Amplifier-return-driven CCD offset control for scanning arrays

Details Amplifier-return-driven CCD offset control for scanning arrays Amplifier-return-driven CCD offset control for scanning arrays

1991-09-30

1992-10-20

Goldstein, Herbert

Facsimile and static presentation processing

Facsimile

Recording apparatus

35821311, 35821326, H04N 5335

Patent

active

051575000

ABSTRACT:
In an image scanning device having a scanning array with a plurality of photosites detecting light from an image, the signals from the photosites being output from the scanning array through an amplifier in a sequence having reset pulses between the analog signals for each photosite, an apparatus maintains the reset pulses at a constant offset voltage. A peak follower holds the maximum value of voltage from each cycle of the sequence as the offset voltage, and outputs a constant voltage related to the offset voltage. An amplifier return driver accepts the constant voltage from the peak follower, and maintains the potential between the signal input to the amplifier and the return of the amplifier at a constant value.

REFERENCES:
patent: 4216503 (1980-08-01), Wiggins
patent: 4314281 (1982-02-01), Wiggins et al.
patent: 4602291 (1986-07-01), Temes
patent: 4639781 (1987-01-01), Rucci et al.
patent: 4660082 (1987-04-01), Tomohisa et al.
patent: 4698685 (1987-10-01), Beaverson
patent: 4907084 (1990-03-01), Nagafusa
patent: 4920428 (1980-04-01), Lin et al.

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