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. 01, 1987
Filed:
Nov. 15, 1984
Applicant:
Inventors:
Assignee:
Dainippon Screen Mfg. Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358293 ; 358264 ; 358265 ; 358266 ; 358285 ; 329144 ; 331D / ;
Abstract
An image signal of the input and/or the output side is (are) multiplied by a shading compensation signal obtained from the output signal of a low-pass filter employed in a PLL circuit or a greating signal multiplying means.
Tomohisa, Kunio. (1987). Method and system for compensating for a shading phenomenon (U.S. Patent No. 4691241). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4691241
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile