Acoustic coupling free electric drum
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United States of America Patent
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-
Jul 21, 1981
Grant Date -
N/A
app pub date -
Sep 21, 1979
filing date -
Sep 21, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Faithful replication of a drummer's hits on an electric drum, free of cogeneration of spurious signals by acoustic coupling of the drum pick-up with extraneous energy sources such as nearby musical instruments is achieved by employing as the drum hit pick-up a variable resistance transducer comprising a foamed dielectric matrix, e.g. polymer, having electroconductive particles therein, sandwiched between conductive members one of which is contiguous with the drum head.
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