Systems and methods for suppressing sound leakage
US10334372B2 · kind B2 · utility
50Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2018 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | Nov 5, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A bone conduction speaker includes a housing, a vibration board and a transducer. The transducer is located in the housing, and the vibration board is configured to contact with skin and pass vibration. At least one sound guiding hole is set on at least one portion of the housing to guide sound wave inside the housing to the outside of the housing. The guided sound wave interfaces with the leaked sound wave, and the interfacing reduces a sound pressure level of at least a portion of the leaked sound wave. A frequency of the at least a portion of the leaked sound wave is lower than 4000 Hz.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.