JP5341815B2 - Mobile phone, power saving control program, and power saving control method - Google Patents

Description

  The present invention relates to a mobile phone, a power saving control program, and a power saving control method, and more particularly to a mobile phone capable of setting a power saving mode for suppressing power consumption.

2. Description of the Related Art Conventionally, cellular phones capable of setting a power saving mode for reducing power consumption, for example, are widely known, and an example of this type of device is disclosed in Patent Document 1. In this background art portable information terminal device, as parameters of each part of the device in the power saving mode, on / off and duration of lighting of the key LED and LCD backlight, on / off of the vibrator, and time until the LCD partial mode, etc. Is provided. The casing of the portable information terminal device is provided with a stamina mode setting key. When the stamina mode setting key is operated, the CPU reads the setting contents of each parameter stored in the memory, and sets the power saving mode. Set.
JP 2002-353882 [H04B 7/26, H04M 1/00, H04M 1/73]

  However, in the power saving mode of the portable information terminal device of the background art, the setting of the power saving mode is prioritized, and the parameters individually set by the user are not prioritized.

  Therefore, a main object of the present invention is to provide a novel mobile phone, a power saving control program, and a power saving control method.

  Another object of the present invention is to provide a mobile phone, a power saving control program, and a power saving control method that can prioritize user settings even in the power saving mode.

  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.

  A first aspect of the present invention is a mobile phone that can set a power saving mode that suppresses power consumption, and that transitions to a power saving state when a specific time elapses in a specific state, in order to shift to a power saving state in the power saving mode A first storage unit that stores the time as the first set time, a second storage unit that stores the arbitrarily set time as the second set time for transitioning to the power saving state, and the power saving mode are set, Further, in the specific state, when the determination unit determines whether the second setting time is shorter than the first setting time and the determination unit determines that the second setting time is shorter than the first setting time, 2 is a mobile phone including a setting unit that sets a set time as a specific time.

  In the first invention, the cellular phone (10: reference numerals exemplifying corresponding parts in the embodiment; the same applies hereinafter) is set in a power saving mode for suppressing power consumption in accordance with an operation by a user. In addition, when a specific time elapses in a specific state where power consumption is large, the mobile phone transitions to a power saving state in order to suppress power consumption. The first storage unit (38) is a storage device such as a RAM, for example, and stores a first set time (power saving set value) as a time for shifting to the power saving state in the power mode. Moreover, a 2nd memory | storage part (24, S11) memorize | stores the time arbitrarily set, for example by the user as 2nd setting time (user setting value) for changing to a power saving state. For example, the determination unit (24, S23) determines whether or not the second set time is shorter than the first set time when the power saving mode is set in the mobile phone and the state is changed to the specific state. When it is determined that the second setting time is shorter than the first setting time, the setting unit (24, S27) sets the second setting time as the specific time.

  According to the first aspect, since the second set time that is shorter than the first set time is set as the specific time, the power consumption can be suppressed compared to the case where the first set time is set as the specific time. Therefore, if the setting by the user can suppress power consumption rather than the setting of the power saving mode, the setting by the user can be prioritized.

  A second invention is dependent on the first invention and further includes a display and a switching unit that switches the display to a high luminance display or a low luminance display, and the specific state includes a state in which the display is switched to a high luminance display. In the power saving state, the display is switched to the low luminance display.

  In the second invention, the mobile phone includes a display (30), and the switching unit (32) switches between high luminance display of the display or low luminance display whose power consumption of the display is lower than that of the high luminance display. For example, when a specific time elapses after the display is switched to the high luminance display, the display is switched to the low luminance display.

  According to the second aspect of the invention, a display with high power consumption can be switched to low-brightness display in a power saving state, so that power consumption can be effectively suppressed.

  The third invention is dependent on the second invention and further includes an input unit (26) in which an input operation is performed. In the specific state, the display is switched to a high luminance display, and the input operation is performed on the input unit. It also includes a state that is not broken.

  In the third invention, the input unit (26) is also called a key input device, and an input operation is performed by the user. The specific state includes a state in which the display is switched to high luminance display and no input operation is performed on the input unit.

  According to the third aspect of the invention, when the mobile phone is left unused while the power consumption is large, the state transits to the power saving state.

  4th invention can set the power saving mode which suppresses power consumption, when specific time passes in a specific state, it changes to a power saving state, and in power saving mode, the time for changing to a power saving state is set to 1st A storage unit (S11) that stores the time set as the second set time for causing the processor (24) of the mobile phone (10) to store the arbitrarily set time to the power saving state, and stores the time as the time. When the second setting time is shorter than the first setting time by the determination unit (S23) that determines whether or not the second setting time is shorter than the first setting time when set and further in the specific state When it is determined, the power saving control program causes the second setting time to function as a setting unit (S27) that sets the specific time.

  In the fourth invention, similarly to the first invention, if the setting by the user can suppress power consumption rather than the setting of the power saving mode, the setting of the user can be prioritized.

