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Wireless device battery conservation method and system

  • US 8,131,324 B2
  • Filed: 02/20/2009
  • Issued: 03/06/2012
  • Est. Priority Date: 11/04/2002
  • Status: Expired due to Fees
First Claim
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1. A mobile communications device comprising:

  • a mobile device battery power saving system havinga channel processor to provide a flag signal indicating each loss of a system channel; and

    a deep sleep controller to receive the flag signals and to count a number of times the system channel is lost within a timeout period, the deep sleep controller having a channel lost counter that is incremented each time the system channel is lost,the deep sleep controller further setting a channel lost start time value to a first current Global Positioning System time when the channel lost counter has a value of one and providing a system lost exit flag for entering a deep sleep mode when the number of times the system channel is lost within the timeout period is a predetermined number.

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