Offset cancel circuit and offset cancel system using the same

Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Amplitude control

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327362, H03L 500

Patent

active

057035164

ABSTRACT:
An offset cancel circuit includes two terminals, an output terminal and two intermediate nodes. When the offset cancel circuit is in a first state, the offset cancel circuit supplies a potential difference responsive to a difference in potential between the two terminals between the two intermediate nodes and supplies a potential responsive to both the potential difference supplied between the two intermediate nodes and a first potential to the output terminal. On the other hand, when the offset cancel circuit is in a second state, the offset cancel circuit supplies a potential difference responsive to the difference in potential between the two terminals between the two intermediate nodes and supplies a potential responsive to both the potential difference supplied between the two intermediate nodes and a second potential to the output terminal.

REFERENCES:
patent: 5047665 (1991-09-01), Burt
patent: 5327099 (1994-07-01), Fergus
patent: 5539779 (1996-07-01), Nagahori
Patent Abstracts of Japan, vol. 13, No. 379, 22 Aug. 1989, and JP-A-01 129832 (Citizen Watch Co. Ltd.) 23 May 1989, *Abstract*.

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