223936 ⎘
Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication; Receivers; Coherent receivers; Details of the electronic signal processing in coherent optical receivers Estimation of the phase of the received optical signal, phase error estimation or phase error correction
Complexity reduced feed forward carrier recovery methods for M-QAM modulation formats
#302Method and apparatus for transmitting and receiving coherent optical OFDM
#303Clock recovery for optical transmission systems
#304Joint carrier phase estimation and forward error correction
#305Carrier phase estimation filter length optimization
#306Frequency domain clock recovery
#307COHERENT OPTICAL RECEIVER AND CONTROL METHOD THEREOF
#308Method and apparatus for broadband carrier frequency and phase recovery in coherent optical system
#309Phase noise compensation in coherent optical communications systems
#310Feed-forward carrier phase recovery for optical communications
#311Method, system, and apparatus for carrier synchronization of QAM modulated signals
#312Apparatus for compensating optical signal impairments
#313Pilot symbol aided carrier phase estimation
#314Digital coherent receiver and digital coherent reception method
#315Optical receiver
#316Light receiving device and light receiving method
#317Iterative carrier phase compensation in coherent fiber optic receivers
#318Ultra wide-range frequency offset estimation for digital coherent optical receivers
#319Digital coherent detection of multi-carrier optical signal
#320Filter coefficient control apparatus and method
#321Method and System for Decoding Graph-Based Codes Using Message-Passing with Difference-Map Dynamics
#322Method and system for decoding graph-based codes using message-passing with difference-map dynamics
#323Secure multi-party computation of normalized sum-type functions
#324Method and device for phase recovery and communication system comprising such device
#325Digital coherent receiving apparatus
#326Digital coherent optical receiver
#327Coherent optical receiver
#328Optical transmission system
#329Phase error correction in a coherent receiver
#330Local oscillator frequency offset compensation in a coherent optical signal receiver
#331Dual stage carrier phase estimation in a coherent optical signal receiver
#332Adaptive polarization tracking and equalization in coherent optical receivers
#333Optical communication system and optical receiver
#334Delay processing apparatus, signal amplification apparatus, opto-electric conversion apparatus, analog-digital conversion apparatus, receiving apparatus, and receiving method
#335APPARATUS FOR SYNCHRONIZING DIGITAL SIGNALS OF COHERENT OPTICAL RECEIVER
#336OPTICAL ORTHOGONAL FREQUENCY DIVISION MULTIPLEXED COMMUNICATIONS WITH NONLINEARITY COMPENSATION
#337Electronic wavefront correction for free-space optical communications
#338Phase estimation for coherent optical detection
#339Digital clock and data recovery scheme
#340Adaptive non-linearity compensation in coherent receiver
#341Adaptive optimization method and apparatus for average length
#342Optical receiving apparatus and digital receiving circuit
#343Optical orthogonal frequency division multiplexed communications with nonlinearity compensation
#344Combined phase and polarization modulation for optical communication
#345Frequency offset compensating apparatus and method, and optical coherent receiver
#346Optical coherent receiver, frequency offset estimating apparatus and method for optical coherent receiver
#347Coherent optical receiver
#348Coherent light receiving system
#349Optical receiver
#350Digital phase estimator, digital phase locked loop and optical coherent receiver
#351Adaptive polarization tracking and equalization in coherent optical receivers
#352Frequency estimation in an intradyne optical receiver
#353Optical transceiver using heterodyne detection and a transmitted reference clock
#354Optical quadrature-amplitude modulation receiver
#355Coherent phase-shift-keying
#356Phase estimation for coherent optical detection
#357Optical frequency comb based coherent phase recovery simplification
#358Systems and methods for carrier phase recovery
#359Systems and methods for carrier phase recovery
#360Phase correction in high speed coherent optical communication
#361System and method for phase noise compensation in fibered optical paths
#362Apparatuses and methods of far-end transmitter skew monitoring in digital subcarrier multiplexing systems
#363Chromatic dispersion estimation method for coherent optical network
#364Systems and methods for phase compensation
#365Optical frequency comb based coherent phase recovery simplification
#366Systems and methods for carrier phase recovery
#367Apparatus and method for in-phase and quadrature skew calibration in a coherent transceiver
#368Monitoring and correcting I/Q imbalance in high-speed optical communications systems
#369Optical coherent receiver
#370Power-based encoding of data to be transmitted over an optical communication path
#371Mitigating interaction between adaptive equalization and timing recovery in multi-rate receiver
#372Clock recovery circuits, systems and implementation for increased optical channel density
#373Reduced complexity constrained frequency-domain block LMS adaptive equalization for coherent optical receivers
#374Coherent optical receiver testing
#375Method and apparatus for extending and measuring phase difference between signals
#376Integrated multi-channel receiver having independent clock recovery modules with enhanced inductors
#377Apparatus and methods for digital signal constellation transformation
#378Cycle slip compensation in coherent receiver
#379Systems and methods for autonomous signal modulation format identification
#380Cycle slip compensation in coherent receiver
#381Circuits and methods for data detection
#382Low cycle slip phase recovery for coherent receiver
#383Timing recovery for optical coherent receivers in the presence of polarization mode dispersion