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. 20, 2002
Filed:
Apr. 08, 1998
Applicant:
Inventor:
Sture Roos, Bergshamra, SE;
Assignee:
Telefonaktiebolaget L M Ericsson (publ), Stockholm, SE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 1/122 ;
U.S. Cl.
CPC ...
H04L 1/122 ;
Abstract
A communications switching system includes a switching network and a number of access units. The switching network includes a number of multiplexing arrangements and a number of switching arrangements. In order to provide redundancy in the system, a number of multiplexing and switching arrangements are built together to form a number of combined multiplexing and switching arrangements, and a common protection switching arrangement is arranged to provide protection switching both between access units and multiplexing switching arrangements and between access units and accessing networks.