Synchronously-controlled light string

Details Synchronously-controlled light string Synchronously-controlled light string

1992-03-16

1993-03-09

Dzierzynski, Paul M.

Electric lamp and discharge devices: systems

Discharge device and/or rectifier in the supply circuit

Plural load device systems

315210, 315250, 315312, 315313, 315318, 315320, 315324, H05B 3700, H05B 3900

Patent

active

051928957

ABSTRACT:
A synchronously-controlled light string includes a plurality of light string units, each of which has a plug in one end and a socket in the other end, thereby allowing the light string units to be coupled together. Each light string unit has a control circuit and a plurality of lights. When the control circuit receives an AC power source signal, the signal is rectified, and frequency divided to obtain a train of clock pulses which are sent to a shifting circuit and a pattern selection circuit to control a driving circuit to drive the lights with a predetermined frequency.

REFERENCES:
patent: 3803452 (1974-04-01), Goldschmied
patent: 4223248 (1980-09-01), Tong
patent: 4253045 (1981-02-01), Weber
patent: 4417182 (1983-11-01), Weber
patent: 4890000 (1989-12-01), Chou
patent: 5027037 (1991-06-01), Wei

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