Patent · US Expired

Serial bus system using bitwise arbitration for independently communicating with and controlling individual bus systems

US5903565A · kind A · utility

22Cited by

3References

15Claims

0Family size

Assignee

WABCO GmbH · DE

Inventors

Detlev Neuhaus · Hannover, DE
Wolfgang Stehr · Hannover, DE
Jochen Kalter · Hannover, DE
Frank Pietsch · Vancouver, US

Key dates

Filing date	Aug 15, 1995
Grant date	May 11, 1999
Priority date	—
Expiry date	Aug 15, 2015

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2012/40215
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A star coupler for serial bus systems operates in compliance with the carrier sense multiple access (CSMA) method. The star coupler connects a plurality of individual bus systems to corresponding T-drivers and associated logic circuits, so that arbitration is performed within the total bus system in which all individual bus systems are included. Feedback suppression is used to assure unidirectional data flow, while error detection is combined with switching logic to disable faulty individual bus systems without affecting the other connected individual bus systems.

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