JP2011038999A - Portable terminal and method for controlling the portable terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable terminal or the like having a clock time displaying function, which is used as a timepiece even when a main battery of the portable terminal is exhausted, by enabling a circuit for a clock time function to operate independently. <P>SOLUTION: The portable terminal includes: a sub display part for displaying the clock time; a sub battery dedicated to the sub display part; the main battery of a portable terminal body; and a clock control part for controlling the clock time function and a display function of the sub display part. When the main battery is exhausted, the sub battery supplies an electric power to the clock control part, and the clock control part operates so as to be independent of a processor of the portable terminal body, thereby displaying the clock time on the sub display part. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a clock technology for a mobile phone having a clock display function.

  A cellular phone generally has a built-in clock function, and can be used as a clock by displaying the time on the LCD screen and as an alarm clock by sounding an alarm at a specified time.

  Mobile phones are always carried around, and there are many people who do not have a wristwatch and use a mobile phone instead of a watch. However, when the battery of the mobile phone is depleted, the power of the mobile phone is not turned on, so that there is a problem that the clock function cannot be used.

  As a related technique, a configuration is disclosed in which a countdown clock is provided and the power is turned on and notified as an alarm, but the processor of the main body is used (for example, see Patent Document 1).

  As a related technique, a technique related to clock accuracy is also disclosed (for example, see Patent Document 2).

JP 2008-217199 A JP 07-219673 A

  However, in the related art described above, since the processor of the main body is used, when the main battery of the apparatus main body is exhausted, there still remains a problem that it does not operate.

  An object of the present invention is to provide a portable terminal having a clock display function and a portable terminal capable of operating a clock function circuit independently and being usable as a clock even when the main battery of the portable terminal is exhausted. It aims at providing the control method of a machine.

  The portable terminal of the present invention includes a sub display unit that displays a clock, a sub battery dedicated to the sub display unit, a main battery of the main body of the mobile terminal, a clock function, and a clock that controls the display function of the sub display unit. And when the main battery is exhausted, the timepiece control unit is powered by the sub-battery, and the timepiece control unit operates independently of the processor of the mobile terminal main body so that the sub-display unit has a clock. Is displayed.

  The method for controlling a portable terminal of the present invention includes a sub display unit for displaying a clock, a sub battery dedicated to the sub display unit, a main battery of the main body of the portable terminal, a clock function, and display of the sub display unit. A control method of a portable terminal comprising a clock control unit for controlling functions, wherein the clock control unit is powered by the sub battery when the main battery is consumed, and the clock control unit is a portable terminal And a step of displaying a clock on the sub-display unit by operating independently of the processor of the machine body.

  According to the present invention, the clock function circuit can be operated independently, and by mounting a battery dedicated to the clock, it can be used as a clock even if the main battery of the portable terminal is exhausted.

It is a figure which shows the system configuration | structure which concerns on embodiment of this invention. It is the figure which showed the detail of the structure of the control part 3, the timepiece control part 8, the sub display part 9, and the power supply control part 10, the main battery 11, and the sub battery 12 which concern on embodiment of this invention. It is a state table | surface of this Embodiment. It is a flowchart which shows the state transition of the operation | movement of this Embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. A mobile phone as a mobile terminal in the present embodiment shown in FIG. 1 transmits and receives wireless data via a control unit 3 that controls the mobile phone and a signal line from the control unit 3 via the antenna unit 1. A wireless unit 2 for performing a program, a memory unit 5 for storing a program, a voice processing unit 6 for performing voice conversion, an operation unit 4 for a user to operate a mobile phone, a display unit 7 for displaying a screen, A sub display unit 9 that consumes less power than the display unit 7, a clock control unit 8 that controls the clock function and the display function of the sub display unit, a power control unit 10 that controls the power supply of the mobile phone and charges the battery, The main battery 11 supplies power to the mobile phone and the sub-battery 12 supplies power to the timepiece display unit.

  FIG. 2 shows details of the configuration of the control unit 3, the clock control unit 8, the sub display unit 9, and the power supply control unit 10, the main battery 11, and the sub battery 12.

  The power control unit 10 supplies power to each block excluding the clock control unit 8 and the sub display unit 9 and charges the main battery 11 and the sub battery 12. The sub battery 12 is charged by a power regulator 24 inside the power controller 10. The signal 22 is output from the power supply control unit 10 and performs independent operation control of the clock control unit 22. The diode 21 prevents a current from flowing from the timepiece control unit 22 to the control unit 3 when the main battery is exhausted, and the diode 23 prevents a current from flowing from the sub battery 12 to the power supply control unit 10. have.

  Next, the operation of the present embodiment will be described.

  FIG. 3 is a state table of the present embodiment, and FIG. 4 is a flowchart showing state transition of the operation of the present embodiment.

  In FIG. 3, the V1 voltage is the lowest voltage at which the power supply control unit 10 can operate, the V2 voltage is the lowest voltage at which the mobile phone can be turned on, and the relationship 0 <V1 <V2 is established. When the voltage is less than V1, the power control unit 10 does not supply power, and only the timepiece control unit 8 and the sub display unit 9 are powered by the sub battery 12. In the case of a voltage equal to or higher than V1, the power control unit 10 can supply power, and the sub battery 12 is also charged.

