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:
Nov. 21, 1989
Filed:
Jan. 23, 1989
Applicant:
Inventors:
Yoshio Sugimori, Tokyo, JP;
Yousai Araki, Tokyo, JP;
Tadao Kurosaki, Tokyo, JP;
Joji Urano, Tokyo, JP;
Assignee:
Nippon Television Network Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ; H04N / ;
U.S. Cl.
CPC ...
358167 ; 358166 ; 358 37 ;
Abstract
A amplitude characteristics of TV vertical frequency signal is improved by operating amplitudes of luminance signal obtained from a horizontal scan in a field and luminance signals obtained from a preceding and a subsequent horizontal scans in the same field and those luminance signals obtained in a preceding field, simultaneously.