Solid state imager device having A/D converter

Details Solid state imager device having A/D converter Solid state imager device having A/D converter

1996-04-29

1998-02-10

Faile, Andrew

Television

Camera, system and detail

Solid-state image sensor

348257, H04N 314

Patent

active

057174598

ABSTRACT:
A solid state imager device such as a CCD imager device includes a timing generator which generates and supplies a clamping circuit with, a clamping pulse for clamping a first signal, corresponding to one pixel, from a through region of a CCD shift register, and a clamping pulse for clamping a second signal, corresponding to one pixel, from an optical black region of a sensor array. Specifically, the clamping pulse for clamping the first signal clamps a signal, corresponding to a first pixel, from the through region, and the clamping pulse for clamping the second signal clamps a signal, corresponding to a second or following pixel, from the optical black region. An output signal from the clamping circuit is supplied to an A/D converter which converts the supplied signal at such timing as not to sample the signal, corresponding to the first pixel, from the through region.

REFERENCES:
patent: 4455574 (1984-06-01), Hashimoto et al.
patent: 5153929 (1992-10-01), Itagaki
patent: 5296946 (1994-03-01), Kadowaki et al.

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