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Control of activation of location-related sensors of a mobile device

  • US 9,167,529 B2
  • Filed: 06/01/2013
  • Issued: 10/20/2015
  • Est. Priority Date: 06/03/2012
  • Status: Active Grant
First Claim
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1. A mobile device, comprising:

  • one or more lowest-power location-related sensors;

    one or more medium-power location-related sensors; and

    a controller operative to;

    activate at least one of the lowest-power location-related sensors of a low power state of the mobile device at power up of the mobile device, wherein the lowest-power location-related sensors include motion sensors;

    activate medium-power location-related sensors of a medium-power state of the mobile device upon detection of a change in a wireless connection to the mobile device;

    activate at least one highest-power location-related sensors of a high-power state of the mobile device upon detection of sensed signals of the lowest-power sensors and signals of the medium-power sensors exceeding predetermined thresholds, and deactivate the highest-power location-related sensors upon detection of motion of the mobile device of less than a threshold;

    wherein at least one of the medium-power location-related sensors or high-power location-related sensors include a lowest-power location-related sensor operating with a sampling rate that is greater than a threshold;

    whereinthe mobile device is operable to transition to the low-power state from the medium-power state, and operable to transition to the low-power state from the high-power state, and operable to transition to the medium-power state from both the low-power state and the high power state.

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