Patent · US Expired

Data bus for a plurality of nodes

US7440697B1 · kind B1 · utility

7Cited by

19References

7Claims

0Family size

Assignee

Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

Karel Smuk · Schweitenkirchen, DE
Robert Griessbach · Weyarn, DE
Martin Peller · Birkenfeld, DE
Josef Berwanger · Poing, DE

Key dates

Filing date	Feb 23, 1999
Grant date	Oct 21, 2008
Priority date	—
Expiry date	Feb 23, 2019

Classification

Technology area (CPC H)Electricity
CPC primaryH04L12/44
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

An apparatus and method for detecting optical defects in optical bus systems which use optical modules in communication with a plurality of nodes connected to each other. Deterioration of the optical transmission quality is detected as a resulting deterioration in an electrical output signal and noted deterioration is stored and read out.

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