JP2010020405A - Communication terminal device and its touch panel input control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent any erroneous operation due to any unexpected contact with a touch panel in speech without restricting any input to the touch panel. <P>SOLUTION: In a communication terminal device, a central control part 105 changes the flag state of the flag storage part of an input control part 110 according to whether a speech state is set. An input control part decides whether the speech state is set according to the flag state of the flag storage part, and selects detection criteria to be used for the input detection of the touch panel 109, and decides valid/invalid of the detected input. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a communication terminal device, and more particularly to a communication terminal device including a voice communication function and a touch panel, and a touch panel input control method thereof.

  In a communication terminal device having a voice call function and a touch panel, it is necessary to prevent malfunction caused by a part of the face or hand inadvertently touching the touch panel during a voice call.

  The conventional communication terminal device malfunctions by disabling all input to the touch panel or disabling input to most of the area and enabling only part of the area during voice calls. (For example, Patent Document 1 or 2).

Japanese Patent Laid-Open No. 9-18586 JP 2000-349886 A

  A conventional communication terminal device prevents malfunctions during a voice call by invalidating all inputs to the touch panel or invalidating inputs to areas other than a specific area. However, a communication terminal device or the like called a business handy terminal has a desire to input to the touch panel while in a call state.

  Therefore, an object of the present invention is to provide a communication terminal device that can prevent malfunction due to careless touch on a touch panel during a voice call without restricting input to the touch panel.

  The first gist of the present invention is a communication terminal device comprising a voice call means and a touch panel, a determination means for determining whether or not the voice call means is in a call state, and a determination result of the determination means, And a reference selection means for selecting a detection reference used for input detection of the touch panel.

  According to a second aspect of the present invention, there is provided a touch panel input control method for a communication terminal device including a voice call means and a touch panel, the step of determining whether the voice call means is in a call state, Selecting a detection criterion used for input detection of the touch panel based on the determination result.

  According to the present invention, the detection reference used for input detection of the touch panel is selected / changed according to whether or not the telephone is in a call state, so that the input to the touch panel is not restricted and the careless touch panel is used. It is possible to prevent malfunctions due to contact with the.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a block diagram showing a schematic configuration of a communication terminal apparatus 10 according to an embodiment of the present invention.

  The communication terminal device 10 includes a control program 101, a business processing program 102, a call processing program 103, and other programs necessary for operation, a memory 104 used when executing each program, and a central control unit that controls the operation of the entire device. Control unit 105, communication control unit 106 that controls communication processing operation, display control unit 108 that controls screen display processing operation of display unit 107, input control unit 110 that performs input processing of touch panel 109, and voice communication A microphone 111 and a speaker 112 are provided.

  The control program 101 is a program (OS) for realizing the basic functions of the communication terminal device 10 and realizing smooth execution of the business processing program 102 and the call processing program 103.

  The business processing program 102 is a program for causing the communication terminal device 10 to function as a handy terminal used for, for example, inventory management business. The call processing program 103 is a program for causing the communication terminal device 10 to function as a cellular phone.

  The memory 104 temporarily stores a program executed by the central control unit 105.

  The central control unit 105 controls the overall operation of the communication terminal apparatus 10 based mainly on input from the touch panel 109.

  The communication control unit 106 realizes a call using the microphone 111 and the speaker 112 under the control of the central control unit 105 that executes the call processing program 103. Further, data communication may be performed under the control of the central control unit 105 that executes the business processing program 102.

  The display control unit 108 displays characters and graphics on the display unit 107 under the control of the central control unit 105. These characters and graphics also include function buttons (icons, etc.) for realizing predetermined functions. The display unit 107 is configured using a liquid crystal panel or an organic EL panel.

  The input control unit 110 detects an input operation to the touch panel 109 under the control of the central control unit 105 and specifies the input coordinates. The touch panel 109 is disposed so as to overlap the display unit 107. When the coordinate area of the function button displayed on the display unit 107 includes an input coordinate area, the function button is pressed in the central control unit 105. Can be judged.

  Next, the operation of the communication terminal device 10 will be described.

  First, an example of processing that can be executed using the communication terminal device 10 will be described with reference to FIG.

