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:
Jan. 03, 1984

Filed:

Dec. 15, 1980
Applicant:
Inventors:

Itsuro Hatao, Yokohama, JP;

Susumu Kobayashi, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340805 ; 340717 ; 340802 ; 340798 ;
Abstract

A control apparatus for driving a digital display device of either a dynamic or static type is responsive to data from a switch indicating whether a dynamic or static type display device is to be driven. When a dynamic display device is to be driven, corresponding instruction data are read out from a first memory included in the control apparatus whereas when a static display device is to be driven, corresponding instruction data are read out from a second memory. A processing circuit operates in accordance with selected instruction data, and thus (a) time shared output signals indicative of data to be displayed are generated through a plurality of output terminals for driving the dynamic display device, or (b) a single output indicative of data to be displayed is generated through one of the output terminals so as to drive the static display device. When driving the static display device, a clock pulse signal and load-command signal are also generated through some of the output terminals to periodically convert the output data fed through a single line into a plurality of driving signals for static display.


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