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:
Oct. 22, 1991
Filed:
Jul. 14, 1989
Yasuo Mitsuhashi, Nagaokakyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A video signal processing apparatus which is adapted to a VTR (video tape recorder) and various other video players for processing a video signal so as to reduce noise. A video signal passed through a demodulator and a deemphasis circuit is input to a noise canceller circuit so as to remove most of the noise component thereof. The video signal is then provided with narrow and deep peaks at the respective rising transient portion and the breaking transient portion with bipolarity by an outline emphasizing circuit. Thus, smooth signal processing of the group delay characteristic is enabled in a wide frequency band, thereby producing a video signal having excellent sharpness and not including a strain such as overshoot or ringing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile