JP2011171894A - Portable terminal device and power saving control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To save power without impairing the convenience of a user. <P>SOLUTION: A CPU 1 makes a memory 6 store a function limit content which is selected or inputted by the operation of an operation part 3 by a user. The CPU 1 shifts to a power-saving mode when a moisture detection sensor 15 detects a wet state with the water of a portable telephone set, then limits the performance of a function according to the function limit content stored in the memory 6. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a portable terminal device such as a mobile phone having a power saving function, and a power saving control method for controlling the operation of the portable terminal device in a power saving mode.

  In recent years, functions of mobile terminal devices represented by mobile phones have been diversified, and current consumption and power consumption have been increasing with the diversification of functions. As a countermeasure, power saving can be achieved by stopping the display of liquid crystal displays, adjusting the brightness of the backlight, or turning it off if the device remains idle for a certain period of time. Yes. In recent years, waterproof terminals, which are increasing in number, are limited to camera photography and the like for underwater use, and functions that require wireless communication such as voice calls are limited. However, conventional waterproof mobile phones are not portable. Because the communication with the base station is performed in the standby state regardless of the state of the telephone, power is always supplied to the wireless unit and the control unit even when there is no need for wireless communication underwater or the like, resulting in battery consumption. There was a problem.

  On the other hand, the portable terminal device disclosed in Patent Document 1 detects a submerged state when water enters, and when the submerged state is detected, the power supplied to each part of the portable terminal device is shut off. Yes.

JP 2005-311637 A

  The power-off of the mobile terminal device disclosed in Patent Document 1 is intended to reduce hardware failures and prevent data loss. According to this mobile terminal device, the mobile terminal device is underwater. The current consumption can be reduced when the mobile terminal device is in a state where there is a lot of moisture and voice communication is not possible.

However, the mobile terminal device disclosed in Patent Document 1 has a problem that the user cannot set function restrictions when the mobile terminal device detects moisture and shifts to the power saving mode.
Further, in the mobile terminal device disclosed in Patent Document 1, the user cannot set a switching time from when the mobile terminal device detects moisture and shifts to the power saving mode until it returns to the normal mode. There was a point.

The present invention has been made in order to solve the above-described problems, and allows the user to set function restrictions when the mobile terminal device shifts to the power saving mode, thereby saving the user's convenience without impairing the user's convenience. It is an object of the present invention to provide a portable terminal device and a power saving control method that can be powered.
In addition, the present invention enables the user to set the switching time from when the portable terminal device transitions to the power saving mode to when the portable terminal device returns to the normal mode, thereby saving power without impairing the user's convenience. An object is to provide a portable terminal device and a power saving control method.

The portable terminal device according to the present invention includes means for executing a plurality of functions, operation means for a user to operate, and function restriction contents in a power saving mode for restricting execution of at least some of the plurality of functions. Storage means for storing in advance, function restriction content setting means for storing the function restriction content selected or input by the user by operating the operation means in the storage means, a sensor for detecting the state of the mobile terminal device, And a control unit that shifts to the power saving mode when the sensor detects a predetermined state of the mobile terminal device, and restricts execution of the function in accordance with the function restriction content stored in the storage unit. Is.
In addition, the portable terminal device of the present invention shifts to a power saving mode in which execution of a plurality of functions, operation means operated by a user, and restriction on execution of at least some of the plurality of functions are restricted. Storage means for storing in advance the switching time until the return to the normal mode, switching time setting means for storing in the storage means the switching time selected or input by the user operating the operating means, and measuring the time And a sensor for detecting the state of the mobile terminal device, and when the sensor detects a predetermined state of the mobile terminal device, the mode shifts to the power saving mode and the elapsed time measured by the measurement unit. And a control unit that performs detection determination every time the switching time is exceeded and returns to the normal mode when the predetermined state is not detected.

