Multistage active infrared sensor

Details Multistage active infrared sensor Multistage active infrared sensor

2005-11-15

2005-11-15

Gagliardi, Albert (Department: 2878)

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

C250S221000, C250S221000, C340S556000

Reexamination Certificate

active

06965109

ABSTRACT:
In a multistage active infrared sensor, light emitters11A,11B,11C emit infrared signals which contain distinct channel information. These light emitters11A,11B,11C emit the infrared signals at different timings from each other. The sensor judges whether the infrared signals received by light receivers12A,12B,12C contain channel information of opposite light emitters11A,11B,11C. The sensor cancels any infrared signal which does not contain the channel information of the opposite light emitters11A,11B,11C.

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