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:
Sep. 08, 1992
Filed:
Feb. 20, 1990
Tsutomu Fukatsu, Kanagawa, JP;
Tadayoshi Nakayama, Tokyo, JP;
Yoshihiro Nakatani, Kanagawa, JP;
Hisataka Hirose, Kanagawa, JP;
Chikara Sato, Kanagawa, JP;
Kenichi Nagasawa, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A video signal processing device is arranged to obtain a signal representing a difference between an input video signal and a signal read out from a memory to which either the input video signal or an input video signal is supplied, to supply the difference signal to a multiplier which uses a variable coefficient, and to add the output of the multiplier to the input video signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile