PORTABLE ELECTRONIC DEVICE AND POWER CONTROL METHOD THEREOF
First Claim
1. A power control method for a portable electronic device, which has a processor for processing data, a non-volatile memory, a volatile memory for storing data, and a power supply unit for supplying power to the processor, the non-volatile memory and the volatile memory, the method comprising:
- storing data from the volatile memory into the non-volatile memory and stopping supplying power to the volatile memory when the power supply is less than a predetermined amount.
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Accused Products
Abstract
A power control method for a portable electronic device. The portable electronic device comprises a power supply unit and a volatile memory for storing data when the power supply unit supplies power thereto. First, the portable electronic device is set to enter a deep sleep mode. Then, data accessed from the volatile memory is transferred to a non-volatile memory. Finally, except for maintaining sufficient power to restore the device, the power supply unit is turned off.
21 Citations
19 Claims
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1. A power control method for a portable electronic device, which has a processor for processing data, a non-volatile memory, a volatile memory for storing data, and a power supply unit for supplying power to the processor, the non-volatile memory and the volatile memory, the method comprising:
storing data from the volatile memory into the non-volatile memory and stopping supplying power to the volatile memory when the power supply is less than a predetermined amount. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A power control method for a portable electronic device, which has a processor for processing data, a non-volatile memory, a volatile memory for storing data, and a power supply unit for supplying power to the processor, the non-volatile memory and the volatile memory, the method comprising:
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setting the portable electronic device to enter a normal sleep mode and retaining data in the volatile memory; and
storing data from the volatile memory into a non-volatile memory and stopping supplying power to the volatile memory when the portable electronic device stays in the normal sleep mode longer than a predetermined time. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A power control method for a portable electronic device, which has a processor for processing data, a non-volatile memory, a volatile memory for storing data, and a power supply unit for supplying power to the processor, the non-volatile memory and the volatile memory, the method comprising:
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storing data from the volatile memory into a non-volatile memory and stopping supplying power to the volatile memory when a first input signal has been received by the portable electronic device; and
maintaining only sufficient power to restore the device. - View Dependent Claims (16, 17, 18, 19)
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Specification