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Class Information
Number: 398/208
Name: Optical communications > Receiver > Including postcompensation
Description: Subject matter including means at a receiver location for reducing distortion caused earlier in an optical transmission system.










Sub-classes under this class:

Class Number Class Name Patents
398/210 Amplitude 161
398/209 Feedback 383
398/211 Intermodulation 48


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11

Patent Number Title Of Patent Date Issued
8712255 Optical receiver and optical transfer apparatus Apr. 29, 2014
8712254 Electronic dispersion compensation within optical communications using reconstruction Apr. 29, 2014
8705986 PMD-insensitive method of chromatic dispersion estimation for a coherent receiver Apr. 22, 2014
8705987 Signal processing circuit, signal processing method, optical receiver and optical communication system Apr. 22, 2014
8705984 Optical transmission apparatus and method for controlling variable optical attenuator Apr. 22, 2014
8705983 Radio frequency optical communication system Apr. 22, 2014
8705977 Equalizer tap correction and reseeding Apr. 22, 2014
8705957 Optical line terminal Apr. 22, 2014
8693898 Adaptive equalizer, optical receiver, and tap coefficient correcting method Apr. 8, 2014
8693897 Digital demodulator architecture Apr. 8, 2014
8693891 Optical modulation apparatus and optical modulation method Apr. 8, 2014
8693886 Optical transmission system Apr. 8, 2014
8687966 Fiber optic transceiver module with optical diagnostic data output Apr. 1, 2014
8687974 Skew compensation and tracking in communications systems Apr. 1, 2014
8687981 Method and system for split voltage domain transmitter circuits Apr. 1, 2014
8682182 Blind carrier frequency offset detection for coherent receivers using quadrature amplitude modulation formats Mar. 25, 2014
8682180 Interpolator for high-rate optical communications Mar. 25, 2014
8682174 Optical receiver, optical communication system using the same and equalization method in the optical communication system Mar. 25, 2014
8670678 Digital coherent receiver and digital coherent reception method Mar. 11, 2014
8670679 Coherent optical receiving apparatus and optical signal processing method Mar. 11, 2014
8670680 Optical receiver and optical receiving method Mar. 11, 2014
8666251 Electronic dispersion compensation system and method Mar. 4, 2014
8660440 Self-adaptive receivers not requiring FEC feedback Feb. 25, 2014
8660438 Digital coherent receiver and receiving method Feb. 25, 2014
8660437 Minimizing distortion due to wavelength dependent loss in WDM optical networks Feb. 25, 2014
8655133 Optical fiber and optical communication system including same Feb. 18, 2014
8655190 Wavelength division multiplexed optical communication system architectures Feb. 18, 2014
8655191 Symbol timing recovery in polarization division multiplexed coherent optical transmission system Feb. 18, 2014
8655193 Optical multi-level transmission system Feb. 18, 2014
8655194 Method for improving the performance of digital coherent optical receiver using single ended photo-detection Feb. 18, 2014
8649690 Optical communication reception system Feb. 11, 2014
8649689 Digital coherent receiving apparatus Feb. 11, 2014
8649691 Apparatus and method for detecting optical signals Feb. 11, 2014
8644715 Method and device for monitoring and controlling phase difference based on DQPSK modulation Feb. 4, 2014
8634727 Coherent optical receiver, apparatus and method for detecting interchannel skew in coherent optical receiver Jan. 21, 2014
8634726 Polarization and differential-group-delay insensitive digital timing error detection for polarization-multiplexed coherent optical systems Jan. 21, 2014
8634724 Power manageable optical OFDM transponder Jan. 21, 2014
8630551 Method and system for characterizing an optical device Jan. 14, 2014
8630552 Digital coherent receiver and receiving method Jan. 14, 2014
8626000 Coherent optical receiver, apparatus and method for detecting inter-channel skew in coherent optical receiver Jan. 7, 2014
8626001 Optical communication card and optical transmission device Jan. 7, 2014
8611764 Optical receiver module Dec. 17, 2013
8611763 Phase noise compensation in coherent optical communications systems Dec. 17, 2013
8611762 System and method for frequency-domain chromatic dispersion and polarization mode dispersion compensation with time-domain channel estimation Dec. 17, 2013
8606118 Optical digital coherent receiver Dec. 10, 2013
8606119 Optical channel monitor Dec. 10, 2013
8600243 Polarization mode dispersion compensation Dec. 3, 2013
8594515 Digital phase conjugation for fiber-optic links Nov. 26, 2013
8594512 Method and apparatus for transmission of two modulated signals via an optical channel Nov. 26, 2013
8594508 Optical transmission system Nov. 26, 2013

1 2 3 4 5 6 7 8 9 10 11










 
 
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