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:
Nov. 05, 1996
Filed:
Aug. 02, 1993
Applicant:
Inventors:
Donald F Gray, Phoenix, AZ (US);
Michael M Malkin, Scottsdale, AZ (US);
Assignee:
Kurta Corporation, , US;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08C / ; G09G / ; H04L / ;
U.S. Cl.
CPC ...
178 18 ; 178 19 ; 178 20 ; 178 87 ; 345173 ; 345179 ; 345180 ;
Abstract
A pressure sensitive pointing device or pen is described for use with an electronic tablet that determines the position of the pointing device on the surface of the tablet. The pointing device incorporates a variable reluctance circuit responsive to the force exerted on the pen point for modulating a radiating frequency, emanating from the pen, in proportion to the force.