JP5067300B2 - Mobile terminal device - Google Patents

Description

  The present invention relates to a mobile terminal device such as a mobile phone having a plurality of auxiliary functions.

  In mobile terminal devices such as mobile phones, many multifunctional new models having new functions have been developed (see Patent Document 1). As today's multi-functionalization advances, it is required as a basic required performance that it can be used for a long time with one charge. For this reason, various power saving measures have been proposed and implemented (see Patent Documents 2, 3, and 4).

JP 2000-184036 A JP 2002-261920 A JP 2007-259671 A Japanese Patent Laid-Open No. 9-231194

  By the way, users who use mobile terminal devices include not only users who perform quick operations but also users who operate slowly, and mobile terminal devices such as mail functions, game functions, and network access functions are provided. There are various modes of use, such as users who frequently use various functions and users with low usage frequency where incoming calls are mainly used.

  On the other hand, the power saving function in the mobile terminal device is generally uniform, such as stopping the illumination of the display unit when there is no input at the set time. For this reason, there has been a problem that it has not been possible to meet the demand for further power consumption reduction while the power consumption has been increasing along with the increase in functionality and multifunction of the mobile terminal device as described above.

  The present invention has been made to solve the above-described problems, and it is possible to further reduce power consumption in a portable terminal device in which power consumption is increasing with the increase in functionality and functionality. The purpose is to.

  A portable terminal device according to the present invention includes a character input control unit that controls character input by key operation, a character input state detection unit that detects a state in which a character is input, and a character input to the character input state detection unit An operation state measuring means for measuring a character input operation state indicating an operation state when a state where an error is made is detected, and an operation clock of the character input control means according to the character input operation state measured by the operation state measurement means And at least power supply control means for controlling the voltage.

The operation state measuring means includes a character input state counting means for counting the state that the character input state detecting means determines to be a character input state, and an input state for storing the number of character input states counted by the character input state counting means. A power storage means, and a power input control means for calculating the number of character input states per unit time based on the number of character input states stored in the input state number storage means. as a character input operation state measurement means is measured by the character input state number per unit character input state frequency calculating means has calculated time, that controls the operating clock and the voltage of the character input control means.

  As described above, according to the present invention, since the operation clock and voltage of the character input control means are controlled by the character input operation state measured by the operation state measurement means, further power consumption of the portable terminal device is achieved. It is possible to obtain an excellent effect that it is possible to reduce the above. In addition, since the auxiliary function unit whose operation frequency measured by the auxiliary function unit operation monitoring unit is smaller than a preset value is switched off, the power consumption of the portable terminal device can be further reduced. An excellent effect is obtained.

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

[Embodiment 1]
First, Embodiment 1 of the present invention will be described with reference to FIG. FIG. 1 is a configuration diagram illustrating a partial configuration example of the mobile terminal device 101 according to the first embodiment of the present invention. In FIG. 1, parts necessary for explaining the present embodiment are shown, and well-known general parts constituting the mobile terminal device 101 are omitted.

  The mobile terminal device 101 according to the present embodiment includes a character input function unit 102 for realizing character input, a key input unit 103 for inputting characters and telephone numbers, and power supply to the character input control unit 121. And a power control unit 104 that performs control. In addition, the character input function unit 102 includes a character input control unit 121 that controls character input by key operation of the key input unit 103, a character input state detection unit 122 that detects a state in which character input is being performed, and a character input The state detection unit 122 includes an operation state measurement unit 123 that measures a character input operation state indicating an operation state when a state in which character input is being performed is detected.

  In the mobile terminal device 101 according to the present embodiment, the power supply control unit 104 controls the operation clock and voltage of the character input control unit 121 according to the character input operation state measured by the operation state measurement unit 123. .

  For example, the state where the character input detected by the character input state detection unit 122 is made is a state where an e-mail to be transmitted is created using the mobile terminal device 101. Further, for example, the state where characters are being input is a state where a schedule is input in order to use the schedule function provided in the mobile terminal device 101.

  In such a state where characters are being input, for example, the operation state measuring unit 123 measures the character input speed and the character input frequency by the user using the key input unit 103 as the character input operation state. Based on these speeds and frequencies, the power control unit 104 controls the operation clock and voltage of the character input control unit 121.

  For example, when the character input speed is slow or when the frequency is low, the clock supplied to the character input control unit 121 is lowered, and the supplied voltage is lowered. If character input is slow, reducing the operating clock does not cause a problem for the user. Even when the frequency is low, since there are many users who generally input characters slowly, it is considered that even if the operation clock is lowered, there is no problem for the user. Thus, if the operation clock is lowered, the voltage can be lowered, and if the voltage can be lowered, the power consumption can be reduced.

