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. 26, 1980
Filed:
Nov. 21, 1978
Applicant:
Inventors:
Assignee:
U.S. Philips Corporation, New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358197 ; 358 / ;
Abstract
An effective control of the degree of suppression in a sound suppression filter in a television receiver is obtained when the required control signal is derived from the product of the amplitudes of the sound intercarrier signal and the chrominance sub-carrier signal, this product being in practice a measure of the disturbing difference frequency component between the chrominance sub-carrier signal and the sound intercarrier signal.