JP5755268B2 - Mobile communication terminal - Google Patents

Description

  The present invention relates to a mobile communication terminal, and more particularly to a mobile communication terminal including an external sensor such as a touch panel, an acceleration sensor, and a photo sensor.

An example of this type of device is disclosed in Patent Document 1. According to this background art, the foldable mobile phone includes a touch panel that allows a user to tap with a finger or a touch pen to perform an input operation sensuously, and a first casing and a second casing that are folded together. A direction sensor for detecting the vertical relationship with the body is provided as an external sensor. Moreover, although not specified in Patent Document 1, generally used mobile phones include a photo sensor that detects the amount of external light in order to adjust the brightness of the backlight of the liquid crystal display device. .
JP 2006-279769 A [H04M 1/02, G09F 9/00]

  However, since today's mobile phones including the background art of Patent Document 1 include a plurality of external sensors, more power is required to ensure the operation of the external sensors, and the limited battery There is a problem that the power consumption of the system is accelerated.

  Therefore, a main object of the present invention is to provide a novel portable communication terminal.

  The present invention employs the following configuration in order to solve the above problems. The reference numerals in parentheses, supplementary explanations, and the like indicate the corresponding relationship with the embodiments described in order to help understanding of the present invention, and do not limit the present invention.

The first invention includes a display unit, a power supply unit that supplies power of a predetermined voltage from the battery, a touch panel that is supplied with power from the power supply unit and is disposed on the upper surface of the display unit, a connection unit that is connected to an external device, and a telephone call A determination unit that determines whether there is a possibility that a function operation other than a call is performed, and a determination unit determines that there is no possibility that a function operation other than a call is performed during a call When the standby state in which battery power consumption is suppressed is set on the touch panel and the determination unit determines that there is a possibility that a function operation other than a call may be performed during a call, the active state is set on the touch panel. A control unit for setting, and when the external device is connected to the connection unit, the determination unit determines that there is a possibility that a functional operation other than a call may be performed. After call When operation of the function is determined with the possibility that there be done, if setting the active state before the call start when an application corresponding to the touch input is performed to continue the active state, the mobile communication terminal It is.

In the first invention, a touch panel is disposed on the upper surface of the display unit. Battery power is supplied from the power unit to the touch panel. The connection unit is, for example, an earphone jack, to which the earphone is connected. The determination unit determines whether there is a possibility that a function operation such as a hands-free function is performed during a call. For example, the determination unit determines that the hands-free function may be performed when the connection unit is connected to the earphone. When it is determined that there is no possibility of performing a functional operation other than a call during a call, the control unit sets a standby state in which the power consumption of the battery is suppressed on the touch panel. On the other hand, when the determination unit determines that there is a possibility that a function operation other than a call is performed during a call, the control unit sets the active state on the touch panel. The control unit, when the determination unit during a call start function operation other than the call is determined that could be made there, sets the active state before the call start when an application corresponding to the touch input is performed if, and to continue the active state.

According to the first invention, the state of the mobile communication terminal is determined, and if the operation of the touch panel is necessary based on the determination result, the touch panel is set to the active state, and if the operation is not required, the touch panel is set to the standby state. Consumption can be reduced.

A second invention is according to the first invention, a plurality of keys, further comprising a key input unit for accepting an input by a user, the control unit is a busy setting the standby state to the touch panel If an input by the user is received by the key input unit, processing corresponding to the input is executed .

In the second invention, when a key is input by the user while a call is in progress and the standby state is set on the touch panel, the control unit executes processing corresponding to the key input.

The third invention includes a display unit, a power supply unit that supplies power of a predetermined voltage from the battery, a touch panel disposed on the upper surface of the display unit, a connection unit connected to an external device, and a function other than a call during a call A determination unit that determines whether or not there is a possibility that an operation is performed, and when the determination unit determines that there is no possibility that a function operation other than a call is performed during a call, input by the user to the touch panel The second setting for accepting input by the user to the touch panel when the first setting that is not accepted is set in the own device and the judgment unit judges that there is a possibility that a function operation other than the call is performed during a call. The control unit determines that there is a possibility that a function operation other than a call may be performed when an external device is connected to the connection unit, and the control unit opens the call. When during determination unit function operation other than the call is determined that could be made there, the second set before a call begins when the application corresponding to the touch input is performed only to set the own device For example, the mobile communication terminal continues the second setting.

In the third invention, a touch panel is disposed on the upper surface of the display unit. The power of the battery is supplied to each unit by the power unit. The connection unit is, for example, an earphone jack, to which the earphone is connected. The determination unit determines whether there is a possibility that a function operation such as a hands-free function is performed during a call. For example, the determination unit determines that the hands-free function may be performed when the connection unit is connected to the earphone. When it is determined that there is no possibility of performing a functional operation other than a call during a call, a first setting for not accepting an input by the user on the touch panel is set in the mobile communication terminal. On the other hand, if it is determined that there is a possibility that a function operation other than a call is performed during a call, a second setting for accepting an input by the user on the touch panel is set in the mobile communication terminal. Then, when the determination unit determines that there is a possibility that a function operation other than the call may be performed at the start of the call, the control unit performs the second setting before the call starts when the application corresponding to the touch input is executed. if the long set to ship to continue the second set.

According to the third invention, to determine the state of the mobile communication terminal, since it is possible to set whether touch panel receives an input based on the determination result, Ru is suppressed power consumption.

The fourth invention is dependent on the third invention, and the power of the battery consumed in the first setting is smaller than the power of the battery consumed in the second setting .

The fifth invention is dependent on the third invention, and when the first setting is set, a standby state in which power consumption of the battery is suppressed is set on the touch panel, and when the second setting is set, the active state is set. Is set on the touch panel.

According to the present invention, I switch to be low not state consumption of power states of the motor touch panel Runode, Ru can suppress power consumption of the power supply.

  The above object, other objects, features, and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

1 is a block diagram showing a mobile phone 10 as an embodiment of the first invention. FIG. 1 is a front view showing an outline of a mobile phone 10 as one embodiment of the first invention. FIG. It is an illustration figure which shows the power-saving state of the mobile telephone 10 as one Example of 1st invention. It is an illustration figure which shows the relationship between the state of the mobile telephone 10 and the power saving state in the mobile telephone 10 as one Example of 1st invention. FIG. 7 is a flowchart for explaining processing when the processor 12 switches between an active state and a standby state of the touch panel 32 in the mobile phone 10 as one embodiment of the first invention. It is an illustration figure which shows the power-saving state of the mobile telephone 10 as one Example of 2nd invention. It is an illustration figure which shows the relationship between the state of the mobile telephone 10 and the power saving state in the mobile telephone 10 as one Example of 2nd invention. FIG. 11 is a flowchart for explaining processing when the processor 12 switches between an active state and a standby state of the touch panel 32 and the acceleration sensor 36 in the mobile phone 10 as one embodiment of the second invention. It is a flowchart following the flowchart of FIG. It is an illustration figure which shows the power-saving state of the mobile telephone 10 as one Example of 3rd invention. It is an illustration figure which shows the relationship between the state of the mobile telephone 10 and the power saving state in the mobile telephone 10 as one Example of 3rd invention. In the mobile phone 10 as one embodiment of the third invention, when the processor 12 switches between the active state and the standby state of the touch panel 32 and the acceleration sensor 36 and switches on / off the supply of power to the photosensor 38. Explain the processing of FIG. 13 is a flowchart following the flowchart of FIG. 12.

<First embodiment>
Referring to FIG. 1, a mobile phone 10 as a mobile communication terminal includes a processor 12. As can be seen from FIG. 1, the processor 12 includes a power supply IC 14, a RAM (Random Access Memory) 18, a flash memory 20, a key input device 22, an LCD (Liquid Crystal Display) driver 24, a backlight 28, a touch panel control IC 30, an acceleration. A sensor control IC 34, a photo sensor 38, a microphone 40, a speaker 42, an earphone jack 44, a wireless communication circuit 46, and a DTV (Digital Television) tuner 50 are connected to each other.

  The power supply IC 14 functions as a power supply circuit that generates a plurality of types of voltages from the battery 16 as a power supply and supplies the generated voltages to each circuit of the mobile phone 10.

  The RAM 18 is a storage device that can be directly accessed from the processor 12, and is used for temporary storage when the information processing of the processor 12 is performed.

  The flash memory 20 is a storage device that can freely read and write data and is nonvolatile, and stores various programs executed by the processor 12 and various data used in these programs.

  The key input device 22 includes a plurality of keys including a numeric keypad group 22T (see FIG. 2), and the user gives instructions to the processor 12 and inputs values by pressing each key. Or

  The LCD driver 24 controls the LCD monitor 26 connected to the LCD driver 24 and causes the LCD monitor 26 to display characters, images, and the like according to instructions from the processor 12.

  The backlight 28 illuminates the LCD monitor 26 from the back, and for example, an edge light system is adopted. The brightness of the backlight 28 can be adjusted by the processor 12 in, for example, six levels.

  The touch panel control IC 30 functions as a touch panel control circuit that controls the touch panel 32 connected to the touch panel control IC 30. The touch panel 32 is disposed on the upper surface of the LCD monitor 26, detects a position touched by a finger or the like, designates a position on the panel, and gives an instruction corresponding to the position on the panel to the processor 12. That is, by pressing the surface of the touch panel 32 with a finger or a pen, stroking, or drawing, it is possible to input a pressed location, a stroking direction, a drawn figure, or the like. For sensing the touch to the panel, for example, a capacitive coupling type that senses an electric signal due to static electricity is adopted, but not limited to the capacitive coupling type, a resistive film type, an optical type (infrared type), etc. It may be adopted.

  Further, when the touch panel control IC 30 receives the active signal from the processor 12, the touch panel control IC 30 supplies the power from the power supply IC 14 to the touch panel 32 to activate the touch panel 32. On the other hand, when receiving a standby signal from the processor 12, the touch panel control IC 30 cuts off the power from the power supply IC 14 to the touch panel 32 and puts the touch panel 32 into a standby state. When the touch panel control IC 30 receives a standby signal, the touch panel control IC 30 cuts off the supply of power to a portion of the circuit of the self 30 that is not used when the touch panel 32 is in the standby state, and the self 30 also enters the standby state.

  The acceleration sensor control IC 34 functions as an acceleration sensor control circuit that controls the acceleration sensor 36 connected to the acceleration sensor control IC 34. The acceleration sensor control IC 34 and the acceleration sensor 36 are integrally formed by, for example, MEMS (Micro Electro Mechanical Systems) technology. The acceleration sensor 36 detects how much acceleration is applied in a certain direction with respect to the sensor. For example, the acceleration sensor 36 is a biaxial acceleration sensor capable of detecting acceleration in two axial directions at a time. . According to the acceleration sensor 36, it is possible to detect how much the mobile phone 10 is inclined with respect to the ground. For example, when displaying an image on the LCD monitor 36, the processor 12 determines the top of the mobile phone 10, that is, the LCD monitor 36 based on the inclination detected by the acceleration sensor 36, and determines the determined LCD monitor 36. The image can be rotated and displayed according to the top and bottom. In this manner, the display of the display object rotated by judging the top and bottom of the LCD monitor 36 is hereinafter referred to as “rotation display”.

  The photo sensor 38 is a sensor that detects light, generates a current having a magnitude corresponding to the brightness of the detected light, converts the generated current into a voltage, and outputs the voltage to the processor 12. The processor 12 adjusts the brightness of the backlight 28 that illuminates the LCD monitor 26 according to the external brightness sensed by the photosensor 38. That is, when the outside is bright, the backlight 28 is turned on brightly, and when the outside is dark, the brightness is reduced and the backlight 28 is turned on.

  The microphone 40 picks up the voice uttered by the user, converts it into an electrical signal, and outputs the electrical signal to the processor 12. In addition, the speaker 42 converts the electrical signal given from the processor 12 into sound and outputs it. The earphone jack 44 is for connecting a terminal of an earphone (not shown). When detecting that the terminal of the earphone is inserted into the earphone jack 44, the processor 12 stops outputting the sound from the speaker 42, and outputs the sound from the speaker of the earphone. When the processor 12 detects that the terminal of the earphone with microphone (not shown) is inserted into the earphone jack 44, the processor 12 stops the output of the sound from the speaker 42 and outputs the sound signal from the microphone 40. The input is stopped, and an audio signal input from the microphone of the earphone with microphone is received.

The wireless communication circuit 46 is a circuit for realizing, for example, wireless communication using a CDMA (Code Division Multiple Access) method. When a call operation is performed on the key input device 22, the processor 12 controls the wireless communication circuit 46 to output a call signal. The call signal output from the radio circuit 46 is output from the antenna 48 and transmitted to the other party's telephone through the mobile communication network including the base station. When an incoming call operation is performed on the communication partner telephone, a communicable state is established.

  When a call end operation is performed on the key input device 22 after shifting to the communicable state, the processor 12 controls the wireless communication circuit 46 to transmit a call end signal to the telephone of the communication partner. After transmitting the call end signal, the processor 12 ends the call process. Also when the call end signal is received from the communication partner first, the processor 12 ends the call process. Also, the processor 12 ends the call process when a call end signal is received from the mobile communication network regardless of the communication partner.

  When a call signal from a communication partner is captured by the antenna 48, the wireless communication circuit 46 notifies the processor 12 of an incoming call. The processor 12 outputs the caller information described in the incoming call notification to the LCD monitor 26, and outputs a ringtone from an incoming call notification speaker (not shown). When an incoming call operation is performed on the key input device 22, a communicable state is established.

  In the communicable state, the following processing is executed. A modulated audio signal (high frequency signal) sent from the communication partner is received by the antenna 48. The received modulated audio signal is demodulated and decoded by the wireless communication circuit 46. The received voice signal obtained by these processes is output from the speaker 42. The transmitted voice signal captured by the microphone 40 is subjected to encoding processing and modulation processing by the wireless communication circuit 46. The modulated audio signal obtained by these processes is transmitted to the communication partner via the antenna 48 as described above.

