Television – Camera – system and detail – Combined image signal generator and general image signal...
Reexamination Certificate
2004-08-25
2008-09-02
Pert, Evan (Department: 2826)
Television
Camera, system and detail
Combined image signal generator and general image signal...
C348S308000
Reexamination Certificate
active
07420600
ABSTRACT:
The invention relates to a technique removing a dark voltage noise signal occurring at the time of light shielding of a photoelectric conversion device, simplifying the system configuration such that the cost and occupying area is reduced, and suppressing variation among a plurality of buffer amplifiers. In order to obtain such a photoelectric conversion device, a photoelectric conversion element1includes: a first accumulating unit6that accumulates an output signal outcoming from the photoelectric conversion element during a first period; a second accumulating unit7that accumulates an output signal outcoming from the photoelectric conversion element during a second period different from the first period; first and second switch units4and5used for selectively introducing the output signal from the photoelectric conversion element1to the first or second accumulating unit; and an output unit that outputs output signals from the first and second accumulating units6and7by inversing the polarity of the first accumulating unit6.
REFERENCES:
patent: 5162912 (1992-11-01), Ueno et al.
patent: 5831675 (1998-11-01), Ueno
patent: 6483541 (2002-11-01), Yonemoto et al.
patent: 08-255027 (1996-10-01), None
patent: 09-205588 (1997-08-01), None
patent: 10-145681 (1998-05-01), None
patent: 2002-232786 (2002-08-01), None
JPO Machine Translation of JP 10-145681 cited on the IDS filed Feb. 27, 2008, 1998, 12 pages.
Yamada Nobuyuki
Yamamoto Kenji
Morgan & Lewis & Bockius, LLP
Pert Evan
Rohm & Co., Ltd.
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