Method and apparatus for detecting the presence of...

Details Method and apparatus for detecting the presence of... Method and apparatus for detecting the presence of...

2006-03-07

2006-03-07

Tran, Thai (Department: 2612)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S362000, C382S270000, C382S274000, C396S155000

Reexamination Certificate

active

07009642

ABSTRACT:
A method and apparatus for detecting the presence of artificial illumination in a scene powered by alternating current by sampling the light in a scene at a periodic rate.

REFERENCES:
patent: 4079388 (1978-03-01), Takahama et al.
patent: 5053871 (1991-10-01), Ogawa et al.
patent: 5495313 (1996-02-01), Kai
patent: 5515132 (1996-05-01), Iwasaki
patent: 5701526 (1997-12-01), Iwasaki
patent: 5905529 (1999-05-01), Inuiya et al.
patent: 6501518 (2002-12-01), Smith et al.

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