  The DTV tuner 50 receives digital terrestrial television broadcasting (One Seg). When the channel selection operation is performed on the key input device 22, the DTV tuner 50 outputs a digital terrestrial television broadcast signal corresponding to a channel selected from the digital terrestrial television broadcast signal received by the DTV antenna 52. Extract. The DTV tuner 50 generates a demodulated signal by performing processing such as digital demodulation on the extracted digital terrestrial television broadcast signal. The generated demodulated signal is separated into a demodulated signal for video broadcasting and a demodulated signal for data broadcasting and output to the processor 12. The processor 12 performs a decoding process based on the MPEG (Moving Picture Experts Group) system on the demodulated signal of the video broadcast to form a video signal. Further, the processor 12 performs a decoding process on the demodulated signal of the data broadcast to form text data and the like. The video signal and text data thus formed are displayed on the LCD monitor 26 by the action of the LCD driver 24.

  FIG. 2 is an external view of the mobile phone 10. Referring to FIG. 2, mobile phone 10 has a case C formed in a plate shape. On the side surface of one end of the case C in the length direction, a DTV antenna 52 is disposed. The radio communication antenna 48 is disposed inside the case C. A key input device 22 is disposed below the surface of the case C. The key input device 22 includes a numeric key group 22T, an up key 22a, a down key 22b, a left key 22c, a right key 22d, a center key 22e, a power / end key 22f, a call key 22g, and a lock key 22h. Each key is a push switch. An LCD monitor 26 is disposed on the upper surface of the case C, and a touch panel 32 is disposed on the upper surface of the LCD monitor 26. Hereinafter, an operation in which the user presses each key is referred to as “key input”, and an operation in which the upper surface of the touch panel 32 is pressed, stroked, or drawn with a finger or a pen is referred to as “touch input”.

  Further, an opening OP1 leading to a speaker 42 (not shown in FIG. 2) is provided near the upper end of the surface of the case C, and an opening OP2 leading to a microphone 40 (not shown in FIG. 2) is provided near the lower end of the surface of the case C. Is provided. Therefore, the user listens to the sound output from the speaker 42 through the opening OP1, and inputs his / her voice to the microphone 42 through the opening OP2. In addition, an opening OP3 is provided, for example, near the lower left of the LCD monitor 26 on the surface of the case C, and the sensor portion of the photosensor 38 is exposed from the opening of the opening OP3. Although not shown in FIG. 2, an earphone jack 44 for connecting an earphone terminal is provided on the left side surface of the case C.

In the mobile phone 10 according to the first embodiment, power saving is achieved by switching the state of the touch panel 32 as an external sensor between the active state and the standby state in accordance with the state of the mobile phone 10 detected by the processor 12. In addition, power consumption of the battery 16 can be suppressed.

  As shown in FIG. 3, the state of the external sensor includes a “first state” in which the touch panel 32 is in an active state and a “second state” in which the touch panel 32 is in a standby state.

  As shown in FIG. 4, the state of the mobile phone 10 includes a low battery state in which the remaining amount of the battery 16 is less than a predetermined amount, and nothing is displayed on the LCD monitor 26 (not displayed). State, the touch panel 32 is locked, there is no possibility of performing "functional operation other than a call" during a call (only a call) (condition 1), a call is being made but an earphone is connected to the earphone jack 44 There is a possibility that "functional operation other than phone call" may be performed (condition 2) when the terminal is connected, the hands-free function is being executed, or on hold, etc. A state in which an application corresponding to “touch input” is not being executed (condition 3), and an application not corresponding to “touch input” is being executed in a call. Condition 4), and, there are other conditions.

  The low battery state is, for example, a state in which the remaining amount of the battery 16 is the least represented by only one scale when the remaining amount of the battery 16 is represented by a gauge having three levels. The touch panel 32 can be locked by long-pressing the lock key 22h and performing “key input”. When the touch panel 32 is locked, the touch panel control IC 30 does not accept “touch input”. The hands-free function can be executed by long-pressing the call key 22g and performing “key input” when making a call, receiving a call, or during a call. Furthermore, the hold function can be performed by “keying” the power / end call key during an incoming call. The “functional operation other than a call” is, for example, a character input operation on a Web screen or the like, a still image display operation, a terrestrial digital broadcast display operation with a data broadcast output, or the like.

  Referring to FIG. 4, in the low battery state, touch panel 32 is set to a standby state (second state) in order to prevent battery 16 from being consumed. When the LCD monitor 26 is in a non-display state, it is not necessary to prepare for “touch input”, so that the touch panel 32 is set in a standby state (second state). Further, in a state where the touch panel 32 is locked, “touch input” is not accepted, so that the touch panel 32 is set in a standby state (second state).

  In a state where there is no possibility of performing “functional operation other than a call” during a call (only for a call) (condition 1), since there is no possibility of “touch input” being performed, the touch panel 32 is set in a standby state. (Second state). On the other hand, in a state (condition 2) in which a “functional operation other than a call” may be performed during a call (touch condition input), the touch panel 32 is activated (in the case of “touch input”) (first operation). 1 state).

  Further, in a state where an application corresponding to “touch input” is activated without being in a call (condition 3), the touch panel 32 is activated in preparation for “touch input” (first state). On the other hand, in a state in which an application that is not in a call and does not support “touch input” is activated (condition 4), there is no possibility of performing “touch input”, and thus the touch panel 32 is set to a standby state. (Second state). In the state of the mobile phone 10 other than the above, the touch panel 32 is activated in preparation for “touch input” (first state).

Next, processing when the processor 12 operates the power saving state by switching between the active state and the standby state of the touch panel 32 will be described with reference to the flowchart of FIG. The processor 12 executes the following processing based on a predetermined program stored in the flash memory 20.

  Further, the processor 12 detects the state of the mobile phone 10 such as the remaining capacity of the battery 16, the presence / absence of the connection of the earphone to the earphone jack 44, and the function supported by the activated application, using a known technique. Can do. For example, whether or not an activated application corresponds to a predetermined function is determined by holding a table in which the application name and the function name supported by the application are associated with each other in the flash memory 20. The processor 12 can determine by referring to this table. Further, the processor 12 may directly inquire the activated application whether or not it corresponds to a predetermined function, and the application may respond to the inquiry.

  Note that the processing shown in the flowchart of FIG. 5 is merely an example, and the processing order is not limited to that shown in the flowchart, and the present invention can be realized even if the processing order is changed. May be changed as appropriate.