According to another aspect of the present invention, there is provided a power saving control method for a portable terminal device having a power saving mode that restricts execution of at least a part of a plurality of functions. The function restriction content setting step for storing the input function restriction content in the storage means, and when the sensor for detecting the state of the mobile terminal device detects a predetermined state, the mode is shifted to the power saving mode and stored in the storage means. And a power saving control step for restricting the execution of the function according to the function restriction content.
Further, the power saving control method of the present invention includes a switching time setting step for storing in a storage means a switching time selected or input by a user operating the operating means of the mobile terminal device, and a sensor for detecting the state of the mobile terminal device Shifts to the power saving mode when a predetermined state is detected, performs detection determination every time the measured elapsed time exceeds the switching time, and returns to the normal mode when the predetermined state is not detected And a power saving control step.

  ADVANTAGE OF THE INVENTION According to this invention, the power consumption of a portable terminal device can be reduced significantly by shifting to a power saving mode, when a sensor detects the predetermined state of a portable terminal device. In the present invention, by allowing the user to select or input the function restriction content in the power saving mode, it is possible to save power without impairing the user's convenience.

  Further, according to the present invention, the user can select or input the switching time from the transition to the power saving mode to the return to the normal mode, so that the power can be saved without impairing the convenience of the user. it can.

It is a block diagram which shows the structure of the mobile telephone with a waterproof function which is an example of the portable terminal device which concerns on the 1st Embodiment of this invention. It is a flowchart which shows the operation | movement when a user performs the setting of a power saving mode in the mobile phone which concerns on the 1st Embodiment of this invention. It is a figure which shows the example of the function restriction | limiting in the power saving mode in the mobile telephone which concerns on the 1st Embodiment of this invention. It is a flowchart which shows the operation | movement at the time of the power saving mode of the mobile telephone based on the 1st Embodiment of this invention. It is a flowchart which shows the operation | movement at the time of the power saving mode of the mobile telephone based on the 2nd Embodiment of this invention.

[First Embodiment]
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of a waterproof mobile phone as an example of the mobile terminal device according to the first embodiment of the present invention. In FIG. 1, the mobile phone controls the entire mobile phone and communicates with a CPU (control means) 1 that performs various arithmetic processing related to a call and processing related to power saving mode control, and a base station (not shown). A wireless unit 2 for performing the operation, an operation unit 3 connected to the CPU 1 and including a keyboard, a display unit 4 connected to the CPU 1 and configured to display various information, and the CPU 1 and the wireless unit 2 A DSP (digital signal) that performs frequency characteristic processing of received signals, wireless line connection processing with a base station, speech channel switching processing, audio signal processing between the radio unit 2 and the receiver 11 and the microphone 9 A processing unit) 5, a memory (storage means) 6 that is connected to the CPU 1 and the DSP 5, stores data such as calculation results in the CPU 1, audio data from the DSP 5, and A pattern such as a melody of a received sound is converted into an analog signal and output to a receiver amplifier 10 and a speaker amplifier 12 which will be described later, and an audio signal from a microphone amplifier 8 which will be described later is converted into a digital signal and output to the DSP 5 A / D / D / A converter 7, a microphone amplifier 8 that amplifies the audio signal from the microphone 9 and outputs the amplified signal to the A / D / D / A converter 7, and analog conversion by the A / D / D / A converter 7. A receiver amplifier 10 that amplifies the received audio signal and outputs it to the receiver 11; a speaker amplifier 12 that amplifies the audio signal analog-converted by the A / D / D / A converter 7 and outputs it to the speaker 13; The sensor circuit 14 that controls the detection sensor 15 and the mobile phone that is placed on the surface of the mobile phone casing are in water. A moisture detection sensor 15 for detecting that moisture is attached to the housing, a timer (measurement means) 16 for measuring time according to a command from the CPU 1, and a camera 17 comprising a C-MOS sensor and a CCD sensor. And an antenna 20 for communicating with the base station.

  The CPU 1 constitutes function restriction content setting means for storing the function restriction content selected or input by the user in the memory 6 and switching time setting means for storing the switching time selected or input by the user in the memory 6. The CPU 1 and other functional blocks constitute means for executing a plurality of functions of the portable terminal device. The CPU 1 executes processing as described below in accordance with a program stored in the memory 6.

