Method and device for in ear canal echo suppression
US11057701B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2019 |
| Grant date | Jul 6, 2021 |
| Priority date | — |
| Expiry date | Feb 8, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R25/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An earpiece (100) and acoustic management module (300) for in-ear canal echo suppression control suitable is provided. The earpiece can include an Ambient Sound Microphone (111) to capture ambient sound, an Ear Canal Receiver (125) to deliver audio content to an ear canal, an Ear Canal Microphone (123) configured to capture internal sound, and a processor (121) to generate a voice activity level (622) and suppress an echo of spoken voice in the electronic internal signal, and mix an electronic ambient signal with an electronic internal signal in a ratio dependent on the voice activity level and a background noise level to produce a mixed signal (323) that is delivered to the ear canal (131).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.