly distinguished. Arrangement by separating the vowels corresponding to the neutral brings the advantage of double the convenience of character input. In the case of Hindi, vowels are also separated to facilitate the convenience of character input. The same is true for Hangul, so the collection of vowels in the middle is shown separately in FIG. In Chinese, similarly to English, two letters are automatically arranged on one key in alphabetical order except for vowels, while in Japanese, the alphabets are K (K), S (さ), T (た), H (は), N (な), M (ま), Y (や), and R (ら), arranged in the order of four separate alphabets, L and W, required to enter Japanese in Roman form. The left and right ends of the first line are arranged. Characters corresponding to Japanese sound are input by pressing the key area where the corresponding character is assigned, and then pressing the finger away from the touch pad. In other words, simply touch the area of the touch pad corresponding to 'K' and 'K' is input when the finger is dropped, and press once to reach the pressing state, and then enter 'T' when the sound is separated. However, in case of H (Ha), it contains 'P', which is a halftone sound, so if the finger is separated from the touch pad after pressing twice, 'P' is input followed by Japanese characters. In Hindi, the arrangement of consonants is based on the phonetic structure and corresponds to the group of closed closed sounds.

(Corresponds to the pronunciation of K, KH, G, GH, and NG)

(Corresponding to the pronunciation of CH, J, JH, NY)

(Corresponds to the pronunciation of TT, TTH, DD, DDH, NN)

(Corresponds to the pronunciation of T, TH, D, DH, and N) and the letter of the closed-sound closed group

(Corresponding to the pronunciation of P, PH, B, BH, M) is placed below the vowel arrangement, and since five characters are assigned to one key, it is impossible to input the method in FIG. 67. Therefore, the method of FIG. 75 is applied. In this Hindi input method, the entire Hindi character array is shown in FIGS. 81A4 and 81A5, where the vowel arrays are arranged on the first and second lines, respectively. Examples of input of each character are shown in FIGS. 81B1 to 4, respectively. An example of inputting each of these characters is based on the Hindu character arrangement of FIG. 81A4. FIG. 81A5 illustrates another method of arranging a vowel in a middle line. 81B1 and 81B2 correspond to the case of vowels, in particular, the pronunciation of “u”.

(The characters corresponding to the short vowel U and the long vowel UU, respectively) .However, if you touch the area corresponding to the corresponding key, the short vowel 'U' appears as shown in Fig. 81B1. In general, the condensed form combined with the consonant is arranged at the position of the corresponding key, and the basic form used alone is a method that is input when the finger is moved away from the touch pad after the finger is selected to move downward. Therefore, in the case of the abbreviation type that is combined with the consonant in general, the arrangement is such that when the finger touches the corresponding key area and is spaced apart, the input is performed. In case of long sound 'UU', the basic type and abbreviation type are shown on the screen as shown in FIG. 81B1 when pressing the corresponding key area.Like the short sound 'U', short form 'UU' is displayed when it is separated from the pressed position. When the input is input and the finger moves downward to select the basic type and then spaced apart, the basic type is input. As a result, in the case of the Hindi vowel, the abbreviated form and the basic form are inputted by touch or one push action or by a slide action following the touch and press action, but unlike the vowel input shown in FIG. The order of the base types may change. In the case of consonants, a method of inputting five characters belonging to one group by the same method is illustrated in FIGS. 81B3 to 4 through the consonant group to which the pronunciation 'K' belongs. When the finger touches the corresponding key area, two letters corresponding to 'K' and 'KH' belonging to this group, and the letters of the semi-consonant type of these letters are placed on the left, right and bottom respectively, and each group upwards. This is a way to select a non-negative character that corresponds to the nasal consonants of the top. If you press the corresponding key area, the remaining two letters of each group will appear and be selected. That is, in the case of the letter group belonging to the pronunciation of 'K', the letter corresponding to the letter 'G' and 'GH' and its half consonant in the pressed state,

Appears on the virtual keyboard for selection input. The input method is the same as the case of FIG. In addition to these consonants and vowels, special characters such as non-vowels and non-vowels can be assigned to each key area on the third line as shown in FIG. 81A4. The same method as the basic consonant and vowel input method can be applied.

FIG. 82A applies the virtual keyboard form shown in FIG. 81 to Korean. In the case of 'ㄱㅋ', when the finger is dropped after touching the designated touch pad area, 'ㄱ' is inputted, and when the finger is dropped after pressing the designated area once, 'ㅋ' is inputted. In the case of a vowel, 'ㅏ' is a method of inputting 'ㅏ' when a finger is dropped after touching a designated touch pad area, and 'ㅑ' when a finger is dropped after pressing a designated area once. The same is true of 'ㅓ', 'ㅗ', 'TT', and 'ㅡ'. And similar to Japanese and Chinese, Korean has the distinction of primary, neutral, and final, which has the advantage of maximizing the convenience of character input by arranging vowels in the middle line, especially when you press the shift key on the Korean keyboard. In the case of a touchpad capable of distinguishing the touch state from the touch state of the present invention, the present invention provides a method of inputting these characters by pressing a designated key region without using a shift key. For example, in the case of 'ㄲ', the input is required only when the keyboard is pressed simultaneously with shift + 'ㄱ', but in the Korean virtual keyboard of FIG. 82a, '면' is input by pressing the touch pad area in which 'ㄱ' is designated twice. . In other words, if there is a separate 'shift' key, it is no longer necessary to touch (or press) a desired character after pressing or touching the 'shift' key. It also provides advantages that make it easy to get used to. One of the features of FIG. 82A is that the vowels of ㅔ, ㅐ, ㅖ, ㅒ are implemented as 'ㅓ + ㅣ', 'ㅏ + ㅣ', 'ㅕ + ㅣ', 'ㅑ + ㅣ' unlike the Korean keyboard. . This means that ㅖ and ㅒ are entered using the 'shift' key on the Korean keyboard, so that the 'shift' key is not used. However, unlike the Korean keyboard, ㅔ and ㅐ are inputted as a combination of 'ㅓ + ㅣ' and 'ㅏ + ㅣ', which can be implemented by repeatedly pressing the key area where 'ㅏ' and 'ㅓ' are assigned.

