Device for insertion of digital packets in a transmission channel
US5280479A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 17, 1992 |
| Grant date | Jan 18, 1994 |
| Priority date | — |
| Expiry date | Jun 17, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4347
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The multiplexing device is for insertion of digital packets, supplied by several different sources, in a same transmission channel having an average data rate at least equal to the sum of the average data rates supplied by the sources. It comprising a packet call input unit connected to the transmission channel. The sources are cascaded and the downstream source constitutes an interface towards the input unit. Each source comprises a generator of an insertion priority order for each packet as a function of the type of packet, of the number of stored packets, and of insertion rules associated with the type of packets to be transmitted. Each cascaded source, with the exception of the most upstream source, has a routing circuit supplying at its output the highest priority among the two priorities applied to its input, and of which one corresponds to the source itself and the second to the upstream unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.