Apparatus and method for constructing data for transmission within a reliable communication protocol by performing portions of the protocol suite concurrently
US6122670A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1997 |
| Grant date | Sep 19, 2000 |
| Priority date | — |
| Expiry date | Oct 30, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for sending and receiving data with a reliable communication protocol. The system includes a computer at a node having a backplane, a CPU board plugged into the backplane, software instructions for the CPU, and a special network board plugged into the backplane. The CPU board, software, and network card act to implement the TCP/IP protocol suite. The network card or board includes an interface to receive data packets from the physical layer, and circuitry to verify the TCP checksum before de-encapsulation and routing of the TCP segment by the network layer software. It also includes circuitry to automatically prepare the acknowledgement signal to be sent by the receiving computer to the sending computer. It additionally includes circuitry to calculate the error detecting code on outgoing signals from the sending computer to the receiving computer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.