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:
Apr. 09, 1991
Filed:
Jun. 13, 1990
Applicant:
Inventors:
Hideki Usuki, Kanagawa, JP;
Shumpei Kohri, Kanagawa, JP;
Masatoshi Yano, Kanagawa, JP;
Hiroshi Ishida, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
307594 ; 307585 ; 307597 ; 307605 ;
Abstract
A delay circuit for integrated circuits includes a current mirror circuit having at least a pair of MIS transistors, a constant current source and a capacitance. The delay time is determined by the charging time of the capacitance connected to one of the MIS transistors. A stable delay time is obtained regardless of manufacturing variations and the space required for the circuit is reduced.