JP2014011507A - Cellular phone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent erroneous input from a touch panel reliably.SOLUTION: A cellular phone 100 includes a proximity sensor 6 for detecting an object P existing on the side facing a touch panel 2, a sensitivity adjustment unit 73 for adjusting the sensitivity of the proximity sensor 6, a speech start determination unit 72 for determining start of speech by telephone, and an operation prohibition unit 76 for prohibiting reception of an operation via the touch panel 2, when the speech start determination unit 72 determines start of speech by telephone, and the proximity sensor 6 detects existence of an object. When the speech start determination unit 72 determines start of speech by telephone, the sensitivity adjustment unit 73 increases the sensitivity of the proximity sensor 6.

Description

  The present invention relates to a mobile phone device configured to be operable through a touch panel.

  In recent years, various mobile phone devices such as smartphones configured to be operable via a touch panel have been proposed. In addition, when making a call with such a mobile phone device, various devices that turn off the touch panel (in other words, prohibit input from the touch panel) so that the touch panel does not malfunction by touching the ear or the like. A method has been proposed.

  For example, when the proximity sensor detects an approach to the human body, information input from the touch panel is prohibited, and when the detected acceleration output from the acceleration sensor exceeds a predetermined threshold, the sensitivity of the proximity sensor is set in advance. A mobile phone set to a higher sensitivity than the normal sensitivity is disclosed (see Patent Document 1). According to this mobile phone, erroneous input from the touch panel can be prevented even when the user brings the touch-panel-equipped mobile phone close to the ear or the like at a faster speed than usual.

JP 2011-61316 A

  However, in the mobile phone described in Patent Document 1, when the detected acceleration output from the acceleration sensor exceeds a predetermined threshold, the sensitivity of the proximity sensor is set to be higher than the normal sensitivity. In addition, since there is a possibility that the sensitivity of the proximity sensor cannot be adjusted properly, there is a case where erroneous input from the touch panel cannot be prevented.

  That is, in the mobile phone, when the predetermined threshold is not set to an appropriate value, the sensitivity of the proximity sensor cannot be adjusted appropriately. Specifically, when the predetermined threshold value is too small, the sensitivity of the proximity sensor is set to a sensitivity that is too high, and the proximity sensor may be overdetected. If the predetermined threshold is too large, the proximity sensor sensitivity may be set to the normal sensitivity (sensitivity too low) and the approach to the human body may not be detected.

  The present invention has been made in view of the above problems, and it is an object of the present invention to provide a mobile phone device that can reliably prevent erroneous input from a touch panel.

  In order to solve the above problems, a mobile phone device according to the present invention is configured as follows.

  That is, the mobile phone device according to the present invention is a mobile phone device configured to be operable via a touch panel, and includes a proximity sensor that detects an object existing on the side facing the touch panel, and the sensitivity of the proximity sensor. A sensitivity adjustment means for adjusting a telephone call, a call start determination means for determining that a telephone call is started, and the call start determination means determines that a telephone call is started, and the proximity sensor An operation prohibiting unit that prohibits acceptance of an operation through the touch panel when the presence of an object is detected, and the sensitivity adjustment unit starts a telephone call by the call start determining unit. If it is determined, the sensitivity of the proximity sensor is increased.

  According to the mobile phone device having such a configuration, the proximity sensor detects an object present on the side facing the touch panel. Further, when it is determined that a telephone call is started, the sensitivity of the proximity sensor is increased. Then, when it is determined that a telephone call is started and the presence of an object is detected by the proximity sensor, the acceptance of operations via the touch panel is prohibited. Input can be reliably prevented.

  That is, when it is determined that a telephone call is started, the sensitivity of the proximity sensor is increased, so that an object is easily detected by the proximity sensor. Therefore, when an object is present in the detection area of the proximity sensor, the object is surely detected by the proximity sensor, and acceptance of an operation through the touch panel is prohibited. It can be prevented.

  In the mobile phone device according to the present invention, when the call start determination unit receives a call operation or a call start operation at the time of incoming call via the touch panel, the phone call is started. Is preferably determined.

  According to the mobile phone device having such a configuration, it is determined that a telephone call is started when a call operation or a call start operation at the time of an incoming call is received via the touch panel. It is possible to accurately determine whether or not a telephone call is started.

  Here, in the present invention, the state where the “phone call is started” is not limited to the case where the phone call is actually started. This indicates a state where there is a possibility of performing an approaching action. For example, when a user performs a call operation to make a call, if the other party does not answer the call, the call on the phone will not start as a result. Even in this case, since the user may perform an operation of bringing his / her ear close to the touch panel, the present invention is included in the state where “phone call is started”.

  Further, the mobile phone device according to the present invention is preset from the time point when the call start determination unit determines that the telephone call is started and the sensitivity adjustment unit increases the sensitivity of the proximity sensor. The apparatus further comprises an overdetection determination unit that determines whether or not the proximity sensor has detected an object before the threshold time elapses, and the sensitivity adjustment unit detects the object by the proximity sensor by the overdetection determination unit. It is preferable to reduce the sensitivity of the proximity sensor when it is determined that the proximity sensor is used.

  According to the mobile phone device having such a configuration, a predetermined threshold time (for example, 0.1 second) is determined from the time when it is determined that the telephone call is started and the sensitivity of the proximity sensor is increased. By the time it elapses, it is determined whether or not the proximity sensor is detecting an object (overdetection state). And when it determines with the said proximity sensor detecting the object (it is an over-detection state), since the sensitivity of the said proximity sensor is lowered | hung, the sensitivity of the said proximity sensor can be set appropriately.

  That is, when the sensitivity of the proximity sensor is increased, for example, in the case where the proximity sensor is a reflective infrared sensor, infrared rays are emitted from the infrared light emitting element and constitute a part of the casing of the mobile phone device. There is a possibility that the infrared light reflected by the window is detected by the infrared light receiving element and it is determined that an object is present. Here, whether or not it is in such an overdetection state is determined here that a telephone call is started and the sensitivity of the proximity sensor is increased, a preset threshold time (for example, 0) .1 second), whether or not the proximity sensor has detected an object is determined. And when it is an over-detection state, since the sensitivity of the proximity sensor is lowered, the sensitivity of the proximity sensor can be set appropriately.

  In the mobile phone device according to the present invention, when the operation prohibiting unit determines that the telephone call is started by the call start determining unit, and the sensitivity of the proximity sensor is increased by the sensitivity adjusting unit. Therefore, it is preferable that the acceptance of an operation via the touch panel is prohibited when the proximity sensor detects that an object exists after the threshold time has elapsed.

  According to the mobile phone device having such a configuration, after the threshold time (for example, 0.1 second) has elapsed from the time when it is determined that a telephone call is started and the sensitivity of the proximity sensor is increased. When the proximity sensor detects that an object is present, acceptance of an operation through the touch panel is prohibited, so that erroneous input from the touch panel can be more reliably prevented.

  In the mobile phone device according to the present invention, the sensitivity adjustment unit is configured to be able to switch the sensitivity of the proximity sensor between a normal sensitivity and a high sensitivity, and a telephone call is started by the call start determination unit. The proximity sensor sensitivity is switched to high sensitivity, and the proximity sensor sensitivity is set to normal when the overdetection determination means determines that the proximity sensor is detecting an object. It is preferable to switch to sensitivity.

  According to the mobile phone device having such a configuration, the sensitivity of the proximity sensor is configured to be switchable between normal sensitivity and high sensitivity, and when it is determined that a telephone call is started, When the sensitivity is switched to high sensitivity and it is determined that the proximity sensor is detecting an object, the sensitivity of the proximity sensor is switched to normal sensitivity. Can be adjusted.

  In the mobile phone device according to the present invention, it is preferable that the operation prohibiting unit permits the reception of an operation via the touch panel when the proximity sensor does not detect the presence of an object.

  According to the mobile phone device having such a configuration, when the presence of an object is not detected by the proximity sensor, an operation input via the touch panel is permitted, and thus an erroneous input from the touch panel is appropriately prevented. can do.

  That is, when it is determined that the telephone call is started by the call start determination unit and the presence of an object is detected by the proximity sensor, the acceptance of the operation through the touch panel is temporarily prohibited. However, after that, if the proximity sensor does not detect the presence of an object, acceptance of an operation through the touch panel is permitted, so that erroneous input from the touch panel can be appropriately prevented. It is.

  The cellular phone device according to the present invention further includes prohibition operation ending means for ending the operation of the operation prohibition means when the call is ended and the presence of an object is not detected by the proximity sensor. It is preferable to provide.

  According to the mobile phone device having such a configuration, when the call is finished and the presence of an object is not detected by the proximity sensor, the operation of the operation prohibiting unit (that is, the operation via the touch panel is not detected). Since the operation for prohibiting reception is terminated, the operation for prohibiting acceptance of an operation via the touch panel can be terminated at an appropriate time.

  In the mobile phone device according to the present invention, it is preferable that the proximity sensor detects an object present in the vicinity of a speaker used for a call.

  According to the mobile phone device having such a configuration, an object existing in the vicinity of a speaker used for a call is detected by the proximity sensor, so that erroneous input from the touch panel can be more reliably prevented.

  In the mobile phone device according to the present invention, it is preferable that the proximity sensor includes an infrared light emitting element and an infrared light receiving element, and the sensitivity adjusting unit adjusts the sensitivity of the infrared light receiving element.

  According to the mobile phone device having such a configuration, since the proximity sensor includes an infrared light emitting element and an infrared light receiving element, and the sensitivity of the infrared light receiving element is adjusted, the proximity sensor can be realized with a simple structure. it can.

  According to the mobile phone device of the present invention, the proximity sensor detects an object present on the side facing the touch panel. Further, when it is determined that a telephone call is started, the sensitivity of the proximity sensor is increased. Then, when it is determined that a telephone call is started and the presence of an object is detected by the proximity sensor, the acceptance of operations via the touch panel is prohibited. Input can be reliably prevented.

