Method and apparatus for providing a sidetone in a wireless communication device
US7330739B2 · kind B2 · utility
76Cited by
8References
31Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 31, 2005 |
| Grant date | Feb 12, 2008 |
| Priority date | — |
| Expiry date | Sep 2, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/6008
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A wireless communication device is disclosed that provides a sidetone to the device user. The device converts an outbound analog audio signal to an outbound audio bitstream from which a sidetone bitstream is extracted. The device also converts an inbound digital audio signal to an inbound audio bitstream. A filter in the device both adds the sidetone bitstream to the inbound audio bitstream and filters the resultant added bitstreams to provide an analog audio signal with sidetone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.