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:
Apr. 11, 1978
Filed:
Sep. 23, 1975
Masanobu Chibana, Hamamatsu, JA;
Abstract
The electronic musical instrument according to the invention is capable of controlling each level of harmonics constituting a musical tone individually and independently from each other and thereby producing a musical tone which is a close simulation of a natural musical tone. In order to produce change in the level of each harmonic with the lapse of time separately and independently, information respectively representing a peak level of attack, attack time from start of generation of a tone to the peak level, a sustain level and decay time from the peak level to the start of the sustain level is memorized for each harmonic and the level of each harmonic is controlled in response to such information. In one example of the electronic musical instrument, the level of each harmonic constituting a musical tone is amplitude-modulated with a different period and depth.