Power control methods for a portable electronic device

CAFC
  • US 7,716,505 B2
  • Filed: 06/14/2007
  • Issued: 05/11/2010
  • Est. Priority Date: 05/15/2003
  • Status: Active Grant
First Claim
Patent Images

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 battery 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 remaining power of the battery is less than a predetermined amount;

    maintaining only sufficient power to restore the device;

    determining whether the remaining power of the battery exceeds an amount required for a normal device operation; and

    when the remaining power of the battery exceed the amount, supplying power to the volatile memory and accessing data from the non-volatile memory to initiate the normal device operation; and

    determining whether a specific input signal has been received by the portable electronic device; and

    supplying power to the volatile memory upon receiving the specific input signal and accessing data from the non-volatile memory to initiate the normal device operation after initialization.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×