JP2013081179A - Portable terminal device, control method therefor and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable terminal device, a control method therefor and a program capable of improving operability with the use of pressure sensors.SOLUTION: A portable terminal device 100 includes: first and second pressure sensors 25A, 25B arranged on two opposing side surfaces 24A, 24B of a lower housing 20; and a CPU for calculating a difference value of pressures respectively applied to the first and second pressure sensors 25A, 25B, and controlling the state of the portable terminal device 100 on the basis of the difference value. The CPU determines a scroll direction on a liquid crystal display (LCD) 11 arranged on the front surface of a housing on the basis of the positive and negative of a difference value, and controlling a scroll speed on the basis of the largeness of the difference value. The CPU controls the selection of fast-forwarding or fast-rewinding reproduction and the speed of fast-forwarding or fast-rewinding concerning sound data or moving image data to be output by the portable terminal device 100 on the basis of the positive and negative and largeness of the difference value, and also controls the volume of the sound data.

Description

  The present invention relates to a mobile terminal device, a control method thereof, and a program, and more particularly to a mobile terminal device provided with a plurality of pressure sensors in a housing, a control method thereof, and a program.

  2. Description of the Related Art In recent years, mobile terminal devices such as mobile phones have been diversified in function. For example, a device having a function of displaying image data on a display device (LCD) and outputting sound from a speaker is known. ing. The mobile terminal device includes various user interfaces (hereinafter referred to as UI) for the user to use these functions.

  An example of the UI is a so-called metal dome type cross key. In a mobile terminal device having a cross key as a UI, the user presses keys arranged in the vertical and horizontal directions to move a cursor or the like on the display screen of the display device.

  Patent Document 1 discloses a portable electronic device having a UI including a touch sensor that detects contact of an object with a predetermined detection area and an operation button that detects pressure applied to a predetermined position in the detection area. The equipment is listed. In this electronic apparatus, the display screen is scrolled according to the movement of the contact position detected by the touch sensor, and the display screen is scrolled by a predetermined width each time pressure is detected by the operation button.

  Patent Document 2 describes a mobile phone device having a pressure sensor as a UI. In this cellular phone device, a plurality of pressure sensors are arranged in a housing. For example, according to a standard reference pressure value when the mobile phone device is held by a user's hand or in a pocket or the like, the mobile phone device is determined to be in a mobile state, and an incoming notification means is provided according to the mobile state. Is changed to either a vibrator or a ringer.

JP 2006-323664 A JP 2005-136845 A

  In a mobile terminal device having a metal dome-shaped cross key, the cursor is moved by continuously pressing the key, or the cursor is moved at a constant speed by continuously pressing the key. However, operations such as changing the moving speed of the cursor could not be performed.

  In the portable electronic device described in Patent Document 1, the display screen is scrolled according to the movement of the contact position to the touch sensor and the number of pressures detected by the operation buttons. However, with this technology, in order to achieve the desired scrolling speed, the user needs to move the finger at an appropriate speed after bringing the finger into contact with the detection area of the touch sensor. The button has to be pressed a predetermined number of times, which puts a burden on the user. As another example, in a portable terminal device equipped with an analog pointing device (APD) based on a Hall IC as a UI, when the user wants to move the cursor at a low speed, the key with a small area must be moved slightly. It was difficult to adjust the moving speed.

  In the mobile phone device described in Patent Document 2, the carrying state of the mobile phone device is determined according to a standard reference pressure value. However, when a mobile phone device is put in a pocket or bag, a plurality of pressure sensors react during movement, and it may be difficult to accurately determine the mobile state, which is not practical.

  By the way, various keys provided on the side surface of the casing of the mobile terminal device are usually mounted on one side surface, and there is a problem that the feeling of operation changes depending on the user's dominant hand. Furthermore, even if a key using a so-called tact switch is arranged on both sides of the housing, the feeling of pressing the key differs depending on the user's dominant hand. This is because the pressure required for the key to react is determined as an eigenvalue for each switch, but the user is more likely to press the key with the dominant hand and less likely to press the key with the non-dominant hand. is there. Furthermore, it may be difficult for a user with weak grip strength to give the key the pressure necessary for the key to react.

  An object of this invention is to provide the portable terminal device which can improve operativity using a pressure sensor, its control method, and a program.

In order to achieve the above object, the present invention includes first and second pressure sensors disposed on a surface of a housing,
Control means for comparing the pressure applied to each of the first and second pressure sensors with each other and controlling the state of the portable terminal device based on the comparison result;
The first and second pressure sensors are arranged on the same plane of the casing surface, occupy a predetermined area of the casing surface, and each has a straight portion on the edge, and both with one finger Are arranged adjacent to each other with the straight portions facing each other, so that the sensors can be simultaneously contacted,
A portable terminal device is provided.

In addition, the present invention is arranged on the same plane of the housing surface, occupies a predetermined area of the housing surface, each has a straight portion on the edge, and can touch both sensors simultaneously with one finger As described above, a control method for a portable terminal device including first and second pressure sensors disposed adjacent to each other with the straight portions facing each other,
Comparing the pressure applied to each of the first and second pressure sensors with each other and controlling the state of the portable terminal device based on the comparison result;
There is provided a method for controlling a portable terminal device.

