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.

Date of Patent:
May. 24, 1983

Filed:

Nov. 16, 1981
Applicant:
Inventors:

Takizo Shioda, Tokyo, JP;

Norio Ito, Kanagawa, JP;

Katsumi Kobayashi, Tokyo, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ; H04N / ;
U.S. Cl.
CPC ...
358237 ; 358180 ; 358214 ;
Abstract

An image display apparatus having a cathode ray tube with a deflection device, a projection screen and a projection lens projecting an image from the picture screen of the cathode ray tube onto the projection screen, is further provided with a deflection width control device which changes a dimension particularly the width of the cathode ray tube raster, in response to a change in the type of a television signal supplied to the tube.


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