Image sensor and offset-able reference voltage generator...

Details Image sensor and offset-able reference voltage generator... Image sensor and offset-able reference voltage generator...

2004-12-29

2008-09-23

Vu, Ngoc-Yen T. (Department: 2622)

Television

Camera, system and detail

Solid-state image sensor

C348S310000, C250S208100

Reexamination Certificate

active

07428015

ABSTRACT:
An image sensor and offset-able reference voltage generator thereof are provided. The image sensor comprises a plurality of pixels, an offset-able reference voltage generator and a pixel sampling circuit. The pixel senses light from an image and generate an image signal. The offset-able reference voltage generator provides a reference voltage having a voltage offset. The pixel sampling circuit is coupled to the pixels and the offset-able reference voltage generator to sample the image signal and generate a pixel signal according to the reference voltage. The voltage offset of the reference voltage is able to compensate for the offset voltage in the process of generating the pixel signals.

REFERENCES:
patent: 6677996 (2004-01-01), Chung et al.
patent: 2003/0133627 (2003-07-01), Brehmer et al.

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