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. 16, 1999
Filed:
Apr. 22, 1997
Applicant:
Inventors:
Kazutaka Naka, Yokohama, JP;
Atsushi Maruyama, Yokohama, JP;
Hiroyuki Urata, Yokohama, JP;
Haruki Takata, Yokohama, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345127 ; 345132 ; 348580 ; 382300 ;
Abstract
A video signal processor which includes a circuit for converting the number of lines in a digitized video signal, a circuit for generating a display dot clock, a circuit for outputting analog pixel data subjected to a line number conversion and having a frequency different from that of the display dot clock, and a circuit for smoothing the analog pixel data; and in which a frequency fck of the display dot clock, an output frequency frk of the analog pixel data and a frequency fho of the horizontal synchronization signal satisfies an equation;