Furthermore, the present invention is arranged on the same plane of the housing surface, occupies a predetermined area of the housing surface, and each edge has a straight line portion, so that both sensors can be simultaneously contacted with one finger. As described above, a program for a computer that controls a portable terminal device including first and second pressure sensors arranged adjacent to each other in a state where the linear portions are opposed to each other.
A function of comparing the pressure applied to each of the first and second pressure sensors with each other and controlling the state of the mobile terminal device based on the comparison result;
A program characterized by this is provided.

  According to the mobile terminal device, the control method and the program of the present invention, the state of the mobile terminal device is based on the result of comparing the pressure applied to the first and second pressure sensors arranged on the surface of the housing. Therefore, the user can perform the operation only by applying pressure to the two pressure sensors, and the operability is improved.

(A) And (b) is a figure shown in the state which expanded the portable terminal device which concerns on the 1st Embodiment of this invention, and the folded state. Sectional drawing which follows the A-A 'line of a portable terminal device. The block diagram which shows the function of a portable terminal device. The flowchart which shows the operation | movement at the time of performing WEB browsing with a portable terminal device. The flowchart which shows the operation | movement at the time of reproducing | regenerating audio | voice data with a portable terminal device. The flowchart which shows the operation | movement at the time of performing a power saving function with a portable terminal device. (A) And (b) is a figure which shows the state which made the finger | toe contact the portable terminal device which concerns on the 2nd Embodiment of this invention, and a pressure sensor. The flowchart which shows the operation | movement at the time of performing WEB browsing with the portable terminal device shown in FIG. (A) And (b) is a figure which shows the portable terminal device which concerns on the 3rd Embodiment of this invention in the unfolded state and the folded-down state. The flowchart which shows the operation | movement at the time of performing WEB browsing with the portable terminal device shown in FIG. (A) And (b) is a figure which shows the direction and speed of a scroll decided when a pressure is applied to the 1st and 2nd pressure sensor and the 1st and 3rd pressure sensor. The figure shown in the state which expanded and folded the slide-type portable terminal device.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
(First embodiment)
FIG. 1 is a diagram showing a configuration of a mobile terminal device according to the first embodiment of the present invention. The mobile terminal device 100 is a mobile device typified by, for example, a mobile phone and the like, and is not limited to a telephone call, but a communication function that enables mail transmission / reception and Internet connection, a camera function, a function of displaying various image data, It has various functions such as a function of reproducing voice (music) data. The portable terminal device 100 is a foldable type, and the upper housing 10 and the lower housing 20 are coupled to each other by a hinge 30 so as to be rotatable, and the unfolded state (open state) shown in FIG. The folded state (closed state) shown in FIG.

  The upper housing 10 has a liquid crystal display (LCD) 11 on the surface thereof, as shown in FIG. The LCD 11 displays a WEB site when connected to the Internet, a song list when music data is reproduced, a list of received mails, and the like. The upper housing 10 has a camera 12, a mobile light 13, a rear liquid crystal 14 and the like on the back as shown in FIG. For example, when the mobile terminal device 100 is changed from the open state to the closed state, or when a predetermined operation is performed in the closed state, information such as time and presence / absence of received mail is displayed on the rear liquid crystal 14 for a predetermined time. The

  The lower housing 20 has a numeric keypad 21, a cross key 22, and a center key 23 on its surface. The user performs various operations using these keys. In the present embodiment, the first pressure sensor 25 </ b> A and the second pressure sensor 25 </ b> B are disposed on the side surfaces 24 </ b> A and 24 </ b> B of the lower housing 20 that face each other. The first and second pressure sensors 25A and 25B are disposed in the vicinity of the hinge 30, and when the user holds the mobile terminal device 100, the first pressure sensor 25A is pressured (hereinafter also referred to as a load) with the thumb, for example. ) And the pressure can be applied to the second pressure sensor 25B with the index finger. A so-called tact switch can be arranged on the side surfaces 24A and 24B of the lower housing 20, but by assigning a function operable by the tact switch to the first and second pressure sensors 25A and 25B, the tact switch Is unnecessary.

  FIG. 2 is a cross-sectional view showing a cross section taken along the line A-A ′ of the mobile terminal device shown in FIG. 1. The lower casing 20 has a hole 27 for disposing the key sheet 26 on the front surface side of the casing, and first and second pressure sensors 25A and 25B for disposing the opposing casing side surfaces 24A and 24B, respectively. An opening 28 is formed. The surfaces of the first and second pressure sensors 25A and 25B are covered with a protective film 29, and are protected so that, for example, the user's finger is not in direct contact with them.

The lower housing 20 includes a support portion 31 which is a part of the housing and is formed substantially parallel to the housing side surfaces 24A and 24B, an FPC (Flexible Print Circuit) 32, a printed circuit board 33, and the like. The frame 34 and the shield frames 35 and 36 are provided. A connector 37, a memory 38, and a CPU 39 are disposed on the surface of the printed circuit board 33. A frame 34 is disposed so as to surround them, and a power IC 40 and a baseband IC 41, an RFIC 42, and a power IC 43 are disposed on the rear surface. Further, shield frames 35 and 36 are arranged so as to surround them. The FPC 32 is fixed to the support portion 31 and the frame 34 with a double-sided tape or the like, and is further connected to a connector 37. Further, first and second pressure sensors 25 </ b> A and 25 </ b> B are mounted on the side surface of the casing of the FPC 32. That is, the first and second pressure sensors 25A and 25B are electrically connected to the printed circuit board 33 from the FPC 32 via the connector 37, and further electrically connected to the CPU 39 through the wiring on the printed circuit board 33. ing. A metal dome 44 that is in contact with the key sheet 26 is disposed on the housing surface side of the FPC 32.

