LED signal light

• US 7,102,538 B2
• Filed: 04/05/2004
• Issued: 09/05/2006
• Est. Priority Date: 04/05/2004
• Status: Expired due to Fees

• Current Assignee: Kuo-Chin Chen
• Original Assignee: Kuo-Chin Chen
• Inventors: Chen, Kuo-Chin
• Primary Examiner(s): Philogene, Haissa
• Application Number:
  US10/816,906
• Publication Number:
  US 20050218834A1
• Time in Patent Office: 883 Days
• Field of Search: 315/312, 315/292, 315/291, 315/360, 315/362, 340/907, 340/910, 340/916, 340/925, 340/931, 340/924, 340/917, 701/117, 701/114, 701/115, 348/143, 348/149, 362/464, 362/466, 362/498, 362/545, 362/800
• US Class Current: 340/907
• CPC Class Codes: G08G 1/096 provided with indicators in which a mark progresses showing the time elapsed, e.g. of green phase

Abstract

The present invention provides an LED signal light device comprising a central processing unit, a control panel, an LED signal light, an output and input interface, a battery and an adapter. The central processing unit comprises a microprocessor, a memory and an interface circuit for controlling the operation of the whole device, and outputting a signal and receiving a command through the output and input interface. The control panel is a printed circuit board recorded a circuit therein. The LED signal light consists of plural LEDs, which are three coloring LEDs or color changing LEDs. The LEDs actively show a light display in a closed circuit and show various colors accompanying with various arrangements into abstract symbols for indicating various traffic situations. The device can be connected to an AC power supply of 110 V or 220 V, and the AC power is converted to DC power by an adapter, which also stabilizes the current provided to the whole device. The battery alternatively is provides power to the whole device with its storage power when the power source is ineffective.

Claims

1. An LED traffic signal light device, comprising:

a light display housing having a pair of concentric circular portions wherein an annular illuminating area is created between said pair of concentric circular portions;

a central processing unit consisting of a microprocessor, a memory and an interface circuit disposed within said light display housing and for controlling the operation of the whole device and outputting a signal and receiving a command via an output and input interface;

a control panel being a printed circuit board and recording a circuit and relevant parameters therein in advance;

an LED signal light consisting of plural LEDs which actively show a light display in a closed circuit and show various colors accompanying with various arrangements into abstract symbols for indicating various traffic situations;

said output and input interface provided for said central processing unit to output a signal or receive an external command signal through said interface; and

an adapter provided for converting an AC to a DC and stabilizing the current provided to the whole device, and

wherein the illuminated length of the annular area between said pair of concentric circles becomes shorter in a counter clockwise direction as the LED traffic signal device is changing from displaying one traffic signal to another.

2. The LED traffic signal light device according to claim 1, further comprising a battery for alternatively providing power to the whole device with its storage power when the AC power source is ineffective.

3. The LED traffic signal light device according to claim 1, wherein said device is connected to an AC power supply.

4. The LED traffic signal light device according to claim 1, wherein said LED is monochromatic LED selected from a group consisting of a red LED, a green LED and a yellow LED.

5. The LED traffic signal light device according to claim 1, wherein said LED is a color changing LED showing a light of a particular color under different particular voltages.

6. The LED signal light device according to claim 5, wherein said particular color is red, yellow or green.

7. The LED traffic signal light device according to claim 1, wherein said LED signal light shows a light display time via the LED lighting areas or numerals.

8. The LED traffic signal light device according to claim 1, wherein said LED signal light is displayed with a twinkled light.