Featured patents

Method and Apparatus for Detecting Rogue Optical Network Unit in Passive Optical Network
US 08842990 B2, Sept. 23, 2014, Including subscribers, David Hood / Telefonaktiebolaget L M Ericsson (Publ) (Stockholm, SE
A method performed in an optical line terminal (OLT) in a passive optical network…

Optical Transmission System
US 08811818 B2, Aug. 19, 2014, Ring or loop, Thomas Nagel et al. / Adtran GmbH (Berlin-Siemensstadt, DE)
An optical transmission system, comprising:…

Optical Line Terminal (OLT) and Method Therefore for Performing In-Band and Out-Band OTDR Measurements
US 08805183 B2, Aug. 12, 2014, Fault location, Amiad Dvir / Broadcom Corporation (Irvine, US)
An optical line terminal (OLT), comprising:…

Digital Coherent Receiver and Receiving Method
US 08660438 B2, Feb. 25, 2014, Including postcompensation, Takeshi Hoshida et al. / Fujitsu Limited (Kawasaki, JP)
A digital coherent receiver comprising:…

Color Free WDM PON Based on Broadband Optical Transmitters
US 08538262 B2, Sept. 17, 2013, Passive star, Rong Chen et al. / LG-Ericsson Co., Ltd. (Seoul, KR)
A Wavelength Division Multiplexed Passive Optical Network (WDM-PON) comprising:…

Passive Optical Networks With Mode Coupling Receivers
US 08515278 B2, Aug. 20, 2013, Mode, Ning Cheng et al. / Futurewei Technologies, Inc. (Plano, US)
An apparatus comprising:…

Optical PON Network Using Passive DPSK Demodulation
US 08478125 B2, July 2, 2013, Grating, Ernesto Ciaramella et al. / Telefonaktiebolaget L M Ericsson (publ) (Stockholm, SE
An optical network comprising:…

Optical Transmission and Reception System, and Optical Receiver
US 08483573 B2, July 9, 2013, Including polarization, Kohei Mandai et al. / Hitachi, Ltd. (Tokyo, JP)
An optical transmission and reception system comprising:…

Photonic Generator of Ultra-Wide Band Millimeter Wave
US 08483578 B2, July 9, 2013, Including specific optical elements, Tzi-hong Chiueh et al. / National Central University (Jhongli, Taoyuan, TW)
A photonic generator of ultra-wide band millimeter wave (MMW), comprising:…

Distortion Compensator, Optical Receiver, Distortion Compensator and Optical Receiver Controlling Methods, and Optical Transmission System
US 08447186 B2, May 21, 2013, Dispersion compensation, Takeshi Hoshida et al. / Fujitsu Limited (Kawasaki, JP)
A distortion compensator inputting an electric signal obtained by…

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