System and method for charging a control device from a...

Details System and method for charging a control device from a... System and method for charging a control device from a...

2006-11-27

2010-12-14

Le, Que T (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

C250S2140RC

Reexamination Certificate

active

07851737

ABSTRACT:
A lighting system control device charging system and method including a control device charged from a light source in a lighting system, including control photovoltaic cell28responsive to control light46from the light source and generating control charging power44; a capacitor storing the control charging power44and generating control supply power42; and a control microcontroller unit (MCU)/transceiver24powered by control supply power42and generating a communications signal40to the lighting system. The control microcontroller unit (MCU)/transceiver24monitors charge state of the capacitor and directs the lighting system to increase the control light46when the charge state is below a low charge setpoint.

REFERENCES:
patent: 6340864 (2002-01-01), Wacyk
patent: 7224131 (2007-05-01), Wilhelm
patent: 2005/0030177 (2005-02-01), Albsmeier et al.
patent: 0527347 (1993-02-01), None
patent: 58137365 (1983-08-01), None
patent: 06319170 (1994-11-01), None
patent: 2004336316 (2004-11-01), None
patent: WO0111926 (2001-02-01), None
patent: WO2004023849 (2004-03-01), None

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