Synchronous light emitting diode lamp string

Details Synchronous light emitting diode lamp string Synchronous light emitting diode lamp string

2007-09-06

2009-08-18

Owens, Douglas W (Department: 2821)

Electric lamp and discharge devices: systems

Plural series connected load devices

Christmas lights

C315S18500S, C315S291000, C315S318000, C362S227000, C362S800000

Reexamination Certificate

active

07576497

ABSTRACT:
The present invention provides a light emitting diode lamp, which includes at least a light emitting diode and a control circuit. The light emitting diode lamp has an anode pin, a cathode pin, and a synchronous pin. The anode pin and the cathode pin receive a DC voltage, and the synchronous pin is connected to the control circuit. Moreover, the present invention provides a synchronous light emitting diode lamp string, which includes a plurality of light emitting diode lamps and at least a power adapter. Each light emitting diode lamp has a synchronous pin, and all synchronous pins are connected together. The control circuit can control the color changing of the light emitting diode based on a reference signal from the synchronous pin.

REFERENCES:
patent: 6344716 (2002-02-01), Gibboney, Jr.
patent: 6559605 (2003-05-01), Wu et al.
patent: 7045965 (2006-05-01), Li et al.
patent: 7331688 (2008-02-01), Peng
patent: 2007/0296345 (2007-12-01), Peng

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