The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 06, 2002
Filed:
Sep. 11, 2000
Applicant:
Inventors:
Karl Glas, Herzogenaurach, DE;
Joachim Lohmeyer, Hilpoltstein, DE;
Rolf Reuschen, Neuffen, DE;
Bernhard Schmid, Ebersbach, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 2/914 ; H04L 1/226 ; H04L 1/2413 ;
U.S. Cl.
CPC ...
H04L 2/914 ; H04L 1/226 ; H04L 1/2413 ;
Abstract
An Ethernet network with redundancy properties and an associated method for detecting and eliminating errors in the network. A redundancy manager ( ), which is connected to the line ends of the network ( ), checks the status of the network by transmitting and receiving test telegrams. If there is an interruption in the network, the redundancy manager ( ) connects the line ends ( ) and thereby ensures continued network operation within milliseconds. The network has a loop structure that is less expensive than a dual bus structure even though fast media redundancy is ensured.