  Referring to FIG. 5, first, in step S <b> 1, the processor 12 determines whether or not the remaining amount of the battery 16 is less than a predetermined amount (low battery). If YES is determined in step S1, the processor 12 sets the flag F to a content indicating “second state” in step S13. Here, the flag F is, for example, a storage area such as a register R included in the processor 12. The register R (flag F) is set to “00000001” or “00000010” to indicate “first state” or “second state”. The “first state” is a state in which “00000001” is stored in the register R and the touch panel 32 is activated as shown in FIG. On the other hand, the “second state” is a state in which “00000010” is stored in the register R and the touch panel 32 is in a standby state as shown in FIG. Therefore, in step S13, “00000010” is stored in the register R (flag F).

  Thus, when the flag F is set, the processor 12 operates the power saving state based on the setting state of the flag F in step S15. Specifically, since the flag F indicates “second state”, the processor 12 transmits a standby signal to the touch panel control IC 30. The touch panel control IC 30 that has received the standby signal cuts off the supply of power from the battery 16 to the touch panel 32 to place the touch panel 32 in a standby state, and itself 30 is also in a standby state. After step 15, the process returns to step S1.

  On the other hand, if NO is determined in step S1, the process proceeds to step S3 to determine whether or not the LCD monitor 26 is not displayed. If “YES” is determined in the step S3, “00000010” is stored in the register R in a step S13, the flag F is set to a content indicating “second state”, and further, based on the setting state of the flag F in a step S15. Operate the power saving state. Specifically, since the flag F indicates “second state”, the processor 12 transmits a standby signal to the touch panel control IC 30.

On the other hand, if NO is determined in step S3, it is determined in step S5 whether or not the touch panel 32 is locked. If “YES” is determined in the step S5, “00000010” is stored in the register R in a step S13, the flag F is set to a content indicating “second state”, and further, based on the setting state of the flag F in a step S15. Operate the power saving state. Specifically, since the flag F indicates “second state”, the processor 12 transmits a standby signal to the touch panel control IC 30.

  On the other hand, if NO is determined in step S5, it is determined in step S7 whether or not a call is in progress. If “YES” is determined in the step S7, next, in a step S9, whether the insertion of the earphone terminal into the earphone jack 44, the hands-free function, or the hold function is executed, that is, during the call, It is determined whether or not the “function operation other than” is likely to be performed. Even during a call, when the earphone terminal is inserted into the earphone jack 44, the hands-free function is executed, or the hold function is executed, the opening OP1 of the mobile phone 10 and the LCD monitor 26 are used. Since the user is separated from the periphery of the user's ear, the user can perform some operation on the mobile phone 10 to perform a “functional operation other than a call”. If “YES” is determined in the step S9, “00000001” is stored in the register R in a step S11, the flag F is set to a content indicating “first state”, and further, based on the setting state of the flag F in a step S15. Operate the power saving state. Specifically, since the flag F indicates “first state”, the processor 12 transmits an active signal to the touch panel control IC 30. The touch panel control IC 30 that has received the active signal supplies power from the battery 16 to the touch panel 32 to make it active, and itself 30 also becomes active.

  On the other hand, if NO is determined in step S9, "00000010" is stored in the register R in step S13, the flag F is set to the content indicating "second state", and the flag F is set in the set state in step S15. Based on the power saving state. Specifically, since the flag F indicates “second state”, the processor 12 transmits a standby signal to the touch panel control IC 30.

  Returning to step S7, if it is determined that the call is not in progress (NO in step S7), it is determined in step S17 whether the application is being activated. If YES is determined in the step S17, the processor 12 then determines whether or not the application being activated corresponds to “touch input” in a step S19. If “YES” is determined in the step S19, “00000001” is stored in the register R in a step S11, the flag F is set to a content indicating “first state”, and further, based on the setting state of the flag F in a step S15. Operate the power saving state. Specifically, since the flag F indicates “first state”, the processor 12 transmits an active signal to the touch panel control IC 30.

  On the other hand, if NO is determined in step S19, "00000010" is stored in the register R in step S13, the flag F is set to the content indicating "second state", and the flag F is set to the set state in step S15. Based on the power saving state. Specifically, since the flag F indicates “second state”, the processor 12 transmits a standby signal to the touch panel control IC 30.

  Returning to step S17, if it is determined that the application is not running (NO in step S17), that is, if it is in any other state, “00000001” is stored in register R and flag F is set to “first” in step S11. In step S15, the power saving state is operated based on the setting state of the flag F. Specifically, since the flag F indicates “first state”, the processor 12 transmits an active signal to the touch panel control IC 30.

As can be seen from the above description, in the mobile phone 10 of the first embodiment, the necessity of the operation of the touch panel 32 that is an external sensor is determined according to the operation state of the mobile phone 10 and the operation of the touch panel 32 is necessary. If not, the touch panel 32 is switched from the active state to the standby state. Therefore, it is possible to prevent wasteful power from being supplied to the touch panel 32 and suppress power consumption of the battery 16.

<Second embodiment>
In the second embodiment, the configuration of the mobile phone 10 of FIG. 1 used in the description of the first embodiment and the appearance of the mobile phone 10 shown in FIG. 2 are the same. And the description thereof is omitted.

  In the second embodiment, when the acceleration sensor control IC 34 receives the active signal from the processor 12, the acceleration sensor 36 supplies the power from the power supply IC 14 to the acceleration sensor 36 to make the acceleration sensor 36 active. On the other hand, when receiving the standby signal from the processor 12, the acceleration sensor control IC 34 cuts off the power from the power supply IC 14 to the acceleration sensor 36 and puts the acceleration sensor 36 into a standby state. Further, when the acceleration sensor control IC 34 receives a standby signal, the acceleration sensor control IC 34 cuts off power to a portion of the circuit 34 itself that is not used when the acceleration sensor 34 is in a standby state, and the own sensor 34 is also in a standby state.

  Therefore, in the mobile phone 10 of the second embodiment, the processor 12 individually transmits an active signal or a standby signal to the acceleration sensor control IC 34 in addition to the touch panel control IC 30.

  In the mobile phone 10 according to the second embodiment, power is saved by switching the state of the touch panel 32 and the acceleration sensor 36 as external sensors between the active state and the standby state according to the state of the mobile phone 10. The power consumption of the battery 16 can be suppressed.

  As shown in FIG. 6, the combinations of the states of the external sensors include “first state” in which both the touch panel 32 and the acceleration sensor 36 are in an active state, and “the touch panel 32 is in an active state and the acceleration sensor 36 is in a standby state”. There are a “second state”, a “third state” in which the touch panel 32 is in a standby state and the acceleration sensor 36 is in an active state, and a “fourth state” in which both the touch panel 32 and the acceleration sensor 36 are in a standby state.

