Patent · US Active

Data transfer method and automation system used in said data transfer method

US7697538B2 · kind B2 · utility

4Cited by

1References

48Claims

0Family size

Assignee

Beckhoff Automation GmbH · DE

Inventors

Holger Buettner · Berlin, DE
Jens Sachs · Petershagen, DE

Key dates

Filing date	Mar 13, 2007
Grant date	Apr 13, 2010
Priority date	—
Expiry date	Oct 31, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2001/0094
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method transmits data packets on a data transmission link between two communication subscribers. The data packets respectively contain a check character which is calculated from the other data in the data packet. One communication subscriber uses the check character from the last data packet received by the other communication subscriber as start value for calculating the check character for a subsequent data packet which is to be sent to the other communication subscriber.

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