Electronic bell-tone generating system
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United States of America Patent
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-
Feb 21, 1989
Issued Date -
N/A
app pub date -
Apr 22, 1988
filing date -
Aug 12, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electronic bell-tone generating system selectively provides a plurality of bell tones having improved tonal quality includes a plurality of tone generators operated in preselected combinations by a microprocessor in response to inputs from a keyboard. Data representing characteristic bells, including a fundamental tone and associated partial tones, their initial amplitude, and decay rate, is stored within a random access memory, input periodically to the respective tone generators comprising double-buffered, digital-to-analog converters, and output simultaneously to produce the 'strike' of a bell.
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