Method for noise dosimetry in appliances employing earphones or headsets
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United States of America Patent
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Jan 14, 2003
Grant Date -
N/A
app pub date -
Jan 20, 2000
filing date -
Apr 27, 1999
priority date (Note) -
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Abstract
A noise dosimeter for an appliance including a speaker to broadcast signals includes a filter receiving signals to be broadcast and having a transfer function generally modeling the frequency response of the appliance to provide output approximating noise appearing at the speaker. Signal processing circuitry processes the filter output before it is accumulated by an accumulator. The value of the accumulator represents a user's exposure to noise when using the appliance.
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