FIG. 3 is a block diagram showing functions and the like of the mobile terminal device shown in FIG. The CPU 39 of the portable terminal device 100 generates control signals and controls the first and second pressure sensors 25A and 25B, the power supply IC 40, the LCD 11, the memory 38, and the baseband IC 41, respectively. The power supply IC 43 supplies the power supplied from the battery pack 45 to the CPU 39, the first and second sensors 25A and 25B, the LCD 11, and the like. Similarly, the power supply ICs 40 and 43 supply the power supplied from the battery pack 45 to the baseband IC 41 and the like. The baseband IC 41 exchanges control signals with the RFIC 42 connected to the antenna 46. The baseband IC 41 has a function of, for example, modulating data to generate a baseband signal, and demodulating the baseband signal to restore the original data. For example, the RFIC 42 has a function of modulating a baseband signal to generate a signal to be transmitted from the antenna 46, restoring the baseband signal from a signal received by the antenna 46, and passing it to the baseband IC 41.

  Next, the operation of the CPU 39 will be described. The CPU 39 operates by being supplied with power from the power supply IC 40. For example, when receiving a detection signal indicating that pressure is applied from the first and second pressure sensors 25A and 25B, the CPU 39 and the baseband A control signal including various commands corresponding to the applied pressure value (weighted value) is delivered to other devices such as the IC 41 and the LCD 11. The first and second pressure sensors 25A and 25B are calibrated in advance before use, and the difference between the weight values detected in a state where no pressure is applied becomes zero. The first and second pressure sensors 25A and 25B maintain the power saving state when not in use.

  The CPU 39 determines the magnitude of a difference value between the weight value (first weight value) of the first pressure sensor 25A and the weight value (second weight value) of the second pressure sensor 25B, for example, “first weight difference−second”. The “weight value” is calculated, and it is further determined whether or not the difference value is positive or negative, for example, “first weight value−second weight value> 0”. That is, the CPU 39 compares the first weight value and the second weight value with each other, and based on the comparison result, delivers a command to each device, and constitutes control means for controlling the state of the mobile terminal device 100. This will be specifically described below.

  First, the case where the CPU 39 controls the scroll state on the LCD 11 based on the difference between the weight values of the first and second pressure sensors 25A and 25B will be described with reference to FIG. Here, the CPU 39 calculates the difference value of the weight value at a predetermined interval, gives an instruction to update the screen display to the LCD 11, and the screen display of the LCD 11 is continuously updated. Note that updating the screen display means scrolling.

  FIG. 4 is a flowchart showing a screen scrolling operation during WEB browsing. First, weighting is set before operating the first and second pressure sensors 25A and 25B (step S10). In step S10, the CPU 39 sets the correspondence between the magnitude of the difference value of the weight value and the scroll speed, and the correspondence between the positive / negative of the difference value and the scroll direction, and stores it in the memory 38 or the like. Here, as the difference value of the weight value is larger, the scroll speed is increased, and when the difference value is negative, that is, if “first weight value−second weight value <0”, the scroll direction is changed. The setting was set in the downward direction.

  Next, the WEB browser is started using various menus displayed on the LCD 11 (step S11), the URL is input, or the bookmarked WEB page is jumped to and connected to the designated WEB site. The site is displayed on the LCD 11 (step S12).

  In this state, when the first and second pressure sensors 25A and 25B detect the weight (step S13), the first pressure sensor 25A transmits the detected weight value to the CPU 39 (step S14), and further the second pressure. The sensor 25B transmits the detected weight value to the CPU 39 (step S15). In step S13, it is assumed that the user has applied a weight to the first and second pressure sensors 25A, 25B with, for example, the thumb and the index finger.

  The CPU 39 compares the weight values detected by the first and second pressure sensors 25A and 25B, calculates the magnitude of the difference value (step S16), and determines whether the difference value is positive or negative (step S17). . Here, in the weight setting in step S10, the correspondence between the magnitude of the difference value and the scroll speed, and the correspondence between the positive / negative of the difference value and the scroll direction are stored in the memory 38, for example.

  The CPU 39 reads these correspondences from the memory 38 or the like, and if the difference value is negative (Y in step S17), the LCD 11 is configured to scroll downward at a scroll speed corresponding to the magnitude of the difference value. If the difference value is positive (step S17, N), the LCD 11 is controlled to scroll upward at a scroll speed corresponding to the magnitude of the difference value (step S18). S19). Thereafter, the process returns to step S13 again.

  In the control method related to scrolling, since the scroll speed is related to the magnitude of the difference value, for example, the user can apply the weight to the first and second pressure sensors 25A and 25B, and the scroll direction and the scroll speed can be set. Can be adjusted. Moreover, even if it is a small weight value, since a difference operation produces a scroll operation, the user's grip strength may be small. Further, the user can adjust the scroll direction and the scroll speed by changing the force level while viewing the display screen. Note that the size of the display screen displayed on the LCD 11 of the portable terminal device is small and the frequency of scrolling is high. As a result, the above control method is effective.

