System for and method of, providing a header and a trailer in data packets
US6449271B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2000 |
| Grant date | Sep 10, 2002 |
| Priority date | — |
| Expiry date | Mar 10, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5679
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A header substituted for preamble nibbles by an individual one of the originating devices in a plurality, and an individual one of the ports in such originating device, indicates such originating device and such port. Such port in such originating device sends such modified packet to others of the originating devices and to an observing station. The header format is such that the last nibble in the header and the remaining preamble portion will not be confused with any two (2) nibbles in the header. A particular one of the originating devices indicated in the data converts the header back to the preamble format and transmits the converted packet to a receiving station. The observing station records the individual originating device, and the individual port in such device, indicated in the header. Each packet includes at its end a trailer formed from a plurality of nibbles and indicating whether or not a collision has occurred between such packet and a packet from another one of the originating devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.