Frame data exchanging method and apparatus
US6636507B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2000 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | Mar 7, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5681
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A frame switching apparatus in which it is possible to suppress the operating frequency of the bus and to suppress the cell loss ratio in comparison with that of an ATM cell switching apparatus employing the conventional input buffer system. Since the small capacity buffer Bn-n furnishes a transient storage site for a cell C, a distribution circuit 3n is able to receive a new cell Cn from the input buffer 2n to process the received cell. Therefore, head-of-line blocking is less likely to take place. On the other hand, since the small capacity buffer transfers the cell to only one output port, it is sufficient if the switching matrix SWM is of a N:1 multiplexer structure which is far simpler than a complete cross-bandwidth available register structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.