Power control system and method for the same

Details Power control system and method for the same Power control system and method for the same

2009-03-13

2011-11-22

Nguyen, Kim T (Department: 3661)

Data processing: vehicles, navigation, and relative location

Navigation

Reexamination Certificate

active

08065075

ABSTRACT:
A power control system and method receives and filters a valid GPS signal received by a navigation device and outputs a corresponding performance parameter for the GPS signal, and upon determining that a power management signal is a power-off management signal, determines whether the performance parameter exceeds a predetermined first threshold. Alternatively, if the power management signal is not a power-off management signal, the performance parameter is determined whether it is smaller than a predetermined second threshold value. A processing module is managed to send a GPS power control signal that controls power provided to a GPS module in the navigation device, thereby reducing power consumption of the navigation device.

REFERENCES:
patent: 6812887 (2004-11-01), Syrjarinne et al.
patent: 7847726 (2010-12-01), Jia et al.

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