Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Reexamination Certificate
2007-11-20
2007-11-20
Pyo, Kevin (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
C250S2140AG, C250S2140AG, C250S2140DC, C348S300000, C330S110000
Reexamination Certificate
active
11088964
ABSTRACT:
The apparatus and method provide a readout technique and circuit for increasing or maintaining dynamic range of an image sensor. The readout technique and circuit process each pixel individually based on the magnitude of the readout signal. The circuit includes a gain amplifier amplifying the readout analog signal, a level detection circuit for determining the signal's magnitude, a second gain amplifier applying a gain based on the signal magnitude and an analog-to-digital converter digitizing the signal and a circuit for multiplying or dividing the signal. The method and circuit allow for a lower signal-to-noise ratio while increasing the dynamic range of the imager.
REFERENCES:
patent: 5614948 (1997-03-01), Hannah
patent: 6073848 (2000-06-01), Giebel
patent: 6140630 (2000-10-01), Rhodes
patent: 6204524 (2001-03-01), Rhodes
patent: 6310366 (2001-10-01), Rhodes et al.
patent: 6326652 (2001-12-01), Rhodes
patent: 6333205 (2001-12-01), Rhodes
patent: 6376868 (2002-04-01), Rhodes
patent: 6538593 (2003-03-01), Yang et al.
patent: 6734905 (2004-05-01), Fossum et al.
Moholt Jorgen
Olsen Espen A.
Dickstein & Shapiro LLP
Micro)n Technology, Inc.
Pyo Kevin
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