Integrated user network interface device for interfacing between a sonet network and an ATM network
US6188692A · kind A · utility
30Cited by
16References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1998 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | Feb 12, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5653
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A user network interface device for interfacing between synchronous optical network (SONET)/synchronous digital hierarchy (SDH) which is characterized by a continuous stream of frames of data and an asynchronous transfer mode (ATM) characterized by a non-continuous stream of cells of data. The user network interface device includes an integral phase lock loop circuit to recover clock and data from an encoded incoming stream of data. In another embodiment, the network interface device synthesizes a high speed transmit clock from a low frequency reference source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.