Exclusive-or and/or exclusive-nor circuits including output...

Electronic digital logic circuitry – Exclusive function – With field-effect transistor

Reexamination Certificate

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Details

C326S052000, C326S054000

Reexamination Certificate

active

11353527

ABSTRACT:
An exclusive-OR circuit may include a NAND gate configured to receive a plurality of input signals and a NOR gate configured to receive the plurality of input signals. The exclusive-OR circuit may also include a switch configured to couple an output signal of the NAND gate to an output node when an output signal of the NOR gate is “LOW”, and a pull-down circuit configured to pull down the output node when the output signal of the NOR gate is “HIGH”. An exclusive-NOR circuit may include a NAND gate configured to receive a plurality of input signals and a NOR gate configured to receive the plurality of input signals. The exclusive-NOR circuit may also include a switch configured to couple an output signal of the NOR gate to an output node when an output signal of the NAND gate is “HIGH”, and a pull-up circuit configured to pull up the output node when the output signal of the NAND gate is “LOW”.

REFERENCES:
patent: 4417161 (1983-11-01), Uya
patent: 56126326 (1981-10-01), None
patent: 63042222 (1988-02-01), None
patent: 05-152937 (1993-06-01), None
patent: 07-264049 (1995-10-01), None
patent: 100176326 (1998-11-01), None

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