KR100556577B1 - The keypad of a double sensor for a portable terminal - Google Patents

Abstract

The present invention relates to a portable terminal having a keypad composed of a double sensor, more specifically, when inputting a number such as a phone number, it is possible to recognize the number to be input by the user's body contact without looking at the keypad only liquid crystal It is convenient to use because it can be viewed and input, and even if the keypad of the portable terminal cannot be identified, a desired number can be entered without a wrong input, and the user can move or select various additional services provided by the portable terminal. It relates to a portable terminal having a keypad composed of a dual sensor enabled by.

The present invention is to generate a body contact detection signal by detecting the contact of the body, the touch sensor keypad 110 with the touch sensor key buttons are displayed and arranged in combination of numbers, letters, figures or special characters, the touch sensor As the key buttons having the same arrangement structure as the key buttons of the keypad 110, the pressure sensor keypad 120 for generating a body pressure detection signal by detecting the pressing of a predetermined pressure or more is the touch sensor keypad 110 The dual sensing signal input unit 100 is configured to be stacked on the bottom of the), the drive key 300 for driving the touch sensor keypad 110 of the dual sensing signal input unit 100, and the double sensing signal input unit 100 The body contact detection signal and the body pressure detection signal are input from the touch panel, and the input body contact detection signal and the body pressure detection signal are input to the touch-on signal, the touch-off signal, and the push-down of the corresponding key button. The number of key buttons corresponding to each signal is received by the sensing signal reader 200 for converting the signal and the touch-on signal, the touch-off signal, and the push signal input from the sensing signal reader 200. 500), but if the touch-on signal is controlled so that the number of the corresponding key button is displayed as a provisional display, and if the touch-off signal is controlled to delete the previous number displayed as a provisional display, the push signal In this case, the control unit 600 controls to display the number of the corresponding key button in the confirmation display.

Handheld terminal, keypad, key button, touch sensor, pressure sensor, body contact

Description

The keypad of a double sensor for a portable terminal}

1 is a view showing a character input device of a portable terminal using a conventional sensor,

2 is a block diagram showing a system of a text input device of a portable terminal using a conventional sensor;

3 is a block diagram showing a system of a portable terminal having a keypad composed of a dual sensor of the present invention;

4 is a diagram illustrating a direction in which a portable terminal is continuously touched by a portable terminal in a selection mode or a mobile mode of a portable terminal according to an embodiment of the present invention.

<Code Description of Main Parts of Drawing>

100: double detection signal input unit 110: touch sensor keypad

120: pressure sensor keypad 200: detection signal reader

300: drive key 400: memory

500: liquid crystal unit 600: control unit

The present invention relates to a portable terminal having a keypad composed of a dual sensor, and more particularly, to enable the input of a number such as a telephone number by the user's physical contact, and even where the identification of the keypad provided in the portable terminal is impossible. The present invention relates to a portable terminal having a keypad composed of a dual sensor that can input a desired number without a wrong input and enable movement or selection of various additional services provided by the portable terminal by a user's physical contact.

Recently, due to the development of mobile communication service technology, personal mobile communication devices are also diversifying, such as mobile phones, PDAs (Personal Digital Assistants) or car navigation, and also provide basic services of individual mobile communication devices. In addition, it is developing into a trend of providing various additional services.

In order to use the basic services or additional services of the personal mobile communication device described above, the user operates a keypad composed of various key buttons arranged with numbers, letters, figures, and special characters mounted on the main body of the personal mobile communication device. The service is available.

The operation of the keypad will be described using the keypad mounted on the mobile phone. On the keypad mounted on the mobile phone, a plurality of key buttons having a dome shape, which is filled with silicon and protrudes a predetermined height, are arranged at predetermined intervals. As the key button moves downward, the conductive material formed on the bottom of the corresponding key button contacts the sensing line, so that the controller detects the contact signal to enable the input of various data.

