Sleep-aide device
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United States of America Patent
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Oct 15, 2013
Grant Date -
Dec 25, 2003
app pub date -
Jun 24, 2002
filing date -
Jun 24, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In one aspect, the invention is a sleep device. The sleep-aide device includes a soft housing adapted to be disposed over a user's head, a microphone positioned on the housing to receive an ambient sound signal, a suppression circuit that receives the ambient sound signal and produces a suppression sound signal, and a set of transducers, arranged in the soft housing, which receive the suppression sound signal. The suppression sound signal has a magnitude and phase to substantially cancel the ambient sound signal at the user's ear.
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Family
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