  As the moisture detection sensor 15 used in the present embodiment, an electric humidity sensor that couples both ends of two different metals or semiconductors and measures an electromotive force between the two contacts can be used. This electrical humidity sensor includes a resistance change type humidity sensor that detects resistance changes caused by changes in humidity, and a capacitance type humidity sensor that detects capacitance changes caused by changes in humidity. Both capacitive humidity sensors can be used.

  Next, the present embodiment will be described with reference to FIG. 2, FIG. 3, and FIG. FIG. 2 is a flowchart showing an operation when the user sets the power saving mode to be shifted when the waterproof mobile phone according to the present embodiment is underwater or when a lot of moisture is attached to the housing. It is.

  In the standby state of the mobile phone (step S11), the CPU 1 determines whether or not the user has pressed a specific key on the operation unit 3 to input a command for shifting to an operation for setting the power saving mode. (Step S12). Here, when there is no command input, the setting content of the power saving mode already determined or the setting content determined by default is stored in the memory 6 (step S16).

On the other hand, when there is a command input for shifting to an operation for setting the power saving mode, the CPU 1 shifts to a process for setting the power saving mode and causes the display unit 4 to display a setting screen for the power saving mode. (Step S13).
The user operates the operation unit 3 while viewing the setting screen for the power saving mode, and selects the function restriction content as shown in FIG. 3 (step S14). In the present embodiment, the options of the function restriction contents when the mobile phone shifts to the power saving mode are registered in the memory 6 in advance. The user may select a desired function restriction content from the options displayed on the setting screen.

  For example, in the power saving mode “1” shown in FIG. 3, wireless communication (data communication), voice call, and mail reception become impossible when the mode is shifted to the power saving mode, and camera shooting (still image shooting) and moving image This indicates that shooting and music reproduction are possible, and that the answering service is automatically set as in the embodiment described later.

  The memory 6 is pre-registered with options for switching time from the transition to the power saving mode to the return to the normal mode. The user operates the operation unit 3 while viewing the setting screen for the power saving mode, and selects a switching time (step S15). And CPU1 memorize | stores the function restriction content and switching time which the user selected in the memory 6 (step S16). This completes the process for setting the power saving mode.

  FIG. 4 is a flowchart showing an operation in the power saving mode of the mobile phone according to the present embodiment. As described with reference to FIGS. 2 and 3, during the standby state of the mobile phone in which the power saving mode has been set (step S <b> 21), the sensor circuit 14 enters the operating state at intervals of several minutes and controls the moisture detection sensor 15. Then, the output of the moisture detection sensor 15 is transmitted to the CPU 1 (step S22). The CPU 1 determines whether or not the mobile phone is in a wet state based on the output value of the moisture detection sensor 15 (step S23). For example, when the output value of the moisture detection sensor 15 is equal to or greater than a predetermined threshold, the CPU 1 determines that the mobile phone is in a wet state.

  When the CPU 1 determines that the mobile phone is wet, the timer 16 starts measuring the elapsed time from the transition to the power saving mode (step S24), and shifts the mobile phone to the power saving mode (step S24). Step S25). The CPU 1 reads the setting contents in the power saving mode held in the memory 6, controls the function block whose operation is “impossible” with the function restriction contents set in step S14 of FIG. 2, and this function block. Stop unnecessary power consumption by stopping the power supply to

  For example, when the user selects the power saving mode “1” shown in FIG. 3, camera shooting, moving image shooting, and music playback are possible, but wireless communication, voice call, and mail reception are impossible. That is, the power supply to the wireless unit 2, the receiver amplifier 10, the speaker amplifier 12, etc. is stopped, and the functions of these functional blocks are stopped, so that the current consumption of the mobile phone is greatly reduced.