However, the various key buttons provided in the conventional keypad are arranged with a certain number of alphabets (including English) along with numbers, figures, and special characters. Eliminate the problem of pressing the corresponding key button repeatedly until the desired letter is selected by the registered "Character input device of portable terminal using sensor" (application number; 20-2002-0031366). It became.

1 and 2, a character input device of a portable terminal using a conventional sensor includes a predetermined number of sensor keys 1, 2, 3, and 4 respectively positioned between each number button on the keypad 10 of the portable terminal. , 5, 6, 7 comprises a touch sensor unit 20 for recognizing whether the user's finger touches; A touch sensing unit (30) for sensing whether each key is touched from the touch sensor unit (20) and the order of touching; A character storage unit (50, 60) for storing character expressions that can be expressed in a shape similar to the actual character by touching the touch sensor unit (20); And a control unit 40 for outputting a matched character expression to the outside by comparing the detection result of the touch sensing unit 30 with the character expression stored in the character storage units 50 and 60. When a finger touches each sensor key (1, 2, 3, 4, 5, 6, 7) provided on the keypad 10 of the portable terminal sequentially in the order of initial, neutral, and final shape of the shape of the letter, The sensor keys 1, 2, 3, 4, 5, 6, and 7 recognize this in the order in which the fingers are in contact, and the touch sensing unit 30 receives the contacted state and detects the order.

As described above, when the touch sensing unit 30 inputs the detected touch signals in a series of contact order to the control unit 40, the control unit 40 sets the input contact signals to the Korean character storage unit 50 (in English). , By matching with the English character storage unit 60 and outputting a matching character expression through the liquid crystal display device 70.

However, since the text input device of the portable terminal using the conventional sensor can be input through the touch sensor key, it is limited to Korean or English, the same number as the phone number, which is the most basic and most used function of the mobile phone. In order to solve this problem, it is necessary to input each key button provided to solve this problem. In this case, the user alternates between the key buttons disposed on the keypad and the liquid crystal to input a number correctly without a wrong input. There is inconvenience in using it, and if you input a number such as a phone number in a place where the keypad of the portable terminal cannot be identified, the number displayed on each keypad cannot be recognized to prevent the incorrect input of numbers. There is no problem.

In addition, there is a problem in that the utilization of the touch sensor may not be maximized because it does not provide a complex function such as moving or selecting various additional services provided by the portable terminal using the touch sensor.

The present invention is to solve the problems of the prior art, an object of the present invention is to input by the user's physical contact without looking at the keypad when entering the number, such as a phone number which is a basic and frequently used function of the portable terminal It is convenient to use because it can recognize the numbers to be viewed, and it is convenient to use. Furthermore, it is a portable device with a keypad composed of dual sensors that can input the desired number without incorrect input even where the keypad provided in the portable terminal cannot be identified. In providing a terminal.

Another object of the present invention is to provide a portable terminal having a keypad composed of a dual sensor that enables the user to move or select various additional services provided by the portable terminal.

A portable terminal having a keypad composed of a dual sensor of the present invention for achieving the above object is to generate a body contact detection signal by detecting the contact of the body, the touch is displayed and arranged in combination of numbers, letters, figures or special characters A touch sensor keypad having sensor key buttons, and key buttons having the same arrangement structure as the key buttons of the touch sensor keypad, the pressure sensor keypad generating a body pressure detection signal by detecting pressing of a predetermined pressure or more. A dual sensing signal input unit configured to be stacked below the touch sensor keypad, a driving key for driving the touch sensor keypad of the dual sensing signal input unit, and a body contact sensing signal and a body pressure sensing signal from the dual sensing signal input unit. Receive the input body contact detection signal and body pressure detection signal A sensing signal reader for converting the touch-on signal, the touch-off signal, and the push signal of the key button, and a key corresponding to each signal by receiving the touch-on signal, the touch-off signal, and the push signal input from the sensing signal reader The number of buttons is controlled to be displayed on the liquid crystal part, but if the touch-on signal is controlled, the number of the corresponding key button is displayed as a provisional display, and if the touch-off signal is controlled, the previous number displayed as the provisional display is deleted. If the push signal, the control unit for controlling so that the number of the corresponding key button is displayed in the confirmation display.