  Next, referring to FIG. 5, the CPU 39 determines the music data such as SD-Audio or MP3 to be reproduced by the mobile terminal device 100 based on the difference between the weights of the first and second pressure sensors 25A and 25B. A case where the volume, selection of fast forward or rewind reproduction, and the speed of fast forward or rewind are controlled will be described. FIG. 5 is a flowchart showing an operation when reproducing music data. Note that, among the processes in the flowchart shown below, the description of the same processes as those in the flowchart shown in FIG. 4 is omitted as appropriate.

  First, weight setting is performed using a setting menu displayed on the LCD 11 (step S20). In step S20, if the difference value is positive, that is, “first weight value−second weight value> 0”, the CPU 39 performs fast forwarding, while the difference value is negative, that is, “first weight value−second weight”. If the weight value is <0, the setting is made so that the rewinding is performed, and the correspondence between the magnitude of the difference value and the fast-forwarding or rewinding speed is set, and the setting contents are stored in the memory 38 or the like. To do. In addition, it sets so that the speed of fast forward and rewinding may become so large that a difference value is large.

  Next, when the music player is activated from various menus displayed on the LCD 11 (step S21), a music data song list is displayed on the LCD 11 (step S22). Note that the music data is stored in, for example, a large-capacity external memory or built-in memory. In this state, when the weight is simultaneously detected by the first and second pressure sensors 25A and 25B (step S23), the CPU 39 moves the cursor displayed on the LCD 11 (step S24) and selects a song to be reproduced. Let

  Further, when the song is determined by the enter key or the like, the playback of the song is started (step S25), and it is determined whether or not the playback is stopped (step S26). Return to the process of displaying the song list. Note that the process of stopping the reproduction of the music is executed not by the pressure sensors 25A and 25B but by normal key input.

  On the other hand, when the reproduction of the music is not stopped in step S26 (N), when the first and second pressure sensors 25A and 25B detect the weight again during the reproduction (step S27), the CPU 39 determines the difference value of the weights. And the sign of the difference value is determined (step S28). Here, in the weight setting in step S20, the correspondence between the magnitude of the difference value and the fast-forward or rewind speed and the correspondence between the positive / negative of the difference value and the selection of fast-forward or rewind are stored in the memory 38, for example. Has been.

  The CPU 39 reads these correspondences from the memory 38 or the like, and if the difference value is negative (step S28, Y), rewinds the song at a speed corresponding to the magnitude of the difference value (step S29), or If the difference value is positive (step S28, N), control is performed to fast-forward the music at a speed corresponding to the magnitude of the difference value (step S30).

  In the control method related to music reproduction, the user can easily control the state of the music data simply by applying a weight to the first and second pressure sensors 25A and 25B. This control method associates the positive / negative of the difference value with the increase / decrease of the volume, and further associates the magnitude of the difference value with the speed of adjusting the volume, so that the volume setting during music playback or during a call can be performed. Applicable. In recent portable terminal devices, a large-capacity external memory such as an SD card or a memory stick can be inserted, and a large amount of music data can be carried. For this reason, the above control method is preferable in that a desired music piece can be selected from a large number of music pieces, and the sound volume, playback speed, etc. of the music piece can be easily changed.

  Furthermore, referring to FIG. 6, when the load is not detected from the first and second pressure sensors 25 </ b> A and 25 </ b> B when the CPU 39 changes from the open state to the closed state, the mobile terminal device 100. A case will be described in which control for immediately shifting to the power saving mode is performed. First, when the mobile terminal device 100 is used in the open state (step S40), and then the use is stopped and the mobile terminal device 100 is in the closed state (step S41), the CPU 39 changes from the open state to the closed state. It is determined whether any of the first and second pressure sensors 25A and 25B has detected a weight (step S42).

  In step S42, if any of the first and second pressure sensors 25A, 25B detects weighting and the portable terminal device is in a closed state (Y), the CPU 39 displays time information on the rear liquid crystal 14. Are displayed, and the mode is shifted to the power saving mode after a predetermined time has elapsed (step S43). On the other hand, when the mobile terminal device is in a closed state without detecting the weight of any of the first and second pressure sensors 25A and 25B (N), the CPU 39 does not display the rear liquid crystal 14, but immediately Transition to the power saving mode (step S44). In this way, in step S44, the time required to shift to the power saving mode is shortened compared to step S43.

  Subsequently, the mobile terminal device 100 enters an unused state (step S45). In step S45, for example, it is assumed that the user places the mobile terminal device 100 on the floor or puts it in a pocket or bag. Next, the CPU 39 determines whether or not the first and second pressure sensors 25A and 25B have detected a weight value greater than a certain value (step S46), and if a weight value greater than a certain value is detected (Y), Similar to step S43, desired information is displayed on the rear liquid crystal 14, and after a predetermined time has passed, the mode again shifts to the power saving mode (step S47). This is assumed to be a case where the user intentionally touches the first and second sensors 25A and 25B while holding the portable terminal device 100 again in his / her hand. On the other hand, if no weight value is detected in step S46 (N), the power saving mode is maintained (step S48).

