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.

Date of Patent:
Mar. 06, 2007

Filed:

Dec. 27, 1999
Applicants:

Anthony Mazzurco, Plano, TX (US);

Joseph A. Crossett, Iii, Richardson, TX (US);

Manouchehr Darabpour, Carrollton, TX (US);

Inventors:

Anthony Mazzurco, Plano, TX (US);

Joseph A. Crossett, III, Richardson, TX (US);

Manouchehr Darabpour, Carrollton, TX (US);

Assignee:

Alcatel Lucent, Paris, FR;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J 1/16 (2006.01); H04L 12/66 (2006.01); H04L 12/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

A telecommunications system () includes a first cross-connect switch () and a second cross-connect switch (). The first cross-connect switch () includes a switching matrix that provides information from a matrix connection to a selector () of an output interface (). The selector () places the information from the switching matrix onto one or both of a working channel () and a protection channel (). The second cross-connect switch () receives the working channel () and the protection channel () at an input interface (). The input interface () includes a selector () that checks a signal quality of the working channel () and the protection channel (). When necessary, the selector () sends a request to the selector () to bridge the working channel () onto the protection channel (). According to the signal quality, the selector () selects one of the working channel () and the protection channel () for transfer to a switching matrix () of the second cross-connect switch (). The selector () avoids creating and deleting matrix connections in the switching matrix () in performing protection switches between the working channel () and the protection channel ().


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