Station-to-station full duplex communication in a communications network
US5121382A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1989 |
| Grant date | Jun 9, 1992 |
| Priority date | — |
| Expiry date | Oct 11, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4265
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention provides a method and apparatus for establishing point-to-point full duplex communication between two stations served by a local area network (LAN) or connected by a communication link. One station initially transmits a request message through the link. The request message indicates that a first station is available for full duplex communication and also serves as a test to determine whether any non-full duplex devices are present along the point-to-point link between the first station and a second station. A second station receives the request message and responds by transmitting a reply message which indicates its availability for full duplex communication. Subsequently, full duplex communication may commence. The two stations periodically exchange additional messages to continuously verify that full duplex communication is operating properly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.