Sleep inducing apparatus and electronic device using the same
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United States of America Patent
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May 14, 2013
Grant Date -
Nov 19, 2009
app pub date -
May 18, 2009
filing date -
May 19, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus for inducing sleep includes an audio generator, a signal generator, and a signal processor. The audio generator generates audio signals. The signal generator generates electrical signals with a frequency between 0.4 HZ to 4 HZ. The signal processor adjusts amplitudes of the audio signals according to the frequency, and outputs the adjusted audio signals.
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Family
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