Power-saving position tracking device

Details Power-saving position tracking device Power-saving position tracking device

2011-03-01

2011-03-01

Tarcza, Thomas H (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a satellite

C342S357290, C342S357310

Reexamination Certificate

active

07898471

ABSTRACT:
A power-saving position tracking device includes a central processing unit; a short-distance wireless communication unit, for establishing a wireless connection with a short-distance wireless transceiver to perform a position tracking; a GPS receiving unit, for receiving a satellite signal for performing a position tracking and outputting position information; a mobile communication unit, for transmitting the position information to a remote control center. If a signal intensity of a wireless connection between the power-saving position tracking device and the short-distance wireless transceiver is greater than a threshold, the GPS receiving unit and the mobile communication unit will enter into a power saving mode; on the other hand, if the wireless connection signal intensity is smaller than the threshold, the short-distance wireless communication unit will enter into the power saving mode to achieve the power-saving effect.

REFERENCES:
patent: 2006/0063560 (2006-03-01), Herle
patent: 2009/0111485 (2009-04-01), Kitani
patent: 2009/0207042 (2009-08-01), Park et al.

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