Fig. 82B shows a keyboard that separates Japanese vowel input into a completed type and a stand type. Originally Japanese cannot represent the vowels of the consonant type because the letter represents the consonant and the vowel, so the letters i, u, e and o are used. However, the reason there is no stand a is because each Japanese character already has a phonetic value of a. When the vowel is input, the character with the phonetic value of 'k' is input as follows.

'か' + 'i'-> 'き',

'か' + 'u'-> 'く',

'か' + 'e'-> 'け',

'か' + 'o'-> 'こ',

Like this, in case of Japanese, all syllables can be input in the form of 'consonants' + 'vowels' in the same way as Korean, so Japanese can be input in the same way as an input method using a keyboard. The keyboard shown in FIG. 82B is a structure in which the stand type bar can be used only as a stand by dividing the stand type bar and the completed type bar. Symmetrical vowels 'i, u, e, o' are shown on the right and 'い, う, え, お' is arranged on the left. In other words, if you need to input 'か い', you can't express' か い 'by inputting' か '+' i. Another input that allows you to enter 'い' should be preceded by the input of special keys such as '*' and '#' of a normal keypad mobile phone. However, if you have a complete vowel, you can enter these complete vowels. In other words, the case of 'か い' and 'き' are easily distinguished, so that the user does not need to use additional function keys for distinguishing the vowel stand type from the completed type, and thus the convenience similar to that of the keyboard input method is possible. . The keyboard of FIG. 82B has the same keyboard layout as the conventional T9 keypad, so that the user does not have to be familiar with the new keyboard and can easily perform Japanese character input only by learning the vowel arrangement of the left and right columns. Supported vowel arrays can be interchanged. And the method of changing the sound value of each consonant (for example, k-> g, s-> z, t-> d, h-> b-> p) is the same as the description of FIG. 81A2. However, the functions of 'L' and 'W', which bring about the change of vowel and consonant, can be implemented by pressing the area corresponding to consonant and vowel used in combination with these letters several times. As an example, the function of the letter 'L' shown in the keyboard of FIG. 81A2 is implemented in the keyboard of FIG. 82B. In the Romanji input method of a general computer keyboard, 'あ (general vowel)' and 'ぁ ( Lower position) 'is implemented as input of' A 'and' L '+' A ', respectively, but in the keyboard structure of FIG. 82B of the present invention, a finger is touched while touching a key region corresponding to a completed vowel' あ '. Spaced apart (type 'あ'-primary character) or the touch pad is pressed while the finger is spaced apart (type 'ぁ'-secondary character). In the case of the letter 'W' on the keyboard of FIG. 81A2, 'wa' and 'wo' are applicable to the letter 'W'. Spaced apart (type 'わ'-reference character) or separated by pressing the touch pad while the fingers are spaced apart (type 'を'-non-reference character). One of the differences is that Japanese keypad keyboards generally assign わ を ん to the same key so that pressing `` once '' and pressing `` three times '' enters 'ん' three times. 'Is combined with', which means that 'な' has no change in consonant unlike 'か', 'さ', 'た' and 'は', so specifying 'ん' as a nonstandard character is a problem. It is not possible to enter 'ん' easily because it is not possible with the existing keypad. This is because the subject 'に, ぬ, ね, の' should be implemented, but in the state where the stand-type vowels are separated as in the keyboard of Fig. 82B, 'な' is combined with 'ん' to designate the reference and non-reference characters. If the keyboard structure adds two columns to the left and right sides of the T9 keypad structure, it can be applied to existing keypad mobile phones. In this case, the vowel changes according to the number of times each key is pressed (あ-> ぁ). ) And change in consonant value (k-> g, s-> z, t-> d, h-> b-> p), etc. And the touch state and the pressed state are distinguished as in the touch keypad of the present invention. If the keypad area is narrow and only one additional column is to be arranged on the left and right side of the T9 structure, the separated vowel (A) and the completed vowel are assigned to one key, and the bottom letter of the completed vowel is assigned in order according to the number of times of pressing. The method may be applied. For example, in case of い, in case of touch keypad, touch-> press one time-> press twice. Then, stand type bar is input in order of i-> い-> ,, and add one column to existing keypad. In case of applying, press once-> press twice-> press three times to input each in the same order. In addition, an input such as a katakana type or a special character may be extended and applied using the '*' key or the uppermost right key where a character is not specified in the touch keypad shown in FIG. 82B.