  Next, when the mobile terminal device 100 is again in the open state (step S49, Y), the power saving mode is canceled (step S50), the process returns to step S40 again, and the subsequent processing is repeated. On the other hand, if the closed state is maintained in step S49 (N), the power saving mode is maintained (step S51), and the process returns to step S46 again.

  In the control method related to the power saving function, the CPU 39 immediately puts the portable terminal device into the power saving mode if no weight is detected from the first and second pressure sensors 25A and 25B when the portable terminal device is closed. Since the power saving mode is maintained until the weight is detected, the transition time from the operation to the power saving mode can be shortened and the standby time can be extended.

  Since the mobile terminal device 100 includes the first pressure sensor 25A and the second pressure sensor 25B on the opposite side surfaces 24A and 24B, the user places the mobile terminal device 100 on the floor or tilts it sideways. It is considered that there are few situations in which a weight is applied to both the first and second pressure sensors 25A and 25B when placed in a pocket or bag. That is, in the mobile terminal device 100, the power saving mode is not canceled against the user's intention, malfunction can be prevented, and the utility is high.

  According to the mobile terminal device 100 of the present embodiment, the user can apply the weights to the first and second pressure sensors 25A and 25B, and change the various states according to the magnitude of the difference value between the weight values and the sign. Since it is controllable, various operations can be easily performed regardless of the user's dominant hand, grip strength and the like. As a result, operability can be improved.

(Second Embodiment)
FIG. 7 is a diagram showing a configuration of a mobile terminal device according to the second embodiment of the present invention. FIG. 4A shows an open state of the mobile terminal device 100A, and FIG. 4B shows a state in which a user makes a finger (for example, a thumb) 60 contact the first and second pressure sensors 50A and 50B. Show. In the portable terminal device 100A, the first and second pressure sensors 50A and 50B are arranged adjacent to each other on the front surface 20a of the lower housing, and the pressure sensors 25A and 25B are arranged on opposite side surfaces. This is different from the portable terminal device 100 according to the embodiment.

  In the mobile terminal device 100A, the first and second pressure sensors 50A and 50B are disposed on the upper part of the cross key 22 as shown in FIG. Note that the first and second pressure sensors 50A and 50B are arranged adjacent to each other so that the user can contact both the pressure sensors 50A and 50B with only the thumb 60, for example. Here, at a position 51 shown in FIG. 5B, a weight is applied to both pressure sensors 50A and 50B substantially evenly. At the position 52, a weight is applied by the second pressure sensor 50B as compared to the first pressure sensor 50A. Further, at the position 53, a weight is applied by the first pressure sensor 50A as compared with the second pressure sensor 50B. That is, the positions 51 to 53 are easily determined by simply tilting the thumb 60 and moving the center of gravity.

  In the mobile terminal device 100 </ b> A, the user can generate the difference value of the weight value by positioning the thumb 60 at the positions 52 and 53. The mobile terminal device 100A can execute substantially the same control as the mobile terminal device 100 according to the difference value. However, in the mobile terminal device 100A, since the weight is not detected in the first and second pressure sensors 50A and 50B in the closed state, the power saving function shown in FIG. 6 is not executed.

  Hereinafter, as an example, a case where the CPU 39 controls the scroll state on the LCD 11 based on the difference between the weight values of the first and second pressure sensors 50A and 50B will be described with reference to FIG. FIG. 8 is a flowchart showing the screen scrolling operation during WEB browsing, as in FIG. First, weight setting is performed (step S60), a WEB browser is started (step S61), and a WEB site is displayed on the LCD 11 (step S62). In this state, when the user places a thumb at the position 51, the first and second pressure sensors 50A and 50B detect weight values (step S63). At this position, the weight difference value is substantially zero.

  Subsequently, when the user tilts the thumb 60 left and right, the center of gravity moves and a difference value is generated. Therefore, the CPU 39 determines which pressure sensor 50A, 50B has a higher weight value (step S64). ). Here, if the user's thumb 60 is at the position 52, the second pressure sensor 50B is more heavily loaded than the first pressure sensor 50A. That is, the CPU 39 determines that the weight value of the second pressure sensor 50B is large (step S65), and further determines that the difference value of the weight value is negative (step S66). Subsequently, the CPU 39 controls the LCD 11 to scroll downward at a scroll speed corresponding to the magnitude of the difference value (step S67).

  On the other hand, if the user's thumb 60 is at the position 53, the first pressure sensor 50A is more heavily loaded than the second pressure sensor 50B. That is, the CPU 39 determines that the weight value of the first pressure sensor 50A is large (step S68), and further determines that the difference value of the weight value is positive (step S69). Subsequently, the CPU 39 controls the LCD 11 to scroll upward at a scroll speed corresponding to the magnitude of the difference value (step S70). After steps S67 and 70, the CPU 39 returns to step S63 again and repeats the subsequent processing.

  According to the mobile terminal device 100A of the present embodiment, since the weight difference value is generated only by the user bringing the finger 60 into contact with the first and second pressure sensors 50A and 50B and tilting, the operability can be further improved. .

