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. 25, 1993
Filed:
Sep. 05, 1991
Munenori Kobayashi, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
In multiplying an absolute value of a high frequency component of an input video signal and a gain selected from an aperture compensation gain and a noise cancel gain to carry out the aperture compensation and the noise cancel of the video signal, upper or lower bits of the absolute value are selected dependent on a control selected from the aperture compensation and the noise cancel in accordance with a level of the absolute value and a level of the input video signal. In carrying out the addition and the subtraction between the input video signal and a multiplied value, upper or lower bits of the multiplied value are selected in the same manner as in the above multiplying stage. As a result, a scale of a multiplier can be small.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile