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. 18, 1999
Filed:
Oct. 28, 1997
Applicant:
Inventor:
Toshiya Yamada, Shizuoka, JP;
Assignee:
Yamaha Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G10H / ;
U.S. Cl.
CPC ...
84630 ; 84626 ; 84662 ; 84737 ;
Abstract
A silent violin converts vibrations of strings to an electric signal, and the electric signal is supplied to two delay circuits and, thereafter, two multipliers so as to produce a left sound signal and a right sound signal different in delay time and magnitude; when a headphone produces stereophonic sounds from the left/right sound signals, the player feels the source of stereophonic sounds to be at a certain point on the silent violin same as an acoustic violin.