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. 12, 1995
Filed:
Apr. 29, 1993
Applicant:
Inventors:
Guy F Verrier, Boca Raton, FL (US);
John M Zetts, Falls Church, VA (US);
Assignee:
International Business Machines, Inc., Armonk, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08C / ;
U.S. Cl.
CPC ...
345179 ; 178 19 ;
Abstract
An architecture is disclosed for communication of remote devices to a digitizing display. The architecture includes a contact sensing erasure mechanism and a position sensing erasure mechanism whose outputs are multiplexed for transmission from the stylus to an antenna located proximate to the digitizing display. The digitizing display will erase text or graphics data in a pen-based computer system in response to the stylus. A calibration method provides improved accuracy for the erasure function.