[Embodiment 2]
Next, a second embodiment of the present invention will be described with reference to FIGS. FIG. 2 is a configuration diagram illustrating a partial configuration example of the mobile terminal device according to the second embodiment of the present invention. In the present embodiment, a mobile phone will be described as an example of the mobile terminal device. FIG. 3 is a flowchart showing an operation example of the mobile terminal device (mobile phone) according to the second embodiment. In FIG. 2, parts necessary for explaining the present embodiment are shown, and well-known general parts constituting the mobile phone are omitted.

  The mobile phone according to the present embodiment controls each part, and implements a voice call and data communication by signals from a radio communication unit (not shown), an operation program for the control unit 204, created mail data, A memory 201 for storing received data, address data, etc., a key input unit (KEY) 202 for inputting a telephone number for making a call, inputting characters such as address book registration, and inputting various function settings; A display unit 203 is provided for displaying a telephone number at the time of outgoing / incoming calls, displaying various input contents linked with the key input unit 202, and displaying mail contents created / received by an electronic mail transmission / reception function.

Moreover, the voltage detection part 205 which monitors the voltage level of the battery (battery) 206 and notifies to the control part 204 when it falls below the set threshold value is provided. Also, FeliCa ( registered trademark; non-contact IC card) function unit 207, GPS (position detection by global positioning system) function unit 208, short-range wireless communication function unit (Bluetooth ; registered trademark ) 209, terrestrial digital television method reception function Peripheral (auxiliary function unit) such as a unit (GTV) 210. Moreover, a camera function part may be provided. In addition, the mobile phone in the present embodiment includes a character input function unit 211. Peripherals such as the FeliCa function unit 207, the GPS function unit 208, the short-range wireless communication function unit (Bluetooth) 209, and the digital television method reception function unit (GTV) 210 are activated by a command (command) from the control unit 204. Can be made. The arrows in the figure represent power supply lines.

  Next, the character input function unit 211 will be described. The character input function unit 211 first includes a character input control unit 221 that controls input of characters by key operation of the key input unit 202, a character input state detection unit 222 that detects a state in which character input is being performed, and a character input A character input state counting unit 223 that counts the state that the state detection unit 222 determines to be a character input state, and an input state number storage unit 224 that stores the number of character input states counted by the character input state counting unit 223 are provided.

  The character input function unit 211 includes a key operation speed measurement unit (operation state measurement unit) 225 that measures the speed of key operation in the character input state detected by the character input state detection unit 222, and a key operation speed measurement unit 225. An average of the key operation speeds stored in the input speed storage unit 226 is obtained from the number of character input states stored in the input speed storage unit 226 and the number of character input states stored in the input state count storage unit 224. An input speed calculation unit 227 and a power control unit 228 that controls power supply to the character input control unit 221 based on the character input speed calculated by the input speed calculation unit 227 are provided. Here, the key speed measurement unit 225 sets a value (character input speed) obtained by dividing the number of characters input in the character input state detected by the character input state detection unit 222 by the time of the character input state (character input speed). The power control unit 228 controls power supply to the character input control unit 221 based on the average value of the key operation speed (character input speed) obtained by the input speed calculation unit 227.

  Next, an operation example of the character input function unit 211 will be described with reference to the flowchart of FIG. First, when the character input state detection unit 222 detects a character input state in step S301, the key operation speed measurement unit 225 starts time measurement of the character input state in step S302. For example, when the e-mail function of a mobile phone is activated by a user's operation, input of characters such as the e-mail destination address, e-mail subject, and e-mail body text is entered by e-mail function activation. It becomes possible. The character input state detection unit 222 detects these states as character input states.

Thereafter, when the user terminates the e-mail function such as sending an e-mail, the character input state detection unit 222 enters a state where the character input state is not detected (end of character input state) (step S303). As described above, when the character input state detection unit 222 enters a state in which the character input state is not detected, the key operation speed measurement unit 225 ends the time measurement of the character input state (step S304), and the number of input characters is measured. The character input speed divided by the character input state time is obtained and stored in the input speed storage unit 226 (step S305).

  Next, the character input state counting unit 223 counts the character input state (step S306). For example, a series of character input operations in the e-mail function such as e-mail creation and transmission as described above are counted as one character input state. Next, the character input state counting unit 223 stores the counted result in the input state number storage unit 224 (step S307).

