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:
Nov. 15, 1988

Filed:

Feb. 03, 1987
Applicant:
Inventors:

Kuniaki Tabata, Tokyo, JP;

Tetsuo Machida, Sagamihara, JP;

Susumu Tsuhara, Sagamihara, JP;

Hidefumi Iwami, Yokohama, JP;

Yasuyuki Okada, Sagamihara, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340731 ; 340721 ; 340723 ; 340735 ;
Abstract

A display system which uses one display unit as if it were a plurality of display units to separately display whole information and partial information of document is disclosed. A plurality of display windows are defined on one display screen and a layout or a reduced image of the whole information is displayed in one of the window and information or image representing the information of a partial area of the whole information is displayed in other window. When one of the whole information and the partial area information is changed, the other information is also changed correspondingly, or a mark indicating a relation between the whole information and the partial area information is displayed in one of the window.


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