  Subsequently, in the power saving mode, the CPU 1 determines whether or not the elapsed time measured by the timer 16 has exceeded the switching time set in step S15 of FIG. 2 (step S26). When the elapsed time in the power saving mode is equal to or shorter than the switching time, the CPU 1 returns to step S25 and continues the power saving mode.

  If the elapsed time in the power saving mode exceeds the switching time, the CPU 1 returns to step S22 and performs water wetting detection determination (step S23) based on the output value of the moisture detection sensor 15. In the water wetness detection determination in step S23, for example, when the output value of the moisture detection sensor 15 is lower than a predetermined threshold, the CPU 1 determines that the mobile phone is not wet. If the CPU 1 determines that the mobile phone is not wet, the CPU 1 ends the power saving mode of the mobile phone (step S27) and returns to the normal mode in which each functional block operates normally (step S28).

  As described above, in this embodiment, the power consumption of the mobile phone can be significantly reduced by shifting to the power saving mode when the mobile phone is in a wet state. In this embodiment, the user can select the function restriction contents in the power saving mode and the switching time from the transition to the power saving mode to the return to the normal mode. It is possible to save power without impairing the power consumption.

  In this embodiment, the case where the user selects the power saving mode “1” shown in FIG. 3 is described. However, when the user selects the power saving mode “2”, wireless communication and mail reception are performed. Camera shooting, video shooting, and music playback are possible, but voice calls are not possible. That is, when the user selects the power saving mode “2”, the power supply to the wireless unit 2, the receiver amplifier 10, the A / D / D / A converter 7 is stopped, and the functions of these functional blocks are stopped. Therefore, power saving can be achieved. The same applies when the user selects the power saving mode “3”.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. In the present embodiment, the contents of incoming calls in the power saving mode can be confirmed by automatically setting the answering machine service when shifting to the power saving mode. Also in this embodiment, since the configuration of the mobile phone is the same as that of the first embodiment, description will be made using the reference numerals in FIG. FIG. 5 is a flowchart showing the operation of the mobile phone according to the present embodiment in the power saving mode. The same processes as those in FIG. 4 are denoted by the same reference numerals.

  The difference between the present embodiment and the first embodiment is that the CPU 1 automatically sets the answering machine service when shifting to the power saving mode (step S29). Thereby, in this Embodiment, since the user can confirm the content of the incoming call at the time of a power saving mode, a user's convenience can be improved.

[Third Embodiment]
In the first embodiment, the user can select the function restriction contents in the power saving mode and the switching time from the transition to the power saving mode to the return to the normal mode from the pre-registered options. However, the function restriction content and switching time may be arbitrarily set according to the user's preference.

[Fourth Embodiment]
In the first to third embodiments, the moisture detection sensor 15 is used. However, instead of the moisture detection sensor 15, a sensor such as an illuminance sensor may be used to determine the state of the mobile phone. . For example, when an illuminance sensor is used, it is determined whether or not to shift to the power saving mode according to the ambient brightness detected by the illuminance sensor. When the detected illuminance is equal to or higher than a predetermined threshold and is sufficiently bright, the mode is shifted to the power saving mode, for example, power saving control for reducing the luminance of the display unit 4 is performed. At this time, as a function restriction content in the power saving mode, the user can select or set the brightness of the display unit 4 in the power saving mode, or the switching time from the transition to the power saving mode to the return to the normal mode. The user can select or set. As described above, even in a state other than the case of being wet, the user can control various power saving modes by setting the function restriction content and the switching time in advance.

[Fifth Embodiment]
In the first to fourth embodiments, the case of using one sensor has been described. However, by combining a plurality of the moisture detection sensors 15, the illuminance sensors, or other sensors described above, the cellular phone can be made more detailed. Therefore, it is possible to control the power saving mode more finely.

[Sixth Embodiment]
In the first to fifth embodiments, a mobile phone has been described as an example of the mobile terminal device, but the present invention is not limited to this. The present invention can be applied to a device such as a PHS having a waterproof function, a digital camera, a video camera, a music player, and the like in the same manner as a mobile phone.

  The present invention can be applied to a mobile terminal device such as a mobile phone having a power saving function.

