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. 30, 1976
Filed:
May. 21, 1975
Eric Fraser Morrison, Redwood City, CA (US);
Ampex Corporation, Redwood City, CA (US);
Abstract
An aperture correction system employing a tapped delay line includes an integral detection/gating circuit, whereby the combination generates an improved video detail signal by removing the objectionable noise and low amplitude components which are emphasized during the aperture correction process, while retaining the original shape of the high frequency video detail transitions as enhanced by the aperture correction process. The objectionable noise cancellation is provided by selectively gating the aperture correction signal via the detection/gating circuit in response to a selected gating waveform provided from the video detail signal itself. The detection/gating circuit may be selectively disabled to cause severe attenuation of the waveform at selected low and high frequencies outside the passband of the system.