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. 21, 1990
Filed:
Sep. 12, 1989
Applicant:
Inventor:
Clyde Smith, Lake Ronkonkoma, NY (US);
Assignee:
Television Corporation of America, Bohemia, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
329343 ; 329336 ;
Abstract
The invention utilizes a commercially available so-called 'quad-pack' of logic gates; i.e. four exclusive OR or exclusive NOR gates mounted in a package. With minimal use of additional components and minimal circuit coupling, a quad-pack of this type is used to produce a detector circuit with FM limiting and an approximate 90.degree. phase shift. The circuit can be used for detecting an FM modulated video signal.