Patent · US Expired

Device for potential-free transmission of data

US5105441A · kind A · utility

13Cited by

7References

13Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Wolfgang Borst · Schwieberdingen, DE
Wolfgang Botzenhardt · Schwieberdingen, DE
Siegfried Dais · Gerlingen, DE
Otto Karl · Leonberg, DE
Uwe Kiencke · Ludwigsburg, DE
Martin Litschel · Leinfelden, DE
Herbert Lohner · Friolzheim, DE

Key dates

Filing date	Mar 7, 1989
Grant date	Apr 14, 1992
Priority date	—
Expiry date	Mar 7, 2009

Classification

Technology area (CPC H)Electricity
CPC primaryH04L25/0268
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A device for potential-free transmission of dominant and recessive data bits in a bus system operating with bit-by-bit arbitration includes a series connection of a modulator, a galvanic separation circuit, and a demodulator. Data bits to be transmitted are scanned in the modulator at equidistant time intervals and are divided into two intermediate trains of data bits wherein the dominant bits alternate with the recessive bits. The two intermediate trains are applied to two input terminals of a galvanic separating device, and a demodulation is effected on the output side of the separating device.

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