Method and apparatus for transmitting frequency shift key data in a packetized format
US7743164B2 · kind B2 · utility
3Cited by
8References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 13, 2004 |
| Grant date | Jun 22, 2010 |
| Priority date | — |
| Expiry date | Feb 26, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/57
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
This invention relates to a method and apparatus for transmitting frequency shift key (FSK) data in packetized format. More particularly, the invention is directed to a method for using a new Real-Time Transport Protocol (RTP) payload type to transport FSK data used for voiceband data transmission outside of the voice RTP stream. This technique allows for data compression and reduces the possibility of packet loss for FSK data carried in-band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.