  Further, as shown in FIG. 7, the state of the mobile phone 10 includes a low battery state in which the remaining amount of the battery 16 is less than a predetermined amount, and nothing is displayed on the LCD monitor 26 (not displayed). A state where the touch panel 32 is locked, a state where there is no possibility of performing a “functional operation other than a call” during a call (condition 5), and a terminal is connected to the earphone jack 44 while a call is in progress State that there is a possibility that "functional operation other than call" may be performed due to being performed, hands-free function being executed, or being on hold, etc. (condition 6) An application that supports both “input” and “rotation display” is being executed (condition 7), an application that is not in a call and that supports “touch input” and does not support “rotation display” Application is in progress (condition 8), is not in a call and does not support "touch input", is in an application that is compatible with "rotate display" (condition 9), is not in a call and is "touch" There are states in which an application that does not support both “input” and “rotation display” is being executed (condition 10), and other states. As described above, “rotation display” refers to determining the top of the LCD monitor 36 by the action of the acceleration sensor 36 and rotating and displaying a display object such as a still image according to the top of the LCD monitor 36. It is.

Referring to FIG. 7, in the low battery state, touch panel 32 and acceleration sensor 36 are both set to a standby state (fourth state) to prevent battery 16 from being consumed. When the LCD monitor 26 is not displayed, there is no possibility of “touch input” being performed, and the LCD monitor 2
Since there is no need to “rotate and display” the display target displayed in FIG. 6, both the touch panel 32 and the acceleration sensor 36 are set in a standby state (fourth state). When the touch panel 32 is locked, no “touch input” is accepted, so that the touch panel 32 is in a standby state. However, the LCD monitor 26 displays an object, and the display object can be “rotated”. Therefore, the acceleration sensor 36 is brought into an active state (third state).

  In a state where there is no possibility of performing “functional operation other than a call” during a call (condition 5), there is no possibility of “touch input” being performed, and the display target displayed on the LCD monitor 26 is “rotated”. Since there is no possibility of “display”, both the touch panel 32 and the acceleration sensor 36 are set in a standby state (fourth state). On the other hand, in a state (condition 6) where there is a possibility of performing “functional operation other than a call” during a call, the touch panel 32 is activated in preparation for the case of performing “touch input”. Since the “rotation display” is not performed, the acceleration sensor 36 is set in a standby state (second state).

  In a state where the application corresponding to both “touch input” and “rotation display” is activated (condition 7) when the call is not in progress, the touch panel 32 is activated in preparation for “touch input”, and “rotation display” , The acceleration sensor 36 is also activated (first state). In addition, in a state where an application not corresponding to “touch input” and not corresponding to “rotation display” is activated (condition 8), the touch panel 32 is activated in preparation for “touch input”. Since it is not necessary to prepare for the “rotation display”, the acceleration sensor 36 is set in a standby state (second state). Further, in a state (condition 9) in which an application that does not support a “touch input” and does not support “touch display” is activated (condition 9), it is not necessary to prepare for “touch input”. Since 32 is set in a standby state and it is necessary to prepare for “rotation display”, the acceleration sensor 36 is set in an active state (third state). Further, in a state where an application that is not in a call and does not support “touch input” or “rotation display” is activated (condition 10), it is necessary to prepare for “touch input”. Since there is no need, both the touch panel 32 and the acceleration sensor 36 are set in a standby state (fourth state). In the state of the mobile phone 10 other than the above, both the touch panel 32 and the acceleration sensor 36 are activated in preparation for “touch input” and “rotation display” (first state).

  Next, processing when the processor 12 switches the active state and the standby state of the touch panel 32 and the acceleration sensor 36 to operate the power saving state will be described with reference to the flowcharts of FIGS. 8 and 9. The processor 12 executes the following processing based on a predetermined program stored in the flash memory 20. Further, the processor 12 detects the state of the mobile phone 10 such as the remaining capacity of the battery 16, the presence / absence of the connection of the earphone to the earphone jack 44, and the function supported by the activated application, using a known technique. Can do. Note that the processes shown in the flowcharts of FIGS. 8 and 9 are illustrative, and the order of the processes is not limited to that shown in the flowcharts, and the present invention can be realized even if the order of the processes is changed. If possible, you may change suitably.

Referring to FIG. 8, first, in step S21, the processor 12 determines whether or not the remaining amount of the battery 16 is less than a predetermined amount (low battery). If YES is determined in the step S21, the processor 12 sets the flag F to “fourth state” in a step S37. Here, the flag F is, for example, a storage area such as a register R included in the processor 12. The register R (flag F) is set to any one of “first state” to “fourth state” by being set to any one of “00000001”, “00000010”, “00000100”, and “00001000”. Indicates the state. The “first state” is a state in which “00000001” is stored in the register R and both the touch panel 32 and the acceleration sensor 36 are active as shown in FIG. The “second state” is a state in which “00000010” is stored in the register R, and the touch panel 32 is active and the acceleration sensor 36 is on standby as shown in FIG. Similarly, “00000100” and “00001000” are stored in the register R (flag F) to indicate “third state” and “fourth state”, respectively. Accordingly, in step S37, “00001000” is stored in the register R (flag F).

  Thus, when the flag F is set, the processor 12 operates the power saving state based on the setting state of the flag F in step S35. Specifically, since the flag F indicates “fourth state”, the processor 12 transmits a standby signal to both the touch panel control IC 30 and the acceleration sensor control IC 34.

  On the other hand, if NO is determined in the step S21, the process proceeds to a step S23 so as to determine whether or not the LCD monitor 26 is not displayed. If “YES” is determined in the step S23, “00001000” is stored in the register R in a step S37, the flag F is set to a content indicating “fourth state”, and further, based on the setting state of the flag F in a step S35. Operate the power saving state. Specifically, since the flag F indicates “fourth state”, the processor 12 transmits a standby signal to both the touch panel control IC 30 and the acceleration sensor control IC 34.

  On the other hand, if NO is determined in step S23, it is determined whether or not the touch panel 32 is locked in step S25. If “YES” is determined in the step S25, “00000100” is stored in the register R in a step S39, the flag F is set to the content indicating “third state”, and further, based on the setting state of the flag F in a step S35. Operate the power saving state. Specifically, since the flag F indicates “third state”, the processor 12 transmits a standby signal to the touch panel control IC 30 and transmits an active signal to the acceleration sensor control IC 34.

  On the other hand, if NO is determined in the step S25, it is determined whether or not a call is in progress in a step S27. If YES is determined in step S27, next, in step S29, whether the insertion of the earphone terminal into the earphone jack 44, the hands-free function, or the hold function is executed, that is, “call” It is determined whether or not the “function operation other than” is likely to be performed. If “YES” is determined in the step S29, “00000010” is stored in the register R in a step S31, the flag F is set to the content indicating “second state”, and further, based on the setting state of the flag F in a step S35. Operate the power saving state. Specifically, since the flag F indicates “second state”, the processor 12 transmits an active signal to the touch panel control IC 30 and transmits a standby signal to the acceleration sensor control IC 34. On the other hand, if NO is determined in step 29, "00001000" is stored in the register R in step S33, the flag F is set to the content indicating "fourth state", and the flag F is set in the setting state in step S35. Based on the power saving state. Specifically, since the flag F indicates “fourth state”, the processor 12 transmits a standby signal to both the touch panel control IC 30 and the acceleration sensor control IC 34.

