Featured patents

Optical Transmission System
US 08855488 B2, Oct. 7, 2014, Space, Tetsuya Hayashi / Sumitomo Electric Industries, Ltd. (Osaka-shi, Osaka, JP)
An optical transmission system to perform optical transmission using a spatial…

Nonlinear Compensation Using an Enhanced Backpropagation Method With Subbanding
US 08873971 B2, Oct. 28, 2014, Precompensation (e.g., prechirping, predistortion, Neng Bai et al. / NEC Laboratories America, Inc. (Princeton, US)
A transmitter, comprising:…

Dynamic Data Center Network With Optical Circuit Switch
US 08867915 B1, Oct. 21, 2014, Space, Bikash Koley et al. / Google Inc. (Mountain View, US)
An optical circuit switch system in a data center that provides a dynamic optical…

High-Speed Optical Communications System
US 08761609 B1, June 24, 2014, Clock recovery, Diego E. Crivelli et al. / ClariPhy Communications, Inc. (Irvine, US)
A receiver comprising:…

EPON With Power-Saving Features
US 08744261 B2, June 3, 2014, Determination of communication parameter, Ryan E. Hirth et al. / Broadcom Corporation (Irvine, US)
A system comprising:…

System and Method for Reducing Memory Requirements for Electrical Domain Compensation of Intra-Channel Nonlinearity in an Optical Communications System
US 08705982 B2, April 22, 2014, Precompensation (e.g., prechirping, predistortion, Ahmed M. Awadalla et al. / Ciena Corporation (Hanover, US)
A digital filter for processing an input signal to be conveyed through an optical…

Detecting Method, Apparatus, and System in an Optical Distribution Network
US 08682163 B2, March 25, 2014, Bidirectional, Sulin Yang / Huawei Technologies Co., Ltd. (Shenzhen, CN)
A central office subsystem, comprising:…

Wavelength-Multiplexed Optical Controller Using a Ring Architecture
US 08571409 B1, Oct. 29, 2013, Ring or loop, Behzad Moslehi et al. / Intelligent Fiber Optic Systems, Inc. (Santa Clara, US)
An optical ring having a plurality of nodes, each node having an output coupled…

Optical Communication Device and Dispersion Compensation Method
US 08538265 B2, Sept. 17, 2013, Dispersion compensation, Noriaki Mizuguchi et al. / Fujitsu Limited (Kawasaki, JP)
An optical communication device comprising:…

Dielectric Photonic Receivers and Concentrators for Radio Frequency and Microwave Applications
US 08498539 B1, July 30, 2013, Hybrid Communication System, Anatoliy Savchenkov et al. / OEwaves, Inc. (Pasadena, US)
A method for receiving a radio frequency (RF) signal, comprising:…

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