ATM interface device with double header conversion
US6452939B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1999 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | Mar 24, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An asynchronous transfer mode (ATM) interface device includes a router/header conversion unit for adding a routing tag to the header of an input cell and converting the cell header into arbitrary virtual path identifier/virtual channel identifier (VPI/VCI), and a cell switching unit for routing the cell received from the router/header conversion unit according to the routing tag. The ATM interface device also includes a second header conversion unit for converting the cell header received from the cell switching unit into the output VPI/VCI corresponding to the arbitrary VPI/VCI, and a demultiplexing unit for transferring the cell from the second header converter to the output physical link corresponding to the output VPI/VCI.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.