Television – Camera – system and detail – Solid-state image sensor
Reexamination Certificate
2007-10-23
2007-10-23
Ometz, David (Department: 2622)
Television
Camera, system and detail
Solid-state image sensor
C348S308000
Reexamination Certificate
active
10343427
ABSTRACT:
An amount of charges consonant with the intensity of the light entering photodiodes is generated, and the level of the charges is determined by a charge level determination circuit. Based on this determined charge level, a capacitance setting circuit sets a capacitance of an integrating capacitor unit in an integrating circuit. Thereafter, in the integrating circuit, the charges generated by the photodiodes are integrated in the integrating capacitor unit, and a voltage having a value consonant with the amount of the integrated charges is output. When background light is strong and the overall intensity of incident light is high, a comparatively large capacitance is set for the variable capacitor unit of the integrating circuit, and the intensity of the incident light is detected without saturation. When background light is weak and the overall intensity of incident light is low, a comparatively small capacitance is set for the variable capacitor unit of the integrating circuit, and the intensity of the incident light is detected at high sensitivity, regardless of the surrounding conditions.
REFERENCES:
patent: 5892540 (1999-04-01), Kozlowski et al.
patent: 6128039 (2000-10-01), Chen et al.
patent: 6593562 (2003-07-01), Parrish et al.
patent: 6700110 (2004-03-01), Mizuno et al.
patent: 6956607 (2005-10-01), Mizuno et al.
patent: 63-205527 (1988-08-01), None
patent: 2-288709 (1990-11-01), None
patent: 03-10126 (1991-01-01), None
patent: 5-291955 (1993-11-01), None
patent: 9-51476 (1997-02-01), None
patent: 10-153425 (1998-06-01), None
patent: 2000-32342 (2000-01-01), None
Steven L. Garverick, et al., “A 32-Channel Charge Readout IC Programmable, Nonlinear Quantization of Multichannel Detector Data”, IEEE Journal of Solid-State Circuits, vol. 30, No. 5, pp. 533-541, May 1995.
Fujita Kazuki
Mizuno Seiichiro
Yamamoto Hiroo
Hamamatsu Photonics K.K.
Nguyen Luong T.
Ometz David
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