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:
Sep. 24, 1996
Filed:
Sep. 09, 1994
Andreas Foglar, Munich, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
For transmitting message cells via virtual path pairs respectively formed of two separate paths (AP, EP), it is provided that a separate, internal cell header for each of the paths of a path pair is placed in front of every accepted message cell at least by a switching network (CCa) located at the beginning of the respective path pair. These internal cell headers have a plurality of header parts corresponding in number to the plurality of switching stages of the respective switching network. Given the appearance of a message cell, the header parts of the internal cell headers that are allocated to one another and that are intended for the respective switching stage are compared to one another by each of the switching stages of the respective switching network (CCa). Based on the criterion of the result of the comparison, the associated message cell is then either forwarded unmodified or is duplicated. The two message cells resulting therefrom are then forward via separate routes within the respective switching network in conformity with the header parts of the two internal cell headers that come into consideration.