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:
Mar. 08, 1977
Filed:
Jul. 22, 1975
Applicant:
Inventors:
Yoshihiro Kawata, Tokyo, JA;
Kansei Iwata, Tokyo, JA;
Assignee:
Iwatsu Electric Co., Ltd., Tokyo, JA;
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
3401725 ;
Abstract
In display apparatus wherein a picture image corresponding to an information train given by an electronic computer is written in a storage tube by a random scanning system and then the picture image is repeatedly read out of the storage tube by a raster scanning system for displaying it on the screen of a cathode ray tube, means is provided to assure precise correspondence between the information train given by the computer and the position on the screen of the cathode ray tube designated by a light pen thus producing an interruption signal to the computer.