Featured patents

Channel Validation in Optical Networks Using Multi-Channel Impairment Evaluation
US 08831424 B2, Sept. 9, 2014, Path finding or path routing, Stefano Piciaccia et al. / Cisco Technology, Inc. (San Jose, US)
A method, comprising:…

Optical Multiplexing Terminal Device, Wavelength Multiplexing Passive Optical Network System and Downlink Wavelength Transmission Method
US 08811819 B2, Aug. 19, 2014, WDM, Masaki Ohira et al. / Hitachi, Ltd. (Tokyo, JP)
An optical multiplexing terminal device in a wavelength multiplexing passive…

Transmission-Path-Type Specifying Apparatus and Transmission-Path-Type Specifying Method
US 08818189 B2, Aug. 26, 2014, Dispersion, Futoshi Izumi / Fujitsu Limited (Kawasaki, JP)
A transmission-path-type specifying apparatus comprising:…

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…

Optical Receiver Integrated on a Substrate
US 08781324 B2, July 15, 2014, Hybrid, Radhakrishnan L. Nagarajan et al. / Infinera Corporation (Sunnyvale, US)
A receiver, comprising:…

Network Restoration Under Link or Node Failure Using Preconfigured Virtual Cycles
US 08774627 B2, July 8, 2014, Path finding or path routing, David Shallcross et al. / Telcordia Technologies, Inc. (Piscataway, US)
A method for designing survivable optical networks that provide end-to-end path…

Optical Receiver, Optical Communication System Using the Same and Equalization Method in the Optical Communication System
US 08682174 B2, March 25, 2014, Using equalizing filter, Daisaku Ogasahara / NEC Corporation (Tokyo, JP)
An optical receiver comprising:…

Fully Photonic Wireless Broadband Base Station
US 08655180 B2, Feb. 18, 2014, Transmitter and receiver, Mikko Vaananen
A base station, arranged to provide radio or microwave communication network…

Filter-Based DPSK Receiver
US 08503889 B2, Aug. 6, 2013, Receiver, David O. Caplan et al. / Massachusetts Institute of Technology (Cambridge, US)
An apparatus for demodulating a differentially encoded phase modulated signal,…

Source-Multiplexed Pulse Amplitude Modulation (PAM) Optical Data Communication System and Method
US 08452189 B2, May 28, 2013, Pulse modulation, Nikolaus W. Schunk / Avago Technologies General IP (Singapore) Pte. Ltd. (Singapore, SG
A transmitter for transmitting an optical signal through an optical fiber,…

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