Method of driving solid-state image sensing device

Details Method of driving solid-state image sensing device Method of driving solid-state image sensing device

1994-02-14

1996-03-19

Razavi, Michael T.

Television

Camera, system and detail

Solid-state image sensor

348304, 348316, 348318, 2502081, H04N 5335

Patent

active

055006752

ABSTRACT:
In the method of driving a solid-state image sensing device, for each vertical blanking (VBL), the signal charges of a first pixel group composed of photosensitive pixels of odd ordinal numbers counted in the vertical direction of the photosensitive region and the signal charges of a second pixel group composed of photosensitive pixels of even ordinal numbers counted in the same way are reversed in the vertical transfer direction, so that the signal charges of the first and second pixel groups can be outputted from the same charge detecting circuit for each field. Further, unnecessary accumulated charges in the pixel groups in the photosensitive region are cleared off in response to an accumulated charge clear pulse. Further, it is also possible to equalize the photoelectrically converted output voltages of the two charge detecting circuits to each other, by equalizing the charge accumulation periods of the first and second pixel groups to each other on the basis of a third FS pulse (accumulated charge clear pulse).

REFERENCES:
patent: 5025318 (1991-06-01), Nagura
patent: 5057926 (1991-10-01), Watanabe
patent: 5148013 (1992-09-01), Yamada
patent: 5194724 (1993-03-01), Sekine

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