System and method to perform in-ear noise dosimetry and personal attenuation rating under an electro-acoustic earplug while excluding wearer-induced disturbances and separating exposure sources
US12413920B2 · kind B2 · utility
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Key dates
| Filing date | Nov 1, 2020 |
| Grant date | Sep 9, 2025 |
| Priority date | — |
| Expiry date | Jul 23, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/1083
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method to measure noise reduction and evaluate the contributions of various sound sources to noise exposure dose of exposition using electro-acoustic earplugs is provided. The system may be implemented as an advanced HPD in the form of an electro-acoustical earplug. The earplug comprises an OEM 10 and an IEM. The system is configured to calculate an estimated IEM signal based on calculation of estimates of residual ambient noise, payback sounds or WID present in the ear canal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.