Linear piecewise waveform generator for an electronic musical in

Details Linear piecewise waveform generator for an electronic musical in Linear piecewise waveform generator for an electronic musical in

1980-07-07

1982-04-20

Malzahn, David H.

Boots, shoes, and leggings

G06F 102

Patent

active

043262600

ABSTRACT:
A waveform generator for an electronic musical instrument comprises a signal generator (10) developing a binary signal sequentially increasing and decreasing in value at a selected rate and a memory (26) storing a plurality of parameter instructions at respective memory addresses, each memory address corresponding to a continuous group of values of the binary signal. An addressing circuit (24) addresses each memory address in response to the binary signal assuming a value within the group of values corresponding thereto. The binary signal is processed with the addressed parameter instructions in an arithmetic circuit (22,40) for developing a linear piecewise approximation of a desired waveform signal.

REFERENCES:
patent: 3515792 (1970-06-01), Deutsch
patent: 3763364 (1973-10-01), Deutsch et al.
patent: 3824559 (1974-07-01), Grundy
patent: 3962573 (1976-06-01), Staley
patent: 4001555 (1977-01-01), Levis et al.
patent: 4130876 (1978-12-01), Mitsuhashi
patent: 4225936 (1980-09-01), Lesche
Schilling and Belove, Electronic Circuits: Discrete and Integrated, McGraw-Hill, Inc., 1968, pp. 42-50.

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