FIG. 82C is a modification of FIG. 81A3 so that a user can easily recognize the Chinese keyboard. The difference is that two consonants corresponding to the same pronunciation group are assigned to one key based on the Chinese Pinyin. In the case of Chinese Pinyin, 'bpmf', 'dtnl', 'zcsr', 'jqx' and 'gkh' are classified as the same pronunciation group. It brings advantages that can be easily recognized. The arrangement rule is to apply only one letter per one stroke by arranging only two letters on one key. Since four letters belong to the same group, these four letters are divided into two and placed on the upper and lower keys on the keyboard. To arrange each. However, in the case of 'gkh' and 'jqx', three characters belong to each group, so two letters are assigned to the upper key on the keyboard and one letter is assigned to the lower key. Only one letter is assigned. In addition, 'w' and 'y' are specified so that all keys have two characters. And in Chinese, 'h' forms 'zh', 'ch', 'sh' strings pronounced along with 'z', 'c', 's' and so on. 'H' is easy to input and 'w' and 'y' have the characteristics of vowels. Therefore, as shown in FIG. 82C, 'u' and 'i' are respectively assigned to 'u' in the touch state. ',' i 'is input,' w ',' y 'may be input in the pressed state. In the keyboard structure shown in Fig. 82C, the arrangement of the vowels may be arranged in the fourth row or the third row. In the case of the touch keypad of the present invention, since the virtual keyboard is not printed on the keypad, the keyboard layout shown in FIG. 82C can be left-right symmetrical for left-handed use. In the Japanese case of FIG. Since the user is memorizing, only the left and right vowel groups can be symmetrically moved.

83 is an exemplary diagram of a virtual keyboard musical instrument implementation using a touchpad capable of distinguishing a pressed state from a touched state. 83A shows an example in which a checkerboard-shaped elastic body is attached to a touch pad so as to be 1: 1 symmetric with a keyboard of a virtual keyboard musical instrument, and a dark portion is a structure arranged to correspond to a musical scale C having 35 keys. It belongs to a virtual keyboard instrument. However, as shown in FIG. 83B, three lines corresponding to C, D, and E, F, G, A, and the like are substantially used to increase recognition of the user's finger movements and the piano keyboard having a whole tone or semitone relationship. B A virtual keyboard instrument with 25 keys set with only four keys. 83C and 83D illustrate a method of operating a virtual keyboard musical instrument for generating a sound, and FIG. 83E shows a musical arrangement of a virtual keyboard according to a scale (C major, A major) of the virtual keyboard musical instrument, and FIG. 83F Shows the virtual keyboard display using the score indicating the position of the note.

84 is a view illustrating operation of a pan mode / multimedia mode in addition to a general pointing mode by double tapping or tapping in a pointing mode using a touchpad that distinguishes a touch state from a pressed state of the present invention. have. The operation of the fan mode is necessary because the touchpad must be in charge of the function buttons of the touchpad to operate the portable device with one hand. In the present invention, the fan mode is switched from the normal pointing mode by tapping the touch pad. If single tapping is responsible for the menu expansion function of the right function button of the conventional touch pad, double tapping is performed in the pointing mode. It will be in charge of the conversion to fan mode, but these tapping / double tapping functions can be switched to each other according to the user's convenience. FIG. 84A schematically illustrates a pointing mode / fan mode conversion process by double tapping, and FIG. 84B is a double tapping mode to change from the pointing mode I to the pan mode II, thereby indicating the shape of the pointer. It is divided into a pointer 8201 and a pointer 8402 of the fan function, so that the user can recognize the change of mode. As shown in FIG. 84B (II), when the conversion to the fan mode is performed, the screen also moves in the moving direction of the pointer as shown in FIG. 84B (III). In other words, the movement of the finger on the touch pad causes the movement of the screen. 84C illustrates that when a drag operation is performed in the pan mode, an area corresponding to a rectangular size (red area of FIG. 84C (II)) formed by dragging is zoomed in to enlarge an enlarged screen as shown in FIG. 84C (III). Will be shown. In this case, the touch pad operation for the drag operation may be performed using the methods described with reference to FIGS. 71A and 71B. The zoom-in and the zoom-out are divided according to the drag direction. If the drag direction is made from the upper left to the lower right as shown in FIG. 84C (II), the zoom-in is zoomed out. in) When the screen is displayed, on the contrary, if the drag direction is made from the lower right side to the upper left side, the zoom-out screen is shown, and the screen is naturally enlarged and reduced. In the case of zooming out, if the area currently displayed on the screen is reduced in the rectangle formed by dragging, the user's perception of the zoom out ratio is easily set. In other words, like zoom-in, zoom-out may have a smaller reduction ratio when the drag area is smaller and a smaller reduction ratio when the drag area is larger. For convenience of the user, the zoom in and zoom out directions may be interchanged. However, in the fan mode shown in FIG. 84B, even if the pointer movement is performed when the drag operation is started, if the screen movement is automatically stopped, the movement of the pointer is pressed in the drag operation. It is possible to distinguish between the pan operation and the zoom operation according to whether the operation is started in the state or the touch state. In addition, in the zoom operation, the movement of the upper left-> right lower side may be replaced with the movement of the upper right-> left lower to distinguish left and right handles.

