Analog-digital converter, solid-state image capturing...

Details Analog-digital converter, solid-state image capturing... Analog-digital converter, solid-state image capturing...

2008-05-16

2010-06-22

Barnie, Rexford N (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S156000

Reexamination Certificate

active

07741988

ABSTRACT:
An analog-digital converter is provided. The analog-digital converter includes: a comparing section for comparing an input signal voltage and an analog ramp voltage in which a voltage level gradually increases; and a latch section for storing a digital value of a digital ramp signal, in which a digital value of a voltage level gradually increases in synchronization with the analog ramp voltage when the analog ramp voltage or a voltage corresponding to the analog ramp voltage and the input signal voltage are equal. A voltage in which part or all of a plurality of analog ramp signals are added is used as the analog ramp voltage so that a gain is selectable.

REFERENCES:
patent: 5321404 (1994-06-01), Mallinson et al.
patent: 2006/0012507 (2006-01-01), Nitta et al.
patent: 2006-0052524 (2006-05-01), None
Office Action for Korean U.S. Appl. No. 10-2008-0045452 mailed Jan. 11, 2010.

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