Television – Camera – system and detail – Combined image signal generator and general image signal...
Patent
1997-09-03
2000-12-26
Ho, Tuan
Television
Camera, system and detail
Combined image signal generator and general image signal...
327 90, H04N 5217
Patent
active
061667668
ABSTRACT:
A sensing circuit (202) uses correlated double sampling to sample a first pixel signal of a pixel stream (V.sub.PIXEL) at two different times to produce a dark signal and a light signal on two capacitors (310, 314). The dark and light signals are amplified in an amplifier (302) to produce a differential output signal (V.sub.PP -V.sub.PN) proportional to their difference. While the samples of the first pixel signal are being amplified, a second pixel signal is double-sampled to produce dark and light signals on two other capacitors (312, 316) for amplifying in the same amplifier. The period of the pixel signal is divided into time slots (T.sub.1 -T.sub.16) by a clocked oscillator (52). Programming signals (PROG1, PROG2) control the time slots in which sampling control pulses (V.sub.S1, V.sub.S2) are generated.
REFERENCES:
patent: 4574250 (1986-03-01), Senderowicz
patent: 4862121 (1989-08-01), Hochschild et al.
patent: 5039950 (1991-08-01), McDermott
patent: 5086344 (1992-02-01), D'Luna et al.
patent: 5159341 (1992-10-01), McCartney et al.
patent: 5323158 (1994-06-01), Ferguson, Jr.
patent: 5355396 (1994-10-01), Tai
patent: 5448606 (1995-09-01), Snelgrove
patent: 5574457 (1996-11-01), Garrity et al.
patent: 5736886 (1998-04-01), Mangelsdorf et al.
patent: 5892540 (1999-04-01), Kozlowski et al.
patent: 5963156 (1999-10-01), Lewicki et al.
patent: 6025875 (2000-02-01), Vu et al.
Beckwith Deborah J.
Hodel Michael W.
Moore Kendall G.
Shapiro Frederic B.
Ho Tuan
Motorola Inc.
Parker Lanny L.
Parsons Eugene A.
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