  That is, when it is determined that a telephone call is started, the sensitivity of the proximity sensor is increased, so that an object is easily detected by the proximity sensor. Therefore, when an object is present in the detection area of the proximity sensor, the object is surely detected by the proximity sensor, and acceptance of an operation through the touch panel is prohibited. It can be prevented.

It is a front view which shows an example of the external appearance of the mobile telephone apparatus which concerns on this invention. It is a block diagram which shows the structure of the mobile telephone apparatus shown in FIG. It is a conceptual diagram which shows an example of the detection range of the proximity sensor shown in FIG. It is sectional drawing which shows an example of a structure of the proximity sensor shown in FIG. It is a block diagram which shows an example of a function structure of the mobile telephone apparatus shown in FIG. It is a screen figure which shows an example of the screen displayed on the mobile telephone apparatus shown in FIG. 3 is a flowchart (first half) illustrating an example of an operation of the mobile phone device illustrated in FIG. 1. 3 is a flowchart (second half) illustrating an example of the operation of the mobile phone device illustrated in FIG. 1.

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

-Basic structure of mobile phone device-
First, the basic structure of the mobile phone device 100 according to the present invention will be described with reference to FIG. FIG. 1 is a front view showing an example of an appearance of a mobile phone device 100 according to the present invention. The mobile phone device 100 is a mobile phone device configured to be operable via a touch panel. As shown in FIG. 1, the mobile phone device 100 is here configured as a so-called smartphone, and includes a housing 1, a touch panel 2, an LCD 3, and a speaker 4. , A microphone 5, a proximity sensor 6, and an operation key 11.

  The housing 1 houses the touch panel 2, the LCD 3, the speaker 4, the microphone 5, the proximity sensor 6, and the operation key 11, and is made of resin, stainless steel, or the like. The operation key 11 receives a pressing operation from the user. When the operation key 11 is pressed, for example, a menu screen (initial screen) is displayed on the LCD 3. On the menu screen, for example, various icons are displayed so as to be selectable. When the touch panel 2 detects that the icon displayed on the menu screen has been touched by the user, an application program (for example, an application program having a telephone function) linked to the touched icon is executed. The

  The touch panel 2 detects the position of the fingertip that comes into contact (touch or point) with the touch panel 2. For example, the touch panel 2 determines the position based on a change in capacitance between the fingertip and the conductive film. It is a capacitive touch panel to detect. The touch panel 2 is disposed integrally with the LCD 3 on the upper surface of the LCD 3.

  An LCD (Liquid Crystal Display) 3 is, for example, a color display that displays various images, and is disposed integrally with the touch panel 2 on the lower surface of the touch panel 2. On the LCD 3, for example, a reception screen 200, a calling screen 210 and the like shown in FIG. 6 are displayed.

  The speaker 4 outputs the voice (mainly the voice of the other party) input to the telephone of the other party during a call. The user of the mobile phone device 100 operates to bring his / her ear close to the speaker 4 in order to hear the sound output from the speaker 4 during a call.

  The microphone 5 is used to input a voice (mainly a user's voice) to be output to the telephone at the other end of the call. The user of the mobile phone device 100 points the microphone 5 toward his / her mouth in order to input the user's voice to the microphone 5.

  The proximity sensor 6 is a sensor that detects an object that is present on the side facing the touch panel 2, and here, includes a reflective infrared sensor (see FIG. 4) and the like. Further, the proximity sensor 6 is disposed in the vicinity of the speaker 4 and detects an object (for example, a user's ear, hair, etc.) existing in the vicinity of the speaker 4.

  In this manner, since the proximity sensor 6 detects an object that exists in the vicinity of the speaker 4 used for a call, erroneous input from the touch panel 2 can be reliably prevented. That is, when a telephone call is started, the user performs an operation of bringing his / her ear close to the touch panel 2, so that an erroneous input from the touch panel 2 may occur. When an object P existing in the vicinity of the speaker 4 is detected, an input operation from the touch panel 2 is prohibited, and thus erroneous input from the touch panel 2 can be prevented.

  In the present embodiment, the case where the proximity sensor 6 is disposed in the vicinity of the speaker 4 will be described. However, if the proximity sensor 6 is configured to be able to detect the object P existing in the vicinity of the speaker 4. Good.

-Configuration of mobile phone device-
Next, the configuration of the mobile phone device 100 will be described with reference to FIG. FIG. 2 is a block diagram showing a configuration of the mobile phone device 100 shown in FIG. As shown in FIG. 2, in addition to the touch panel 2, the LCD 3, the speaker 4, the microphone 5, and the proximity sensor 6 described with reference to FIG. 1, the mobile phone device 100 includes a display control unit 31, an audio output control unit. 41, a voice input control unit 51, a sensor control unit 61, a CPU 7, a memory 8, a communication control unit 9, and an antenna 91.

  The display control unit 31, the audio output control unit 41, the audio input control unit 51, and the sensor control unit 61 are interposed between the LCD 3, the speaker 4, the microphone 5, and the proximity sensor 6 and the CPU 7, respectively. The LCD 3, the speaker 4, the microphone 5, and the proximity sensor 6 are controlled in accordance with instructions from the CPU 7.