  According to a fifth aspect of the present invention, a power saving mode for suppressing power consumption can be set. When a specific time elapses in a specific state, the power saving mode is entered, and in the power saving mode, a time for making a transition to the power saving state is first set. A power saving control method for the mobile phone (10), which is stored as time, wherein an arbitrarily set time is stored as a second set time for transitioning to a power saving state (S11), and the power saving mode is When it is set and is in a specific state, it is determined whether or not the second setting time is shorter than the first setting time (S23), and when it is determined that the second setting time is shorter than the first setting time, This is a power saving control method in which the second set time is set as the specific time (S27).

  In the fifth invention, similarly to the first invention, if the setting by the user can suppress the power consumption rather than the setting of the power saving mode, the setting of the user can be prioritized.

  According to the present invention, setting by the user has priority over setting by the user if the power consumption can be suppressed rather than setting by the power saving mode.

  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.

FIG. 1 is a block diagram showing the electrical configuration of a mobile phone according to an embodiment of the present invention. FIG. 2 is an illustrative view showing an appearance of the mobile phone shown in FIG. FIG. 3 is an illustrative view showing one example of a configuration of a user setting table and a power saving table stored in the RAM shown in FIG. FIG. 4 is an illustrative view showing another example of the configuration of the user setting table shown in FIG. FIG. 5 is an illustrative view showing one example of a memory map of the RAM shown in FIG. FIG. 6 is a flowchart showing user setting processing of the processor shown in FIG. FIG. 7 is a flowchart showing the high luminance display control processing of the processor shown in FIG.

  Referring to FIG. 1, a mobile phone 10 of this embodiment is a kind of mobile terminal, and includes a processor 24 called a CPU or a computer. The processor 24 includes a wireless communication circuit 14, an A / D 16, a first D / A 20a, a second D / A 20b, a key input device 26, a display driver 28, a BL (Back Light) control circuit 32, a flash memory 36, The RAM 38, the LED control circuit 40, the magnetic sensor 44, and the power supply circuit 48 are connected. The antenna 12 is connected to the wireless communication circuit 14, the microphone 18 is connected to the A / D 16, and the first speaker 22a is connected to the first D / A 20a and the second D / A 20b via an amplifier (not shown). And the 2nd speaker 22b is connected. A display 30 is connected to the display driver 28, and a backlight 34 for improving the visibility of the display 30 is connected to the BL control circuit 32. The LED control circuit 40 is connected to the first LED 42 a and the second LED 42 b, and the power supply circuit 48 is connected to the secondary battery 50.

  The processor 24 governs overall control of the mobile phone 10. The RAM 38 serving as the first storage unit is used as a work area (including a drawing area) or a buffer area of the processor 24. Content data such as characters, images, sounds, sounds, and videos of the mobile phone 10 is recorded in the flash memory 36.

  The A / D 16 converts an analog audio signal for audio or sound input through the microphone 18 connected to the A / D 16 into a digital audio signal. The first D / A 20a and the second D / A 20b convert (decode) the digital audio signal into an analog audio signal, and supply the analog audio signal to the first speaker 22a and the second speaker 22b through an amplifier. Therefore, sound or sound corresponding to the analog sound signal is output from the first speaker 22a and the second speaker 22b.

  The key input device 26 as an input unit includes a call key and a call end key, and also includes dial keys including a “0”-“9” key, a “*” key, and a “#” key. Then, information on the keys operated by the user (key data) is input to the processor 24.

  When each key included in the key input device 26 is operated, a feedback process is executed, and a feedback sound is output from the second speaker 22b. Therefore, the user can obtain an operational feeling for the key input operation by listening to the feedback sound.

  The display driver 28 controls display on the display 30 connected to the display driver 28 under the instruction of the processor 24. The display driver 28 includes a video memory (not shown) that temporarily stores image data to be displayed.

  The BL control circuit 32 controls the luminance of the backlight 34 connected to the BL control circuit 32 under the instruction of the processor 24. The backlight 34 is installed on the display panel included in the display 30 based on the edge light method. That is, the BL control circuit 32 can switch the display 30 to the high luminance display or the low luminance display by controlling the backlight 34. Therefore, the BL control circuit 32 is sometimes called a switching unit.

  However, when the high-brightness display on the display 30 is maintained, power consumption increases. For this reason, when the display 30 is switched to the high luminance display and the specific time elapses while the key input operation is not performed on the key input device 26 (non-operation state), the display 30 is switched to the low luminance display. That is, the mobile phone 10 can transition to the power saving state by switching the display 30 to the low luminance display. In addition, although LED is employ | adopted as a light source of the backlight 34, a cold cathode tube etc. may be employ | adopted. Further, the power saving state of the present embodiment includes a state in which the display 30 and the backlight 34 are turned off.

  The LED control circuit 40 controls the luminance of the first LED 42a connected to the LED control circuit 32 and the emission color of the second LED 42b under the instruction of the processor 24. The first LED 42 a is attached to the back of the key included in the key input device 26. Therefore, when the first LED 42a emits light, the visibility of the key is improved. Further, the second LED 42b can notify the state of the mobile phone 10 by the emission color or the blinking interval. For example, in the present embodiment, the state of the incoming voice call can be notified by the emission color or blinking of the second LED 42b.

