Multiple wave generator

Details Multiple wave generator Multiple wave generator

1982-10-15

1985-08-20

Thomas, James D.

Boots, shoes, and leggings

84 101, 364723, G06F 102, G06F 738, G01H 100

Patent

active

045368538

ABSTRACT:
A multiple wave generator for an electronic musical instrument which has a wave data memory storing plural data samples of a wave shape, a wave address register storing wave address data partially designating sampled data in the wave data memory, a difference address register storing difference address data which specifies incremental address amount, a wave address calculator adding the wave address data to the difference address data and writing into the wave address register, the summed address data being separated into wave memory address data and partial address data, and a wave calculator. The wave memory address data, which are part of the wave address data, are applied to the wave data memory for reading out one data sample, and the one data sample and the partial address data are applied to the wave calculator for calculating interpolated wave sample data corresponding to the wave memory address and the partial address.

REFERENCES:
patent: 3676655 (1972-07-01), Anacona
patent: 4119005 (1978-10-01), Kondo et al.
patent: 4249447 (1981-02-01), Tomisawa
patent: 4297933 (1981-11-01), Nishimoto
patent: 4424730 (1984-01-01), Ezawa

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