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:
Dec. 27, 1988
Filed:
Feb. 12, 1982
Applicant:
Inventor:
Henry G Matthews, Cobalt, CT (US);
Assignee:
Summagraphics Corporation, Fairfield, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340731 ; 340709 ; 3403 / ;
Abstract
Information presented on a visual display is varied in content and size through the use of a single operator-manipulated input device. The foregoing is accomplished through the use of a novel command signal generator which includes a pivotally mounted rotatable shaft, high-resistance switches operatively associated with the shaft and logic circuitry responsive to command signals provided by the switches and by shaft rotation sensors for generating display control signals.