Method for noise dosimetry in appliances employing earphones or headsets
US6507650B1 · kind B1 · utility
18Cited by
3References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 20, 2000 |
| Grant date | Jan 14, 2003 |
| Priority date | — |
| Expiry date | Jan 20, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01H3/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.