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:
Oct. 15, 1985
Filed:
Jun. 20, 1983
Applicant:
Inventors:
Roy F Baker, Franklin Park, IL (US);
Frank G Banach, Oak Lawn, IL (US);
Assignee:
Zenith Electronics Corporation, Glenview, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
3581951 ;
Abstract
An AFC circuit for a television receiver capable of unambiguous operation with substantially offset signal frequencies has a response characteristic defined by a positive portion intermediate a pair of substantially equally sized negative portions. The circuit includes a multiplier with an unbalanced coupling between the limiter and the discriminator which has a single adjustable tuned circuit nominally tuned to 45.75 MHz.
Baker, Roy. (1985). Television afc system usable with offset carrier frequencies (U.S. Patent No. 4547805). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4547805
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile