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:
Nov. 22, 1983
Filed:
Aug. 31, 1981
Hitachi, Ltd., Tokyo, JP;
Hitachi Microcomputer Engineering, Ltd., Tokyo, JP;
Abstract
An output of a noise canceller which cancels a noise component from within a composite video signal is applied to an input of an AGC detector which generates an AGC voltage for controlling the gain of a video intermediate frequency amplifier. A circuit controlled by a pulse provided from a vertical oscillator, thereby to control the noise cancelling operation of the noise canceller associated with the operation of the AGC detector into an inoperative state in a vertical flyback time is arranged, so that the lockout phenomenon under various receiving conditions of the television receiver can be prevented.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile