Electric lamp and discharge devices: systems – Current and/or voltage regulation
Reexamination Certificate
2011-07-26
2011-07-26
Choi, Jacob Y (Department: 2821)
Electric lamp and discharge devices: systems
Current and/or voltage regulation
C315S294000, C315S295000, C315S18500S, C315S121000
Reexamination Certificate
active
07986107
ABSTRACT:
An electrical circuit is disclosed for driving color strings that have at least one lamp, preferably a light emitting diode (LED). The color strings can be different lengths. In some embodiments, a switch is coupled in parallel to one of the LED strings to shunt power away from the LED string to a power supply or to one or more other LED strings. In some embodiments, a current injector is configured to remove current from or inject current into a node adjacent to an LED string. Methods are disclosed for producing a desired light output utilizing color strings that may be of dissimilar length and that may contain light emitting diodes of different colors.
REFERENCES:
patent: 6153980 (2000-11-01), Marshall et al.
patent: 7317403 (2008-01-01), Grootes et al.
patent: 7468723 (2008-12-01), Collins
patent: 7649326 (2010-01-01), Johnson et al.
patent: 7663598 (2010-02-01), Kim
patent: 7688002 (2010-03-01), Ashdown et al.
patent: 2007/0257623 (2007-11-01), Johnson et al.
patent: 2008/0122376 (2008-05-01), Lys
patent: 2008/0191642 (2008-08-01), Slot et al.
patent: 2008/0303452 (2008-12-01), Van Erp
patent: 2010/0194274 (2010-08-01), Hoogzaad
patent: 2001051638 (2001-02-01), None
patent: 2004235046 (2004-08-01), None
patent: 2005310997 (2005-11-01), None
patent: WO-2006/107199 (2006-10-01), None
patent: WO2008/139365 (2008-11-01), None
International Search Report PCT/US2009/001254 dated May 28, 2009 pp. 1-3.
Written Opinion PCT/US2009/001254 dated May 28, 2009 pp. 1-3.
Ferrier Herman
Weaver Matthew
Alemu Ephrem
Choi Jacob Y
Lumenetix, Inc.
Perkins Coie LLP
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