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:
Jun. 09, 1998
Filed:
Dec. 14, 1995
Applicant:
Inventors:
Joseph D Rutledge, Mahopac, NY (US);
Edwin J Selker, New York, NY (US);
Assignee:
IBM Corporation, Armonk, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345159 ; 345145 ;
Abstract
Input force applied on a pointing device (51) having outputs (x,y) is related to the velocity of a cursor on a video screen according to a transfer function (FIG. 2) substantially described by a parabolic sigmoid function, thus resulting in adapting the force/velocity relationship to accommodate human perception and motor control limitations and task specific coordination problems.