  Next, when the character input function unit 211 detects that the count result (number of times) of the character input state stored in the input state number storage unit 224 exceeds, for example, 10 times (step S308), the input speed The calculation unit 227 obtains an average value of the character input speeds stored in the input speed storage unit 226 (step S309). Thus, when the average value of the character input speed is obtained, the power control unit 228 controls the operation clock and power supply of the character input control unit 221 based on this value (step S310). The determination of the character input state count result may be performed by the key operation speed measurement unit 225, the input speed calculation unit 227, or may be performed by another functional unit (not shown). .

  Next, clock and power supply control by the power control unit 228 will be described. For example, the power supply control unit 228 compares the above-described average value of the character input speed with a preset speed reference value. If the average value of the character input speed is smaller than the speed reference value, the power input control unit 228 The operation clock is lowered, and the voltage supplied to the character input control unit 221 is lowered. As is well known, the arithmetic processing unit that constitutes the character input control unit 221 and the like operates in synchronization with the supplied operation clock. By slowing down the operation clock, it is necessary for the operation. The voltage can be reduced.

  When the character input speed is slow, it can be considered that the user's key operation speed is not so fast. In such a case, the operation clock initially set in the character input control unit 221 of the mobile phone is faster than necessary with respect to the key operation speed. For example, if there is only one character input in the eight clock rises of the operation clock, the seven clock rise periods in the eight clock rises are waiting for key operation input, which is wasted. ing. In such a case, even if the speed of the operation clock is reduced by half, the character input is performed once during the four clock rises of the operation clock, and the key operation can be detected without delay. It does not give the user the perception that the response is slow. Further, by reducing the operating clock to half the speed, the supplied voltage can be reduced, and as a result, the power consumption in the character input state can be reduced.

  On the other hand, the power control unit 228 compares the above-described average value of the character input speed with a preset speed reference value, and if the average value of the character input speed exceeds the speed reference value, the character input control unit The voltage supplied to 221 is increased to speed up the operation clock. Contrary to the above, when the character input speed is high, it can be considered that the key operation speed of the user is high. In such a case, with the operation clock initially set in the character input control unit 221 of the mobile phone, the key operation detection is in a state of being slower than the user's key operation speed. In such a case, by increasing the voltage supplied to the character input control unit 221 to speed up the operation clock, it becomes possible to obtain a key operation detection speed in accordance with the user's key operation speed, and more prompt characters. Input speed can be obtained. As a result, the mail creation operation (character input state) can be completed more quickly, and the operation time of the character input control unit 221 can be shortened. As a result, power consumption in the character input state can be reduced. Can be planned.

[Embodiment 3]
Next, Embodiment 3 of the present invention will be described with reference to FIGS. FIG. 4 is a configuration diagram showing a partial configuration example of the mobile terminal device according to Embodiment 3 of the present invention. In the present embodiment, a mobile phone will be described as an example of the mobile terminal device. FIG. 5 is a flowchart showing an operation example of the mobile terminal device (mobile phone) according to the third embodiment. Note that FIG. 4 shows parts necessary for explaining the present embodiment, and omits well-known general parts constituting the mobile phone.

  The mobile phone according to the present embodiment controls each part, and implements a voice call and data communication by signals from a radio communication unit (not shown), an operation program of the control unit 404, created mail data, A memory 401 for storing received data, address data, and the like; a key input unit (KEY) 402 for inputting a telephone number for making a call, inputting characters such as address book registration, and inputting various function settings; A display unit 403 is provided for displaying a telephone number at the time of outgoing / incoming calls, displaying various input contents linked with the key input unit 402, and displaying mail contents created / received by an electronic mail transmission / reception function.

  Moreover, the voltage detection part 405 which monitors the voltage level of the battery (battery) 406 and notifies to the control part 404 when it falls below the set threshold value is provided. Further, peripherals (auxiliary function units) such as a FeliCa function unit 407, a GPS function unit 408, a short-range wireless communication function unit (Bluetooth) 409, and a digital television method reception function unit (GTV) 410 are provided. In addition, the mobile phone in this embodiment includes a character input function unit 411. Peripherals such as the FeliCa function unit 407, the GPS function unit 408, the short-range wireless communication function unit (Bluetooth) 409, and the digital television method reception function unit (GTV) 410 are activated by a command (command) from the control unit 404. Can be made. The arrows in the figure represent power supply lines.

  Next, the character input function unit 411 will be described. First, the character input function unit 411 includes a character input control unit 421 that controls character input by key operation of the key input unit 402, a character input state detection unit 422 that detects a state in which character input is being performed, and a character input A character input state counting unit 423 that counts a state that the state detection unit 422 determines to be a character input state, an input state number storage unit 424 that stores the number of character input states counted by the character input state counting unit 423, and an input state The character input state frequency calculating unit 425 that calculates the number of character input states per unit time from the number of character input states stored in the number storage unit 424, and the number of character input states calculated by the character input state frequency calculating unit 425 are calculated. A power source control unit 426 that originally controls power supply to the character input control unit 421 is provided.

  Next, an operation example of the character input function unit 411 will be described with reference to the flowchart of FIG. First, in step S501, the character input state detection unit 422 detects a character input state, and then the character input state detection unit 422 enters a state where the character input state is not detected (end of the character input state) (step S502). Then, the character input state counting unit 423 stores the result of counting the character input state and counting the result in the input state number storage unit 424 (step S503).

  For example, when the e-mail function of a mobile phone is activated by a user's operation, input of characters such as the e-mail destination address, e-mail subject, and e-mail body text is entered by e-mail function activation. It becomes possible. The character input state detection unit 422 detects these states as character input states. The character input state counting unit 423 counts a series of character input operations in the electronic mail function such as creation and transmission of the electronic mail as one character input state.

  Next, in step S504, the character input state frequency calculation unit 425 calculates the number of character input states (number of input states) per unit time after elapse of a preset time (for example, one day). Next, when the calculated number of input states exceeds 12 (step S505), the power supply control unit 426 increases the operating voltage for the character input control unit 421 and increases the voltage to be supplied (step S506). If the calculated number of input states does not exceed 12 (step S505) and is 8 or less (step S507), the power supply control unit 426 supplies the operation clock for the character input control unit 421 with a delay. The voltage to be reduced is lowered (step S508).

  Next, control of the clock and power supply by the power control unit 426 will be described. For example, when the number of character input states per day is large, it can be considered that the key operation speed of the user is fast. On the other hand, when the number of character input states per day is small, it can be considered that the user's key operation speed is not so fast. First, if the number of character input states per day is 8 or less, it is determined that the user's key operation speed is slow, and the operation clock for the character input control unit 421 is slowed. Reduce the supplied voltage.

  When the key operation speed of the user is not so fast, the operation clock initially set in the character input control unit 421 of the mobile phone is faster than necessary with respect to the key operation speed. For example, if there is only one character input in the eight clock rises of the operation clock, the seven clock rise periods in the eight clock rises are waiting for key operation input, which is wasted. ing. In such a case, even if the speed of the operation clock is reduced by half, the character input is performed once during the four clock rises of the operation clock, and the key operation can be detected without delay. It does not give the user the perception that the response is slow. Further, by reducing the operating clock to half the speed, the supplied voltage can be reduced, and as a result, the power consumption in the character input state can be reduced.

  On the other hand, when the number of character input states per day exceeds 12, it is determined that the user's key operation speed is fast, the operation clock for the character input control unit 421 is increased, and the supplied voltage is increased. Contrary to the above, when the character input speed is high, it can be considered that the key operation speed of the user is high. In such a case, with the operation clock initially set in the character input control unit 421 of the mobile phone, the key operation detection is in a state slower than the user's key operation speed. In such a case, by increasing the voltage supplied to the character input control unit 421 to speed up the operation clock, it becomes possible to obtain a key operation detection speed in accordance with the user's key operation speed, and more prompt character Input speed can be obtained. As a result, the mail creation operation (character input state) can be completed more quickly, and the operation time of the character input control unit 421 can be shortened. As a result, power consumption in the character input state is reduced. Can be planned.

[Embodiment 4]
Next, a fourth embodiment of the present invention will be described with reference to FIGS. FIG. 6 is a configuration diagram illustrating a partial configuration example of the mobile terminal device according to the fourth embodiment of the present invention. In the present embodiment, a mobile phone will be described as an example of the mobile terminal device. FIG. 7 is a flowchart showing an operation example of the mobile terminal device (mobile phone) according to the fourth embodiment. Note that FIG. 6 shows parts necessary for explaining the present embodiment, and omits well-known general parts constituting the mobile phone.

  The mobile phone according to the present embodiment controls each part, and implements a voice call and data communication with a signal from a wireless communication unit (not shown), an operation program for the control unit 604, created mail data, A memory 601 for storing received data, address data, etc., a key input unit (KEY) 602 for inputting a telephone number when making a call, inputting characters such as address book registration, and setting input of various functions; A display unit 603 is provided for displaying a telephone number at the time of outgoing / incoming calls, displaying various input contents linked with the key input unit 602, and displaying mail contents created and received by an electronic mail transmission / reception function.

