Apparatus for determining temperature of an active pixel...

Active solid-state devices (e.g. – transistors – solid-state diode – Non-single crystal – or recrystallized – semiconductor... – Field effect device in non-single crystal – or...

Reexamination Certificate

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C257S059000, C257S222000, C257S225000, C257S232000, C257S233000, C257S234000, C257S257000, C257S291000, C257S292000, C257S293000, C257S294000, C257S431000, C257S432000, C257S443000, C257S467000

Reexamination Certificate

active

06974973

ABSTRACT:
An imager temperature sensor and a current correction apparatus are provided which use dark pixel measurements from an imager chip during operation together with a fabrication process constant as well as a chip dependent constant to calculate chip temperature. The chip temperature may be used to generate a current correction signal. The correction signal is used to tune a current on the imager chip to correct for temperature variations.

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