Stackable UTOPIA switching apparatus for a broadband switching system
US6343077B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1999 |
| Grant date | Jan 29, 2002 |
| Priority date | — |
| Expiry date | Aug 3, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5672
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A stackable UTOPIA switching device for use in an Asynchronous Transfer Mode switch is provided to connect to more digital subscriber lines (DSL). The inventive UTOPIA switching device can work along or be arranged in a tree-like hierarchy to connect to more DSLs. The UTOPIA switching device comprises an Up-link end and a down-link end. The down-link end can connect to 31 slave multiplexers or physical layers at the most. The up-link end can connect to master USD or slave USD. Both the up-link end and the down-link end have three input queues and an output queue for storing the cells. The cells are stored in the input queues and the output queues according to the control of a priority queuing logic circuits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.