  A CPU (Central Processing Unit) 7 controls the entire mobile phone device 100 and functions as various functional units by reading and executing a control program stored in a ROM (Read Only Memory) or the like. (See FIG. 5).

  The memory 8 includes a flash memory (non-volatile memory) such as an SD card, and stores various data such as application programs in a readable and writable manner. The memory 8 stores phone book data for storing name information and telephone number information in association with each other. For example, an application program having a telephone function refers to the telephone directory data and displays the telephone number of the other party the user desires to call on the LCD 3 so as to be selectable.

  The communication control unit 9 communicates various data with the base station via the antenna 91. For example, during a call, the communication control unit 9 transmits and receives audio data. Further, during a call, the other party's telephone device (or mobile phone device) is communicably connected to a base station to which the mobile phone device 100 is communicably connected, and the mobile phone device 100 and the other party's telephone device ( Alternatively, a call with a mobile phone device) is possible.

-Configuration of proximity sensor-
Next, the configuration of the proximity sensor 6 will be described with reference to FIGS. 3 and 4. FIG. 3 is a conceptual diagram showing an example of a detection range of the proximity sensor 6 shown in FIG. FIG. 4 is a cross-sectional view showing an example of the configuration of the proximity sensor 6 shown in FIG.

  3A is a side view of the mobile phone device 100 shown in FIG. 1, and FIG. 3B is a top view of the mobile phone device 100 shown in FIG. The detection region R is formed in an elongated inverted cone shape having the proximity sensor 6 as a vertex so as to detect the object P existing on the side facing the touch panel 2 from the proximity sensor 6. Further, as shown in FIG. 3B, the proximity sensor 6 is disposed in the vicinity of the speaker 4, so that an object P (for example, a user's ear, Hair, etc.) can be detected.

  Next, the configuration of the proximity sensor 6 will be described with reference to FIG. FIG. 4 is a cross-sectional view taken along the line AA in FIG. As shown in FIG. 4, the proximity sensor 6 is a reflective infrared sensor, and includes a sensor control unit 61, an infrared light emitting element 62, and an infrared light receiving element 63.

  The infrared light emitting element 62 is an element such as a light emitting diode (LED) that emits infrared light in accordance with an instruction from the CPU 7 via the sensor control unit 61. The infrared light emitting element 62 is molded and fixed on a substrate (not shown) with a light-transmitting resin 621.

  The infrared light receiving element 63 is an element such as a photodiode that receives infrared light in accordance with an instruction from the CPU 7 via the sensor control unit 61. The infrared light receiving element 63 is molded and fixed on a substrate (not shown) with a resin 631 having translucency.

  The sensor control unit 61 controls the proximity sensor 6 in accordance with an instruction from the CPU 7, and includes, for example, an IC (Integrated Circuit). The sensor control unit 61 is molded and fixed on a substrate (not shown) with a light-shielding resin 611. Specifically, the sensor control unit 61 instructs the infrared light emitting element 62 to emit light in accordance with an instruction from the CPU 7. Further, the sensor control unit 61 sets the sensitivity S for the infrared light receiving element 63 in accordance with an instruction from the CPU 7. Further, the sensor control unit 61 outputs a signal indicating whether or not the object P is detected by the infrared light receiving element 63 to the CPU 7.

  A sensor window 12 is disposed between the infrared light emitting element 62 and the object P. The sensor window 12 is formed of a light-transmitting resin and constitutes a part of the housing 1 shown in FIG. A support member 14 that supports the sensor window 12 is disposed around the sensor window 12. The support member 14 is made of a resin having a light shielding property and constitutes a part of the housing 1 shown in FIG. The sensor window 12 is formed with a coating 13 that prevents moisture, dirt, and the like from adhering to the sensor window 12.

  As shown in FIG. 4, the infrared LA emitted from the infrared light emitting element 62 sequentially passes through the resin 621 and the sensor window 12 and is reflected by an object P such as an ear or hair. Then, the reflected light LB sequentially passes through the sensor window 12 and the resin 631 and reaches the infrared light receiving element 63, and the presence of the object P is detected. Moreover, since the proximity sensor 6 includes the infrared light emitting element 62 and the infrared light receiving element 63 and the sensitivity of the infrared light receiving element 63 is adjusted by the sensor control unit 61, the proximity sensor 6 can be realized with a simple configuration.

  In this embodiment, the case where the proximity sensor 6 is a reflective infrared sensor will be described. However, the proximity sensor 6 may be a sensor of another type (capacitance type).

-Functional configuration of mobile phone device-
Next, the functional configuration of the mobile phone device 100 will be described with reference to FIG. FIG. 5 is a block diagram showing an example of a functional configuration of the mobile phone device 100 shown in FIG. The CPU 7 functionally reads and executes a control program stored in a ROM (Read Only Memory) or the like, thereby functionally receiving an operation accepting unit 71, a call start determining unit 72, a sensitivity adjusting unit 73, an overdetection determining unit 74, It functions as an object detection unit 75, an operation prohibition unit 76, a prohibition operation end unit 77, and the like. Here, the operation reception unit 71, the call start determination unit 72, the sensitivity adjustment unit 73, the over detection determination unit 74, the object detection unit 75, the operation prohibition unit 76, and the prohibition operation end unit 77 are related to the present invention. It constitutes a part of “mobile phone device 100”.

