Linear piecewise waveform generator for an electronic musical instrument
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United States of America Patent
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-
Apr 20, 1982
Grant Date -
N/A
app pub date -
Jul 7, 1980
filing date -
Jul 7, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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