Returning to step S27, if it is determined that the call is not in progress (NO in step S27), it is determined in step S41 whether the application is being activated. If “YES” is determined in the step S41, it is then determined whether or not the activated application corresponds to “touch input” in a step S43. If “YES” is determined in the step S43, it is further determined whether or not the activated application corresponds to “rotation display” in a step S45. If “YES” is determined in the step S45, “00000001” is stored in the register R in a step S47, the flag F is set to the content indicating “first state”, and further, based on the set state of the flag F in a step S35. Operate the power saving state. Specifically, since the flag F indicates “first state”, the processor 12 transmits an active signal to both the touch panel control IC 30 and the acceleration sensor control IC 34.

  On the other hand, if NO is determined in step S45, "00000010" is stored in the register R in step S49, the flag F is set to the content indicating "second state", and the flag F is set to the set state in step 35. Based on the power saving state. Specifically, since the flag F indicates “second state”, the processor 12 transmits an active signal to the touch panel control IC 30 and transmits a standby signal to the acceleration sensor IC 34.

  Returning to step S43, if it is determined that the activated application does not support “touch input” (NO in step S43), then, in step 51, whether the activated application corresponds to “rotation display”. Judge whether or not. If “YES” is determined in the step S51, “00000100” is stored in the register R in a step S53, the flag F is set to a content indicating “third state”, and further, based on the setting state of the flag F in a step 35. Operate the power saving state. Specifically, since the flag F indicates “third state”, the processor 12 transmits a standby signal to the touch panel control IC 30 and transmits an active signal to the acceleration sensor IC 34.

  On the other hand, if NO is determined in step S51, "00001000" is stored in the register R in step S55, the flag F is set to the content indicating "fourth state", and the flag F is set in the setting state in step 35. Based on the power saving state. Specifically, since the flag F indicates “fourth state”, the processor 12 transmits a standby signal to both the touch panel control IC 30 and the acceleration sensor IC 34.

  Returning to step S41, if it is determined that the application is not running (NO in step S41), that is, if it is in any other state, “00000001” is stored in register R and flag F is set to “first” in step S47. In step S79, the power saving state is operated based on the setting state of the flag F. Specifically, since the flag F indicates “first state”, the processor 12 transmits an active signal to both the touch panel control IC 30 and the acceleration sensor control IC 34.

  As can be seen from the above description, in the mobile phone 10 according to the second embodiment, the necessity of the operation of the touch panel 32 and the acceleration sensor 36 that are external sensors is determined according to the operation status of the mobile phone 10 and the like. When there is no necessity, the touch panel 32 and the acceleration sensor 36 are individually switched from the active state to the standby state. Therefore, it is possible to prevent unnecessary power from being supplied to the touch panel 32 and the acceleration sensor 36, and to suppress power consumption of the battery 16.

<Third embodiment>
In the third embodiment, the configuration of the mobile phone 10 shown in FIG. 1 used in the description of the first embodiment and the appearance of the mobile phone 10 shown in FIG. 2 are the same. And the description thereof is omitted.

  In the third embodiment, when the acceleration sensor control IC 34 receives the active signal from the processor 12, the acceleration sensor 36 supplies the power from the power supply IC 14 to the acceleration sensor 36 to make the acceleration sensor 36 active. On the other hand, when receiving the standby signal from the processor 12, the acceleration sensor control IC 34 cuts off the power from the power supply IC 14 to the acceleration sensor 36 and puts the acceleration sensor 36 into a standby state. Further, when the acceleration sensor control IC 34 receives a standby signal, the acceleration sensor control IC 34 cuts off power to a portion of the circuit 34 itself that is not used when the acceleration sensor 34 is in a standby state, and the own sensor 34 is also in a standby state.

  In the mobile phone 10 of the third embodiment, the processor 12 transmits an active signal or a standby signal individually to the acceleration sensor control IC 34 in addition to the touch panel control IC 30, in addition to the power supply IC 14 and the processor 12. The power supply from the battery 16 to be supplied to the photosensor 38 via the ON / OFF is also switched.

  In the mobile phone 10 according to the third embodiment, the state of the touch panel 32 and the acceleration sensor 36 as external sensors is switched between the active state and the standby state according to the state of the mobile phone 10, Power can be saved by switching ON / OFF the supply of power to the photosensor 38 as a sensor, and the power consumption of the battery 16 can be suppressed.

  As shown in FIG. 10, as a combination of states of the external sensors, the touch panel 32 and the acceleration sensor 36 are both in the active state, and the power supply to the photosensor 38 is “first state”. Is the active state, the acceleration sensor 36 is in the standby state, and the power supply to the photosensor 38 is “second state”. The touch panel 32 is in the active state and the acceleration sensor 36 is in the standby state. “Third state” in which the power supply to the photosensor 38 is OFF, the touch panel 32 is in the standby state, the photosensor 38 is in the active state, and the power supply to the photosensor 38 is ON. 4th state ", both the touch panel 32 and the acceleration sensor 36 are in the standby state, and the photo “Fifth state” in which the power supply to the sensor 38 is ON, and “Sixth state” in which both the touch panel 32 and the acceleration sensor 36 are in the standby state and the power supply to the photosensor 38 is OFF. There is.

  As shown in FIG. 11, the state of the mobile phone 10 includes a low battery state in which the remaining amount of the battery 16 is less than a predetermined amount, and nothing is displayed on the LCD monitor 26 (not displayed). State, touch panel 32 is locked, state in which a call is in progress and there is no possibility of performing "functional operation other than call" (condition 11), call is in progress and "functional operation other than call" is performed There is a possibility that “functional operation other than a call” is actually being performed (condition 12), and there is a possibility that “functional operation other than a call” may be performed during a call. "Functional operation" is not performed (condition 13), the application is compatible with both "touch input" and "rotation display", not in a call (condition 14), and in a call Without saying, An application corresponding to “input” and not corresponding to “rotation display” is being executed (condition 15), and an application corresponding to “rotation display” is executed not corresponding to “touch input” when not in a call. A state (condition 16), an application that is not in a call and does not support both “touch input” and “rotation display” (condition 17), and other states.

  Referring to FIG. 11, in the low battery state, both touch panel 32 and acceleration sensor 36 are set in a standby state to prevent the battery 16 from being consumed, and the power supply to photosensor 38 is turned off (sixth). State). When the LCD monitor 26 is not displayed, there is no possibility of “touch input”, so the touch panel 32 is set in a standby state, and it is not necessary to “rotate and display” the display target of the LCD monitor 26. Since it is in a standby state and it is not necessary to adjust the brightness of the LCD monitor 26 (backlight 28), the supply of power to the photosensor 38 is turned off (sixth state). Further, in a state where the touch panel 32 is locked, “touch input” is not accepted, so that the touch panel 32 is in a standby state. However, there is a possibility that a display target to be “rotated” is displayed on the LCD monitor 26. Since the acceleration sensor 36 is in an active state and the brightness of display on the LCD monitor 26 needs to be adjusted, power supply to the photosensor 38 is turned on (fourth state).