FIG. 85 illustrates a method of processing capacitance change to enable multi-touch of a touch pad having a single touch function. In brief, the touch pad calculates a change in capacitance generated by a finger in a touch state at a noise level and uses only a change in capacitance generated by a finger approaching a pressed state. FIG. 85A illustrates a portion of Miller et al. Illustrating a noise removing method in US Pat. No. 5,374,787. The capacitance value obtained by the capacitive sensor terminals X1 to X15 when the finger touches the touchpad is illustrated (8501 in FIG. 85A). Subtracting the minimum value (denoted as 'Minimum Level Detected' in FIG. 85A) from the value obtained at each sensor terminal, yields only the change in capacitance caused by the finger touching the pure touchpad (8502 in FIG. 85A) To calculate the location. The noise reduction method is applied to the touch pad of the present invention which distinguishes the touch state from the pressed state shown in FIG. 49, and the maximum value obtained in the touch state is set as the reference point (the amount of change in capacitance is set to '0'). When the capacitance change value is all converted to '0', only the capacitance change value of the finger that reaches the pressed state is used to calculate the finger position. In other words, only the position of the finger reaching the pressed state among these fingers is calculated and transmitted as the position data regardless of whether multiple fingers simultaneously touch the touch pad. When the finger is in the touch state as shown in 8507 of FIG. 85C, the value obtained at the capacitive sensor terminal will have the same distribution as that of 8503 of FIG. 85B. If two fingers are touch pads at the same time as shown in 8508 and 8509 of FIG. When the left thumb reaches the pressed state, the value obtained at the capacitive sensor terminal will be obtained as shown in 8504 and 8505 of FIG. 85B. If the capacitance distribution of the touch pad is performed as shown in FIG. 85A in this state, the position coordinates of the touch pad calculated by the touch pad are calculated by summing two capacitance distributions 8504 and 8505 together. Will be calculated. In this case, the calculated finger position represents the average value of the position close to the position of the finger that has reached the pressed state among the fingers touching the touch pad. If the change of capacitance generated by the touched finger is considerably smaller than that of the pressed state, this average value is close to the position of the pressed finger, so that the single-touch touch pad can be used as the multi-touch touch pad. Can be. However, a method for removing the error caused by the average value is shown in FIG. 85B. Using the Maximum Level Detected for Touch as a reference point, as shown by the 8505, subtracting this value from the values obtained at all sensor terminals, only the change in capacitance caused by the finger in the depressed state Is calculated and its distribution is obtained as 8506. That is, the change in capacitance caused by the finger in the contact state is treated as noise. In this case, the finger is actually in a state such as 8508 and 8509 of FIG. 85C, but the finger position calculated by the touch pad is confirmed to be in a touch state (strictly pressed state) only by one finger as in 8510. The touchpad with the single touch function applied with this method can be used with both hands as in the keypad mobile phone. In case of using only one finger using both normal touch and pressed state, the noise canceling method shown in 8501 and 8502 is applied, and several fingers touch the touchpad at the same time, and the character input is performed by pressing one finger. The noise reduction method shown in 8504 and 8506 can be applied. The maximum change in capacitance shown in 8504 may be set by each user during initialization of the touch pad of FIG. 47. However, if the noise elimination reference value shown in FIG. 85 is obtained from each sensor, the pressure value Z of FIG. 47 corresponds to the sum of the values measured by each sensor terminal shown in FIG. That's a number.

FIG. 86 is a view illustrating a model of a touch keypad in which a character keypad and a moving keypad of a numeric area of a conventional keypad mobile phone shown in FIG. 1 are combined when using a touchpad input device that distinguishes a pressed state from a touch state. In the case of Fig. 86A (I), the keypad is fixed on the mobile phone screen. In Fig. 86A (II), the keypad is slid down from the screen. 86A (III) shows an example in which the keypad is used in the landscape mode while the keypad is slid open. FIG. 86B illustrates that, unlike FIG. 86A, the thickness of the sliding keypad portion is the same as the thickness of the rest of the mobile phone body.

FIG. 87 illustrates a method for 1: 1 correspondence between a screen and a touch pad in order to perform a pointing operation by an absolute coordinate system, unlike a touch pad generally used in a notebook computer.

Claims (114)

