Method and apparatus for transmitting signaling tones over a packet switched network
US7949125B2 · kind B2 · utility
2Cited by
7References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2009 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Sep 24, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q1/46
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
As part of a system and method for transmitting a signaling tone over a packet switched data (or other communication) network, an audio encoder may have a speech encoding unit and a tone distorter. The tone distorter may distort one or more components of a signaling tone within an audio signal and the speech encoding unit may encode speech and the distorted signaling tone within the audio signal. A control signal may be sent to a tone generator to reproduce the distorted tone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.