  In a state where there is no possibility of performing “functional operation other than a telephone call” during a call (condition 11), since there is no possibility of “touch input” being performed, the touch panel 32 is set in a standby state, and is displayed on the LCD monitor 26. Since the display object to be “rotated” is not displayed, the acceleration sensor 36 is also set in the standby state, and it is not necessary to adjust the brightness of the display on the LCD monitor 26, so the power supply to the photosensor 38 is turned off. (Sixth state). Further, in a state (condition 12) in which a “functional operation other than a call” may be performed and a “functional operation other than a call” is actually being executed (condition 12), a “touch input” is prepared. Since the touch panel 32 is in an active state and “rotation display” is not performed as a specification, the acceleration sensor 36 is in a standby state and the brightness of display on the LCD monitor 26 needs to be adjusted. Turned on (second state). When there is a possibility that a “functional operation other than a call” may be performed during a call, but in reality a “functional operation other than a call” is not executed (condition 13), a “touch input” is prepared. Since the touch panel 32 is in an active state and “rotation display” is not performed as a specification, the acceleration sensor 36 is in a standby state, and it is not necessary to adjust the brightness of the display on the LCD monitor 26, so that power is supplied to the photo sensor 38. Is turned off (third state).

  Further, in a state where the application corresponding to both “touch input” and “rotation display” is activated (condition 14) without being in a call, the touch panel 32 is activated in preparation for “touch input”. In preparation for the “rotation display”, the acceleration sensor 36 is also activated, and the brightness of the display on the LCD monitor 26 needs to be adjusted, so that the power supply to the photosensor 38 is turned on (first state). In addition, in a state where an application that is not in a call and supports “touch input” but does not support “rotation display” is activated (condition 15), the touch panel 32 is active in preparation for “touch input”. Since there is no need to prepare for the “rotation display”, the acceleration sensor 36 is set in the standby state and the brightness of the display on the LCD monitor 26 needs to be adjusted, so that the power supply to the photosensor 38 is turned on. (Second state). In the state (condition 16) in which an application corresponding to “rotation display” is activated but not corresponding to “touch input” when not in a call, it is not necessary to prepare for “touch input”. 32 is set in a standby state, and it is necessary to prepare for “rotation display”. Therefore, the acceleration sensor 36 is set in an active state and the brightness of the display on the LCD monitor 26 needs to be adjusted. Turned on (fourth state). Furthermore, in a state where an application that does not support both “touch input” and “rotation display” is activated (condition 17), since it is not necessary to prepare for “touch input”, the touch panel 32 is set in a standby state. Since it is not necessary to prepare for the “rotation display”, the acceleration sensor 36 is also set in the standby state and the brightness of the display on the LCD monitor 26 needs to be adjusted, so that the power supply to the photosensor 38 is turned on (fifth). State). In the state of the mobile phone 10 other than the above, the touch panel 32 is activated in preparation for “touch input”, the acceleration sensor 36 is also activated in preparation for “rotation display”, and the display brightness of the LCD monitor 26 is increased. In order to adjust the height, the power supply to the photosensor 38 is turned on (first state).

  Next, referring to the flowcharts of FIGS. 12 and 13, the processor 12 switches between the active state and the standby state of the touch panel 32 and the acceleration sensor 36, and switches on / off the supply of power to the photosensor 38. A process when operating the power saving state will be described. The processor 12 executes the following processing based on a predetermined program stored in the flash memory 20.

  Further, the processor 12 detects the state of the mobile phone 10 such as the remaining capacity of the battery 16, the presence / absence of the connection of the earphone to the earphone jack 44, and the function supported by the activated application, using a known technique. Can do.

  Note that the processes shown in the flowcharts of FIGS. 12 and 13 are examples, and the order of the processes is not limited to that shown in the flowcharts, and the present invention can be realized even if the order of the processes is changed. If possible, you may change suitably.

  Referring to FIG. 12, first, in step S61, the processor 12 determines whether or not the remaining amount of the battery 16 is less than a predetermined amount (low battery). If YES is determined in the step S61, the processor 12 sets the flag F to a content indicating “sixth state” in a step S81. Here, the flag F is, for example, a storage area such as a register R included in the processor 12. The register R (flag F) is set to “00000001”, “00000010”, “00000100”, “00001000”, “00010000”, “00100000”, so that “first state” to “sixth state” are set. Is stored. In the “first state”, “00000001” is stored in the register R, and as shown in FIG. 10, both the touch panel 32 and the acceleration sensor 36 are active, and the power to the photosensor 38 is The supply is turned on. In the “second state”, the numerical value “00000010” is stored in the register R, and as shown in FIG. 10, the touch panel 32 is active, the acceleration sensor 36 is on standby, In this state, the power supply is turned on. Similarly, by storing “00000100”, “00001000”, “00010000”, “00100000” in the register R (flag F), “third state”, “fourth state”, “first”, respectively. "5 state" and "sixth state" are shown. Accordingly, in step S81, “00100000” is stored in the register R (flag F).

  Thus, when the flag F is set, the processor 12 operates the power saving state based on the setting state of the flag F in step S79. Specifically, since the flag F indicates “sixth state”, the processor 12 transmits a standby signal to both the touch panel control IC 30 and the acceleration sensor control IC 34, and the power to the photo sensor 38 is Turn off the supply.

  On the other hand, if NO is determined in the step S61, the process proceeds to a step S63 so as to determine whether or not the LCD monitor 26 is not displayed. If “YES” is determined in the step S63, “00100000” is stored in the register R in a step S81, the flag F is set to a content indicating “sixth state”, and further, based on the setting state of the flag F in a step S79. Operate the power saving state. Specifically, since the flag F indicates “sixth state”, the processor 12 transmits a standby signal to both the touch panel control IC 30 and the acceleration sensor control IC 34, and the power to the photo sensor 38 is Turn off the supply.

  On the other hand, if NO is determined in step S63, it is determined in step S65 whether or not the touch panel 32 is locked. If “YES” is determined in the step S65, “00001000” is stored in the register R in a step S83, the flag F is set to the content indicating “fourth state”, and further, based on the setting state of the flag F in a step S79. Operate the power saving state. Specifically, since the flag F indicates “fourth state”, the processor 12 transmits a standby signal to the touch panel control IC 30, transmits an active signal to the acceleration sensor control IC 34, and The power supply to the sensor 38 is turned ON.

  On the other hand, if NO is determined in the step S65, it is determined whether or not a call is in progress in a step S67. If “YES” is determined in the step S67, next, in a step S69, whether the insertion of the earphone terminal into the earphone jack 44, the hands-free function, or the hold function is executed, that is, “call” It is determined whether or not the “function operation other than” is likely to be performed. If YES is determined in the step S69, it is determined whether or not “functional operation other than a call” is actually performed in a step S71.

