Electric lamp and discharge devices: systems – Current and/or voltage regulation – Plural load device regulation
Reexamination Certificate
2009-03-12
2011-10-25
Owens, Douglas W (Department: 2821)
Electric lamp and discharge devices: systems
Current and/or voltage regulation
Plural load device regulation
C315S299000, C315S307000
Reexamination Certificate
active
08044611
ABSTRACT:
An LED controller is provided that can easily control light-on testing of LEDs. A super voltage can be added to a signal including a low voltage and a high voltage. When the super voltage is not detected, LED driving circuit is operated in normal mode. When the super voltage is detected, LED driving circuit is operated in test mode. In test mode, the LEDs are turned on by a test signal directly input to LED driving circuit instead of by light emission data sent from shifter register to storage circuit. Accordingly, light-on testing of LEDs can be carried out easily.
REFERENCES:
patent: 4887074 (1989-12-01), Simon et al.
patent: 2003/0067281 (2003-04-01), Wilk et al.
patent: 2003/0085854 (2003-05-01), Tsuji
patent: 2006/0125425 (2006-06-01), Yen
patent: 2008/0007320 (2008-01-01), Lu
Brady III Wade J.
Chen Jianzi
Owens Douglas W
Patti John J.
Telecky , Jr. Frederick J.
LandOfFree
LED control device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with LED control device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and LED control device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4284822