Method and apparatus for activating switches in response to different acoustic signals
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United States of America Patent
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Feb 20, 1996
Grant Date -
N/A
app pub date -
May 7, 1993
filing date -
May 7, 1993
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An acoustic switch device that independently operates two or more electrical appliances. The acoustic switch operates a first electrical appliance upon receipt of a first series of acoustic signals and operates a second electrical appliance upon receipt of a second series of acoustic signals that is different from the first series of acoustic signals.
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