CCD area sensor with low signal level variation

Details CCD area sensor with low signal level variation CCD area sensor with low signal level variation

1985-12-30

1987-07-14

Rubinson, Gene Z.

Facsimile and static presentation processing

Facsimile

Recording apparatus

35821318, 358221, H04N 521, H04N 315

Patent

active

046806377

ABSTRACT:
The horizontal transfer register of a CCD image sensor has a final stage electrode which is independent of other electrodes of the horizontal transfer register. To eliminate flickering in a video picture, the operation of the horizontal transfer register is stopped for a given period of time during which field shifting is effected. The final stage electrode is driven by continuous pulses even when the operation of the horizontal transfer register is stopped during field shifting, thereby eliminating black level variations from an image sensor output.

REFERENCES:
patent: 4245252 (1981-01-01), Nagumo
patent: 4263623 (1981-04-01), Woo et al.
patent: 4340909 (1982-07-01), Yamada et al.
patent: 4360833 (1982-11-01), Kinoshita et al.
patent: 4498105 (1985-02-01), Crawshaw
patent: 4549215 (1985-10-01), Levine
patent: 4562475 (1985-12-01), Levine
Communication from West German Patent Office with English Transl. Article from IEEE vol. ED-31, No. 7, Jul. 1984, pp. 904-906, entitled "A New Configuration of CCD Imager with a very low smear level-FIT-CCD Imager".
English Translation of Japanese Patent Disclosure #56-119994.

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