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:
Mar. 20, 2007
Filed:
Jun. 29, 2000
Shigeki Kanbara, Hineji, JP;
Hiroshi Kaneda, Himeji, JP;
Shigeki Kanbara, Hineji, JP;
Hiroshi Kaneda, Himeji, JP;
Touch Panel Systems, Tokyo, JP;
Abstract
An object of the present invention is to provide a coordinate input device of touch-type capable of giving an electric signal to a transducer, even if a piezoelectric vibrator having electrodes on both surfaces thereof is employed. A device according to the present invention comprises: acoustic wave transducers (piezoelectric vibrators)and, each functioning for oscillating a bulk wave (a first wave) toward a top surfaceof a substrate; a planar wiringformed on a back surface of the substrateby the method such as transfer printing with conductive paste, for supplying said piezoelectric vibrator with electric power; a connecting devicefor connecting said planar wiring with an electrode of each of said acoustic wave transducersand; diffractive acoustic wave mode couplers, each functioning for converting said bulk wave into a surface acoustic wave (a second wave) and vice versa; and a means for detecting a scatter in the surface acoustic wave (the second wave) on the top surface of said substrate. Employing the combination of the planar wiring and the connecting device can resolve the problem of fragility associated with a cable wiring even in the piezoelectric vibrator having the electrodes on both surfaces thereof.