  The magnetic sensor 44 detects magnetism generated by the magnet 46 and outputs a magnetism value to the processor 24. Then, the processor 24 detects the opening / closing of the mobile phone 10 (see FIG. 2) according to the magnetic value output by the magnetic sensor 44.

  The power supply circuit 48 supplies power based on the voltage of the secondary battery 50 to the entire system. Here, when the power supply circuit 48 supplies power to the entire system, it is referred to as a power-on state. On the other hand, when the power supply circuit 48 does not supply power to the entire system, it is referred to as a power-off state. The power supply circuit 48 is activated when a power-on operation is performed by the key input device 26 in the power-off state, and is stopped when a power-off operation is performed by the key input device 26 in the power-off state. Further, even in the power-off state, the power supply circuit 48 is activated when the charging of the secondary battery 50 is detected, and stops in response to the completion of the charging of the secondary battery 50. Moreover, the state in which the secondary battery 50 is charged is referred to as a charged state. Further, “charging” means that the terminals Ta and Tb are connected to an external power source and are supplied with electric power from the external power source, and the secondary battery 50 stores electric energy.

  The terminal Ta is a + terminal and the terminal Tb is a-terminal. Further, the power supply circuit 48 detects charging by measuring the current value of the secondary battery 50. Furthermore, when the charging state is notified from the charging circuit 48, the processor 24 causes the second LED 42b to emit light in red, for example.

  The wireless communication circuit 14 is a circuit for performing wireless communication in the CDMA system. For example, when the user instructs voice transmission using the key input device 26, the wireless communication circuit 14 performs voice transmission processing under the instruction of the processor 24 and outputs a voice transmission signal via the antenna 12. The voice transmission signal is transmitted to the other party's telephone through a base station and a communication network (not shown). Then, when the incoming call processing is performed at the other party's telephone, a connection state (communication possible state) is established, and the processor 24 executes the call processing.

  The normal call processing will be specifically described. A modulated voice signal (high frequency signal) transmitted from the other party's telephone is received by the antenna 12. The received modulated audio signal is demodulated and decoded by the wireless communication circuit 14. The received voice signal obtained by these processes is converted into an analog voice signal by the first D / A 20a and then output from the first speaker 22a. On the other hand, the transmission voice signal captured through the microphone 18 is converted into a digital voice signal by the A / D 16 and then given to the processor 24. The transmission signal converted into the digital audio signal is subjected to encoding processing and modulation processing by the wireless communication circuit 14 under the instruction of the processor 24, and is output via the antenna 12. Therefore, the modulated voice signal is transmitted to the other party's telephone through the base station and the communication network.

  In addition, when a transmission signal from the other party's telephone is received by the antenna 12, the wireless communication circuit 14 notifies the processor 24 of an incoming call (also referred to as an incoming voice call). In response to this, the processor 24 controls the display driver 28 to display the caller information (phone number) described in the incoming call notification on the display 30. At substantially the same time, the processor 24 causes the second speaker 22b to output a ringtone (sometimes called a ringing melody or a ringing voice) and causes the second LED 42b to blink in green, for example. Furthermore, the processor 24 vibrates the mobile phone 10 by driving (rotating) a motor (not shown).

  When the user performs a response operation using the call key, the wireless communication circuit 14 executes a voice incoming call process under the instruction of the processor 24, and a connection state (communication enabled state) is established. Performs the normal call processing described above.

  Then, when a call end operation is performed with the call end key after shifting to the call ready state, the processor 24 controls the wireless communication circuit 14 to transmit a call end signal to the other party. Then, after transmitting the call end signal, the processor 24 ends the call process. The processor 24 also terminates the call process when a call end signal is received from the other party first. Furthermore, the processor 24 also ends the call process when a call end signal is received from the mobile communication network regardless of the call partner.

  In addition, the mobile phone 10 has a power saving function that can arbitrarily set a power saving mode for suppressing power consumption. For example, when the power saving mode is set in the mobile phone 10, settings related to a specific time for transitioning to the power saving state, feedback processing by the second speaker 22b, timings of lighting and blinking of the first LED 42a and the second LED 42b, and the like are summarized. Changed. The user can easily set the power saving mode by operating the key input device 26.

  Note that the cellular phone 10 can execute a mail function and a browser function by establishing data communication with a server connected to a network (not shown). Furthermore, an address book function for managing address book data stored in the RAM 38 can also be executed.

  2A is an external view showing an external appearance of the slide type mobile phone in a closed state, and FIG. 2B is an external view showing an external appearance of the slide type mobile phone in an open state. (C) is an external view showing the back of the external appearance of the slide type mobile phone in the closed state. 2A to 2C, the mobile phone 10 includes a first casing C1 and a second casing C2 each having a planar rectangular shape. The thickness of the first casing C1 and the second casing C2 is substantially the same.

  The first casing C1 is connected to the second casing C2 by a slide mechanism (not shown) in a state of being overlaid on the second casing C2. Therefore, as shown in FIG. 2B, the first casing C1 can slide in the length direction of the second casing C2. In addition, each of the terminal Ta and the terminal Tb is provided on a side surface of the second casing C2. In addition, the board | substrate each incorporated in the 1st housing | casing C1 and the 2nd housing | casing C2 is electrically connected by the flexible printed wiring board.