  The operation receiving unit 71 is a functional unit that receives an operation input via the touch panel 2. However, when the operation prohibition unit 76 prohibits the reception of an operation via the touch panel 2, the operation reception unit 71 follows the instruction (does not accept the operation input).

  The call start determination unit 72 is a functional unit that determines that a telephone call is started. Here, the call start determination unit 72 corresponds to “call start determination unit” recited in the claims. In addition, the call start determination unit 72 starts the telephone call when the operation reception unit 71 receives a call operation or a call start operation at the time of incoming call via the touch panel 2. It is determined that

  Here, the “calling operation” is an operation of making a call by selecting the telephone number of the mobile phone device (or fixed phone device) of the other party to be called. Further, the “call start operation” is an operation for starting a call when there is an incoming call from the other party's mobile phone device (or fixed phone device).

  However, in the present invention, the state where the “phone call is started” is not limited to the case where the phone call is actually started, and the user brings his ear close to the touch panel 2 in order to make a call. It indicates a state that may cause an action. For example, when a user performs a call operation to make a call, if the other party does not answer the call, the call on the phone will not start as a result. Even in this case, since the user may perform an operation of bringing his / her ear close to the touch panel 2, the present invention is included in the state where “phone call is started”.

  Here, an example of a call start operation will be described with reference to FIG. FIG. 6A is a screen diagram showing an example of an incoming call screen 200 displayed on the LCD 3 by the CPU 7 when the incoming call is detected by the CPU 7. On the incoming call screen 200, a message display unit 201, a call button 202, and a reject button 203 are displayed.

  The message display unit 201 displays the name (or telephone number) of the called party, and here, “Mr. XX makes a call” is displayed.

  The call button 202 is a button that is touched when the user starts a call. The touch of the call button 202 is received by the operation receiving unit 71 via the touch panel 2. When the call button 202 is touched, a call operation (audio signal transmission / reception operation) is started based on an instruction from the CPU 7. An operation of touching the call button 202 corresponds to a “call start operation”.

  The reject button 203 is a button that is touched when the user rejects the call. Note that the touch of the reject button 203 is accepted by the operation accepting unit 71 via the touch panel 2. When the reject button 203 is touched, for example, some message (for example, “I can't answer the phone now”) is sent to the called party as voice guidance based on an instruction from the CPU 7. Be notified.

  As described above, when a call operation or a call start operation at the time of an incoming call is accepted via the touch panel 2, it is determined that the phone call is started, so the phone call is started. It can be accurately determined whether or not.

  Returning to FIG. 5 again, the functional configuration of the CPU 7 will be described.

  The sensitivity adjustment unit 73 is a functional unit that increases the sensitivity of the proximity sensor 6 when the call start determination unit 72 determines that a telephone call is started. Here, the sensitivity adjustment unit 73 corresponds to “sensitivity adjustment means” recited in the claims. In the present embodiment, a case where the sensitivity of the proximity sensor 6 is configured to be switchable between two levels of “normal sensitivity SL” and “high sensitivity SH” will be described. That is, the sensitivity adjustment unit 73 switches the sensitivity of the proximity sensor 6 from “normal sensitivity SL” to “high sensitivity SH” when the call start determination unit 72 determines that a telephone call is started. Further, the sensitivity adjustment unit 73 sets the sensitivity of the proximity sensor 6 to “high sensitivity SH” when it is determined by the over detection determination unit 74 that the proximity sensor 6 detects an object (in an over detection state). To “Normal sensitivity SL”.

  Thus, the sensitivity of the proximity sensor 6 can be switched between “normal sensitivity SL” and “high sensitivity SH”, and when it is determined that a telephone call is started, the proximity sensor 6 When the sensitivity is switched to “high sensitivity SH” and it is determined that the proximity sensor 6 detects an object (in an over-detection state), the sensitivity of the proximity sensor 6 is switched to “normal sensitivity SL”. Therefore, the sensitivity of the proximity sensor 6 can be appropriately adjusted with a simple configuration.

  In the present embodiment, a case where the sensitivity of the proximity sensor 6 is configured to be switchable between “normal sensitivity SL” and “high sensitivity SH” will be described. However, the sensitivity of the proximity sensor 6 has three or more stages (or It may be configured to be switchable in a stepless manner. In this case, the sensitivity of the proximity sensor 6 can be adjusted more appropriately. Specifically, for example, when it is determined that a telephone call is started, the sensitivity of the proximity sensor 6 is set to the highest sensitivity, and the overdetection determination unit 74 determines that it is in an overdetection state. If so, the sensitivity of the proximity sensor 6 may be lowered step by step until the overdetection determination unit 74 does not determine that the overdetection state occurs.

