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. 16, 1977
Filed:
May. 07, 1976
Arthur H Klein, Oakfield, NY (US);
GTE Sylvania Incorporated, Stamford, CT (US);
Abstract
A noise suppression circuit for suppressing or cancelling noise pulses in a composite video signal coupled to television receiver synchronizing pulse separator and automatic gain control circuits is shown. Noise pulses in the video signal exceeding the amplitude of the synchronizing pulses are detected. The detected noise pulses are direct current coupled to the synchronizing pulse separator circuit and alternating current coupled to the automatic gain control circuit to inhibit hang-up of the automatic gain control system. The reference level for detecting the noise pulses is gated to inhibit detection of synchronizing pulses. The noise detecting reference level is also derived from the automatic gain control reference level.