Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1990-05-11
1992-02-04
Britton, Howard W.
Facsimile and static presentation processing
Facsimile
Recording apparatus
35821326, 358167, 35821318, H04N 514, H04N 5335, H04N 5213
Patent
active
050863444
ABSTRACT:
A digital correlated double sampling circuit employs three registers and a single clock signal to sample the output of a charge transfer device. The first register samples the reset reference value on the falling edge of the master clock cycle while the remaining two registers sample on the rising edge. The second register samples the image level and the third register samples the output of the first register, thus effecting a delay of the reset reference level. The outputs of the second and third registers, that is, the image level and the reset reference level, are differenced to provide a noise-free image signal.
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Cook William A.
D'luna Lionel J.
Parulski Kenneth A.
Britton Howard W.
Eastman Kodak Company
Greening Wendy R.
Woods David M.
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