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. 02, 1986
Filed:
Jan. 07, 1985
Applicant:
Inventors:
Assignee:
Wacom Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08C / ;
U.S. Cl.
CPC ...
178 18 ;
Abstract
A coordinate input device with display comprises a tablet having a plurality of X-direction magnetostrictive transmission mediums arranged in parallel, a plurality of Y-direction magnetostrictive transmission mediums arranged in parallel and superposed on the X-direction transmission mediums substantially orthogonally thereto, and first and second coils arranged over substantial regions of the magnetostrictive transmission mediums. A magnetic pen is used to produce just enough magnetism for causing a local increase of the electro-mechanical coupling coefficient in the magnetostrictive transmission mediums in the tablet.