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, 1979
Filed:
Jun. 20, 1977
Applicant:
Inventor:
Motoi Iyeta, Hamakita, JP;
Assignee:
Nippon Gakki Seizo Kabushiki Kaisha, Hamamatsu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10H / ;
U.S. Cl.
CPC ...
84-118 ;
Abstract
An electronic musical instrument of the waveshape memory type comprises a holographic memory; including a plurality of hologram pictures each carrying information of dots which represent in binary coded notation sample values constituting musical waveshapes. Upon key depression, a coherent light beam irradiates the hologram pictures corresponding to the depressed key to reproduce dot images on a photo-electric converter. The converter delivers digital values of waveshape samples. The digital values are converted to analog values, thereby producing musical tones. A large amount of information can be stored in a small size memory.