Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1984-11-30
1986-05-13
Rubinson, Gene Z.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358221, H04N 516
Patent
active
045890250
ABSTRACT:
In a television camera including an imager of the field-transfer type having A, B and C registers, an indication signal representative of dark current response accompanying the video signal is generated by comparing first and second signals representative of charge packets derived from the B and C registers, respectively. Specifically, the first signal is generated when the C register supplies signals supplied from the B register which includes substantially no photo-responsive components transferred from the A register. The second signal is generated when the C register supplies signals after the signal supplied from the B register have already been read out and while no new signals from the B register are being transferred into the C register and therefore represents absolute black.
REFERENCES:
patent: 4293877 (1981-10-01), Tsunekawa
patent: 4484223 (1984-11-01), Tsunekawa
patent: 4496982 (1985-01-01), Levine
patent: 4498105 (1985-02-01), Crawshaw
patent: 4525743 (1985-06-01), Wood, Jr.
Casne Thomas F.
Hacke Joseph F.
Monahan John F.
Edelman Lawrence C.
Emanuel Peter M.
RCA Corporation
Rubinson Gene Z.
Schroeder L. C.
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