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:
Aug. 22, 1989
Filed:
Jan. 20, 1987
Applicant:
Inventors:
Robert Adler, Northfield, IL (US);
Mark Fogelson, Wilmette, IL (US);
Sam Kaplan, Deerfield Beach, FL (US);
Assignee:
Zenith Electronics Corporation, Glenview, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340712 ; 333151 ; 3103 / ; 3103 / ;
Abstract
A system for recognizing touch positions along a predetermined coordinate axis includes a surface wave propagating substrate on which is disposed at least one surface wave transducer. An array of surface wave reflective elements directs the surface wave from the transducer. The reflective elements are composed of a frit material.