  The overdetection determination unit 74 determines that the telephone call is started by the call start determination unit 72 and the sensitivity adjustment unit 73 increases the sensitivity of the proximity sensor 6, so that the threshold time Tsh ( For example, it is a functional unit that determines whether or not the proximity sensor 6 has detected an object (is in an overdetection state) before 0.1 seconds). Here, the overdetection determination unit 74 corresponds to “overdetection determination unit” recited in the claims.

  That is, when the sensitivity of the proximity sensor 6 is increased, infrared light is emitted from the infrared light emitting element 62 and attached to the sensor window 12 or the film 13 (or the film 13) constituting a part of the housing 1 of the mobile phone device 100. Infrared light reflected by the dirt or the like may be detected by the infrared light receiving element 63 to determine that an object is present. Here, whether or not it is in such an overdetection state is set in advance from the time when it is determined that a telephone call is started and the sensitivity of the proximity sensor 6 is increased to “high sensitivity SH”. This determination is made based on whether or not the proximity sensor 6 has detected an object before the threshold time Tsh (for example, 0.1 second) elapses. Therefore, it is possible to accurately determine whether or not the state is an overdetection state with a simple configuration.

  The determination of whether or not the over-detection unit 74 is in an over-detection state is “from the time when it is determined that a telephone call is started and the sensitivity of the proximity sensor 6 is increased to“ high sensitivity SH ”. As a precondition, the proximity sensor 6 will not detect an object P (for example, a user's ear, hair) before a preset threshold time Tsh (for example, 0.1 second) elapses. Yes. Here, immediately before it is determined that the telephone call is started, a call operation or a call start operation at the time of an incoming call is accepted via the touch panel 2, so the user presses the touch panel 2 with his fingertip. It is operating. Therefore, from the operation of the touch panel 2, a position where the user can detect the proximity sensor 6 disposed with the ear close to the speaker 4 (for example, within 10 cm directly above the proximity sensor 6 as shown in FIG. 3). Therefore, it is assumed that a predetermined time Tm (e.g., 0.5 seconds) or more has passed, so the above precondition is satisfied.

  In the present embodiment, the proximity detection unit 74 determines whether or not the proximity sensor 6 has detected an object before the threshold time Tsh elapses from the time when the sensitivity of the proximity sensor 6 is increased. Although the case where it is determined whether or not is in an overdetection state will be described, the overdetection determination unit 74 may determine whether or not the proximity sensor 6 is in an overdetection state by another method. For example, the proximity sensor 6 determines whether the position of the object P detected by the proximity sensor 6 is within a preset range (for example, a position within 1 cm from the proximity sensor 6). It may be a form that determines whether or not it is an overdetection state. The distance from the proximity sensor 6 to the object P is measured, for example, by the time from when the infrared light LA is emitted from the infrared light emitting element 62 until the reflected light LB from the object P is incident on the infrared light receiving element 63. (See FIG. 4).

  The object detection unit 75 determines the threshold time Tsh (for example, 0. 0) from the time when the call start determination unit 72 determines that the telephone call is started and the sensitivity adjustment unit 73 increases the sensitivity of the proximity sensor 6. This is a functional unit that determines whether or not an object is detected by the proximity sensor 6 after 1 second). Here, the object detection unit 75 corresponds to a part of “operation prohibiting means” described in the claims.

  The operation prohibition unit 76 is a functional unit that prohibits acceptance of an operation via the touch panel 2 when it is determined by the object detection unit 75 that the object P is detected. Here, the operation prohibition unit 76 corresponds to a part of the “operation prohibition unit” described in the claims.

  Specifically, the operation prohibition unit 76 determines the threshold time Tsh from the time when the call start determination unit 72 determines that the telephone call is started and the sensitivity adjustment unit 73 increases the sensitivity of the proximity sensor 6. When the proximity sensor 6 detects that an object is present after the elapse of time, the operation receiving unit 71 is instructed to prohibit operation reception via the touch panel 2, and the operation receiving unit is operated according to this instruction. 71 will be in the state which does not receive the operation input via the touch panel 2. FIG.

  In addition, when the operation prohibiting unit 76 once prohibits the reception of the operation via the touch panel 2, and when the object detection unit 75 determines that the object is not present, the operation prohibiting unit 76 passes the touch panel 2. Accepting operations is allowed.

  As described above, after the threshold time Tsh (for example, 0.1 second) has elapsed from the time when it is determined that the telephone call is started and the sensitivity of the proximity sensor 6 is increased, the object is detected by the proximity sensor 6. When the presence of P is detected, the acceptance of the operation through the touch panel 2 is prohibited, so that erroneous input from the touch panel 2 can be reliably prevented.

  That is, when the user starts to make a telephone call, when the user brings his ear close to the speaker 4, the reception of the operation through the touch panel 2 is prohibited. By abutting, it is possible to reliably prevent an erroneous input from the touch panel 2 from occurring.

  Further, the object P is detected by the proximity sensor 6 until a threshold time Tsh (for example, 0.1 second) elapses from the time when it is determined that the telephone call is started and the sensitivity of the proximity sensor 6 is increased. Even if the presence is detected, the acceptance of the operation via the touch panel 2 is not prohibited, so that the acceptance of the operation of the touch panel 2 due to excessive detection of the proximity sensor 6 is avoided. Can do.

