Double sampling active pixel sensor with double sampling...

Details Double sampling active pixel sensor with double sampling... Double sampling active pixel sensor with double sampling...

2007-10-09

2007-10-09

Vu, Ngoc-Yen (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S244000

Reexamination Certificate

active

10202623

ABSTRACT:
A system which operates to determine temperature of an image sensor using the same signal chain that is used to detect the image sensor actual outputs. A correlated double sampling circuit is used to obtain the image outputs. That's same correlated double sampling circuit is used to receive two different inputs from the temperature circuit, and to subtract one from the other. The temperature output can be perceived, for example, once each frame.

REFERENCES:
patent: 5877715 (1999-03-01), Gowda et al.
patent: 6630955 (2003-10-01), Takada
patent: 6642776 (2003-11-01), Micheloni et al.

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