System for conserving battery life in a battery operated device

  • US 8,266,465 B2
  • Filed: 03/07/2012
  • Issued: 09/11/2012
  • Est. Priority Date: 07/26/2000
  • Status: Active Grant
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First Claim
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1. A system for conserving battery life in a battery operated device comprising:

  • a receiver for receiving a repeated transmission that comprises a forward link packet (FLP), the FLP includes a data portion and a postamble;

    a transmitter configured to transmit a reverse link packet (RLP) in response to the FLP; and

    a microprocessor coupled to the receiver, the microprocessor periodically partially awakening to determine whether the repeated transmission is likely a FLP by examining the postamble, the microprocessor reads the data portion, if the repeated transmission is determined to likely be the FLP, to determine whether a response from the battery operated device is requested, and the microprocessor turns ON the transmitter only after the microprocessor determines from the data portion that the response is requested, wherein the transmitter stabilizes on an appropriate return link channel during a time period while the postamble is received by the receiver.

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