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:
Dec. 31, 1991
Filed:
Oct. 10, 1990
Hiroyuki Toda, Hamamatsu, JP;
Yamaha Corporation, Hamamatsu, JP;
Abstract
A musical tone signal generating apparatus provides at least plural modulation operation systems and plural memories, wherein each of the modulation operation systems carries out the predetermined modulation operation on each of plural pieces of input information applied thereto so that each of the memories stores the operation result thereof as the waveform information. These modulation operation systems are connected together such that plural pieces of waveform information stored in the memories are selectively supplied to each modulation operation system. By changing over the connections between the modulation operation systems and memories in the time-sharing system, the waveform operation is carried out based on the predetermined algorithms for forming the musical tone signal. Preferably, the predetermined modulation operation is the frequency-modulation operation.