  A microphone 18 (not shown) is built in the second housing C2, and an opening OP2 leading to the built-in microphone 18 is provided on one upper surface in the lengthwise direction of the second housing C2. The first speaker 22a (not shown) is built in the first housing C1, and the opening OP1 leading to the built-in first speaker 22a is provided on one upper surface in the lengthwise direction of the first housing C1. Further, the second speaker 22b (not shown) is built in the second housing C2, and an opening OP3 that communicates with the built-in second speaker 22b is provided on the lower surface of the second housing in the longitudinal direction.

  The key input device 26 includes a first key group 26a including a plurality of keys and a second key group 26b. The first key group 26a includes a direction key, a call key, an end key, a menu, and a confirmation key, and is provided on the upper surface of the first casing C1. The second key group 26b includes a numeric keypad and is provided on the upper surface of the second casing C2. The display 30 is attached so that the monitor screen is exposed on the upper surface of the first housing C1.

  For example, the user operates the numeric keypad to input a telephone number while confirming the display 30, performs a call operation using the call key, and performs a call end operation using the call end key. Further, the user can display a menu screen by operating the menu key, and can select an arbitrary menu using the direction key or the like. Further, the user can confirm the selected menu by operating the confirmation key. Then, the user turns on / off the power of the mobile phone 10 by pressing and holding the end call key.

  In addition, a window W that communicates with the second LED 42b is provided on one upper surface of the first housing C1 in the length direction, and a plastic that transmits visible light is fitted into the window W1. Thereby, the user can also confirm the emission color and blinking of the second LED 42b by visually recognizing the upper surface of the first housing C1.

  The magnetic sensor 44 is built in the other side of the first casing C1 in the length direction, and the magnet 46 is in the closed state shown in FIG. Built in one of the length directions. The magnetic sensor 44 outputs a maximum value in the state shown in FIG. 2A and outputs a minimum value in the state shown in FIG. That is, the processor 24 detects an open state when the magnetic sensor 44 outputs a maximum value, and detects a closed state when the magnetic sensor 44 outputs a minimum value.

  In addition, the mobile phone 10 has an open function and a close function that change the display of the display 30 in response to detection of opening and closing. For example, when the mobile phone 10 is changed from the closed state to the open state, the display 30 is switched to the high luminance display by the open function. Further, when the cellular phone 10 is changed from the open state to the closed state, and the non-operation state is maintained for 2 seconds, the display on the display 30 is erased by the close function, and the power of the display 30 and the backlight 34 is turned off. .

  The no-operation state in the present embodiment includes a state change due to the start / end of charging and a state where there is no incoming voice call.

  Moreover, the magnetic sensor 44 and the magnet 46 may be called a detection part. Further, the present invention is not limited to the case where the magnetic sensor 44 and the magnet 46 are used as the detection unit. In addition, for example, a pressing unit provided on one side of the housing according to the open / close state is provided on the other side. It may be a mechanism that detects opening and closing by mechanically pressing a pressed portion of the casing provided in the casing to detect a change in the energized state due to the pressed state.

  Further, the antenna 12, the wireless communication circuit 14, the processor 24, the display driver 28, the BL control circuit 32, the backlight 34, the flash memory 36, the RAM 38, the LED control circuit 40, the first LED 42a, the power supply circuit 48, and the secondary battery 50 are It is built in the first casing C1 or the second casing C2, and is not shown in FIGS.

  3A and 3B are illustrative views showing settings for the display 30, the second speaker 22b, and the second LED 42b. Referring to FIG. 3A, various settings in the normal mode are stored in a user setting table, and the user setting table includes “item” and “detail” rows. For example, “30 seconds” is recorded corresponding to “display (BL lighting)”. This indicates that the high-intensity display on the display 30 is maintained for 30 seconds in a no-operation state.

  Also, “5 seconds” is recorded corresponding to “display (light)”. This indicates that the low-intensity display (slight light state) of the display 30 is maintained for 5 seconds in a no-operation state. Note that when the low-luminance display is maintained for 5 seconds without any operation, the power of the display 30 and the backlight 34 is turned off.

  That is, the mobile phone 10 transitions to the power saving state when the display 30 is switched to the high-brightness display and 30 seconds have passed without any operation. Further, when the no-operation state has elapsed for 5 seconds after the transition to the power saving state, the display on the display 30 is erased, and the power saving state is further reduced. That is, in this embodiment, the low-brightness state (slight light state) when the high-brightness state is shifted to the low-brightness state is defined as a power-saving state, and the low-brightness state (slight-light state) that is the power-saving state is defined. ) Is also defined as a power saving state.

  In addition, “ON” is recorded in correspondence with “Lamp (calling lamp)”. This indicates that the second LED 42b emits light during a call. Further, “2-second intervals” are recorded in correspondence with “lamps (notification lamps)”. This indicates that the second LED 42b for notifying the state of the mobile phone 10 blinks at “2 second intervals”. If the second LED 42b is set not to blink, “OFF” is stored instead of “2 second interval”.

