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. 31, 1999
Filed:
Oct. 28, 1997
Applicant:
Inventor:
Toshiya Yamada, Shizuoka, JP;
Assignee:
Yamaha Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10H / ;
U.S. Cl.
CPC ...
84731 ; 84275 ; 84309 ;
Abstract
A silent violin has a body structure, strings stretched over the body, a bridge held in contact with the strings and having two leg portions supported by the body structure and a piezoelectric converting unit inserted between the bridge and the body, although the piezoelectric converting unit is located under the two leg portions, the piezoelectric converting unit converts vibrations propagated from the strings through one of the two leg portions to an electric signal, and an electric system faithfully produces electric sounds to be expected from the electric signal without any interference between the vibrations propagated through the two leg portions.