Communications adapter for processing ATM and
US6178180A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1997 |
| Grant date | Jan 23, 2001 |
| Priority date | — |
| Expiry date | Nov 26, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/13396
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A communications adapter card provides an interface for a TI or E1 transmission line and a signal processing circuit which can be programmed to process receive and transmit data in either an ISDN or an ATM format. Preferably, two such interfaces and two such signal processing circuits are provided on the card, so that a single adapter card can be used for attachment to both an ISDN network and to an ATM network. Each signal processing circuit includes a pair of DSPs, each of which has a two port buffer extending to a parallel bus. All such DSPs are connected to a data bus. The DSPs in each signal processing circuit execute programs to operate in either an ATM mode or an ISDN mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.