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. 27, 1990
Filed:
Jul. 01, 1987
Casio Computer, Tokyo, JP;
Abstract
A string member and a string trigger switch mechanism associated with the string member are arranged on an instrument main body. The string member is extended on the instrument main body at a given tension. When the string member is deviated against the tension upon a string displace operation and is then released from its state of tension, a string trigger switch starts a switching operation. While the string member is displaced from its state of rest, the string trigger switch does not start a switching operation. The string trigger switch outputs a tone generation start instruction signal based on the switching operation, and this signal causes a musical tone generating apparatus to start generation of a musical tone. When the string member is plucked while depressing a pitch designating section arranged on the instrument main body, a musical tone at a selectively designated pitch is generated. A plucking force or a plucking speed is detected by a touch response detecting section, and characteristics of a generated musical tone are controlled accordingly.