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System and method for conserving battery energy in a wireless telephone with an integral global positioning system

  • US 6,141,570 A
  • Filed: 08/26/1998
  • Issued: 10/31/2000
  • Est. Priority Date: 08/26/1998
  • Status: Expired due to Term
First Claim
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1. A wireless telephone for use in a wireless communications network, said wireless telephone comprising:

  • a transceiver configured to establish and maintain communication with said wireless communications network;

    a global positioning system (GPS) receiver configured to acquire short term and long term information used in making position determinations; and

    a controller connected to the transceiver and the GPS receiver, said controller configured to periodically actuate the GPS receiver to acquire short term and long term information at selected time intervals and further configured to alter the time intervals of the periodic actuation of the GPS receiver and the acquisition of said short term and long term information responsive to the wireless telephone'"'"'s operating conditions.

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