Method and system for audio compression negotiation for multiple channels
US5742773A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1996 |
| Grant date | Apr 21, 1998 |
| Priority date | — |
| Expiry date | Apr 18, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M11/06
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Modem-equipped computers which can initiate an audio channel using the modem data connection. The connection is initiated with a new protocol called the voice-over-data protocol. The new protocol does not require any additional modem hardware or telephone line features, and is not tied to any proprietary hardware/software compression or transmission schemes. The voice-over-data protocol negotiates an audio compression/decompression scheme and then sets up an audio channel over an existing data connection using a socket. Compressed audio data is then delivered to the remote computer where it is decompressed and output. The voice-over-data protocol significantly reduces the latency which disrupts normal speech patterns when voice data is sent over a data connection. This protocol also reduces the bandwidth required to send voice over a data connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.