Imaging signal processing methods and apparatus

Details Imaging signal processing methods and apparatus Imaging signal processing methods and apparatus

2008-06-18

2011-12-06

Collins, Darryl J (Department: 2873)

Television

Camera, system and detail

Solid-state image sensor

C348S294000, C348S302000

Reexamination Certificate

active

08072525

ABSTRACT:
Methods and apparatus are provided for performing multiple correlated double sampling (CDS) operations on an imaging pixel, and in some cases on an array of imaging pixels, during a single integration cycle of the pixel(s). The multiple CDS operations may produce multiple CDS values, which may be processed in combination to produce a resulting value substantially free of various types of noise. The CDS operations may be performed using a CDS circuit including a single-ended charge amplifier having an input capacitor. The charge amplifier may also include a variable capacitance providing a variable gain. The variable capacitance may be provided by a feedback capacitor.

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