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. 23, 1999
Filed:
Oct. 16, 1995
Applicant:
Inventors:
Depeng Bi, Wheeling, IL (US);
Jose T George, Bloomingdale, IL (US);
Assignee:
Packard Bell Nec, Sacramento, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345179 ; 345156 ; 178 18 ;
Abstract
A pen-based computer system device includes a digitizer and utilizes a passive stylus as an input device. The system emulates standard two-button mouse functions by generating data packets corresponding to the x-y coordinates of the stylus for each pen-down event. In order to prevent malfunction of the system, a plurality of packets are generated for each pen-up event to prevent maloperation of the system in the event a data packet for a pen-up event is lost or garbled.