Address handler for an asynchronous transfer mode switch
US5467349A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1993 |
| Grant date | Nov 14, 1995 |
| Priority date | — |
| Expiry date | Dec 21, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5652
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An improved address handling circuit includes a temporary storage device for temporarily storing at least one current cell, including a header, for address processing. A virtual channel (VC) filter is coupled to the temporary storage device and includes a VC address storage device for storing at least one selected virtual channel identifier (VCI), corresponding VC matching data and a corresponding cell identifier. The VC filter compares data from the header of the at least one current cell with the selected VCI to identify cells matching the at least one VCI. The VC filter includes a VC matching device for indicating a match. A virtual path (VP) filter is coupled to the temporary storage device and includes a VP address storage device for storing at least one selected virtual path identifier (VPI), corresponding VP matching data and a corresponding cell identifier. The VP filter compares the data from the header of the at least one current cell with the selected VPI to identify cells matching the at least one VPI. The VP filter includes a VP matching device for indicating a match. The VP filter has lower priority than said VC filter. A match priority device, coupled to the VC match…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.