Aural transmitter device
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United States of America Patent
Stats
-
Mar 19, 1985
Grant Date -
N/A
app pub date -
Dec 27, 1982
filing date -
Dec 29, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An aural transmitter device is improved by largely eliminating the amplification of ambient environmental noise. To this end, control may be effected in response to the difference between a smoothed, rectified output of an amplifier and a reference voltage, either with or without a high-pass filter for removing low frequency noise components.
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Family
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Cited Art Landscape
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