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Systems and methods for controlling a satellite navigation receiver

  • US 8,234,061 B2
  • Filed: 09/29/2009
  • Issued: 07/31/2012
  • Est. Priority Date: 10/21/2008
  • Status: Active Grant
First Claim
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1. A satellite navigation receiver operating in a plurality of operation states, the satellite navigation receiver comprising:

  • a processing unit configured to;

    locate the satellite navigation receiver based on a plurality of satellite signals,sample a velocity of the satellite navigation receiver for a predetermined number of times during a predetermined time period to provide a plurality of sampled velocity values,calculate an average velocity of the satellite navigation receiver based on the sampled velocity values, andset a plurality of time durations of the plurality of operation states, respectively, based on the average velocity of the satellite navigation receiver; and

    a power management interface operatively coupled to the processing unit and configured to switch the satellite navigation receiver among the plurality of operation states according to the plurality of time durations.

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