  Moreover, the voltage detection part 605 which monitors the voltage level of the battery (battery) 606 and notifies to the control part 604 when it falls below the set threshold value is provided. In addition, peripherals (auxiliary function units) such as a FeliCa function unit 607, a GPS function unit 608, a short-range wireless communication function unit (Bluetooth) 609, and a digital television method reception function unit (GTV) 610 are provided. Peripherals such as the FeliCa function unit 607, the GPS function unit 608, the short-range wireless communication function unit (Bluetooth) 609, and the digital television method reception function unit (GTV) 610 are activated by a command (command) from the control unit 604. Can be made. The arrows in the figure represent power supply lines.

  In the configuration described above, the mobile phone according to the fourth embodiment includes switches 621, 622, 623, and 624 for turning on and off the power supplied to each peripheral in the power supply line for each peripheral, and the control The unit 604 includes an auxiliary function unit operation monitoring unit 641 that measures the peripheral operation frequency, and auxiliary function unit switches 621 and 622 whose operation frequency measured by the auxiliary function unit operation monitoring unit 641 is smaller than a preset value. , 623, 624 are provided with a power supply control unit 642.

  Next, an operation example of the mobile phone (control unit 604) according to this embodiment will be described with reference to the flowchart of FIG. First, when power saving is set by a user's operation (step S701), the auxiliary function unit operation monitoring unit 641 includes a FeliCa function unit 607, a GPS function unit 608, a short-range wireless communication function unit (Bluetooth) 609, and a digital television. It is determined whether a peripheral such as the method reception function unit (GTV) 610 is used (step S702).

  For peripherals that are determined to be in use as determined by the auxiliary function unit operation monitoring unit 641, 0 is set as the number of unused days in step S703.

  On the other hand, for peripherals that are determined not to be used as determined by the auxiliary function unit operation monitoring unit 641, the auxiliary function unit operation monitoring unit 641 counts the number of unused days in step S704. When the number of unused days is equal to or greater than the preset number of days (for example, 10 days) in this count (step S705), the power supply control unit 642 corresponds to the target peripheral in the switches 621, 622, 623, 624. What is to be turned off is turned off (step S706).

  Thereafter, when the auxiliary function unit operation monitoring unit 641 detects an instruction to start using the peripheral whose power supply has been stopped (step S707), the power control unit 642 causes the switches 621, 622, 623, and 624 to The one corresponding to the peripheral to be turned on is turned on (step S708).

As described above, according to the mobile terminal device (mobile phone) in the present embodiment, power supply to peripherals that have not been used for a set number of days or more is stopped, thereby reducing power consumption. It becomes possible. For example, in recent mobile terminal devices, higher functions and multi-functions are progressing, but it is rare that all functions are always used. Some users frequently use each auxiliary function, and some users rarely use the auxiliary function. Even in such a case, the supply of power to the auxiliary function that is not used can be stopped by applying to the usage pattern of the user, so that power saving according to the usage pattern of the user is possible.

It is a block diagram which shows the example of a partial structure of the portable terminal device 101 in Embodiment 1 of this invention. It is a block diagram which shows the partial structural example of the portable terminal device in Embodiment 2 of this invention. It is a flowchart which shows the operation example of the portable terminal device (cellular phone) in Embodiment 2 of this invention. It is a block diagram which shows the example of a partial structure of the portable terminal device in Embodiment 3 of this invention. It is a flowchart which shows the operation example of the portable terminal device (cellular phone) in Embodiment 3 of this invention. It is a block diagram which shows the partial structural example of the portable terminal device in Embodiment 4 of this invention. It is a flowchart which shows the operation example of the portable terminal device (cellular phone) in Embodiment 4 of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 101 ... Portable terminal device, 102 ... Character input function part, 103 ... Key input part, 104 ... Power supply control part, 121 ... Character input control part, 122 ... Character input state detection part, 123 ... Operation state measurement part

Claims (1)

Character input control means for controlling character input by key operation;
A character input state detecting means for detecting a state where a character is being input;
An operation state measuring unit for measuring a character input operation state indicating an operation state when a state in which a character input is made is detected in the character input state detection unit;
And at least power supply control means for controlling the operation clock and voltage of the character input control means according to the character input operation state measured by the operation state measurement means ,
The operation state measuring means is
Character input state counting means for counting the state that the character input state detecting means determines to be a character input state;
Input state number storage means for storing the number of character input states counted by the character input state counting means;
Character input state frequency calculating means for calculating the number of character input states per unit time from the number of character input states stored in the input state number storage means
With
Power control means, as a character input operation state where the operation state measuring means has measured, by the character input state number per unit character input state frequency calculating means has calculated time, that controls the operating clock and the voltage of the character input control means The portable terminal device characterized by the above-mentioned.

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