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:
Jan. 25, 1977
Filed:
Jul. 21, 1975
Applicant:
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358168 ; 358169 ;
Abstract
A television receiver having a picture control circuit permitting simultaneous control of both brightness and contrast and means for controlling contrast alone without varying brightness so that the character of the reproduced picture may be controlled to suit a viewer's taste.
Fijisawa, Seiji. (1977). Brightness and contrast control for television receiver (U.S. Patent No. 4005262). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4005262
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile