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:
Nov. 30, 1993
Filed:
Feb. 26, 1992
Hiroshi Asazawa, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A differential circuit comprises a differential stage responsive to input voltage levels in an ECL range for producing an output signal at an output node, a setting stage associated with the differential stage and responsive to a set signal in a CMOS range for setting the output node to a predetermined level, wherein a level-shift element is coupled between a bipolar transistor responsive to the set signal and the common emitter node of bipolar transistors responsive to the input voltage levels so that each bipolar transistor is prevented from destruction due to excess reverse bias voltage applied to the base node and the emitter node.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile