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. 01, 2015
Filed:
Jun. 04, 2013
Telefonaktiebolaget L M Ericsson (Publ), Stockholm, SE;
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL), Stockholm, SE;
Abstract
A method performed by a transceiver for use in fiber network for sending and/or receiving signals. Transceiver includes SCM device; laser diode; Red-Blue Filter, RBF, having red, blue and common channels; PD; and Subcarrier Demultiplexing, SCDM, device. SCM device receives electromagnetic signals on at least two input ports, multiplexes electromagnetic signals and outputs signal to laser diode. Laser diode receives signal, converts signal to optical signals comprising plurality of subcarriers of different frequencies distributed in frequency around main optical carrier, and outputs subcarriers to red channel of RBF. RBF receives subcarriers and outputs to the fiber network via common channel. RBF receives subcarriers on common channel and filters out blue frequencies and outputs to photo diode. Photodiode receives the subcarriers having blue wavelengths, converts subcarriers into electromagnetic signal and outputs electromagnetic signal to SCDM device. SCDM device demultiplexes electromagnetic signal into at least two electromagnetic signals and outputs.