Data/voice/fax compression multiplexer
US5682386A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 1994 |
| Grant date | Oct 28, 1997 |
| Priority date | — |
| Expiry date | Apr 19, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/6494
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data multiplexing network is described which multiplexes a plurality of asynchronous data channels with an asynchronous data stream representing compressed voice signals and/or facsimile signals onto a single synchronous data packet stream. The single synchronous data packet stream is then transmitted by a high speed statistical multiplexer over a composite link to a second site using a modified high-level synchronous data link control protocol with an overlay of a priority statistical multiplexing algorithm. The asynchronous data channels and the compressed voice channel and/or facsimile signals are demultiplexed and reconstructed for sending to other asynchronous computer terminals and to a standard telephone or facsimile analog port at the second site, respectively. PBX trunk interfaces are also provided to allow PBX's to share the composite link between sites.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.