High speed sequenced multi-channel bus
US7286570B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2001 |
| Grant date | Oct 23, 2007 |
| Priority date | — |
| Expiry date | Sep 22, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/568
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Apparatus for transmitting a data stream between cards connected by a midplane breaks the data stream into a plurality of channels. The apparatus comprises a serializer for each channel. Serialized data is transmitted across the midplane to a deserializer at the destination. Sequential cells are sent in different channels. Cell ordering is preserved by staggering the start of cell transmission in the channels. The invention permits data to be transmitted across a mid plane using a reduced number of data lines. The data stream on each card may be carried in a wide bus at a relatively low clock rate. Apparatus according to the invention may be used to transmit an OC-192 data stream across a pin-limited interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.