(Third embodiment)
FIG. 9 is a diagram illustrating a configuration of a mobile terminal device according to the third embodiment of the present invention. In addition, the figure (a) has shown the open state, and the figure (b) has shown the closed state. The mobile terminal device 100B is different from the mobile terminal device 100 according to the first embodiment in that the mobile terminal device 100B further includes a third pressure sensor 25C disposed on one of the two opposing side surfaces 24A and 24B. In the portable terminal device 100B, not only the first and second pressure sensors 25A and 25B but also a third pressure sensor 25C is disposed below the side surface 24B that is the same as the second pressure sensor 25B.

  Hereinafter, referring to FIG. 10, the CPU 39 calculates the magnitude and positive / negative of the difference value based on the weight values detected from the first to third pressure sensors 25 </ b> A to 25 </ b> C, and performs the two-dimensional scroll direction and scroll. A case where the speed is determined will be described. FIG. 10 is a flowchart showing the screen scrolling operation during WEB browsing, as in FIG. First, after setting the weight (step S80), the WEB browser is started (step S81), and the designated WEB site is displayed on the LCD 11 (step S82). In this state, when the user applies a weight to at least two of the first to third pressure sensors 25A to 25C with two or three fingers, at least two of the first to third pressure sensors 25A to 25C detect the weight. (Step S83).

  Subsequently, the CPU 39 determines which of the first to third pressure sensors 25A to 25C has detected the weight (step S84). As the determination result of step S84, for example, the combination of the first pressure sensor 25A and the second pressure sensor 25B shown in step S85, the combination of the first pressure sensor 25A and the third pressure sensor 25C shown in step S86, step S87. A combination of the second pressure sensor 25B and the third pressure sensor 25C shown in FIG. 5 and a combination of all the first to third pressure sensors 25A to 25C shown in step S88. In accordance with these combinations, the CPU 39 determines the scroll direction.

  Here, with reference to FIG. 11, step S85 and S86 are demonstrated concretely. First, the case where a weight is detected from the first and second pressure sensors 25A and 25B in step S85 will be described with reference to FIG. Here, a predetermined vector A is set in advance. The magnitude of the vector A is associated with the scroll speed, the direction is the upward direction, and is associated with the scroll direction. These settings are made in step S80. Moreover, the magnitude | size of the vector B is matched with the magnitude | size of the difference value of 1st and 2nd pressure sensor 25A, 25B, and the positive / negative of a difference value is matched with the horizontal direction.

  A vector C obtained by combining these vectors A and B has a direction corresponding to the scroll direction and a magnitude corresponding to the scroll speed. Since the direction of the vector C changes in the angle range D (except 0, 90, and 180 degrees) as shown in the drawing, the vector C can be scrolled in the angle range D. Returning to FIG. 10 again, if the difference value is negative in step S85, the CPU 39 controls the LCD 11 so that the scroll direction is in the upper right direction with a certain angle (step S85A). If so, the LCD 11 is controlled so that the scroll direction is an upper left direction with a certain angle (step S85B).

  Next, with reference to FIG. 5B, the case where a weight is detected from the first and third pressure sensors 25A and 25C in step S86 will be described. Here, a predetermined vector E is set in advance. The magnitude of the vector E is associated with the scroll speed, the direction is downward, and is associated with the scroll direction. Moreover, the magnitude | size of the vector F is matched with the magnitude | size of the difference value of 1st and 3rd pressure sensor 25A, 25C, and the positive / negative of a difference value is matched with the horizontal direction.

  A vector G obtained by combining these vectors E and F has a direction corresponding to the scroll direction and a size corresponding to the scroll speed. Since the direction of the vector G changes in the angle range H (excluding 0 degrees, −90 degrees, and 180 degrees) as shown in the figure, the vector G can be scrolled in the angle range H. Here, if the difference value is negative in step S86, the CPU 39 controls the LCD 11 so that the scroll direction is in the lower right direction with a certain angle (step S86A). The LCD 11 is controlled so that the scroll direction is in the lower left direction with a certain angle (step S86B).

  Next, the case where a weight is detected from the second and third pressure sensors 25B and 25C in step S87 will be described. Here, the CPU 39 determines whether the difference value is positive or negative based on the magnitude relationship between the weight values detected by the second pressure sensor 25B and the third pressure sensor 25C, and if negative, the LCD 11 is scrolled downward. If it is positive, the LCD 11 is controlled to scroll upward (step S87B). The scroll speed corresponds to the magnitude of the difference value.

  Finally, the case where a weight is detected from the first to third pressure sensors 25A to 25C in step S88 will be described. Here, in steps S85 to S87, horizontal scrolling cannot be realized. Therefore, the case where a weight is applied to the first to third pressure sensors 25A to 25C is assigned to the horizontal scroll.

  That is, when a weight is detected simultaneously from the first to third pressure sensors 25A to 25C, the third pressure sensor 25C functions as a trigger that limits the scroll direction to the horizontal direction regardless of the detected weight. In this way, the CPU 39 determines the magnitude and positive / negative of the difference value using only the weight values of the first and second pressure sensors 25A and 25B, and if negative, scrolls to the right. The LCD 11 is controlled (step S88A), and if it is positive, the LCD 11 is controlled to scroll leftward (step S88B). The scroll speed corresponds to the magnitude of the difference value.

  According to the mobile terminal device 100B of this embodiment, the CPU 39 calculates the magnitude and positive / negative of the difference value from the weight values applied to the first to third pressure sensors 25A to 25C, and on the display screen accordingly. Can determine the two-dimensional scroll direction. As a result, it becomes possible to scroll on the display screen at a desired speed of 360 degrees, and the operability can be further improved.

