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:
Mar. 25, 1986
Filed:
Jan. 25, 1983
Applicant:
Inventor:
Terence E Magee, Fulbourn, GB;
Assignee:
ITT Industries, Inc., New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
307451 ; 307579 ; 307585 ; 307290 ; 307270 ;
Abstract
A CMOS logic input circuit comprises two complementary transistor pairs, TR1 and TR2; TR3 and TR4 coupled in series between the supply rails. The gates of n-channel transistor TR4 and p-channel transistor TR1 are coupled to the positive and negative supply rails respectively. A switching function is performed by TR2 and TR3. The arrangement is such that the switching threshold is substantially independent of transistor characteristics.