Apparatus using a battery
First Claim
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1. An electronic apparatus comprising:
- a receiving unit that receives a dischargeable capacity, a first predetermined voltage and a second predetermined voltage from a battery, wherein the electronic apparatus displays a low power warning on a display unit after a battery voltage reaches the first predetermined voltage, and the electronic apparatus carries out a low power operation after the battery voltage reaches the second predetermined voltage; and
a calculation unit that;
calculates a difference between the first predetermined voltage and the second predetermined voltage,determines, using the calculated difference between the first predetermined voltage and the second predetermined voltage, whether or not the first predetermined voltage is less than the second predetermined voltage,corrects the dischargeable capacity if the calculation unit has determined that the first predetermined voltage is less than the second predetermined voltage,calculates a first available time using the corrected dischargeable capacity if the calculation unit has determined that the first predetermined voltage is less than the second predetermined voltage, andcalculates a second available time using the dischargeable capacity if the calculation unit has determined that the first predetermined voltage is not less than the second predetermined voltage.
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Abstract
An apparatus using a battery includes a receiving unit, a determination unit and a calculation unit. The receiving unit receives a dischargeable capacity, a first voltage and a second voltage from the battery. The first voltage is used to display the end of an available time and the second voltage is used to carry out a low power operation. The determination unit determines whether the first voltage is less than the second voltage. The calculation unit corrects the dischargeable capacity and calculates the available time based on the corrected dischargeable capacity, if the determination unit determines that the first voltage is less than the second voltage.
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Citations
18 Claims
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1. An electronic apparatus comprising:
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a receiving unit that receives a dischargeable capacity, a first predetermined voltage and a second predetermined voltage from a battery, wherein the electronic apparatus displays a low power warning on a display unit after a battery voltage reaches the first predetermined voltage, and the electronic apparatus carries out a low power operation after the battery voltage reaches the second predetermined voltage; and a calculation unit that; calculates a difference between the first predetermined voltage and the second predetermined voltage, determines, using the calculated difference between the first predetermined voltage and the second predetermined voltage, whether or not the first predetermined voltage is less than the second predetermined voltage, corrects the dischargeable capacity if the calculation unit has determined that the first predetermined voltage is less than the second predetermined voltage, calculates a first available time using the corrected dischargeable capacity if the calculation unit has determined that the first predetermined voltage is less than the second predetermined voltage, and calculates a second available time using the dischargeable capacity if the calculation unit has determined that the first predetermined voltage is not less than the second predetermined voltage. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method comprising:
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causing a receiving unit of an electronic apparatus to receive a dischargeable capacity, a first predetermined voltage and a second predetermined voltage from a battery, wherein the electronic apparatus displays a low power warning on a display unit after a battery voltage reaches the first predetermined voltage, and the electronic apparatus carries out a low power operation after the battery voltage reaches the second predetermined voltage; causing a calculation unit of the electronic apparatus to calculate a difference between the first predetermined voltage and the second predetermined voltage; causing the calculation unit to determine, using the calculated difference between the first predetermined voltage and the second predetermined voltage, whether or not the first predetermined voltage is less than the second predetermined voltage; causing the calculation unit to correct the dischargeable capacity if the calculation unit has determined that the first predetermined voltage is less than the second predetermined voltage; causing the calculation unit to calculate a first available time using the corrected dischargeable capacity if the calculation unit has determined that the first predetermined voltage is less than the second predetermined voltage; and causing the calculation unit to calculate a second available time using the dischargeable capacity if the calculation unit has determined that the first predetermined voltage is not less than the second predetermined voltage. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A non-transitory computer-readable storage medium that stores a program for causing a computer to execute a method, the method comprising:
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causing a receiving unit of an electronic apparatus to receive a dischargeable capacity, a first predetermined voltage and a second predetermined voltage from a battery, wherein the electronic apparatus displays a low power warning on a display unit after a battery voltage reaches the first predetermined voltage, and the electronic apparatus carries out a low power operation after the battery voltage reaches the second predetermined voltage; causing a calculation unit of the electronic apparatus to calculate a difference between the first predetermined voltage and the second predetermined voltage; causing the calculation unit to determine, using the calculated difference between the first predetermined voltage and the second predetermined voltage, whether or not the first predetermined voltage is less than the second predetermined voltage; causing the calculation unit to correct the dischargeable capacity if the calculation unit has determined that the first predetermined voltage is less than the second predetermined voltage; causing the calculation unit to calculate a first available time using the corrected dischargeable capacity if the calculation unit has determined that the first predetermined voltage is less than the second predetermined voltage; and causing the calculation unit to calculate a second available time using the dischargeable capacity if the calculation unit has determined that the first predetermined voltage is not less than the second predetermined voltage. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification