Featured patents

Optical Port Discovery in a WDM Optical Network
US 08811820 B2, Aug. 19, 2014, Bidirectional, Peter Öhlén et al. / Telefonaktiebolaget L M Ericsson (Publ) (Stockholm, SE
A hub node in a wavelength division multiplexed (WDM) optical network configured…

802.3av Compliant Method Using Small Timescale Bandwidth Assignment for Increased ONU Downstream Energy Efficiency
US 08873959 B2, Oct. 28, 2014, Hub or central office, Jingjing Zhang et al. / NEC Laboratories America, Inc. (Princeton, US)
A method for small scale time increased bandwidth assignment to increase optical…

Power Management Implementation in an Optical Link
US 08712236 B2, April 29, 2014, Test signal, Christine M. Krause et al. / Intel Corporation (Santa Clara, US)
A method, comprising:…

Transmission Apparatus and Network Protection Method
US 08712235 B2, April 29, 2014, Spare channel or standby optical fiber, Ryoichi Mutoh et al. / Fujitsu Limited (Kawasaki, JP)
A transmission apparatus comprising:…

Passive Optical Network System and Operating Method Thereof
US 08724995 B2, May 13, 2014, Bidirectional, Akihiko Tsuchiya et al. / Hitachi, Ltd. (Tokyo, JP)
A passive optical network system, comprising:…

Access Multiplexers and Methods for Multiplexing Telecommunication Signals Using an Arrayed Media Converter
US 08670667 B1, March 11, 2014, Bidirectional, Kevin W. Schneider et al. / ADTRAN, Inc. (Huntsville, US)
An access multiplexer for multiplexing telecommunication signals, comprising:…

Polarization and Differential-Group-Delay Insensitive Digital Timing Error Detection for Polarization-Multiplexed Coherent Optical Systems
US 08634726 B2, Jan. 21, 2014, Including postcompensation, Sunil Kumar Singh Khatana et al. / Opnext Subsystems, Inc. (San Jose, US)
A method for timing error detection in a polarization-multiplexed coherent…

Relay Station Arrangement Method and Relay Station Arrangement Device
US 08615172 B2, Dec. 24, 2013, Regenerative, Takuya Miyashita / Fujitsu Limited (Kawasaki, JP)
A method for arranging relay stations in an optical transmission system including…

Digital Communication Method and System
US 08559825 B2, Oct. 15, 2013, Transmitter and Receiver System, M. Hassan Hassan
A digital communication apparatus, comprising: a plurality of transmitting…

Multiple Input/Output Wavelength Selective Switch Device
US 08526814 B2, Sept. 3, 2013, Crossconnect, Noboru Uehara / Santec Corporation (Komaki, JP)
A multiple input/output wavelength selective switch device for inputting…

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