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:
Mar. 17, 2015
Filed:
Jan. 18, 2010
Francesco Testa, Pomezia Rome, IT;
Antonio D'errico, Calci, IT;
Francesco Testa, Pomezia Rome, IT;
Antonio D'Errico, Calci, IT;
Telefonaktiebolaget L M Ericsson (publ), Stockholm, SE;
Abstract
A packet switchcomprises wavelength tunable optical transmitters, an optical switch fabric, optical detectorsand a controller. The transmittersare arranged to receive at least one electrical signal packet to be switched and convert it into a corresponding optical signal packet at an input wavelength. The optical switch fabriccomprises an ingress stagecomprising wavelength selective routersand an egress stagecomprising wavelength selective routersand tunable wavelength convertersarranged to receive an optical signal at the input wavelength and to output an optical signal at an output wavelength. The controlleris arranged to set the input wavelength of a transmitterand the output wavelength of a wavelength converter to configure a path across the switch fabricconnecting the transmitterto a detector. A communications network routercomprises an input module, a packet switch, an output moduleand a scheduler