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:
Sep. 14, 1999
Filed:
May. 07, 1997
Applicant:
Inventor:
Kofi A Makinwa, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08C / ; G09G / ;
U.S. Cl.
CPC ...
345173 ; 345174 ; 178 1801 ; 178 1803 ; 178 1901 ; 178 1907 ;
Abstract
A graphic tablet includes a number of parallel electrodes whereto a series of patterns is presented in order to determine the position of a pen relative to the electrodes. As a result of such presentation, a series of code elements is formed on an electrode, which series can be picked up by the pen and is representative of the relevant electrode. When the patterns are suitably chosen, a short series of patterns suffices, so that the determination of the position requires less time.