  In the present embodiment, the case where the threshold time Tsh is set in advance will be described. However, a configuration in which the user can set the value of the threshold time Tsh may be employed. In this case, since the user can set the threshold time Tsh to a value suitable for his / her operation, convenience can be improved.

  In addition, when the proximity sensor 6 does not detect the presence of an object, acceptance of an operation through the touch panel 2 is permitted, and thus erroneous input from the touch panel 2 can be appropriately prevented.

  That is, when it is determined by the call start determination unit 72 that the telephone call is started and the presence of an object is detected by the proximity sensor 6, the acceptance of the operation via the touch panel 2 is temporarily prohibited. However, after that, if the proximity sensor 6 does not detect the presence of an object, the acceptance of the operation through the touch panel 2 is permitted, so that erroneous input from the touch panel 2 can be prevented appropriately. It can be done.

  The prohibition operation ending unit 77 is a functional unit that ends the operation of the operation prohibition unit 76 when the call ends and when the proximity sensor 6 does not detect the presence of the object P. Here, the prohibition operation end unit 77 corresponds to “prohibition operation end means” described in the claims. Specifically, “end of the call” is recognized, for example, when a call end operation is accepted via the touch panel 2 or when communication with the call partner is disconnected.

  Here, an example of a call end operation will be described with reference to FIG. FIG. 6B is a screen diagram illustrating an example of a call-in-progress screen 210 displayed on the LCD 3 by the CPU 7 when the CPU 7 detects that the call is in progress. On the call screen 210, a message display section 211 and an end button 212 are displayed.

  The message display unit 211 displays the name (or telephone number) of the other party who is in a call, and here, “Calling Mr. XX” is displayed.

  The end call button 212 is a button that is touched when the call is ended. Note that the touch of the end call button 212 is received by the operation receiving unit 71 via the touch panel 2. When the call end button 212 is touched, the call operation (audio signal transmission / reception operation) is ended based on an instruction from the CPU 7.

As described above, when the call is ended and the presence of an object is not detected by the proximity sensor 6, the operation of the operation prohibiting unit 76 (that is, an operation of prohibiting reception of an operation through the touch panel 2). Therefore, the operation for prohibiting the acceptance of the operation through the touch panel 2 can be terminated at an appropriate time.
Next, the operation of the cellular phone device 100 according to the present invention will be described with reference to FIGS. 7 and 8 are flowcharts showing an example of the operation of the cellular phone device 100 (mainly the CPU 7) shown in FIG. First, as shown in FIG. 7, the call start determination unit 72 determines whether or not a telephone call is started (step S101). If NO in step S101, the process is in a standby state. If YES in step S101, the process proceeds to step S103.

  Then, the sensitivity adjustment unit 73 sets the sensitivity of the proximity sensor 6 to “high sensitivity SH” (step S103). Next, the detection result of the proximity sensor 6 is acquired by the over detection determination unit 74 (step S105). Next, the over detection determination unit 74 determines whether or not an object is detected by the proximity sensor 6 based on the detection result acquired in step S105 (step S107). If NO in step S107, the process proceeds to step S111. If YES in step S107, the process proceeds to step S109. Then, the overdetection determination unit 74 determines that the state is an overdetection state, and the sensitivity adjustment unit 73 sets the sensitivity of the proximity sensor 6 to “normal sensitivity SL” (step S109).

  In the case of NO in step S107, or when the process of step S109 is completed, the threshold time Tsh (from the time when the sensitivity of the proximity sensor 6 is set to “high sensitivity SH” in step S103 by the object detection unit 75. Here, it is determined whether or not α seconds have elapsed (step S111). In the case of NO at step S111, the process is returned to step S105, and the processes after step S105 are repeatedly executed. If YES in step S111, the process proceeds to step S113 shown in FIG.

  Next, as shown in FIG. 8, the detection result of the proximity sensor 6 is acquired by the object detection unit 75 (step S113). Then, the object detection unit 75 determines whether an object is detected by the proximity sensor 6 based on the detection result acquired in step S113 (step S115). If YES in step S115, the process proceeds to step S117, and the operation prohibition unit 76 prohibits acceptance of an operation via the touch panel 2 (step S117). In the case of NO in step S115, the process proceeds to step S119, and the operation prohibition unit 76 permits the reception of an operation via the touch panel 2 (step S119).

  When the process of step S117 ends, or when the process of step S119 ends, the prohibition operation end unit 77 determines whether the call is ended (step S121). In the case of NO at step S121, the process is returned to step S113, and the processes after step S113 are repeatedly executed. If YES in step S121, the process proceeds to step S123.

  Then, the detection result of the proximity sensor 6 is acquired by the prohibition operation end unit 77 (step S123). Then, the prohibition operation end unit 77 determines whether or not an object is detected by the proximity sensor 6 based on the detection result acquired in step S123 (step S125). In the case of NO at step S125, the process returns to step S123, and the processes after step S123 are repeatedly executed. If YES in step S125, the process proceeds to step S127. Then, the operation of the operation prohibition unit 76 is ended by the prohibition operation end unit 77, and the acceptance of the operation via the touch panel 2 is permitted (step S127). Next, the sensitivity adjustment unit 73 sets the sensitivity of the proximity sensor 6 to “normal sensitivity SL” (step S129), and the process returns.

