Patent application number | Description | Published |
20110243559 | Optical Network Element and Optical Transmission System - The invention relates to an optical network element ( | 10-06-2011 |
20110274425 | METHOD FOR PROVIDING PROTECTION IN AN OPTICAL COMMUNICATION NETWORK AGAINST CONNECTION FAILURES - The invention relates to an optical communication network ( | 11-10-2011 |
20120131395 | METHOD AND APPARATUS FOR REDUCING BIT ERRORS - An apparatus and method for reduction of bit errors in continuous data transmission via a data transmission medium comprising. The apparatus ( | 05-24-2012 |
20120251122 | Method of Operating an Optical Network Element and Optical Network Element - The invention relates to a method of operating a first optical network element ( | 10-04-2012 |
20120275786 | Optical Line Termination Node and Passive Optical Network - An optical line termination node has a first connection arrangement for connecting a working fibre, a second connection arrangement for connecting a protection fibre, a transceiver arrangement having first primary link and a first secondary link, and protection switching means configured for being switched either in a working operating state or in a protection operating state. | 11-01-2012 |
20120328293 | Remote Node and Network Architecture and Data Transmission Method for a Fiber-Optic Network, Especially for Low Bit-Rate Data Transmission - The invention relates to a remote node architecture for a fiber-optic network, especially for low bit-rate data transmission, the fiber-optic network comprising a central node and a plurality of remote nodes serially connected to each other or to the central node, respectively, the central node and the remote node being capable of communicating by means of digital optical signals created by the central node or a respective remote node, each digital optical signal comprising a data frame. | 12-27-2012 |
20130094857 | REMOTE NODE AND NETWORK ARCHITECTURE AND DATA TRANSMISSION METHOD FOR A FIBER-OPTIC NETWORK, ESPECIALLY FOR LOW BIT-RATE DATA TRANSMISSION - A remote node architecture for a fiber-optic network, especially for low bit-rate data transmission, the fiber-optic network architecture comprises a central node and a plurality of remote nodes serially connected to each other or to the central node, respectively. The central node and the remote nodes are capable of communicating by means of digital optical signals created by the central node or a respective remote node, each digital optical signal comprising a data frame. The remote node comprises an optical connection network, a single transceiver device comprising an optical receiver unit and an optical transmitter unit, and an electronic controller device for controlling the transceiver device. The optical connection network defines a western optical connection port, an eastern optical connection port, an internal optical receiving port being connected to the optical receiver unit and an internal optical transmitting port being connected to the optical transmitter unit. | 04-18-2013 |
20130251364 | METHOD FOR OPERATING AN OPTICAL TRANSMISSION SYSTEM - An optical transmission system method including generating for a tunable laser a pilot tone having an adjustable pilot tone frequency identifying a wavelength division multiplexing channel used by the tunable laser; multiplying the pilot tone with pilot tone data to provide a pilot tone data signal; supplying the pilot tone data signal and a high frequency data signal to the tunable laser generating an optical laser signal output by the tunable laser responsive to the supplied signals; transporting the optical laser signal to a central wavelength to locker; converting the received optical laser signal to provide a pilot tone data signal for wavelength division multiplexing channels demodulated to detect the pilot tone and the pilot tone data for each individual wavelength division multiplexing channel; and identifying the wavelength division multiplexing channel on the basis of the pilot tone frequency of the detected pilot tone and evaluating the pilot tone data. | 09-26-2013 |
20130336655 | Method of Operating a Primary Optical Node and a Secondary Optical Node - The invention relates to a method of operating a primary optical node, particularly an optical line terminal (OLT), for an optical communications system, wherein said OLT is configured to receive at least one upstream optical signal (uos) from at least one secondary optical node, particularly an optical networking unit (ONU), within at least a first wavelength range (wr | 12-19-2013 |
20140308041 | Optical Network Element and Optical Transmission System - The invention relates to an optical network element, particularly an optical line terminal, OLT, for transmitting and receiving signals wire an optical network that comprises at least one optical fiber link and at least one further optical network element. | 10-16-2014 |
20150030334 | Method, System, and Transceiver Device for Bi-Directionally Transmitting Digital Optical Signals Over an Optical Transmission Link - A method for bi-directionally transmitting digital optical signals over an optical transmission link in which a first optical transmit signal is created according to a first binary digital signal in such a way that the bit information of the first binary digital signal is included in first sections of the symbol interval of the first optical transmit signal. A second optical transmit signal is created by creating an optical wavelength reuse signal using the first optical transmit signal received at the second end of the optical transmission link, the optical wavelength reuse signal being modulated according to a second digital signal in such a way that the bit information of the second digital signal is included in second sections of the symbol interval of the first optical transmit signal received. | 01-29-2015 |