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:
Aug. 10, 1982
Filed:
Nov. 19, 1980
Tsuyoshi Futamase, Hamamatsu, JP;
Nippon Gakki Seizo Kabushiki Kaisha, Hamamatsu, JP;
Abstract
An electronic musical instrument is of a type wherein a tone is synthesized by combining partials and of a type which utilizes a tone production assignment technology including a small number of tone generating circuits for a large number of playing keys. When a key is depressed to designate a tone to be produced in a certain tone color, generations of the partials for constituting that tone are respectively assigned to time slots of time division multiplexing channels. Upon depression of keys, frequencies and envelopes are designated partial by partial and each of such designations is separately assigned to an available one of the time slots. Thus the time slots are efficiently used for production of a large number of tones.