Multicast server apparatus
US5287530A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1992 |
| Grant date | Feb 15, 1994 |
| Priority date | — |
| Expiry date | Apr 2, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/309
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A multicast server apparatus operative to effect the onward transmission of data cells to a plurality of different addresses includes a switch function unit having an input port, an output port and a transfer port, data cells for multicasting being routed from the input port and to the transfer port, first and second header translation units each having an input terminal and an output terminal. The translation units serve respectively as a chainer and as a distributor, the input terminals of the chainer and the distributor being coupled to the transfer port of the switch function unit to receive data for multicasting. The chainer is effective to change address data associated with each data cell fed thereto to a form recognizable by the distributor and to feed back such data cell together with its changed address data to the transfer port. The distributor is effective to convert recognizable address data associated with data cells fed thereto to corresponding route address tags and to feed cells having such address tags to the output port of the switch function unit. Thus, a data cell for multicasting is distributed by the multicasting server apparatus separately to the plurality o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.