The method of controlling the pointer position change by the finger displacement (ΔX, △ Y) using the touch pad and the pointer control method of determining the position of the pointer by the position coordinates (X, Y) of the finger on the touch pad All used touch pad pointing devices and portable small digital devices such as mobile phones, electronic dictionaries and PDAs The touch pad input device of claim 1, wherein the push switch is disposed under the touch pad to perform a function of a command execution button. Input device to replace the function of the push switch by using the change in the pressure applied to the touch pad in claim 2 as a push switch An input device in which a separate switch is disposed in the horizontal corner of the rear side of the digital device to replace the push switch located under the touch pad in claim 2. Digital device having a virtual keyboard program for character input in claim 1 and having a virtual keyboard coordinate system of 1: 1 correspondence with touch pad coordinate system The touch pad input device of claim 5, wherein the touch pad input device has a reference point such as at least one or more small protrusions or grooves or lattice irregularities that a finger can recognize on the surface of the touch pad and associates with a specific position of the virtual keyboard. The touch pad input device having a calibration program of a touch pad coordinate system to associate a reference point with a specific position of the virtual keyboard of claim 6. Portable small digital device having two touch pads as a pointing device in claim 1 In the digital device of claim 8, a virtual keyboard for character input is divided into left and right windows, and a character input pointer is disposed in each window, and these character input pointers are independently operated by a left and right touch pad. Character input error correction program using the push threshold pressure to correct the position of the finger from the target point when the push switch is operated in claim 2 Portable small digital device using a virtual keyboard having three columns Small digital electronic device that enables operation by only the hand held in the state of holding with one hand in claim 1 In the case where the small electronic device of claim 12 is a mobile phone, the GUI system has a function of automatically releasing a virtual keypad on the screen to operate a telephone call function when the mobile phone is operated in the portrait view mode. Claim 3 to operate the button function for performing the command in the touch operation and the touch operation generated in the touch operation for the pointing operation by using the insulator of the touched portion of the touch pad to enlarge the size of the pressing pressure How to have a single pressing reference pressure in the whole area of the touch pad by making it possible to distinguish the difference in pressing pressure generated in pressing operation Portable digital apparatus using the method of claim 14 In the case of the touch screen method in which the transparent touch pad is disposed on the screen, the elastic body is attached to the touch pad so that the operation method of the touch pad is implemented, so that the general touch screen method and the touch pad method having the pressed state of the present invention are simultaneously utilized. Portable digital device A portable digital device in which a transparent elastic body is attached to a touch pad for use in a portable digital device of claim 16. In the case of claim 16, when the elastic body is opaque, a digital device that cuts out the corresponding area of the elastic body so that the user can see the screen content of the touch screen area 17. A method of additionally indicating a pointer position display window together with a key located in an area other than the virtual keyboard to show the position of a pointer (cursor) on a virtual keyboard of a digital device. Portable small digital device using a function button function by tapping the function button of the touch pad in claim 1 The digital device of claim 5, wherein the virtual keyboard has three columns and has a non-linear correspondence in which the areas of the virtual keyboard coordinate system corresponding to each column and the touch pad coordinate system are not equal to each other. The method of claim 5, wherein the space and the backspace are replaced by left and right movements of the finger on the touch pad without using the keys of the virtual keyboard. Streamlined and wireless touch pad pointing device having a separate form from the portable small digital device of claim 1 is not integral In claim 5, the virtual keyboard has a structure of three rows and five columns, and two letters are assigned to each key, and a digital device having an additional auxiliary function button for selecting one of these two letters in addition to the function buttons of the touch pad. The method of claim 5, wherein the virtual keyboard has a structure of three rows and five columns, two letters are assigned to each key, and two function buttons perform respective letter input execution commands to input the letters assigned to each key. Digital apparatus to which the character input method applied in claim 25 is applied The touch pad used as a pointing device in claim 1 recognizes a change in the position of an object, in particular a finger, such as a method using a change in capacitance, a method using a change in resistance value, and a method using a high frequency. Touchpad capable of calculating In claim 5, the virtual keypad has a five-row, three-column key arrangement so that two keys can be assigned to each key so that one of the two letters assigned to each key can be selected according to the number of pressing of each key. Way Portable digital device to which the character input method of claim 28 is applied According to claim 3, in order to apply different touch pressures and pressing pressures according to the touch pad area by the pressure sensing method of the touch pad, a unique touch pressure and a pressing pressure is applied to the touch pad by specifying a unique touch pressure for each area corresponding to each key. Input device for inputting characters by change of pressure Portable digital device to which the character input method of claim 30 is applied The method of claim 5, wherein the coordinates of the virtual keyboard correspond to the reference point on the screen of the digital device when the user's finger touches the reference point on the touch pad. To calibrate Portable digital apparatus to which the method of claim 32 is applied The character input method of claim 28, wherein when a user leaves his or her finger from the touch pad and leaves the touch pad area corresponding to a character to be input and returns to the area, a new character input is started. Method of attaching to the touch pad by implementing a reference point having a concave-convex shape on the film of 0.5mm ~ 3mm thickness having a form that can be attached to the surface of the touch pad, or in a label form to a plurality of reference points of the touch pad The case of claim 35 wherein the material of the membrane is a plastic that is easy to implement irregularities The method of claim 2, wherein the function of the push switch is replaced with the touch pad of the finger to execute a command corresponding to the position of the pointer when the finger is disconnected. In a portable digital device having a character input method using a virtual keyboard, when a finger makes contact with the screen, a key corresponding to the contact area is activated to arrange a plurality of characters assigned to the active key in up, down, left and right directions, A character corresponding to the point where the center of the finger stays is selected among the plurality of extended characters while the finger is in contact with the touch pad, and the input of the character is performed when the finger is in contact with the screen. In the case where a plurality of characters are specified in the activation key according to claim 38, the keys activated at the point of contact with the screen for selecting and entering these characters are fixed until the contact with the screen of the finger is finished and the activation key of the finger How to move left and right from position to select one of the characters specified in the activation key A method of inputting a reference character when contact with the screen ends while the finger maintains the position of the active key by setting a key-point character among a plurality of characters assigned to each key in claim 39. A non-key-point character other than a key-point character is designated in the left and right regions of the activation key so that each non-reference character is changed when the finger deviates from the position of the activation key. When the contact with the screen is terminated at the point where the finger is out of the position of the activation key, the non-reference character is set to the left if the position of the finger is to the left of the activation key, and set to the right if the position of the finger is to the right of the activation key. How to enter nonstandard characters 41. If the activation key is located at the left edge or the right edge of the virtual keyboard, the non-reference characters are divided into areas corresponding to the number of non-reference characters except for the activation key and displayed on the keys of the virtual keyboard. Arrange in order and when the contact with the screen is terminated with the finger located in the divided area, how to enter the specified character at that position A method of displaying a satellite window for a pointer indicating a position of a reference character and a non-reference character in an area other than the virtual keyboard of claim 41. In claim 41, the non-reference character is designated in the upper and lower regions of the activation key by specifying the non-reference character in the area where the non-reference character is assigned to activate the non-reference character as the finger moves up and down from the active key position, and the corresponding character when the finger is separated from the touch pad. How to enter The method of claim 38, wherein the finger contacts the touch pad or the touch screen by adding additional functions, such as the main direction for arranging the characters designated in the activation key and the pitch determination or the change to the similar pitch in the direction perpendicular to the main direction (branch direction). To move the main direction from the state to the branching direction A method of arranging a plurality of characters assigned to an activation key in two directions in claim 39 In the case of the Korean vowel in claim 46, the vowel is assigned to three keys, and each method comprises:; '유사, ㅗ' is assigned to the key 'ㅏ' and 'ㅗ' similar characters' ㅏ, ㅑ, ㅐ, ㅒ, ㅗ, ㅛ ', and' ㅓ 'and' A keyboard layout method in which the pseudo characters ㅏ, ㅑ, ㅐ, ㅒ, ㅗ, ㅛ 'are assigned, and' ㅡ ',' ㅣ ',' ㅢ 'are assigned to the remaining keys. In the case of the mobile phone having a virtual keypad structure of the T9 type in claim 47, vowel characters are arranged on the number keys '1', '2', and '3', and the vowel groups 'ㅡ, ㅣ, and ㅢ' are assigned to the '2' key. The vowel groups 3, 모음, ㅐ, ㅒ, ㅗ, ㅛ and ㅏ, ㅑ, ㅐ, ㅒ, ㅗ, ㅛ are assigned to the '1' and '3' keys. However, vowels assigned to '2' key are arranged left and right with 'ㅣ' as reference character, whereas vowels assigned to '1' and '3' keys have 'ㅏ ㅗㅛ' and 'ㅓ' as reference characters. ',' TT ㅠㅓ 'arranged left and right, and the remaining' 하고 ',' ㅕ ㅔ ㅖ 'arranged in the vertical direction In claim 48, the vowel groups designated by the '1' key and the '3' key are interchanged so that the vowel arrangement in the vertical direction is the same, but the vowel character arrangement in the left and right directions is reversed ('ㅏ ㅗㅛ'-> 'ㅛ ㅗㅏ', 'ㅠㅜ ㅓ'-> 'ㅓ ㅜㅠ') In the case of Chinese, in the case of Chinese, the consonants used for consonants and the consonants used for species (n, ng, r) are distinguished, and vowels are used as consonants and paired with these species (n, ng, r) and converted into Chinese characters. Character string that further includes "" "as a consonant to distinguish whether the consonant entered in front of the vowel is a final or initial consonant so that the same Pinyin-> Hanja conversion is performed automatically like a normal computer keyboard. Keyboard layout; '1'key->'bpmf','dt' on '2' key, 'zscr' on '3' key, 'jqx' on '4' key, 'gkh' on '5' key, '6' key 'Yw' on '7' key, 'a i' on '8' key, 'o u' on '8' key, 'e' on '9' key

Keyboard layout method that assigns 'n ng r' to '0' key and arranges the characters assigned to each key in the vertical direction In the case of 'zscr' designated in the '3' key in Claim 50, the finger movements have a main direction in the vertical direction and a branching direction in the left and right directions perpendicular thereto, and the finger movement in the branching direction following the main direction is selected by the main direction. Character input method to add 'h' to character The method according to claim 50, wherein the vowels are inputted corresponding to the personality of each vowel character when the circumferential direction of the finger movement is connected to the vertical direction in addition to the left and right directions. The vowel corresponding to the vowel corresponding to the vowel according to claim 52 corresponds to three stars among the four stars and the four stars when the finger moves with the lower key of the selected key in turn when the finger moves over the key. How characters enter 50. A keyboard arrangement method in which the direction of the arrangement of the letters assigned to each key is left and right. In particular, the 'n ng r' assigned to the '0' key is arranged left and right with 'ng' as a reference character. In the case of Japanese, in the case of Japanese, the character group representing the fifty digit is arranged as follows in each letter group corresponding to aeiou as '1' to '0', and '1'-> 'あ い う え お', '2' -> 'Kakikukeko', '3'-> 'Sashisuse そ', '4'-> 'Tachitsuteto', '5'-> 'Nani ぬ ね の', '6'-> 'は ひ ふへ ほ ',' 7 '->' ま み む め も ', 8'-> 'や ゆ よ', '9'-> 'ら り る れ ろ', '0'-> 'わ を ん' The character assigned to each key Arrangement method to arrange the up and down direction In the case of か, さ, た, and は group, the movement of the finger movement in the main direction (up and down direction) and the branching direction (left and right directions) is performed. Keyboard layout method to input as follows; 'か (き く け こ)'-> 'が (ぎ ぐ げ ご)', 'さ (し す せ そ)'-> 'ざ (じ ず ぜ ぞ)', 'た (ち つ て と)'-> 'だ (ぢ づ で ど)', 'は (ひ ふ へ ほ)'-> 'ば (び ぶ べ ぼ)'-> 'ぱ (ぴ ぷ ぺ ぽ)' When two characters are assigned to a virtual keypad or a key on the virtual keyboard, the input of the reference character is input when the fingers are separated from the contact state corresponding to the designated key, and the non-reference character is the touch pad or touch when the finger is outside the designated key area. How to input when the contact with screen is broken When the touch pad or touch screen has a function of distinguishing the contact state from the pressed state The input of the reference character among the plurality of characters assigned to the keys on the virtual keypad or the virtual keyboard is input when the finger is separated from the contact state corresponding to the designated key. The remaining non-reference characters are entered in order according to the number of times the pressing state is repeated before the fingers are spaced apart. When the area of each of the virtually divided keys of the virtual keyboard or the virtual keypad is activated by touching a finger, the area of the touch pad or touch screen corresponding to the active key is enlarged so that the key area that can be actually touched is expanded. 60. In the case of claim 59, when the shape of each key is a rectangle, the ratio of the length of the enlarged activation key to the length of one side of the active area is less than twice. To increase the activation key area by 50% more finger movement paths to activate neighboring keys How to use the pressed state as the button-down state of the function button on the touchpad that distinguishes the contact state from the pressed state The method of claim 61, wherein the click operation is terminated within the reference time, and the click operation is performed. The method of claim 62, wherein in some regions (inactive regions) of the touch pad, a change is not made in the button-down state even when the touch-on state is changed from the touch-on state to the touch-off state. 63. The method of claim 62, wherein the contact state and the pressing state is made by using the on / off state of the mechanical button switch on the bottom or the top of the touch pad, but the button switch is switched from the on state to the off state, but the finger touches the touch pad. How to execute a button-hold state while maintaining contact 66. The method of claim 63, wherein the non-active area is variably applied to facilitate the user's finger movement. In claim 61, the pressing pressure thresholds for defining the touch state and the pressing state are divided into two types, respectively, and the pressing pressure threshold value Z required for switching from the touch-off state to the touch-on state. _touch ) is set to be larger than the pressing pressure threshold (Z _detouch ) when the touch-on state is changed from the touch-on state to the touch-off state. When pressing the threshold value (Z _depress ) necessary to switch to the depressed state, it is set to be larger than the pressing pressure threshold value (Z _{press - up} ) when switching from the depressed state to the touch-on state. Way The method of claim 66, wherein the pressing pressure buffer values Z _touch (Z _touch -Z _detouch ) and Δ Z _depress (Z _depress -Z _{press - up} ) are respectively 10% or more of Z _touch and Z _depress . In the method of attaching the elastic body to the finger contact surface of the touch pad as a method of implementing a touch pad that distinguishes the contact state from the pressed state, in order to facilitate character input, the elastic body may be divided into areas corresponding to each key of the virtual keyboard or the virtual keypad. How to divide by tiles 70. The method of claim 68, wherein the shape of the area corresponding to each key is square, rhombic, round, oval, and a valley is formed between the respective areas so that the vestibular capacity is concentrated on each key when a finger touches the elastic body. The method of claim 69, wherein the widths of the valleys existing between the elastic body regions corresponding to the keys of the virtual keyboard or the virtual keypad are respectively 50% or less of the width and width of the elastic body. 67. The method of claim 66, when the pressing pressure exceeds the pressing state threshold (Z _depress ) to reach the pressing state, even if there is a finger movement, the position of the pointer is fixed to the position that reaches the pressing state threshold and returns to the touch state. How can movement become possible? In the case of general touch pad or touch screen which cannot be distinguished between pressed state and touch state, the method of performing button-down maintenance of the function button by tapping & touching of the touch pad 80. The method of claim 72 wherein a release of the buttondown state is to be effected in the first tapping action that occurs after tapping & touch. In the case of Japanese, the arrangement of pronunciations assigned to each key is arranged left and right in the case of Japanese The method of claim 38, wherein a new key is activated and a plurality of characters assigned to the new activation key are expanded and arranged on the screen by a pressing operation following a movement of a finger. A method of using a touch pad in which a switch of a touch pad for distinguishing a touch state from a pressed state is located in an area corresponding to each key of a virtual keyboard rather than the entire area of the touch pad The method of claim 58, wherein the switch of the touch pad that distinguishes the touch state from the pressed state is located in an area corresponding to each key of the virtual keyboard instead of the entire area of the touch pad. A method for implementing a function button on / off state by dividing the pressing pressure value using an elastic body in a capacitive touch pad having a multi-contact function In the method of claim 55, a reference character is assigned to each activation key and the remaining four characters are left-right symmetrical to the primary key of the activation key, and five characters including the reference character are arranged in order from top to bottom. Arrange in order from top to bottom in symmetry 79. A method according to claim 79 wherein a new group of characters is arranged when an active key is pressed and then restored to a touch state The method of claim 58, wherein the number of columns of the virtual keyboard is set to 5 to 7 to separate consonants and vowels by collecting only vowels in one column. The release of a button-down state in claim 62 is only made if the change leading to the pressed state-> touch state-> touch-off state is made within the reference time (t _t °). How to keep button-down state when it is longer than standard time The method of claim 68, wherein a hole is formed in the center of the elastic body located in the divided area of the touch pad corresponding to each key area of the virtual keyboard, and the light penetrating the touch pad through the hole illuminates the touched surface. 