Adaptive optical sensor

Television – Camera – system and detail – Solid-state image sensor


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348298, 348308, H04N 314




An integrated image processing system includes an array of cells arranged in rows and columns. Each cell corresponds to a pixel of an image and includes a photosensitive element for detecting the luminous intensity of its respective pixel and for generating a value. A first switch controls the transfer of the value from a respective photosensitive element to the corresponding capacitor, which stores the value. A second switch couples each of the cells in parallel to a common line. A control circuit receives the values from each cell on the common line and generates a signal for regulating the switching time interval of the first switch.

patent: 4544848 (1985-10-01), Kawasaki et al.
patent: 4775798 (1988-10-01), Munier
patent: 5019702 (1991-05-01), Ohzu et al.
patent: 5572257 (1996-11-01), Conrads et al.
patent: 5576762 (1996-11-01), Udagawa
patent: 5698844 (1997-12-01), Shinohara et al.
patent: 5708471 (1998-01-01), Okumura
patent: 5781233 (1998-07-01), Liang et al.
Patent Abstracts of Japan, vol. 007, No. 040 (E-159), Feb. 17, 1983, and JP-a-57 190469 (Nippon Victor KK), Nov. 24, 1982.


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