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:
Oct. 12, 1993
Filed:
Aug. 13, 1991
Applicant:
Inventors:
Manfred Frank, Grosshadersdorf, DE;
Gunter Murmann, Pegnitz, DE;
Assignee:
The Cherry Corporation, Waukegan, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345157 ; 345168 ;
Abstract
A cursor control device moves from a precise zero rest position to define x-y coordinates for moving a cursor on a computer screen. When an actuating force is removed, the deflected control device is precisely returned to its zero rest position by operation of springs. The device provides relative cursor position data by reference to the zero rest position. The position data is converted to electrical signals which are utilized to position the cursor on the screen.