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:
Sep. 02, 1986
Filed:
Nov. 01, 1983
Applicant:
Inventors:
Masayoshi Yagyuu, Kokubunji, JP;
Hiroyuki Ito, Kokubunji, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ; H03K / ; H03K / ;
U.S. Cl.
CPC ...
307455 ; 307475 ; 307362 ;
Abstract
A high-speed logic circuit including a logic part formed of a differential transistor circuit and a feedback part for feeding the in-phase output of the differential transistor circuit back to the out-of-phase input terminal of the differential transistor circuit is disclosed in which a constant current source circuit is provided in the feedback part to keep constant a current flowing through the feedback part.