Polling network communication system having transmission request registration means
US4924461A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1988 |
| Grant date | May 8, 1990 |
| Priority date | — |
| Expiry date | Dec 20, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/403
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a sequential polling type communication network system including a master station, a first channel, a second channel, and at least two slave stations, the master station includes request registration units for registering data transmission requests from slave stations during a data transmission by another slave station, and an interrupt polling unit for polling the slave station which has issued the data transmission request after completion of the data transmission or completion of a polling of a slave station, and the slave station includes a unit for responding to a polling during the data transmission, and transitting a data transmission request when data to be transmitted exists, and for responding to the interrupt polling from the master station, and transmitting the data to the master station until the data transmission is completed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.