Reducing noise in introducing bias charge into charge transfer devices

A bias charge (commonly known as a "fat zero") is divided into a plurality, n, of equal parts. These equal parts are differentially delayed, and the results appearing parallel in time are summed to generate a bias charge with reduced noise. The reduced-noise bias charge is then applied to...

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Bibliographic Details
Main Author TOWER; JOHN R
Format Patent
LanguageEnglish
Published 10.09.1985
Edition3
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
INFORMATION STORAGE
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
STATIC STORES
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Summary:A bias charge (commonly known as a "fat zero") is divided into a plurality, n, of equal parts. These equal parts are differentially delayed, and the results appearing parallel in time are summed to generate a bias charge with reduced noise. The reduced-noise bias charge is then applied to an input of a charge transfer device - e.g., one of the charge coupled device (CCD) analog shift registers used in a CCD imager to transport charge packets descriptive of picture elements in an imager.
Bibliography:Application Number: US19830497403