  Here, in the mobile terminal device 100 according to the first embodiment, the control method of scrolling up and down during WEB browsing has been described as shown in the flowchart in FIG. 4, but the present invention is not limited to this. For example, when the weight is set in step S10, the scroll direction may be set to be the left-right direction according to the sign of the difference value. In addition, a function of switching between the vertical direction and the horizontal direction as the scroll direction may be appropriately assigned to keys other than the first and second pressure sensors 25A and 25B.

  Furthermore, the control method shown in FIG. 4 can be applied to the browsing of received mail. For example, a weight is applied to the first and second pressure sensors 25A and 25B while browsing the text of the received mail on the LCD 11. Scrolling may be performed.

  In the flowchart shown in FIG. 5, each process at the time of playing music is shown. However, the present invention is not limited to this, and the above-described processes can also be applied when playing back moving image data by the mobile terminal device 100. That is, in the mobile terminal device 100, there are situations in which various types of moving image data are reproduced, such as reproducing moving image data obtained via the Internet, moving image data shot by a camera, and recorded one-seg broadcast moving image data. Therefore, each process shown in FIG. 5 can be performed in the same procedure as that for music reproduction, such as fast-forwarding, rewinding, and volume adjustment when reproducing a moving image. Note that channel scanning or the like can be applied in the same manner when receiving one-segment broadcasting.

Further, in the first to third embodiments, the folding type has been described as the mobile terminal devices 100, 100A, and B. However, the folding type is not limited thereto, and other types such as a slide type and a straight type may be used. FIG. 12 is a diagram illustrating a slide-type mobile terminal device in an unfolded state and a folded state. As illustrated, the mobile terminal device 100C includes an upper housing 10A, a lower housing 20A, and a slide mechanism (not shown) that couples the upper housing 10A and the lower housing 20A while slidably holding them. Is provided. The upper housing 10A has an LCD 11, a cross key 22, and a center key 23 on the surface thereof. The lower housing 20A includes a numeric keypad 21 disposed on the surface thereof, and first and second pressure sensors 25A and 25B disposed on opposing side surfaces 24A and 24B, respectively. Further, the slite type portable terminal device 100C may adopt a configuration in which three pressure sensors as shown in FIG. 9 are arranged. For this reason, also in the mobile terminal device 100C, the user can perform substantially the same operation as the mobile terminals 100, 100A, and B by applying a weight to at least two pressure sensors. Note that the straight-type mobile terminal device can be implemented except for the process of shifting to the power saving mode shown in FIG.

  In each said embodiment, although the mobile telephone was illustrated as a portable terminal device, if a some pressure sensor can be arrange | positioned on the housing | casing surface, it will not be limited to this. In other words, for various portable terminal devices such as notebook PCs with communication functions, personal handy phone systems (PHS), PDAs with communication functions (Personal Data Assistance, Personal Digital Assistants), portable music players, portable TVs, etc. You may apply.

  As described above, the following modes can be adopted in the mobile terminal device of the present invention. The control means (39) compares the magnitude of the pressure applied to the first and second pressure sensors (25A, 25B), and in the display device (11) arranged on the surface of the housing based on the comparison result. Control the direction of scrolling. Thereby, the state of scrolling can be easily controlled regardless of the strength of the grip strength of the user.

  The control means calculates a difference between the pressures applied to the first and second pressure sensors, and controls the scroll speed based on the difference. In this case, it is possible to control the scroll state by simply touching the two pressure sensors, and the operability is improved.

  The control means calculates a difference between the pressures applied to the first and second pressure sensors, and selects, based on the difference, the volume of the audio data output from the mobile terminal device (100), fast forward or rewind playback. And at least one of fast forward or rewind speed. As a result, the user can easily control the state of the audio data simply by touching the two pressure sensors.

  The first and second sensors are arranged on two opposing side surfaces (24A, 24B) of the housing (20). Thereby, operability can be improved regardless of the user's dominant hand.

  When the casing is a foldable casing and the control unit detects that no pressure is applied to the first and second pressure sensors when the casing is folded from the expanded state, Control to shift the portable terminal device to the power saving mode is performed. In this case, the standby time can be extended by shortening the transition time from the operation to the power saving mode.

  A third pressure sensor (25C) disposed on one of the two opposing side surfaces is further provided, and the control means compares the magnitudes of the pressures applied to the first to third pressure sensors, and determines the comparison result. Based on this, at least a two-dimensional scroll direction is determined on the display screen. Thereby, it becomes possible to scroll on the display screen at a desired speed of 360 degrees, and the operability is further improved.

  The first and second sensors (50A, 50B) are disposed adjacent to each other on the front surface (20a) of the housing. In this case, for example, the thumb is brought into contact with the first and second sensors, and the thumb is tilted to cause a difference in pressure. Various controls can be performed according to the difference, thereby improving operability.

  As mentioned above, although this invention was demonstrated based on the suitable embodiment, the portable terminal device of this invention, its control method, and a program are not limited only to the structure of the said embodiment, The structure of the said embodiment To which various modifications and changes are made within the scope of the present invention.

