The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 25, 1992
Filed:
Aug. 12, 1991
NEC Corporation, Tokyo, JP;
Abstract
A differential input circuit includes a first bias generating circuit, a second bias generating circuit, a differential circuit, a first capacitor, and a second capacitor. The first bias generating circuit applies an input signal and a bias voltage divided by first dividing resistors to a first source follower FET and outputs a resultant value through first level shift diodes. The second bias generating circuit applies a bias voltage divided by second dividing resistors to a second source follower FET and outputs a resultant value through second level shift diodes. The differential circuit includes first and second switching FETs respectively having gates connected to outputs of the first and second bias generating circuits. The first capacitor connects the output of the first switching FET to a gate electrode of the second switching FET. The second capacitor connects an output terminal of the second bias generating circuit to a gate electrode of the second source follower FET.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile