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:
Oct. 25, 2005
Filed:
Jun. 12, 2002
Pavel Peleska, Graefelfing, DE;
Pavel Peleska, Graefelfing, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
In a fault-tolerant system which is constructed from two identical control devices, there is a requirement to establish consistent memory contents in both devices in order to guarantee uninterrupted operation in the event of a hardware defect in one of the two control devices. To this end, the memory contents are transferred from an active control device to an inactive control device. In this situation, the active control device remains in operation and the contents of the memory of the active control device can be continually updated. According to the invention, the transfer of the memory contents is performed by a copying device, whereby the copying device manages the memory areas of the memory of the active control device which are to be transferred and which are possibly changing by means of a memory monitoring module and a marking memory.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile