Patent · US Expired

Industrialized token passing network

US4667323A · kind A · utility

120Cited by
6References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 3, 1985
Grant dateMay 19, 1987
Priority date
Expiry dateSep 3, 2005

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L12/417
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

A communications network is comprised of two or more stations which share mastership of the network by passing a token between them. While a station holds the token it may send low or high priority messages. It may also inform other stations of its intent to exit the network and it may solicit for new stations wanting to enter the network. The token is passed from station-to-station in accordance with a predetermined time schedule which insures each station fair access to the network while insuring that messages are conveyed between stations within a predetermined worst case time delay.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.