  First, the communication terminal device 10 is used as a handy terminal used in a warehouse shelf management business, that is, a stock product management business in a warehouse (S201). At this time, if it becomes necessary to make an inquiry to an office located away from the warehouse, the communication terminal device 10 is used as a cellular phone (mobile phone). That is, the communication terminal device 10 is used for voice communication (for example, confirmation of product information) via a telephone line with an office telephone (S202).

  Even in a call state, the communication terminal device 10 can perform an input operation to the touch panel 109 (S203). That is, the communication terminal device 10 can be operated as a handy terminal even when a telephone line is connected. Of course, the voice call can be resumed after the input to the touch panel 109 is completed.

  When the voice call is finished and the telephone line is disconnected (S204), it is used again as a normal handy terminal (S205).

  In the above operation, each of the operation as a handy terminal and the operation as a cellular phone is the same as a publicly known one, and the description thereof is omitted. In the following, a method for enabling an input operation to the touch panel 109 while maintaining a call line while preventing malfunction due to careless body contact with the touch panel 109 in a call state will be described.

  In a state where a telephone line is not connected (hereinafter referred to as a normal state), input to the touch panel 109 can be performed normally. Therefore, even during the inventory management operation, the telephone number can be input and the outgoing operation can be performed using the touch panel 109.

  The central control unit 105 realizes various functions according to the display content of the display unit 107 and the input status to the touch panel 109. That is, the central control unit 105 causes the communication terminal device 10 to function as a cellular phone if there is a selection of a telephone function, input of a telephone number, or pressing of a call button. At this time, the central control unit 105, the call processing program 103, the memory 104, the call control unit 106, the microphone 111, and the speaker 112 function as voice call means.

  When the central control unit 105 serving as a voice call unit further detects that the call button has been pressed, the central control unit 105 determines that the call state has shifted from the normal state, and changes the flag state of the flag storage unit described later. Specifically, a call flag is set in the flag storage unit of the input control unit 110. When it is detected that the call end button has been pressed, it is determined that the call state has shifted to the normal state, and the call flag is cleared (reset).

  As shown in FIG. 3, the input control unit 110 includes a flag storage unit 301, a detection reference storage unit 302, and a control unit 303.

  The detection criterion storage unit 302 stores a first detection criterion for a normal state and a second detection criterion for a call state as detection criteria for determining validity / invalidity of an input signal from the touch panel 109. Yes.

  The control unit 303 determines whether or not the call flag is set in the flag storage unit 301, and determines the first detection reference or the second detection reference stored in the detection reference storage unit 302 according to the determination result. The selection is made to determine whether the input signal from the touch panel 109 is valid or invalid. That is, the control unit 303 functions as a determination unit that determines whether or not a call is in progress, and a criterion selection unit that selects a detection criterion used for input detection of the touch panel 109.

  Thus, by selecting / changing the detection criterion (first or second detection criterion) depending on whether or not the call flag is set, that is, whether or not the call line is connected. In addition, the input to the touch panel 109 while the telephone line is connected is made possible, and an erroneous input caused by a part of the body inadvertently touching the touch panel 109 is invalidated.

  As a detection criterion, a threshold (input allowable range) regarding the area of the contact area with the touch panel 109 can be used.

  When a part of the face touches the touch panel 109 during a call, the contact area tends to be wider than when an input operation is performed using a finger, a stylus, or the like. Therefore, when an input of a region wider than a predetermined area is detected, an input allowable range is set so as to invalidate the input. That is, in a normal state, a relatively wide range (for example, 1 cm square) is set as the input allowable range 401 as shown in FIG. Note that the center position 402 is the center-of-gravity position coordinates of the contact area (the average value of a plurality of detected input coordinates).

  On the other hand, in a call state, a relatively narrow range (for example, 3 mm square) is set as the input allowable range 403 in order to prevent malfunctions with high accuracy. In this case, input by the belly of the finger or the like is not permitted, but input operation using a stylus (touch pen) or a thin stick is allowed, and there is no hindrance to the input operation.

  Further, as a detection reference, a threshold value (pressing force detection threshold value) related to the pressing force applied to the touch panel 109 can be used. Since the unintended contact with the touch panel 109 often has a weak pressing force, input by a pressing force that is weaker than the pressing force detection threshold is invalidated. In a normal state, a relatively low threshold is set in order to allow an input by the finger pad. For example, as shown in FIG. 5 (a), it is determined to be valid when pressed with a force of level 5 or higher at 10 levels, and is determined to be invalid when pressed with a weaker force.

  On the other hand, in a call state, a relatively high threshold is set in order to reliably prevent malfunction. For example, as shown in FIG. 5B, it is determined to be valid when pressed with a force of level 8 or higher at 10 levels, and is determined to be invalid when pressed with a weaker force. To do. If a stylus or the like is used, the pressing force concentrates on the tip of the stylus, so that the touch panel 109 can be easily pressed with a stronger force than when a finger or the like is used. Therefore, no trouble occurs in the input operation.

  Note that the grabs shown in FIGS. 5A and 5B show temporal changes in the pressing force at the time of input to the touch panel 109.

  As described above, by using the input allowable range and the pressing force detection threshold as the detection reference, it is possible to effectively prevent an erroneous input due to an unintended part of the body touching while allowing an input operation on the entire surface of the touch panel 109. Can be prevented. By adopting a combination of both the input allowable range and the pressing force detection threshold described above as detection standards, it is possible to prevent erroneous input more reliably.

  The above operations are summarized as shown in FIG.

  That is, when detecting the start of a call, the central control unit 105 sets a call flag in the input control unit 110 (S601).

  When detecting whether or not there is an input to the touch panel 109 (S602), the input control unit 110 determines whether or not a call is in progress based on whether or not the call flag is set (S603).

  Then, based on the determination result, the first detection criterion for the normal state or the second detection criterion for the call state is selected to determine whether the input is valid or invalid (S604, S605, S606).

  When it is determined that the input is valid, the input coordinate position is specified, and the specified input coordinate position is notified to the central control unit 105 (S607). On the other hand, when it is determined that the input is invalid, input to the touch panel 109 is waited.

  When detecting the end of the call, the central control unit 105 clears the call flag (S608).

  As described above, in communication terminal device 10 according to the present embodiment, even when a face or a part of a hand touches touch panel 109 during a voice call, the contact area is small or the pressing force is small. Since the input can be invalidated based on this, malfunction can be prevented. In addition, an input operation on the entire surface of the touch panel 109 can be performed by using a tapered stick such as a stylus while the call state is maintained.

  In the communication terminal device 10 according to the present embodiment, the input operation to the touch panel 109 is not limited, and the input operation can be performed on the entire surface of the touch panel 109. Therefore, the screen design (size and arrangement of function buttons and the like) is freely performed. be able to.

  Next, a communication terminal apparatus according to the second embodiment of the present invention will be described.

  The configuration of the communication terminal apparatus according to the present embodiment is almost the same as that according to the first embodiment, except that a connector for connecting an external earphone / microphone is connected to the central control unit 105. It is different. In the present embodiment, the central control unit 105 constituting the voice call means detects whether or not the external earphone / microphone is connected to the connector. When the external earphone / microphone is connected to the connector, the communication terminal device operates in a normal state.

  For example, an external earphone / microphone detection flag storage unit is provided in the input control unit 110, and the central control unit 105 detects whether or not the external earphone / microphone is connected, and sets or clears the external earphone / microphone detection flag. This can be achieved.

  The input control unit 110 as a determination unit determines whether or not the external earphone / microphone flag is set (whether the built-in earphone / microphone is used) when the call flag indicates that the call is in progress. When the external earphone / microphone flag is set, it is determined that the touch panel does not approach the user's face even in a call state, and the normal state is determined. When the external earphone / microphone flag is not set, it is determined that the built-in earphone / microphone is used, and the call state is determined.

  FIG. 7 shows a flowchart for explaining the operation of the communication terminal apparatus according to the second embodiment. The only difference between the flowchart of FIG. 7 and the flowchart of FIG.

  In the above description, the external earphone / microphone is connected to the connector (wired connection), but may be wirelessly connected. In the above description, the external earphone / microphone detection flag storage unit is provided, and the external earphone / microphone detection flag is set / cleared according to whether the external earphone / microphone is connected or not, but the external earphone / microphone is connected. When it is detected that the call is present, the call flag may be cleared. In any case, depending on whether or not the call is in a call state and whether or not an external earphone / microphone is connected, the detection criterion selection unit can select an appropriate detection criterion based on the determination result of the determination unit. The flag state of the storage area may be changed.

  Although the present invention has been described with reference to the embodiment, the present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention. For example, in the above embodiment, the voice call means is configured by a call processing program, a memory, a microphone, a speaker, a communication control unit, and a central control unit, and the determination unit and the reference selection unit are configured by an input control unit. However, other configurations may be employed as long as they have the same effects.

It is a block diagram which shows schematic structure of the communication terminal device which concerns on one embodiment of this invention. It is a flowchart which shows an example of the work performed using the communication terminal device of FIG. It is a block diagram which shows the structural example of the input control part contained in the communication terminal device of FIG. (A) is a figure for demonstrating the input allowable range in a normal state, (b) is a figure for demonstrating the input allowable range in a telephone call state. (A) is a graph for demonstrating the setting example of the pressing force detection threshold value in a normal state, (b) is a graph for demonstrating the setting example of the pressing force detection threshold value in a telephone call state. It is a flowchart for demonstrating operation | movement of the input control part of FIG. 2 in a telephone call state. It is a flowchart for demonstrating operation | movement of the input control part in the telephone call state of the communication terminal device which concerns on 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Communication terminal device 101 Control program 102 Business processing program 103 Call processing program 104 Memory 105 Central control part 106 Communication control part 107 Display part 108 Display control part 109 Touch panel 110 Input control part 111 Microphone 112 Speaker 301 Flag storage part 302 Detection reference storage Unit 303 Control unit

Claims (13)

In a communication terminal device comprising a voice call means and a touch panel,
Determining means for determining whether or not the voice call means is in a call state;
Reference selection means for selecting a detection reference used for input detection of the touch panel based on a determination result of the determination means;
A communication terminal device comprising: Having flag storage means;
The voice call means changes the flag state of the flag storage means according to whether or not it is in a call state,
The communication terminal apparatus according to claim 1, wherein the determination unit determines whether or not the voice call unit is in a call state according to a flag state of the flag storage unit.   The communication terminal apparatus according to claim 1, wherein the detection reference is a threshold value related to a contact area area to the touch panel.   The communication terminal apparatus according to claim 1, wherein the detection criterion is a threshold value related to a pressing force applied to the touch panel.   The communication terminal apparatus according to claim 1, wherein the detection criterion is a combination of a threshold value related to a contact area area to the touch panel and a threshold value related to a pressing force applied to the touch panel.   The voice call means detects the presence / absence of an external earphone / microphone connection, changes the flag state of the flag storage means according to the presence / absence of the external earphone / microphone, and the determination means enters the flag state. 6. The communication terminal apparatus according to claim 2, wherein the voice call unit determines whether or not the voice call unit is in a call state. As the voice call means, a call processing program, a memory, a microphone, a speaker, a communication control unit and a central control unit,
As the determination unit and the reference selection unit, an input control unit is provided.
The communication terminal device according to any one of claims 1 to 6, further comprising: In a touch panel input control method for a communication terminal device including a voice call means and a touch panel,
Determining whether the voice call means is in a call state;
Selecting a detection criterion used for input detection of the touch panel based on a determination result of the determination means;
A touch panel input control method for a communication terminal device, comprising: Further comprising the step of changing the flag state of the flag storage means according to the call state;
9. The touch panel input control method for a communication terminal device according to claim 8, wherein the determination step determines whether or not the voice call means is in a call state according to the flag state of the flag storage means.   10. The touch panel input control method for a communication terminal device according to claim 8, wherein the detection criterion is a threshold value relating to a contact area area to the touch panel.   10. The touch panel input control method for a communication terminal device according to claim 8, wherein the detection reference is a threshold value related to a pressing force applied to the touch panel.   10. The touch panel input control method for a communication terminal device according to claim 8, wherein the detection criterion is a combination of a threshold value related to a touch area on the touch panel and a threshold value related to a pressing force applied to the touch panel. .   13. The method according to claim 9, further comprising the step of detecting whether or not an external earphone / microphone is connected, and changing the flag state of the flag storage unit according to the presence / absence of the external earphone / microphone. The touch panel input control method of the communication terminal device according to claim 1.

Images