  In FIG. 4, the operation by the voltage of the main battery 11 will be described.

  First, when the voltage of the main battery 11 is V2 or higher (step 101: YES), the power regulator 24 built in the power control unit is turned on, and the sub battery 12 is charged (step 102).

  The control unit 3 can change the logic of the signal 22 by controlling the power supply control unit 10, and when the clock control unit 8 is set to the automatic clock display operation (step 103: YES), the logic of the signal 22 is set to L. When changed (step 106), the clock control unit 8 displays the clock on the sub display unit 9 (step 107).

  On the other hand, when display control is performed on the sub display unit 9 from the control unit 3 (step 103: NO), the logic of the signal 22 is also changed to H (step 104), and the clock control unit 8 is switched to the external control operation. (Step 105), the control unit 3 controls the timepiece control unit 8 to control the sub display unit 9.

  When the voltage of the main battery 11 is less than V2 (step 101: NO) and less than V1 (step 108: YES), the power supply control unit 10 is not operable, so the sub battery is not charged (step 109). In addition, the signal 22 becomes L logic by the resistance in the timepiece control unit (step 106). In this case, the clock control unit 8 performs an automatic clock display operation, and performs an operation of displaying a clock on the sub display unit 9 (step 107).

  When the voltage of the main battery 11 is less than V2 (step 101: NO) and when it is V1 or more (step 108: NO), the power supply control unit 10 is operable and the power supply regulator 24 built in the power supply control unit is turned on. The sub battery 12 is charged (step 110). The signal 22 is output as L logic as an initial value from the power supply control unit 10. In this case, the clock control unit 8 performs an automatic clock display operation (step 106), and performs an operation of displaying a clock on the sub display unit 9 (step 106). 107).

  Each of the above-described embodiments is a preferred embodiment of the present invention, and various modifications can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Antenna part 2 Radio | wireless part 3 AP control part 4 Operation part 5 Memory part 6 Audio | voice processing part 7 Display part 8 Clock control part 9 Sub display part 10 Power supply control part 11 Main battery 12 Sub battery

Claims (6)

  A sub-display unit for displaying a clock; a sub-battery dedicated to the sub-display unit; a main battery for a mobile terminal body; and a clock control unit for controlling a clock function and a display function of the sub-display unit. When the battery is depleted, the timepiece control unit is powered by the sub-battery, and the timepiece control unit operates independently of the processor of the mobile terminal body to display the timepiece on the sub-display unit. Mobile terminal. A power supply control unit that performs power supply to each block excluding the sub display unit and charge to the main battery and sub battery,
Perform independent operation control of the timepiece control unit by a signal output from the power supply control unit,
The V1 voltage is the lowest voltage at which the power supply control unit can operate, and the V2 voltage is the lowest voltage at which the mobile terminal body can be turned on. When the relationship 0 <V1 <V2 holds,
When the voltage of the main battery is less than V1, the power supply control unit cannot operate, and therefore the power supply is not performed and the sub battery is not charged, and the clock control unit and the sub display unit are operated by the sub battery. The clock signal is changed to L logic by a resistance in the clock control unit, and the clock control unit performs an automatic clock display operation and displays a clock on the sub display unit. The mobile terminal according to 1.   When the voltage of the main battery is less than V2 and greater than or equal to V1, the power control unit is operable, so that the power regulator built in the power control unit is turned on to charge the sub battery, and the signal is 3. The portable terminal according to claim 2, wherein an L logic is output as an initial value from a power supply control unit, and the clock control unit performs an automatic clock display operation and performs an operation of displaying a clock on the sub display unit. A portable terminal device comprising: a sub-display unit for displaying a clock; a sub-battery dedicated to the sub-display unit; a main battery of the portable terminal main body; and a clock control unit for controlling the clock function and the display function of the sub-display unit Control method,
When the main battery is exhausted, the timepiece control unit is powered by the sub battery;
And a step of displaying a clock on the sub display unit by the clock control unit operating independently of a processor of the mobile terminal body. The portable terminal includes a power control unit that supplies power to each block except the sub display unit and charges a main battery and a sub battery, and a signal output from the power control unit Independent operation control
The V1 voltage is the lowest voltage at which the power supply control unit can operate, and the V2 voltage is the lowest voltage at which the mobile terminal body can be turned on. When the relationship 0 <V1 <V2 holds,
When the voltage of the main battery is less than V1, the power supply control unit cannot operate, and therefore the power supply is not performed and the sub battery is not charged, and the clock control unit and the sub display unit are operated by the sub battery. The clock signal is changed to L logic by a resistance in the clock control unit, and the clock control unit performs an automatic clock display operation and displays a clock on the sub display unit. The method for controlling a portable terminal according to claim 1.   When the voltage of the main battery is less than V2 and greater than or equal to V1, the power control unit is operable, so that the power regulator built in the power control unit is turned on to charge the sub battery, and the signal is 3. The mobile terminal according to claim 2, wherein an L logic is output as an initial value from a power supply control unit, the clock control unit performs an automatic clock display operation, and performs an operation of displaying a clock on the sub display unit. Control method.

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