  Furthermore, “ON” is recorded corresponding to “key operation sound”. This indicates that the feedback sound is set to be output from the second speaker 22b. Then, “OFF” is displayed in correspondence with “Close”. This indicates that the close function is set to “OFF”. In this case, even if the cellular phone 10 is changed from the open state to the closed state and the non-operation state is maintained for 2 seconds, the power of the display 30 and the backlight 34 is not turned off.

  In the user setting table, an initial value (default value) is set when the mobile phone 10 is shipped from the factory. Further, the contents of the user setting table can be arbitrarily changed by a setting GUI (not shown). However, in other embodiments, some settings may not be changed.

  Referring to FIG. 3B, various settings in the power saving mode are stored in the power saving table, and the configuration thereof is the same as that of the user setting table. However, in the power saving table, “10 seconds” and “5 seconds” are recorded in correspondence with “display (BL lighting)” and “display (light)”. That is, the high luminance display of the display 30 is maintained for 10 seconds in the non-operating state, and the low luminance display is maintained for 5 seconds in the non-operating state. That is, the mobile phone 10 in the power saving mode shifts to the power saving state 20 seconds earlier than the mobile phone 10 in the normal mode. Therefore, the power consumption of the mobile phone 10 in which the power saving mode is set is lower than that of the mobile phone 10 in which the normal mode is set.

  Further, “OFF” and “5-second interval” are stored in correspondence with “lamp (calling lamp)” and “lamp (notification lamp)”. That is, the second LED 42 b is turned off during a call, and blinks at “5-second intervals” when notifying the state of the mobile phone 10.

  Furthermore, “OFF” is stored corresponding to “key operation sound”, and “ON” is stored corresponding to “close”. That is, in the mobile phone 10 in which the power saving mode is set, the feedback sound corresponding to the key input operation is set not to be output, and the previous close function is turned on.

  Here, in the present embodiment, when the content arbitrarily set by the user can suppress the power consumption, the user's setting is given priority over the content set in the power saving mode. For example, the user sets “5 seconds” as the time for maintaining the high-intensity display on the display 30 in the non-operation state for the setting GUI, and “0 seconds as the time for maintaining the low-intensity display (slight light)” "Is set, the user setting table is updated as shown in FIG.

  Referring to FIG. 4, in the user setting table set by the user, “5 seconds” is stored as “display (BL lighting)”, and “0 seconds” is stored as “display (light)”. . In this case, when 5 seconds elapses while the high luminance display of the display 30 is not operated, the display 30 is switched from the high luminance display to the low luminance display, and immediately after that, the power of the display 30 and the backlight 34 is turned off. That is, if attention is paid to the time during which the high-intensity display on the display 30 is maintained, the time set by the user is shorter. That is, the power consumption can be suppressed by the user setting rather than the power saving mode setting.

  Therefore, if the user setting table shown in FIG. 4 is stored in the RAM 38 and the power saving mode is set, the high luminance display of the display 30 is switched to the low luminance display after 5 seconds have passed without any operation. Thus, in this embodiment, the user set value can be set as the specific time even in the power saving mode.

  Further, in this embodiment, in the power saving state, the display 30 with high power consumption can be switched to low luminance display, so that power consumption can be effectively suppressed. Further, in the mobile phone 10 of this embodiment, when the mobile phone 10 is left unused while the power consumption is large, the mobile phone 10 transitions to a power saving state.

  When the power saving table can also be set arbitrarily, the user can reflect his / her setting in both the normal mode and the power saving mode only by setting so that the power consumption can be suppressed. That is, since the user can set without being conscious of the power saving mode and the normal mode, the convenience for the user is improved.

  FIG. 5 is an illustrative view showing a memory map 300 of the RAM 38. The memory map 300 of the RAM 38 includes a program storage area 302 and a data storage area 304. Further, a part of the program and data is read from the flash memory 36 all at once or partially and sequentially as necessary, stored in the RAM 38, and then processed by the processor 24.

  The program storage area 302 stores a program for operating the mobile phone 10. For example, a program for operating the mobile phone 10 includes a user setting program 310, a high brightness display control program 312 and a low brightness display control program 314.

  The user setting program 310 is a program for arbitrarily setting the contents of the user setting table. The high brightness display control program 312 is a program for controlling the display 30 for high brightness display. The low luminance display control program 314 is a program for controlling the display 30 for low luminance display.

  Although not shown, the program for operating the mobile phone 10 includes a program for controlling the power saving function, a program for inputting characters, and a program for controlling charging of the secondary battery 50. And a program for controlling the power supply circuit 48 and the like.

  Subsequently, a threshold buffer 330 is provided in the data storage area 304, and user setting table data 332 and power saving table data 334 are stored therein. Further, the data storage area 304 is provided with a power saving flag 336, a key operation flag 338, a high luminance flag 340, a low luminance flag 342, an open / close flag 344 and a charging flag 346, and a high luminance counter 348.

  The threshold buffer 330 is a buffer that temporarily stores a threshold of determination processing for switching from high luminance display to low luminance display in the high luminance display control program 312. Note that the threshold value stored in the threshold buffer 330 corresponds to a specific time. The user setting table data 332 is table data having the configuration shown in FIG. The power saving table data 334 is table data having the configuration shown in FIG.

  The power saving flag 336 is a flag for determining whether or not the power saving mode is set. For example, the power saving flag 336 is composed of a 1-bit register. For example, when the power saving flag 336 is turned on (established), a data value “1” is set in the register. On the other hand, when the power saving flag 336 is turned off (not established), a data value “0” is set in the register. The power saving flag 336 is turned on when the user performs an operation for setting the power saving mode. Hereinafter, since the other flags have the same configuration, a detailed description of the flag configuration is omitted.

  The key operation flag 338 is a flag that is switched on / off based on key data output from the key input device 26, and is used to determine whether or not a key input operation has been performed. The high luminance flag 340 and the low luminance flag 342 are flags that are turned on / off in accordance with a command for controlling the BL control circuit 32. The high brightness flag 340 is used to determine whether the display 30 is switched to high brightness display, and is used to determine whether the display 30 is switched to low brightness display.

  The open / close flag 344 is a flag that is switched on / off based on a value output from the magnetic sensor 44. Therefore, when the open / close flag 344 is on, the mobile phone 10 is in an open state, and when it is off, the mobile phone 10 is in a closed state. The charge flag 346 is a flag that is turned on / off by a command for controlling the power supply circuit 48 and is used to determine whether or not the secondary battery 50 is charged. The high luminance counter 348 is a counter for counting time when the display 30 is in high luminance display. For example, the high-intensity counter 348 is counted in a no-operation state, and is reset when a key input operation, an incoming voice call, and charging start / end of the secondary battery 50 are detected.

  Although not shown, the data storage area 304 stores standby image data and the like, and is provided with counters and flags necessary for the operation of the mobile phone 10.

  The processor 24 performs a user setting process shown in FIG. 6 and a high brightness display control process shown in FIG. 7 under the control of a Linux (registered trademark) -based OS such as Android (registered trademark) and REX, and other OSs. Including multiple tasks in parallel.

  FIG. 6 is a flowchart of the user setting process. For example, when the user performs an operation of changing the contents of the user setting table shown in FIG. 3A, the processor 24 displays the setting GUI in step S1. That is, the processor 24 displays on the display 30 a GUI that enables setting of each item of the user setting table. Subsequently, in step S3, it is determined whether or not the end operation is performed. That is, it is determined whether or not an operation for ending the user setting process has been performed on the key input device 26. If “YES” in the step S3, that is, if an ending operation is performed, the user setting process is ended.

  On the other hand, if “NO” in the step S3, that is, if the ending operation is not performed, it is determined whether or not the confirming operation is performed in a step S5. That is, it is determined whether or not an operation for determining the result of the setting operation for the setting GUI has been performed. If “NO” in the step S5, if the confirming operation is not performed, it is determined whether or not the setting operation is performed in a step S7. For example, it is determined whether or not an operation for setting the item “display (BL lighting)” shown in FIG. If “NO” in the step S7, that is, if the setting operation is not performed, the process returns to the step S3. On the other hand, if “YES” in the step S7, for example, if an operation for setting the item “display (BL lighting)” is performed, the setting process is executed in a step S9, and the process returns to the step S3. For example, if “5” is input by the key input device 26, as shown in FIG. 4, the item “display (BL lighting)” is set to “5 seconds”.

  If “YES” in the step S5, that is, if a confirming operation is performed, the result set in the step S11 is stored, and the user setting process is ended. For example, if the item “Display (BL is lit)” is set to “5 seconds”, the user setting table shown in FIG. The processor 24 that executes the process of step S11 functions as a second storage unit.

  FIG. 7 is a flowchart of the high luminance display control process. When the display 30 is switched to the high luminance display and the high luminance flag 340 is turned on, the processor 24 determines whether or not the power saving mode is set in step S21. That is, it is determined whether or not the power saving flag 336 is on. If “NO” in the step S21, that is, if the power saving mode is not set, the process proceeds to a step S27. On the other hand, if “YES” in the step S21, that is, if the power saving mode is set, it is determined whether or not the user set value is smaller than the power saving set value in a step S23. In step S23, first, the value of “display (BL lighting)” in the user setting table is read as the user setting value (second setting time), and the value of “display (BL lighting)” in the power saving table is set as the power saving setting. Read as a value (first set time). Then, it is determined whether or not the read user setting value is smaller than the power saving setting value. That is, the processor 24 determines whether or not the power consumption due to the operation of the mobile phone 10 based on the read user setting value is less than the power consumption due to the operation of the mobile phone 10 according to the power saving setting value. The processor 24 that executes the process of step S23 functions as a determination unit.

  For example, when attention is paid to “display (BL lighting)” in the tables of FIGS. 3A and 3B, the user setting value is “30” and the power saving setting value is “10”. Therefore, “NO” is determined in step S23, and a threshold is set based on the power saving setting value in step S25. That is, in step S25, based on “10” that is the power saving setting value, a threshold value for determining to switch the display 30 to the low luminance display (slight light state) is calculated, and the calculated value is used as the threshold buffer 330. To store. That is, in step S25, the power saving set value read from the power saving table is set as the characteristic time.

