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Electronic musical instrument forming tones by wave computation

  • US 4,747,332 A
  • Filed: 03/24/1986
  • Issued: 05/31/1988
  • Est. Priority Date: 10/15/1981
  • Status: Expired due to Term
First Claim
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1. An electronic musical instrument comprising:

  • time channel providing means for providing repeated cycles of a plurality of correspondingly located time slots, each said corrspondingly located time slot over repeated cycles constituting a time-division-multiplexed time channel;

    tone pitch information generating means for generating a pitch information signal in synchronism with each said time channel, each said pitch information signal designating a pitch of a musical tone signal to be formed during each said time channel;

    parameter generating means for generating parameter signals for computing each said musical tone signal in synchronism with each said time channel, based on a modulation formula;

    tone forming means for forming each said musical tone signal by repeatedly executing a signal forming computation based on said modulation formula, using said pitch information signal and said parameter signals; and

    time slot assigning means for variably assigning a plural number of said cycles of said time slots, in each said time channel, to each said signal forming computation to allow execution thereof during said plural cycles, a number of said plural cycles being determined by a kind of said modulation formula.

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