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. 02, 1999
Filed:
Aug. 30, 1996
Applicant:
Inventors:
Kouji Kitou, Hiratsuka, JP;
Isao Yoshimi, Mobara, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ; H04N / ;
U.S. Cl.
CPC ...
345 12 ; 345 10 ; 348806 ;
Abstract
A display is disclosed for reducing a vertical moire phenomenon of the display with a simple circuit and without causing noises on an image plane. The display comprises a moire cancelling amplifier for flowing a vertical moire cancellation current at a frequency of 1/n of a vertical deflection frequency to a vertical deflection coil of the display, a frequency divider for generating the frequency of 1/n of the vertical deflection frequency, a vertical oscillator, and a vertical output circuit.