  If attention is paid to “display (BL lighting)” in the tables of FIGS. 3B and 4, the user setting value is “5” and the power saving setting value is “10”. Therefore, “YES” is determined in step S23, and a threshold is set based on the user set value in step S27. That is, in step S <b> 27, the threshold value is calculated based on “5” that is the user installation value, and the calculated value is stored in the threshold value buffer 330. That is, in step S27, the user setting value read from the user setting table is set as the specific time. The processor 24 that executes the process of step S25 functions as a setting unit.

  In step S29, it is determined whether or not an operation has been performed. That is, it is determined whether or not the key operation flag 338 is turned on by performing a key input operation on the key input device 26. If “YES” in the step S29, that is, if a key input operation is performed, the process proceeds to a step S43. On the other hand, if “NO” in the step S29, that is, if a key input operation is not performed, it is determined whether or not an incoming call is received in a step S31. For example, it is determined whether or not an incoming voice call is notified from the wireless communication circuit 14. If “YES” in the step S31, that is, if an incoming call is notified from the wireless communication circuit 14, the process proceeds to a step S43. On the other hand, if “NO” in the step S31, that is, if there is no incoming call, the process proceeds to a step S33.

  Subsequently, in step S33, it is determined whether or not the charge flag 346 has changed. For example, it is determined whether or not the secondary battery 50 is in a charged state and the charging flag 346 is turned on by connecting an external power source to the terminal Ta and the terminal Tb of the mobile phone 10. If “YES” in the step S33, for example, if the secondary battery 50 is in a charged state, the process proceeds to a step S43. On the other hand, if “NO” in the step S33, that is, if there is no change in the secondary battery 50, the process proceeds to a step S35. Even when the charging flag 346 is switched from on to off when the charging of the secondary battery 50 is completed, “YES” is determined in the step S33. That is, in step S33, if charging of the secondary battery 50 is completed or completed, “YES” is determined.

  In step S35, it is determined whether or not the closed state is established. That is, it is determined whether the open / close flag 344 has been switched from on to off. If “YES” in the step S35, that is, if the mobile phone 10 is changed from the open state to the closed state, the process proceeds to a step S45. On the other hand, if “NO” in the step S35, for example, if the mobile phone 10 remains in an open state, the high luminance counter 348 is incremented in a step S37. That is, the high luminance counter 348 is incremented to count the time during which the high luminance display of the display 30 is maintained in the no operation state.

  Subsequently, in step S39, it is determined whether or not the value of the high luminance counter 348 is larger than a threshold value. For example, if the threshold value is a value corresponding to 5 seconds, it is determined whether or not the value of the high luminance counter 348 is larger than the value corresponding to 5 seconds. That is, in step S39, it is determined whether or not the high-brightness state of the display 30 has been maintained for a longer time than the specific time (here, 5 seconds) in the no-operation state. If “YES” in the step S39, that is, if the value of the high brightness counter 348 is larger than a value corresponding to 5 seconds, the display 30 is set in a low light state in a step S41. That is, the processor 24 issues a command for switching the display 30 to the low luminance display to the BL control circuit 32. Then, when the process of step S41 is finished, the high luminance display process is finished. Note that when the display 30 is switched to the low luminance display by the process of step S41, the low luminance flag 342 is turned on.

  On the other hand, if “NO” in the step S39, that is, if the display 30 is displayed with high luminance and no operation has been performed for 5 seconds, the process returns to the step S29. That is, the process after step S29 is repeated. If “YES” in any of steps S29 to S33, that is, if the display 30 is displayed with high brightness and a key input operation, voice incoming call or charging start / end of the secondary battery 50 is detected, step In S43, the value of the high brightness counter 348 is reset. That is, the high brightness counter 348 is reset so that the display 30 is not switched to the low brightness display while the mobile phone 10 is being operated by the user. Then, when the process of step S43 ends, the processor 24 returns to step S21. This is because there is a possibility that the setting of the power saving mode may be changed by a key input operation. Therefore, when the high brightness counter 348 is reset, the processor 24 returns to the process of step S21.

  Further, if the mobile phone 10 is changed from the open state to the closed state while the processes of steps S29 to S39 are being repeatedly executed, “YES” is determined in step S35, and whether the close is valid in step S45. Judge whether or not. For example, if the power saving mode is not set, it is determined whether or not the “close” item shown in FIG. 4 is “ON”. That is, in step S45, it is determined whether or not the close function is enabled. If “NO” in the step S45, that is, if the close function is not enabled, the process returns to the step S37. On the other hand, if “YES” in the step S45, that is, if the close function is enabled, a timer process is executed in a step S47. That is, a 2-second timer process is executed to prevent the power of the display 30 and the backlight 34 from being turned off at the same time when the mobile phone 10 is closed. When the 2-second timer process is executed in step S45, the display 30 and the backlight 34 are turned off in step S49, and the high-luminance display control process ends. That is, when the process of step S49 is executed, the display on the display 30 is erased.

  In addition, the process of step S29-S39 is repeated about every 10 ms. Therefore, the high luminance counter 348 is counted (incremented) every 10 ms. Therefore, if the specific time is 5 seconds, the threshold value is “500”. However, in another embodiment, the user setting value or the power saving setting value may be set as the threshold value as it is by executing a timer process so that steps S29 to S39 are repeated every second. .

  Further, the low luminance display process is almost the same as the flow chart of the high luminance display process, and thus the flow is not shown. In the low luminance display process, in the process corresponding to step S23, the item of “display (light)” in each table is compared. In the process corresponding to steps S25 and S27, the specific time is based on the numerical value of the above item. Is set. In the processing corresponding to steps S37, S39, and S43, the value of a low luminance counter (not shown) is incremented, compared, or reset instead of the high luminance counter 348. If “YES” is determined in the step S39, the process corresponding to the step S49 is executed instead of the process in the step S41. That is, when the display 30 is in a low luminance display, the power of the display 30 and the backlight 34 is turned off when a specific time has elapsed.

  As can be seen from the above description, the cellular phone 10 includes the key input device 26, the display 30, the RAM 38, and the like. In addition, the mobile phone 10 in which the power saving mode can be set transitions to the power saving state when a specific time elapses without the key input operation being performed with the display 30 displaying high brightness. The RAM 38 stores two tables from which user setting values and power saving setting values are read. The time arbitrarily set by the user is stored in the user setting table of the RAM 38 as a user setting value. When the power saving mode is set in the mobile phone 10 and the display 30 is switched to the high luminance display, the processor 24 sets the user setting value as the specific time if the user setting value is shorter than the power saving setting value.

  For example, when paying attention to “display (BL lighting)” of each table, “5 seconds” is read as the user setting value, and “10 seconds” is read as the power saving setting value. The specific time is set to “10 seconds”.

  As a result, if the setting by the user can suppress the power consumption rather than the setting of the power saving mode, the setting by the user is given priority.

  In other embodiments, the user setting table and the power saving table may include ringing settings for incoming mail.

  In addition, the setting by the user may be given priority in the ringing setting at the time of incoming mail, the lamp setting, etc., as in the high-intensity display process.

  In addition, if the manner mode that prohibits the output of voice ringtones and feedback sounds can be set, the manner mode setting is given priority without outputting the feedback sound even if the key operation sound is set to “ON”. Is done.

  Further, the communication method of the mobile phone 10 is not limited to the CDMA method, and an LTE (Long Term Evolution) method, a W-CDMA method, a GSM method, a TDMA method, an FDMA method, a PHS method, or the like may be adopted. Furthermore, although an LCD monitor is used for the display 30, other display devices such as an organic EL panel may be used.

  Moreover, although the lithium ion battery was employ | adopted as the secondary battery 50, a lead acid battery, a nickel metal hydride battery, a sodium ion battery, a metal air battery, a zinc bromine battery, etc. may be sufficient. Further, instead of the secondary battery 50, a primary battery such as an alkaline battery or a fuel cell may be employed.

  Further, the shape of the mobile phone 10 is a slide type with two casings, but may be a slide type with three or more casings. Furthermore, the shape of the mobile phone 10 may be a uniaxial folding type, a biaxial folding type, a straight type, a revolver type, or the like.

  Furthermore, the present invention may be applied not only to the mobile phone 10 but also to a smartphone, a PDA (Personal Digital Assistant), and a notebook PC (including a netbook).

  The specific numerical values such as the time and the threshold value given in the present specification are merely examples, and can be appropriately changed according to the specifications of the product.

DESCRIPTION OF SYMBOLS 10 ... Mobile phone 12 ... Antenna 14 ... Wireless communication circuit 24 ... Processor 26 ... Key input device 30 ... Display 32 ... BL control circuit 34 ... Backlight 48 ... Power supply circuit 50 ... Secondary battery

Claims (3)

A mobile phone that can set a power saving mode that reduces power consumption, and transitions to a power saving state when a specific time elapses in a specific state,
In the power saving mode, a first storage unit that stores a time for shifting to the power saving state as a first set time;
A second storage unit that stores an arbitrarily set time as a second set time for transitioning to the power saving state;
When the power saving mode is set and in the specific state, the determination unit determines whether the second setting time is shorter than the first setting time, and the determination unit determines the second setting time A mobile phone comprising a setting unit that sets the second set time as the specific time when it is determined that the set time is shorter than the first set time. A power saving mode that suppresses power consumption can be set. When a specific time elapses in a specific state, the power saving mode is entered. In the power saving mode, a time for changing to the power saving state is stored as a first setting time. Mobile phone processor,
A storage unit that stores an arbitrarily set time as a second set time for transitioning to the power saving state,
When the power saving mode is set and in the specific state, the determination unit determines whether the second setting time is shorter than the first setting time, and the determination unit determines the second setting time A power saving control program for causing a function to function as a setting unit that sets the second set time as the specific time when it is determined that the set time is shorter than the first set time. A power saving mode that suppresses power consumption can be set. When a specific time elapses in a specific state, the power saving mode is entered. In the power saving mode, a time for changing to the power saving state is stored as a first setting time. A power saving control method for a mobile phone,
An arbitrarily set time is stored as a second set time for transitioning to the power saving state,
When the power saving mode is set and the specific state is set, it is determined whether the second set time is shorter than the first set time, and the second set time is shorter than the first set time. A power saving control method for setting the second set time as the specific time when it is determined to be short.

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