Lighting system using GPS receiver

Details Lighting system using GPS receiver Lighting system using GPS receiver

2005-03-15

2010-02-09

Owens, Douglas W (Department: 2821)

Electric lamp and discharge devices: systems

Time-controlled

C315S361000, C340S468000, C340S815450, C701S213000

Reexamination Certificate

active

07659676

ABSTRACT:
A lighting system using a GPS receiver is provided. The lighting system includes: a GPS receiver for calculating sunrise time and sunset time from an inputted GPS signal and outputting an on/off signal and a satellite detection indicating signal according to the calculated sunrise time and sunset time; a security light configured to be turned on/off in response to the on/off signal; and an LED configured to be turned on/off in response to the satellite detection indicating signal. Accordingly, the GPS receiver itself receives GPS satellite signal, sunrise time and sunset time are automatically calculated from the received position information and reception information by using a baseband processor, and a security light is turned on/off at the calculated sunrise and sunset time, so that the number of components is greatly reduced.

REFERENCES:
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patent: 6510381 (2003-01-01), Grounds et al.
patent: 6553311 (2003-04-01), Ahearn et al.
patent: 6992991 (2006-01-01), Duske et al.
patent: 2008/0278100 (2008-11-01), Hwang
patent: 4297881 (1992-10-01), None
patent: WO 9831201 (1998-07-01), None

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