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:
Dec. 30, 1980
Filed:
Mar. 08, 1979
Applicant:
Inventors:
Yutaka Ito, Tokyo, JP;
Kazuo Yajima, Tokyo, JP;
Yoshiteru Iwanaga, Tokyo, JP;
Hiroshi Takahashi, Tokyo, JP;
Masao Inaba, Tokyo, JP;
Assignees:
Tokyo Broadcasting System Inc., Tokyo, JP;
Nippon Electric Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ;
U.S. Cl.
CPC ...
358167 ; 358 36 ;
Abstract
A noise reduction system for improving the signal-to-noise ratio of a color television signal wherein a first television frame portion is recursively added to an immediately subsequent second television frame portion and the addition apparatus is controlled in response to the signal level difference between said first and second frame portions.