The laminated structure between the touch sensor keypad and the pressure sensor keypad may include individual keys provided on the pressure sensor keypad displayed in the same combination as the individual key buttons displayed on the combination of numbers, letters, figures, or special characters provided on the touch sensor keypad. One-to-one correspondence with buttons.

The touch on signal is a signal generated when the user's body is in contact with the key button of the touch sensor keypad. The touch off signal is a signal generated when the body of the user who is in contact is separated from the key button of the touch sensor keypad. The push signal is a signal generated when a key button of a pressure sensor keypad, which is configured to be stacked one-to-one on a key button of the touch sensor keypad, is pressed when a key button of the touch sensor keypad that is being touched is pressed over a predetermined pressure.

The portable terminal having the keypad composed of the dual sensor has a sequence of key buttons continuously contacted with the body and the body continuously so as to select or move the corresponding additional service by the continuous body contact of the key buttons provided on the touch sensor keypad. The apparatus may further include a memory unit in which an additional service selection control signal or a movement control signal corresponding to the touched key buttons is stored. When at least three touch-on signals are sequentially input among the signals, a corresponding additional service is performed by matching a combination of numbers and special characters displayed on key buttons corresponding to the input three or more touch-on signals with the memory unit. Corresponding to the selected control signal or movement control signal And controls so that the selection or movement of the service.

Hereinafter, a configuration of an embodiment of the present invention will be described with reference to the accompanying drawings.

Figure 3 is a block diagram showing a system of a portable terminal having a keypad composed of a dual sensor of the present invention.

As shown, the portable terminal having a keypad composed of a dual sensor of the present invention

A touch sensor keypad 110 for generating a body touch detection signal by detecting a touch of a body and having touch sensor key buttons displayed and arranged in a combination of numbers, letters, figures, or special characters, and the touch sensor keypad 110. Key buttons having the same arrangement structure as the key buttons of the), the pressure sensor keypad 120 for generating a body pressure detection signal by detecting that the pressure is pressed over a predetermined pressure is the lower portion of the touch sensor keypad 110 The dual sensing signal input unit 100, which is configured to be stacked on the substrate, the driving key 300 for driving the touch sensor keypad 110 of the dual sensing signal input unit 100, and the body contact from the dual sensing signal input unit 100. The sensing signal and the body pressure sensing signal are input, and the input body contact sensing signal and the body pressure sensing signal are converted into the touch on signal, touch off signal, and push signal of the corresponding key button. The liquid crystal unit 500 receives the touch signal, the touch-on signal, the touch-off signal, and the push signal input from the detection signal reader 200 and the detection signal reader 200. Control to be displayed on the touch-on signal, but if the touch-on signal is controlled so that the number of the corresponding key button is displayed as a provisional display, if the touch-off signal is controlled to delete the previous number displayed as the provisional display, and corresponding to the push signal The control unit 600 controls to display the number of the key button to be displayed in the confirmation display.

The stacked structure between the touch sensor keypad 110 and the pressure sensor keypad 120 is displayed in the same combination as the individual key buttons displayed by a combination of numbers, letters, figures, or special characters provided in the touch sensor keypad 110. One-to-one correspondence with individual key buttons provided on the pressure sensor keypad 120 is provided.

The touch on signal is a signal generated when the user's body is in contact with the key button of the touch sensor keypad 110, and the touch off signal is separated from the key button of the touch sensor keypad 110 when the user's body is in contact. Is a signal generated when the push signal is pressed over a predetermined pressure when the key button of the touch sensor keypad 110 in contact, the pressure sensor keypad (one to one laminated on the key button of the touch sensor keypad 110 ( This signal is generated when the key button of 120 is pressed.

In addition, a portable terminal having a keypad composed of dual sensors has a sequence of key buttons continuously contacted with the body so that selection or movement of the corresponding additional service may be performed by continuous body contact of key buttons provided in the touch sensor keypad 110. The control unit 600 further includes a memory unit 400 in which an additional service selection control signal or a movement control signal corresponding to the key buttons continuously contacted with the body are stored. In the additional service selection mode or the movement mode, the controller 600 may detect the detection signal. When at least three touch-on signals are sequentially input from the touch-on signal and the touch-off signal input from the reader 200, a series of numbers displayed on key buttons corresponding to the three or more touch-on signals and Combinations of special characters are matched with the memory unit 400 to the selection control signal or the movement control signal of the corresponding additional service. Control to select or move a corresponding additional service.

The operation of the present invention configured as described above will be described in detail with reference to the accompanying drawings.

When the user inputs a number such as a phone number, the user can recognize the number to be input without looking at the keypad, and also inputs a number such as a phone number without a wrong input even when the keypad cannot be identified. First, the touch sensor keypad 110 is operated by operating the driving key 300 installed at one side of the main body of the portable terminal so that the user can input a number. Then, the telephone number to be input is "02-123-4567". In this case, when the user's body touches a key button marked “0” provided in the double sensing signal input unit 100, the touch sensor keypad 110, which is the upper layer of the dual sensing signal input unit 100 having a laminated structure, is touched. The finger touches a key button of) and the touch sensor keypad 110 generates a body contact detection signal corresponding to the touched key button, and inputs the generated body contact detection signal to the detection signal reading unit 200. All.

The detection signal reading unit 200 converts the input body contact detection signal into a touch-on signal of the corresponding key button, and inputs the converted touch-on signal to the controller 600. The controller 600 controls the number of the corresponding key button corresponding to the input touch-on signal to be displayed on the liquid crystal unit 500 as a provisional display.

At this time, the number of the corresponding key button displayed in the provisional display on the liquid crystal unit 500 may be displayed in a blinking manner, indicating a subscription state, not an input state yet.

Here, when the user presses the "*" key button or the "#" key button other than "0" by mistake, if the "*" or "#" is displayed in the liquid crystal part 500 as a provisional display, the user may select "*". To remove the finger touched by the "*" key button or the "#" key button to move the finger that is in contact with the "key" button or the "#" key button, press the "0" key button. Generates a body contact detection signal corresponding to the separated key button, and when the generated body contact detection signal is input to the detection signal reader 200, the detection signal reader 200 corresponds to the input body contact detection signal. The controller converts the touch button signal of the key button into the control unit 600.

The controller 600 controls the previous number displayed on the liquid crystal unit 500 to be deleted as a tentative display by the input touch-off signal, thereby deleting the number displayed as a tentative display on the liquid crystal unit 500, and the user When the "0" key button is pressed again, "0" is tentatively displayed on the liquid crystal unit 500 through the same process as the above-described process.

Through the above process, if the number displayed on the liquid crystal part 500 as a provisional display is correct by the number that the user wants to input, pressing the corresponding key button of the touch sensor keypad 110 in contact with a predetermined pressure or more, the The key button of the pressure sensor keypad 120 composed of one-to-one stacking with the corresponding key button of the touch sensor keypad 110 is pressed, the pressure sensor keypad 120 generates a body pressure detection signal corresponding to the pressed key button The input body pressure detection signal is input to the detection signal reader 200.

The sensing signal reading unit 200 converts the input body pressure sensing signal into a push signal of a corresponding key button, and inputs the converted push signal to the control unit 600. The controller 600 controls the number of the corresponding key button corresponding to the input push signal to be displayed on the liquid crystal unit 500 as a confirmation display.

At this time, the display method of the number of the corresponding key button displayed on the liquid crystal display 500 in the confirmation display indicates that the display method has been determined by the same method as that of the conventional portable terminal.

By repeating the above-described series of steps, the user can input the telephone number " 02-123-4567 " without a wrong input, and the same applies to the input of all other numbers.

In addition, the user can move and select various additional services provided by the portable terminal by physical contact. To this end, the user operates the touch sensor keypad 110 by operating the driving key 300 installed at one side of the main body of the portable terminal, and then touches a finger to the additional service using menu key button disposed on the keypad. The sensor keypad 110 generates a body contact detection signal corresponding to the touched key button and inputs it to the detection signal reading unit 200.

When the detection signal reading unit 200 converts the input body contact detection signal into a touch-on signal of the corresponding key button and inputs it to the controller 600, the control unit 600 corresponds to a key button corresponding to the input touch-on signal. A control screen is displayed on the liquid crystal unit 500 to determine whether to output a screen that can use various additional services to the liquid crystal unit 500. Here, the screen for confirming whether to use the additional service displayed on the liquid crystal unit 500 may be displayed as text or still image image.

When the user views the screen displayed on the liquid crystal unit 500 and the user wants to use an additional service, the user presses a corresponding key button of the touch sensor keypad 110 that is in contact with a predetermined pressure or more to correspond to the touch sensor keypad 110. By pressing a key button of the pressure sensor keypad 120 configured as a one-to-one stack with a key button, the controller 600 causes the liquid crystal unit 500 to display a screen displaying the additional service selection mode or the movement mode.

As described above, in the state in which the additional service selection mode or the mobile mode screen is output to the liquid crystal unit 500, when the key buttons arranged in the predetermined direction are continuously touched, the touch sensor keypad 110 is sequentially touched. A plurality of body contact detection signals are generated in a sequential order of the corresponding key buttons, and the generated plurality of body contact detection signals are input to the detection signal reading unit 200 in a sequential order.

The detection signal reading unit 200 converts the plurality of input body contact detection signals into the touch-on signals of the corresponding key buttons in sequential order, and inputs the plurality of touch-on signals converted in the sequential order to the controller 600. do. In this case, when the user's body is sequentially touched and separated from the key button, but the portable terminal is set to an additional service selection mode or a moving mode, only the touch-on signal converted by the detection signal reading unit 200 is sequentially controlled. Is programmed to be input.

The control unit 600 converts the number of key buttons corresponding to the plurality of touch-on signals converted in the input sequential order, and stores a combination of a series of numbers and special characters having the converted sequential order in the memory unit 400. Extracts a selection control signal or a movement control signal of a corresponding supplementary service and matches the selected supplementary service to a selection of the supplementary service or to move to the supplementary service. 500 is controlled.

That is, referring to FIG. 4, when the combination of a series of numbers and special characters having a converted sequential order is “3 → 6 → 9 → #” in the direction of P1, the control unit 600 moves the corresponding additional service. The signal is displayed by controlling the liquid crystal unit 500 to move to the received inbox as "go to received inbox".

As such, when the combination of the sequence of numbers and special characters having the converted sequential order is "1 → 2 → 3 → 6 → 9 → #" in the direction of P2, the additional service movement signal corresponding thereto is received. Go to inbox ", and the combination of numbers and special characters in the converted sequential order is" # → 9 → 6 → 3 "in the direction of P3, the corresponding additional service selection signal is" send message ". If the combination of the sequence of numbers and special characters having the converted sequential order is "* → 0 → # → 9 → 6 → 3" in the direction of P4, the corresponding additional service selection signal is "send picture message". ", And the combination of a sequence of numbers and special characters having a converted sequential order is " * → 7 → 4 → 1 " in the direction of P5, the corresponding additional service mobile signal is " recent call forwarding " , A sequence of numbers and features with a converted sequential order When the combination of the alphanumeric characters is "1 → 4 → 7 → *" in the direction of P6, the corresponding additional service shift signal is "recent number shift" and a series of numbers and special characters having a converted sequential order. If the combinations of P7 are "* → 0 → #" in the direction of P7, the corresponding additional service moving signal is "see next item", and the combination of a sequence of numbers and special characters having a converted sequential order In the case of the direction "# → 0 → *", the additional service movement signal corresponding thereto may be defined as "view previous item", etc., and the predetermined directions from P1 to P8 as described above are different from each other. It may be used for other purposes under mode or movement mode.

