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:
May. 03, 1977
Filed:
May. 26, 1976
Applicant:
Inventor:
Robert C Wheeler, Elba, NY (US);
Assignee:
GTE Sylvania Incorporated, Stamford, CT (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358165 ;
Abstract
A cathode ray tube raster in a television receiver is blanked for selected channels chosen to receive audio information by a bias circuit coupled to a video signal source connected to a cathode ray tube wherein the bias circuit provides a given bias potential to the cathode ray tube when a modulated picture carrier signal is detected and a different bias potential blanking the raster of the cathode ray tube when an unmodulated picture carrier signal is detected.