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:
May. 17, 1988
Filed:
Feb. 09, 1987
Applicant:
Inventors:
Haruyuki Koizumi, Kyoto, JP;
Shinichi Hashizume, Kasatsu, JP;
Koichi Omae, Kyoto, JP;
Sanji Nakabayashi, Mishima, JP;
Assignee:
Omron Tateisi Electronics Co., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08C / ;
U.S. Cl.
CPC ...
178 18 ;
Abstract
A coordinate input sheet for use in a coordinate digitizer apparatus has at least one auxiliary electrode disposed between and in parallel with main electrodes provided at opposite ends of a resistance surface. The auxiliary electrode is used to either measure a voltage at its respective position which can be used to correct point contact data generated by said sheet or to apply a voltage to said sheet so that point data generated by said sheet is correct.