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. 11, 2001
Filed:
May. 07, 1999
Applicant:
Inventors:
Giorgio Grasso, Monza, IT;
Fausto Meli, Piacenza, IT;
Marcos Antonio Brandão Sanches, Lexington, SC (US);
Mario Tamburello, Vimercate, IT;
Assignee:
Pirelli Cavi e Sistemi S.p.A., Milan, IT;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J 1/402 ;
U.S. Cl.
CPC ...
H04J 1/402 ;
Abstract
A multi-channel optical telecommunication system and method for transmitting optical signals having distinct wavelengths. Spectral selection is provided for the optical signals to add or drop signals of predetermined wavelengths. The signals are divided into at least two series of different wavelengths. The signals of each series are dropped or signals of corresponding wavelengths are added, and the signals are then combined.