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:
Dec. 06, 1983

Filed:

Jul. 03, 1980
Applicant:
Inventor:

Seiji Hetsugi, Kawasaki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340707 ; 340717 ; 340751 ; 340731 ;
Abstract

A cathode-ray tube display device including first and second cathode-ray tube displays. The first cathode-ray tube displays an entire screen full of characters and symbols or the like in dot matrix form. One of the characters from the first cathode-ray tube can be transferred and displayed upon the second cathode-ray tube with the use of a light pen applied to the screen of the first cathode-ray tube display. The selected character can then be edited or corrected on the second cathode-ray tube display and then transferred back to the first cathode-ray tube display.


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