  In this way, the proximity sensor 6 detects the object P present on the side facing the touch panel 2. Further, when it is determined that a telephone call is started, the sensitivity of the proximity sensor 6 is increased. When it is determined that the telephone call is started and the presence of the object P is detected by the proximity sensor 6, the reception of the operation via the touch panel 2 is prohibited. Can be reliably prevented.

  That is, when it is determined that a telephone call is started, the sensitivity of the proximity sensor 6 is increased, so that the object P is easily detected by the proximity sensor 6. Therefore, when the object P exists in the detection area of the proximity sensor 6, the object P is reliably detected by the proximity sensor 6, and the acceptance of the operation through the touch panel 2 is prohibited. Can be reliably prevented.

-Other embodiments-
In the present embodiment, the cellular phone device 100 (CPU 7) is operated by the operation accepting unit 71, the call start determining unit 72, the sensitivity adjusting unit 73, the overdetection determining unit 74, the object detecting unit 75, the operation prohibiting unit 76, and the prohibition operation end. The operation receiving unit 71, the call start determination unit 72, the sensitivity adjustment unit 73, the overdetection determination unit 74, the object detection unit 75, the operation prohibition unit 76, and the prohibition operation will be described. At least one functional unit of the end unit 77 may be configured by hardware such as an electronic circuit.

  The present invention can be used for a mobile phone device configured to be operable via a touch panel.

DESCRIPTION OF SYMBOLS 100 Mobile phone device 1 Case 11 Operation key 12 Sensor window 2 Touch panel 3 LCD
4 Speaker 5 Microphone 6 Proximity Sensor 61 Sensor Control Unit 62 Infrared Light Emitting Element 63 Infrared Light Receiving Element 7 CPU
71 Operation Accepting Unit 72 Call Start Determination Unit (Call Start Determination Unit)
73 Sensitivity adjuster (sensitivity adjuster)
74 Overdetection determination unit (overdetection determination means)
75 Object detection part (part of operation prohibition means)
76 Operation prohibition part (part of operation prohibition means)
77 Prohibited operation end section (prohibited operation end means)
8 Memory 9 Communication control unit

Claims (9)

A mobile phone device configured to be operable via a touch panel,
A proximity sensor for detecting an object present on the side facing the touch panel;
Sensitivity adjusting means for adjusting the sensitivity of the proximity sensor;
A call start determining means for determining that a telephone call is started;
An operation prohibiting means for prohibiting acceptance of an operation through the touch panel when it is determined by the call start determining means that a telephone call is started and an object is detected by the proximity sensor. And comprising
The mobile phone apparatus according to claim 1, wherein the sensitivity adjustment means increases the sensitivity of the proximity sensor when it is determined by the call start determination means that a telephone call is started. The mobile phone device according to claim 1,
The call start determination means determines that a telephone call is started when a call operation or a call start operation at the time of an incoming call is received via the touch panel. . The mobile phone device according to claim 1 or 2, wherein
From the time when the call start determination means determines that a telephone call is started and the sensitivity of the proximity sensor is increased by the sensitivity adjustment means, the proximity sensor elapses until a preset threshold time elapses. Further comprises overdetection determination means for determining whether or not an object is detected;
The sensitivity adjustment unit reduces the sensitivity of the proximity sensor when the over detection determination unit determines that the proximity sensor detects an object. The mobile phone device according to claim 3, wherein
The operation prohibiting means is determined to start a telephone call by the call start determining means, and after the threshold time has elapsed from when the sensitivity of the proximity sensor is increased by the sensitivity adjusting means, A cellular phone device that prohibits acceptance of an operation through the touch panel when the proximity sensor detects the presence of an object. The mobile phone device according to claim 3 or claim 4,
The sensitivity adjustment unit is configured to be able to switch the sensitivity of the proximity sensor between a normal sensitivity and a high sensitivity, and when the call start determination unit determines that a telephone call is started, the proximity sensor The sensitivity of the proximity sensor is switched to the normal sensitivity when it is determined by the overdetection determination means that the proximity sensor detects an object. . The mobile phone device according to any one of claims 1 to 5,
The mobile phone device, wherein the operation prohibiting unit permits an operation to be accepted through the touch panel when the proximity sensor does not detect the presence of an object. The mobile phone device according to any one of claims 1 to 6,
A cellular phone device further comprising prohibition operation ending means for ending the operation of the operation prohibiting means when the call is ended and the presence of an object is not detected by the proximity sensor. The mobile phone device according to any one of claims 1 to 7,
The proximity sensor detects an object present in the vicinity of a speaker used for a call. The mobile phone device according to any one of claims 1 to 8,
The proximity sensor includes an infrared light emitting element and an infrared light receiving element,
The mobile phone apparatus, wherein the sensitivity adjustment means adjusts the sensitivity of the infrared light receiving element.

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