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System, method, and apparatus for minimizing power consumption in a portable device capable of receiving satellite navigational system signals

  • US 8,990,009 B2
  • Filed: 10/08/2013
  • Issued: 03/24/2015
  • Est. Priority Date: 07/24/2013
  • Status: Active Grant
First Claim
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1. A method for reducing power consumption of a portable device capable of receiving satellite navigational system signals, comprising:

  • retrieving information concerning one or more power usage characteristics corresponding to a current location of the portable device, where the power usage information is based on aggregate data from power usage data of one or more portable devices which receive satellite navigational system signals and which have traversed or are traversing the current location; and

    selecting a power saving mode from a plurality of power saving modes based at least on the retrieved power usage information from the aggregate data, where each of the plurality of power saving modes reduces power used by the portable device in at least one of receiving the satellite navigational system signals, processing the satellite navigational system signals, and computing the portable device'"'"'s position using the satellite navigational system signals.

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