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Management of data before zero volt suspend in computer power management

  • US 6,618,812 B2
  • Filed: 03/20/2001
  • Issued: 09/09/2003
  • Est. Priority Date: 12/16/1994
  • Status: Expired due to Fees
First Claim
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1. A method of power management in a computing device having volatile RAM and non-volatile memory, a power supply and a plurality of input devices, comprising:

  • providing power to said volatile RAM, non-volatile memory and said input devices;

    monitoring said input devices for a predetermined period of inactivity;

    saving data stored in said volatile RAM to said non-volatile memory in response to said predetermined period of inactivity elapsing, including the step of reclaiming system memory areas of said volatile RAM by writing zeros to said system memory areas prior to storing said data in said non-volatile memory;

    thereafter, removing power to said volatile RAM and said non-volatile memory; and

    monitoring said input devices for subsequent activity.

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