Device and method with power efficient location notification function by periodically deactivating signal-based location service during travel until a wake trigger condition is met
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United States of America Patent
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Jul 14, 2015
Grant Date -
Jan 9, 2014
app pub date -
Jul 6, 2012
filing date -
Jul 6, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
Before a device enters a power saving mode, a location-aware application in the device may provide at least one wake trigger (and a trigger limit) to a low power monitoring module (LPMM). In power saving mode, the LPMM receives device locations from a location service module and may determine when the device location corresponds to the at least one wake trigger or trigger limit. In one embodiment, device location may only be provided to the LPMM based on a condition (e.g., timer expiration or reaching a displacement threshold as measured by sensors in the device). When device location corresponds to the trigger limit, the LPMM may notify the device (e.g., cause a transition to an active power mode) so that the location-aware application can redetermine the at least one wake trigger. The device location corresponding to the at least wake trigger may also cause the LPMM to notify the device.
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