  If “YES” is determined in the step 71, “00000010” is stored in the register R in a step S75, the flag F is set to the content indicating “second state”, and further, based on the setting state of the flag F in a step S79. Operate the power saving state. Specifically, since the flag F indicates “second state”, the processor 12 transmits an active signal to the touch panel control IC 30, transmits a standby signal to the acceleration sensor control IC 34, and The power supply to the sensor 38 is turned ON. If NO is determined in step 71, “00000100” is stored in the register R in step S73, the flag F is set to the content indicating “third state”, and further, based on the setting state of the flag F in step S79. Operate the power saving state. Specifically, since the flag F indicates “third state”, the processor 12 transmits an active signal to the touch panel control IC 30, transmits a standby signal to the acceleration sensor control IC 34, and The power supply to the sensor 38 is turned off.

  Returning to step S69, if NO is determined in step S69, "00100000" is stored in the register R in step S77, the flag F is set to the content indicating "sixth state", and the flag F is further displayed in step S79. The power saving state is operated based on the setting state. Specifically, since the flag F indicates “sixth state”, the processor 12 transmits a standby signal to both the touch panel control IC 30 and the acceleration sensor control IC 34, and the power to the photo sensor 38 is Turn off the supply.

  Returning to step S67, if it is determined that the call is not in progress (NO in step S67), it is determined in step S85 whether the application is being activated. If “YES” is determined in the step S85, it is then determined whether or not the activated application corresponds to “touch input” in a step S87. If “YES” is determined in the step S87, it is further determined whether or not the application being activated corresponds to “rotation display” in a step S89. If “YES” is determined in the step S89, “00000001” is stored in the register R in a step S91, the flag F is set to a content indicating “first state”, and further, based on the setting state of the flag F in a step S79. Operate the power saving state. Specifically, since the flag F indicates “first state”, the processor 12 transmits an active signal to both the touch panel control IC 30 and the acceleration sensor control IC 34, and the power to the photosensor 38 is Turn on the supply.

  On the other hand, if NO is determined in step S89, "00000010" is stored in the register R in step S93, the flag F is set to the content indicating "second state", and the flag F is set to the set state in step 79. Based on the power saving state. Specifically, since the flag F indicates “second state”, the processor 12 transmits an active signal to the touch panel control IC 30, transmits a standby signal to the acceleration sensor IC 34, and supplies power to the photosensor 38. Turn on the supply.

  Returning to step S87, if it is determined that the activated application does not support “touch input” (NO in step S87), then, in step 95, whether the activated application corresponds to “rotation display”. Judge whether or not. If “YES” is determined in the step S95, “00001000” is stored in the register R in a step S97, the flag F is set to the content indicating “fourth state”, and further, based on the setting state of the flag F in a step 79. Operate the power saving state. Specifically, since the flag F indicates “fourth state”, the processor 12 transmits a standby signal to the touch panel control IC 30, transmits an active signal to the acceleration sensor IC 34, and supplies power to the photosensor 38. Turn on the supply.

On the other hand, if NO is determined in step S95, "00010000" is stored in the register R in step S99, the flag F is set to the content indicating "fifth state", and the flag F is set in the set state in step 79. Based on the power saving state. Specifically, since the flag F indicates “fifth state”, the processor 12 transmits a standby signal to both the touch panel control IC 30 and the acceleration sensor IC 34, and the power to the photo sensor 38 is Turn on the supply.

  Returning to step S85, if it is determined that the application is not running (NO in step S85), that is, if it is in any other state, “00000001” is stored in register R and flag F is set to “first” in step S91. In step S79, the power saving state is operated based on the setting state of the flag F. Specifically, since the flag F indicates “first state”, the processor 12 transmits an active signal to both the touch panel control IC 30 and the acceleration sensor control IC 34, and the power to the photosensor 38 is Turn on the supply.

  As can be seen from the above description, in the mobile phone 10 of the third embodiment, the necessity of the operation of the touch panel 32, the acceleration sensor 36, and the photo sensor 38, which are external sensors, according to the operation status of the mobile phone 10 or the like. If it is determined that there is no need for operation, the touch panel 32 and the acceleration sensor 36 are switched from the active state to the standby state, and the power supply to the photosensor 38 is switched from ON to OFF. Therefore, it is possible to prevent wasteful power from being supplied to the touch panel 32, the acceleration sensor 36, and the photo sensor 38, and to suppress power consumption of the battery 16.

10 ... Mobile phone (mobile communication terminal)
12 ... Processor 14 ... Power supply IC
16 ... battery 16
18 ... RAM
DESCRIPTION OF SYMBOLS 20 ... Flash memory 22 ... Key input device 24 ... LCD driver 26 ... LCD monitor 28 ... Backlight 30 ... Touch panel control IC
32 ... Touch panel 34 ... Acceleration sensor control IC
36 ... Acceleration sensor 38 ... Photo sensor 40 ... Microphone 42 ... Speaker 44 ... Earphone jack 46 ... Wireless communication circuit 48 ... Antenna 50 ... DTV tuner 52 ... DTV antenna

Claims (5)

Display,
A power supply unit that supplies power of a predetermined voltage from the battery;
A touch panel that is supplied with power from the power supply unit and is disposed on the upper surface of the display unit,
Connection part connected to external equipment,
A determination unit that determines whether there is a possibility that a function operation other than a call is performed during a call; and the determination unit determines that there is no possibility that a function operation other than a call is performed during a call When the standby state in which power consumption of the battery is suppressed is set on the touch panel, and the determination unit determines that there is a possibility that a function operation other than a call is performed during a call, A control unit for setting an active state on the touch panel;
The determination unit determines that there is a possibility that a functional operation other than a call is performed when the external device is connected to the connection unit;
Wherein, when the determination unit during a call start function operation other than the call is determined that could be made there, it sets the active state before the call start when an application corresponding to the touch input is performed and if it is, to continue the active state, the mobile communication terminal. A key input unit having a plurality of keys and receiving input by a user;
The control unit executes processing corresponding to the input when an input by a user is received by the key input unit when the standby state is set on the touch panel during a call. The portable communication terminal as described. Display,
A power supply unit that supplies power of a predetermined voltage from the battery;
A touch panel disposed on an upper surface of the display unit;
Connection part connected to external equipment,
A determination unit that determines whether there is a possibility that a function operation other than a call is performed during a call; and the determination unit determines that there is no possibility that a function operation other than a call is performed during a call The first setting for not accepting input from the user to the touch panel is set in the own device, and the determination unit determines that there is a possibility that a function operation other than a call may be performed during a call A control unit for setting a second setting for receiving input from the user to the touch panel in the own device;
The determination unit determines that there is a possibility that a functional operation other than a call is performed when the external device is connected to the connection unit;
When the determination unit determines that there is a possibility that a function operation other than a call may be performed at the start of a call, the control unit performs a second setting before starting the call when an application corresponding to touch input is being executed. the if set to ship to continue the second set, the mobile communication terminal.   The mobile communication terminal according to claim 3, wherein power of the battery consumed in the first setting is smaller than power of the battery consumed in the second setting.   The standby state in which power consumption of the battery is suppressed is set in the touch panel when the first setting is set, and the active state is set in the touch panel when the second setting is set. The portable communication terminal as described.

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