As described above, the present invention can see only the liquid crystal input because it is possible to recognize the number to be input by the user's physical contact without looking at the keypad for the input of the number, such as a phone number which is a basic and frequently used function of the portable terminal It can be convenient to use, even if the keypad of the portable terminal can not be identified where the desired number can be entered without a wrong input.

In addition, it provides an effect that can be moved or selected to a variety of additional services provided by the portable terminal by the user's physical contact.

Although the present invention has been described in detail only with respect to the described embodiments, it is obvious to those skilled in the art that modifications and variations can be made within the spirit and scope of the present invention, and such modifications or changes belong to the appended claims. will be.

Claims (4)

A touch sensor keypad 110 for generating a body touch detection signal by detecting a touch of a body and having touch sensor key buttons displayed and arranged in a combination of numbers, letters, figures, or special characters, and the touch sensor keypad 110. Key buttons having the same arrangement structure as the key buttons of the), the pressure sensor keypad 120 for generating a body pressure detection signal by detecting that the pressure is pressed over a predetermined pressure is the lower portion of the touch sensor keypad 110 A dual sensing signal input unit 100 configured to be stacked on The body contact detection signal and the body pressure detection signal are input from the dual detection signal input unit 100, and the input body contact detection signal and the body pressure detection signal are converted into a touch on signal, a touch off signal, and a push signal of the corresponding key button. And the detection signal reading unit 200, A dual sensor including a control unit for receiving a touch on signal, a touch off signal and a push signal input from the detection signal reader 200 to control the number of key buttons corresponding to each signal to be displayed on the liquid crystal unit 500. In a portable terminal having a keypad consisting of, Further comprising a driving key 300 for driving the touch sensor keypad 110 of the double detection signal input unit 100, The control unit 600 controls the number of the corresponding key button to be displayed as a provisional display in the case of the touch-on signal, and controls to delete the previous number displayed in the provisional display in the case of the touch-off signal, and in the case of the push signal. A portable terminal having a keypad consisting of a dual sensor, characterized in that the control to display the number of the corresponding key button is displayed in the confirmation display. According to claim 1, The laminated structure between the touch sensor keypad 110 and the pressure sensor keypad 120 is an individual key button displayed by a combination of numbers, letters, figures or special characters provided in the touch sensor keypad 110 Portable terminal having a keypad consisting of a dual sensor, characterized in that configured in one-to-one correspondence with the individual key buttons provided on the pressure sensor keypad 120 displayed in the same combination. According to claim 1, wherein the touch-on signal is a signal generated when the user's body is in contact with the key button of the touch sensor keypad 110, the touch-off signal is the body of the user who was in contact with the touch sensor keypad 110 A signal generated when the key button is separated from the key button, and the push signal is a pressure that is configured to be stacked one-to-one on the key button of the touch sensor keypad 110 when the key button of the touch sensor keypad 110 that is in contact is pressed over a predetermined pressure. Portable terminal having a keypad consisting of a dual sensor, characterized in that the signal generated when the key button of the sensor keypad 120 is pressed. The portable terminal according to any one of claims 1 to 3, wherein the portable terminal having the keypad configured as the dual sensor selects a corresponding additional service by continuous physical contact of key buttons provided in the touch sensor keypad 110, or The memory device 400 further includes a memory unit 400 in which the sequence of the key buttons continuously contacted with the body and the additional service selection control signal or the movement control signal corresponding to the consecutive physical contact key buttons are stored. In the mode or the moving mode, the control unit 600, if at least three touch-on signals are continuously input among the touch-on signal and the touch-off signal input from the detection signal reading unit 200, the three or more touch input The attached annex by matching the memory unit 400 with a combination of a series of numbers and special characters displayed on key buttons corresponding to an on signal. Source selection control signal or a portable terminal having a keypad consisting of a dual sensor, characterized in that the control so that the selection or movement of the supplementary service to the mobile by the control signals.

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