Patent · US Expired

Digital data transmission process and installation

US4547879A · kind A · utility

17Cited by
3References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 3, 1983
Grant dateOct 15, 1985
Priority date
Expiry dateNov 3, 2003

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L12/43
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

The transmission of digital data takes place over a network comprising a data transmission line and a control and synchronizing line connecting together a master station, alone capable of transmitting over the control line, and several slave stations. The two lines are unidirectional and looped back to the master station and the stations transmit information in phase over the two lines. For that, each slave station comprises means for extracting clock information from the signal permanently present on the control line.

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