84. The apparatus of claim 83, wherein each partition of the touchpad is provided with a light having a different color or an on / off opposite light so that the active key and the x-coordinate are the same or the y-coordinate is distinguished from the lighting of the other partition. To check the activation key on the virtual keyboard 84. The apparatus of claim 83, wherein the light sources representing the rows and columns of the virtual keyboard are disposed at the same line as each of the rows and columns in the touch pad outer region, and the illumination of the light sources representing the rows and columns corresponding to the active keys of the virtual keyboard is provided. To identify the activation key on the virtual keyboard by changing the color of the rest of the light source or by providing a light that is on / off opposite. How to use the virtual keyboard as a virtual keyboard instrument using a touchpad to distinguish between pressed state and touch state The method of claim 86, wherein one reference sound is applied to each key of the virtual keyboard, and when a finger touches an area of a touch pad corresponding to each key, information related to one reference sound is assigned to all keys. 87. The method of claim 87, wherein the generation of the reference sound assigned to the key of the virtual keyboard is completed when the touch pad area corresponding to the key is pressed. 87. The method of claim 87, wherein the generation of a sound having a difference in semitones from the reference sound is made by moving to a neighboring area while a finger touching a key is touched. In the case of a note higher than the reference sound, the finger touches a key corresponding to the reference sound when the finger moves to the upper side of the virtual keyboard, and when the sound is lower than the reference sound, the finger moves toward the lower side of the virtual keyboard. How The chord code associated with the reference sound is generated by selecting a chord code assigned to a key corresponding to the partition by moving and pressing a finger staying in the touch pad partition corresponding to the reference sound to the left and right partitions. How to let The method of claim 87, wherein the tone is changed according to the distance moved when there is additional left and right movement at the position of the finger where the sound is generated. The method of claim 14, wherein the elastic body includes an air layer, and the area of the air layer is reduced, accompanied by an increase in permittivity, thereby amplifying the difference between the touch pressure and the press pressure. 93. A method of using a structure in which an air layer is uniformly distributed within an elastomer, such as a polyurethane foam sponge. 93. A method of using a form in which an air layer is structurally separated in the elastic body such as a rubber dome switch and the air layer region is reduced by deformation of the elastic body in a pressed state. 97. A method in which a non-elastic material is used in place of an elastic body and the reduction in the area of the air layer uses a structure in which the finger is penetrated into the air layer rather than a change in the shape of the elastic body. 88. The method of designating a reference sound assigned to each key in accordance with the change of a pair in accordance with a change in a pair of musical notes, that is, a note located in C on a sheet of music, such as A major, has a pitch corresponding to C #. To make the C key in C # have a reference sound In the case of digital keyboard instruments whose pitch can be changed to apply the method of claim 97, a black key is inserted between the B key and the C key, and between the E and F keys, so that the white keys are the basic sound of all pairs regardless of the major or minor. How to have The method of claim 61, wherein the tapping operation is to perform a function (menu extension function) of a right function button of a general touch pad. 62. The method of claim 61, wherein the pointing mode is extended into a general pointing mode and a fan mode, and the mutual conversion is performed by a double tapping operation. A method of causing the functions of tapping and double tapping to switch between in claims 99 and 100 In the case of the fan mode of claim 100, the method moves the screen simultaneously with the movement of the pointer. A drag operation in a pan mode of claim 100 causes a zoom operation to occur The method of claim 103, wherein when the drag operation starts from the upper left and ends at the lower right side than the starting point, the area where the starting point and the ending point are formed is enlarged. 104. The method of claim 104, wherein when the start point and the end point are changed, the method reduces the ratio according to the ratio of the area of the rectangular rectangle formed from the start point and the end point to the area of the entire screen, and consequently zooms out. Method according to claim 1, wherein the conversion to a pointer control method by finger coordinates for character input is performed by tapping or double tapping 62. A method of implementing a double-click operation when the pressing state is repeated twice within a certain time. 62. The method of implementing a click operation according to claim 62, wherein if the touch state continues after the end of the pressed state, the button-down state is maintained, and the switching to the button-up state is performed by a click action occurring in the button-down state. 62. If the switching from the pressed state to the touch state is made within the reference time, the click function is given, and if the switching from the pressed state to the touch state to the touch-off state is performed within the reference time, How to give another feature A method for providing a menu extension function when the pressing state becomes longer than the reference time in claim 62 109. A method for providing a menu extension function when a process of switching from a pressed state to a touch state to a touch-off state occurs within a reference time; Claims 110 and 111 provide a function of switching from a pointing mode to a text input mode by tapping the touch pad (operation in which the touch-off-> touch-> touch-off process is performed within a reference time), and touching-off-> touch- within a reference time. When touch-to-touch (tap & touch) operation is performed, the method of providing mutual switching function to the pointing mode &lt;-&gt; The method of claim 14, wherein the maximum capacitance change value of the touch pad sensor terminal generated in the touch state is set as a base, and the smaller capacitance change value is set to '0'. A method of calculating the position of a finger only in a pressed state using the noise canceling method of claim 113

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