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:
Sep. 10, 1991
Filed:
Sep. 21, 1989
Hideo Suzuki, Hamamatsu, JP;
Jun Sugiyama, Hamamatsu, JP;
Yamaha Corporation, Hamamatsu, JP;
Abstract
The musical tone control apparatus generates a musical tone control signal in response to a motion at a certain part of a human body, preferably a bending motion at an articulation of a finger, wherein it includes a light emitting element, a photo-conductive member and a light receiving element. The light emitted from the light emitting element is transmitted through the photo-conductive member whose light transmission rate varies in response to the force applied thereon, so that the amount of the light transmitted through the photoconductive member is reduced. Such reduced amount of the transmitted light is received by the light receiving element. Based on the received light, the musical tone control signal is generated. Thus, by bending the photo-conductive member, the musical tone control signal can be varied. Preferably, the light emitting element is a photodiode, the photo-conductive member is an optical fiber, and the light receiving element is a phototransistor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile