Comparator circuit with offset cancellation

Details Comparator circuit with offset cancellation Comparator circuit with offset cancellation

2007-03-27

2007-03-27

Nguyen, Long (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

C327S307000, C327S057000

Reexamination Certificate

active

11103954

ABSTRACT:
A method of comparing signals includes obtaining first and second signals to be compared and first and second offset cancellation signals, combining the first offset cancellation signal with the first signal to be compared to form a first combined signal and combining the second offset cancellation signal with the second signal to be compared to form a second combined signal, comparing the combined first signal with the combined second signal, and producing an output indicating which of the combined first signal or the combined second signal is greater.

REFERENCES:
patent: 6320426 (2001-11-01), Shih
patent: 6597225 (2003-07-01), Gabara
patent: 2003/0058046 (2003-03-01), Moon
patent: 2006/0132191 (2006-06-01), Palmer

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