Circuit and method for compensating for offset voltage

Details Circuit and method for compensating for offset voltage Circuit and method for compensating for offset voltage

2007-06-05

2007-06-05

Nguyen, Long (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

C327S307000, C327S513000

Reexamination Certificate

active

11119437

ABSTRACT:
A circuit for compensating for an offset voltage in a PhotoDetector Integrated Circuit (PDIC). The circuit includes a temperature detection unit, a current transfer unit and a current adjustment unit. The temperature detection unit generates a current that varies with variation in surrounding temperature. The current transfer unit transfers the generated current. The current adjustment unit adjusts the current transferred from the current transfer unit at a predetermined ratio and outputs the adjusted current.

REFERENCES:
patent: 4943737 (1990-07-01), Guo et al.
patent: 5774013 (1998-06-01), Groe
patent: 6118327 (2000-09-01), Watarai
patent: 6847254 (2005-01-01), Pai
patent: 2001/0028278 (2001-10-01), Ooishi
Patent Abstract of Japan for 11-068476 published on Mar. 9, 1999.

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