Patent ID: 6914527
Filing Date: 2005-07-05
Classification: G08B

Abstract:
1. A infrared detector comprising: a light emitter having one or more infrared light emitting units and a circuit connecting said light emitter electronically with a CPU programmed encoder and a power amplifying controller, said CPU programmed encoder performing calculation and processing for producing a special coded signal, said special coded signal being emitted out with an infrared light beam of said infrared light emitting units to a light receiver positioned far away from said light emitter; said light receiver having one or more infrared light receiving units for receiving the infrared light beam with the specially coded signal coming from said infrared light emitting units of said light emitter, an electronic circuit connecting electronically said light receiver with a signal amplifier, a CPU programmed decoder for calculation and comparing, and an output controller, each infrared light receiving unit of said light receiver independently receiving the infrared light beam with the special coded signal to be simultaneously separately transmitted to said signal amplifier for amplifying and to said CPU programmed decoder for calculating and comparing and automatically controlled by said output controller.