US 7,465,056 B2 · Light emitting diode lamp with synchronous pins and synchronous light emitting diode lamp string

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.

Claims3

Dependent claims

A light emitting diode lamp having an anode pin, a cathode pin, a data input pin and a data output pin, which is characterized in:

said light emitting diode lamp is composed of at least a light emitting diode and a control circuit without a clock source, said data input pin and data output pin electrically connect with said control circuit;
wherein said control circuit obtains data and clock signals in response to the status of said data input pin and controls illumination of said light emitting diode based on the data from said data input pin;
wherein said control circuit outputs the data from said data input pin to the data output pin.

Dependencies are inferred from the claim text.

Facts

Application

11/117,302Filed 29 Apr 2005

Priority

TW 93139976 A22 Dec 2004

Published

US 2006/0133078 A122 Jun 2006

Granted

16 Dec 2008

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

H05B 45/20
Circuit arrangements for operating light-emitting diodes [LED]: controlling the colour of the light
H05B 45/30
Circuit arrangements for operating light-emitting diodes [LED]: driver circuits
F21S 6/001
Lighting devices intended to be free-standing: candle-shaped
F21Y 2115/10
Light-generating elements of semiconductor light sources: light-emitting diodes [LED]

Light emitting diode lamp with synchronous pins and synchronous light emitting diode lamp string

Life of this patent

Light emitting diode lamp with synchronous pins and synchronous light emitting diode lamp string

Life of this patent

Abstract

Claims3