  A part or all of the above embodiments can be described as in the following supplementary notes, but is not limited thereto.

(Appendix 1)
First and second pressure sensors disposed on the surface of the housing;
A portable terminal device comprising: control means for comparing the pressure applied to each of the first and second pressure sensors with each other and controlling the state of the portable terminal device based on the comparison result.

(Appendix 2)
The control means compares the magnitudes of pressure applied to the first and second pressure sensors, and controls the direction of scrolling in a display device arranged on the surface of the housing based on the comparison result. The mobile terminal device according to 1.

(Appendix 3)
The portable terminal device according to appendix 2, wherein the control means calculates a difference between pressures applied to the first and second pressure sensors, and controls the scroll speed based on the difference.

(Appendix 4)
The control means calculates a difference between pressures applied to the first and second pressure sensors, and based on the difference, selects a volume of audio data output by the mobile terminal device, fast-forward or rewind playback, The portable terminal device according to appendix 1, which controls at least one of fast-forwarding or rewinding speed.

(Appendix 5)
The mobile terminal device according to any one of appendices 1 to 4, wherein the first and second sensors are arranged on two opposite side surfaces of the housing.

(Appendix 6)
The casing is a foldable casing, and the control means is such that no pressure is applied to the first and second pressure sensors when the casing is folded from the unfolded state. The mobile terminal device according to appendix 5, wherein the mobile terminal device is controlled to shift to a power-saving mode when detected.

(Appendix 7)
A third pressure sensor disposed on one of the two opposing side surfaces is further provided, and the control means compares the magnitudes of the pressures applied to the first to third pressure sensors, and determines the comparison result. The mobile terminal device according to appendix 5 or 6, wherein at least a two-dimensional scroll direction is determined on the display screen.

(Appendix 8)
The mobile terminal device according to any one of appendices 1 to 4, wherein the first and second sensors are disposed adjacent to each other on a front surface of a housing.

(Appendix 9)
A method for controlling a portable terminal device including first and second pressure sensors arranged on a surface of a housing,
A control method for a mobile terminal device, wherein the pressures applied to the first and second pressure sensors are compared with each other, and the state of the mobile terminal device is controlled based on the comparison result.

(Appendix 10)
A program for a computer for controlling a portable terminal device including first and second pressure sensors disposed on a surface of a housing, the computer comprising:
A program that compares the pressure applied to each of the first and second pressure sensors with each other and executes a process of controlling the state of the mobile terminal device based on the comparison result.

10: Upper housing 11: LCD
14: Back liquid crystal 20: Lower casings 24A, 24B: Side surfaces 25A, 50A: First pressure sensor 25B, 50B: Second pressure sensor 25C: Third pressure sensor 38: Memory 39: CPU
40, 43: Power supply IC
41: Baseband IC
42: RFIC
45: Battery pack 46: Antenna 100, 100A to C: Mobile terminal device

Claims (7)

First and second pressure sensors disposed on the surface of the housing;
Control means for comparing the pressure applied to each of the first and second pressure sensors with each other and controlling the state of the portable terminal device based on the comparison result;
The first and second pressure sensors are arranged on the same plane of the casing surface, occupy a predetermined area of the casing surface, and each has a straight portion on the edge, and both with one finger Are arranged adjacent to each other with the straight portions facing each other, so that the sensors can be simultaneously contacted,
The portable terminal device characterized by the above-mentioned.   The said control means compares the magnitude of the pressure applied to the said 1st and 2nd pressure sensor, and controls the direction of the scroll in the display apparatus arrange | positioned on the said housing | casing surface based on this comparison result. Item 2. The mobile terminal device according to Item 1.   The said control means calculates the difference of the pressure applied to the said 1st and 2nd pressure sensor, and controls the speed of the scroll in the display apparatus arrange | positioned on the said housing | casing surface based on this difference. The mobile terminal device according to 1 or 2.   The control means calculates a difference between pressures applied to the first and second pressure sensors, and based on the difference, selects a volume of audio data output by the mobile terminal device, fast-forward or rewind playback, And the portable terminal device of Claim 1 which controls at least 1 of the speed of fast forward or rewinding. Each of the first and second pressure sensors has a quadrangular shape and is adjacent to each other with one side facing the front surface of the housing so that both sensors can be simultaneously contacted with one finger. Arranged,
The mobile terminal device according to claim 1, wherein the mobile terminal device is a mobile terminal device. The straight lines are arranged on the same plane of the housing surface, occupy a predetermined area of the housing surface, and each has a straight portion at the edge so that both sensors can be simultaneously contacted with one finger. A method for controlling a portable terminal device comprising first and second pressure sensors arranged adjacent to each other with their parts facing each other,
Comparing the pressure applied to each of the first and second pressure sensors with each other and controlling the state of the portable terminal device based on the comparison result;
A method for controlling a portable terminal device. The straight lines are arranged on the same plane of the housing surface, occupy a predetermined area of the housing surface, and each has a straight portion at the edge so that both sensors can be simultaneously contacted with one finger. A program for a computer for controlling a portable terminal device including first and second pressure sensors arranged adjacent to each other with the portions facing each other, the computer comprising:
A function of comparing the pressure applied to each of the first and second pressure sensors with each other and controlling the state of the mobile terminal device based on the comparison result;
A program characterized by that.

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