  DESCRIPTION OF SYMBOLS 1 ... CPU, 2 ... Radio | wireless part, 3 ... Operation part, 4 ... Display part, 5 ... DSP, 6 ... Memory, 7 ... A / D * D / A converter, 8 ... Microphone amplifier, 9 ... Microphone, 10 ... Receiver Amplifier, 11 ... Receiver, 12 ... Speaker amplifier, 13 ... Speaker, 14 ... Sensor circuit, 15 ... Moisture detection sensor, 16 ... Timer, 17 ... Camera, 20 ... Antenna.

Claims (10)

Means for performing a plurality of functions;
Operation means operated by the user;
Storage means for preliminarily storing function restriction contents during a power saving mode for restricting execution of at least some of the plurality of functions;
Function restriction content setting means for storing the function restriction content selected or input by the user operating the operation means in the storage means;
A sensor for detecting the state of the mobile terminal device;
When the sensor detects a predetermined state of the portable terminal device, the sensor includes a control unit that shifts to the power saving mode and restricts the execution of the function according to the function restriction content stored in the storage unit. Mobile terminal device. Means for performing a plurality of functions;
Operation means operated by the user;
Storage means for preliminarily storing a switching time from the transition to the power saving mode for restricting the execution of at least some of the plurality of functions until the return to the normal mode;
A switching time setting means for storing in the storage means the switching time selected or input by the user operating the operating means;
A measuring means for measuring time;
A sensor for detecting the state of the mobile terminal device;
When this sensor detects a predetermined state of the portable terminal device, the sensor shifts to the power saving mode, and performs detection determination every time the elapsed time measured by the measuring means exceeds the switching time, And a control means for returning to the normal mode when no state is detected. The portable terminal device according to claim 1 or 2,
The means for executing the plurality of functions includes means for executing a telephone communication function,
The portable terminal device, wherein the control means sets an answering machine service when the mode is shifted to the power saving mode. The mobile terminal device according to any one of claims 1 to 3,
The sensor is a moisture detection sensor that detects a wet state of the housing,
The mobile terminal device, wherein the control means shifts to the power saving mode when the moisture detection sensor detects a wet state. The mobile terminal device according to any one of claims 1 to 3,
The sensor comprises a plurality of sensors that detect the state of the mobile terminal device,
The said control means determines the state of a portable terminal device based on the output of these sensors, and shifts to the said power saving mode, The portable terminal device characterized by the above-mentioned. In a power saving control method of a mobile terminal device having a power saving mode that restricts execution of at least some of the plurality of functions,
A function restriction content setting step for storing in the storage means the function restriction content selected or input by the user operating the operation means of the mobile terminal device;
A power saving control step of shifting to the power saving mode and restricting the execution of the function according to the function restriction content stored in the storage means when a sensor for detecting the state of the mobile terminal device detects a predetermined state; A power saving control method comprising: In a power saving control method of a mobile terminal device having a power saving mode that restricts execution of at least some of the plurality of functions,
A switching time setting step in which the switching time selected or input by the user operating the operating means of the mobile terminal device is stored in the storage means;
When a sensor that detects the state of the mobile terminal device detects a predetermined state, the state shifts to the power saving mode, and a detection determination is performed every time the measured elapsed time exceeds the switching time. A power saving control method comprising: a power saving control step of returning to a normal mode when not detected. The power saving control method according to claim 6 or 7,
The power saving control method further comprises an answering machine setting step for setting an answering machine service when the mode is shifted to the power saving mode. The power saving control method according to any one of claims 6 to 8,
The sensor is a moisture detection sensor that detects a wet state of the housing,
In the power saving control step, when the moisture detection sensor detects a wet state, the power saving control step shifts to the power saving mode. The power saving control method according to any one of claims 6 to 8,
The sensor comprises a plurality of sensors that detect the state of the mobile terminal device,
The power saving control step determines a state of the mobile terminal device based on outputs of the plurality of sensors, and shifts to the power saving mode.

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