Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 3 - Line transmission systems
Patents for H04B 3 - Line transmission systems (31,523)
09/2012
09/26/2012EP2503720A1 Spiral-shaped interpolation of coupling coefficients
09/26/2012EP2503704A1 Method and apparatus for equalization and crosstalk mitigation
09/26/2012EP2502354A2 Electrical installation system
09/26/2012CN202454051U Low-voltage power line spread spectrum carrier communication monitoring system for coal mine safety
09/26/2012CN102694578A Signal generator for anti-disclosure blocking of power wires and signal synthesizing method thereof
09/26/2012CN102693621A Power line carrier meter reading system
09/26/2012CN101801713B Train communication system, communication device, and relay device
09/26/2012CN101375518B System, device and method
09/26/2012CN101355600B Noise suppression system, sound acquisition apparatus, sound output apparatus and computer-readable medium
09/26/2012CN101283594B Communicating over coaxial cable networks
09/26/2012CN101283520B Signal receiving apparatus including equalizer, terminal apparatus, and signal receiving method
09/25/2012US8275308 Method for relaying between a base station and a mobile station
09/25/2012US8275144 Intelligent audio speakers
09/25/2012US8275142 Acoustic echo cancellation system
09/25/2012US8275139 Linear full duplex system and method for acoustic echo cancellation
09/25/2012CA2745847C A multimode multicarrier modem system and method of communication over the same
09/22/2012CA2771832A1 Network interface controller for a utility meter
09/20/2012WO2012125231A1 Apparatus and method for echo suppression
09/20/2012WO2012125230A1 Apparatus and method for convergence control of acoustic echo cancelling
09/20/2012WO2012123990A1 Terminal circuit, semiconductor device, and testing system
09/20/2012US20120239392 Sound processing with increased noise suppression
09/20/2012US20120237054 Method and apparatus for reproducing multi-channel sound using cable/wireless device
09/20/2012US20120237053 Multi-Protocol Wireless Audio Client Device
09/20/2012US20120237047 Nonlinear reference signal processing for echo suppression
09/20/2012US20120236875 Slotted Channel Access Techniques in Network Communications
09/20/2012US20120236845 Voice and Data Exchange Over a Packet Based Network
09/20/2012US20120236758 Hybrid networking simple-connect setup using forwarding device
09/20/2012US20120235763 Equalizer and equalizing method
09/20/2012DE102012203662A1 Empfänger und Sender/Empfänger-System The receiver and transmitter / receiver system
09/20/2012DE102010039716B4 Verfahren zur Übertragung eines Nutzsignals Method for the transmission of a useful signal
09/19/2012EP2501052A1 Power line communications systems
09/19/2012CN202444485U Power line network device
09/19/2012CN102687436A Communications system using beamforming
09/19/2012CN102687408A Method for robust crosstalk precoder training in channels with impulse noise
09/19/2012CN102685970A Dimming device transmitting control signal with alternating power line
09/19/2012CN102685054A OFDM (orthogonal frequency division multiplexing)-based broadband digitized signal and power-supply composite cable transmission system
09/19/2012CN102684746A Method and device for adjusting transmission characteristics of carrier narrow-band signal of power line
09/19/2012CN102684745A Method and device for securing and blocking power line information
09/19/2012CN102684744A Power supply self-synchronizing phase inversion modulator-demodulator for power line communication
09/19/2012CN102684743A Low-power-consumption dormancy activation communication power saving method for electric transmission lines
09/19/2012CN102684742A Method for diagnosing network link
09/19/2012CN102684741A Underwater communication device and method
09/19/2012CN102684314A Method for transmitting data in inductive power supply with high power
09/19/2012CN102677699A Two-wire manhole cover connector
09/19/2012CN101873676B GSM (Global System for Mobile) micropower distribution system
09/19/2012CN101604677B Method and device for return loss techniques in wirebond packages for high-speed data communications
09/19/2012CN101232306B Crosstalk test approach of second generation ultra-high speed numeral user loop switch-in user
09/19/2012CN101022290B Electric communication network
09/18/2012US8271852 Data recovery scheme
09/18/2012US8271277 Dereverberation apparatus, dereverberation method, dereverberation program, and recording medium
09/18/2012US8270897 Communication control method and radio base station and radio terminal
09/18/2012US8270630 Automatic and dynamic noise cancellation for microphone-speaker combinations
09/18/2012US8270499 Receiver with balanced I/Q transformer
09/18/2012US8270460 Filter for identifying signal artifacts in bandwidth-limited instruments
09/18/2012US8270459 Standalone testing of a receiver
09/18/2012US8270458 Tunable filter for tone detection
09/18/2012US8270430 Local area network of serial intelligent cells
09/18/2012US8270393 Method for shaping spectrum of output signal, and a remote access device
09/18/2012US8270323 Apparatus for, and method of, reducing noise in a communications system
09/18/2012US8269614 Vibratory assembly for a vehicle
09/18/2012US8269573 Cable strand for activating ejection valves
09/13/2012WO2012122158A1 Systems and methods of data transmission and management
09/13/2012WO2012120945A1 Power line communication system, connector device, and power line communication device
09/13/2012WO2012120906A1 Power line communication device, power line communication system, power line communication method, and power line communication program
09/13/2012WO2012119651A1 Coupling arrangement
09/13/2012WO2012119382A1 Method and device for analysing crosstalk of lines
09/13/2012US20120233459 System and Method for Content Protection on a Computing Device
09/13/2012US20120230495 Silence Based Attenuation for Enhanced Idle-Channel FM or Other Receiver Co-Existence with a Coexisting Radio and Circuits, Processes, and Systems
09/13/2012US20120230476 Multicarrier Modulation Messaging for Power Level Per Subchannel Information
09/13/2012US20120230474 Performance Testing of Echo Cancellers Using a White Noise Test Signal
09/13/2012US20120230387 Carrier current communication system with infrared receiver
09/13/2012US20120228927 Communication system and communication terminal
09/12/2012EP2498408A1 Assembly, device and method
09/12/2012EP2498257A1 Skew management in an interconnection system
09/12/2012EP2497192A1 Method for determining notching parameters in a plc system and plc system
09/12/2012CN202435412U Noise signal imitation system for low-voltage power line carrier test
09/12/2012CN202435399U Miniature wave trap
09/12/2012CN202435398U Novel local end power network bridge
09/12/2012CN202435397U Power line carrier communication device
09/12/2012CN202435396U RS485 (recommended standard 485) communication circuit
09/12/2012CN202427293U FFU group control system based on wireless and power line carrier communication technologies
09/12/2012CN102668395A Method for the data transmission from an emitter to a receiver in an ac voltage network and data transmission device for ac voltage networks
09/12/2012CN102668394A 高速通信 High-speed communication
09/12/2012CN102668393A Single ended estimation of far-end crosstalk in a digital subscriber line
09/12/2012CN102665360A Household light-emitting diode (LED) illuminating centralized control system based on power carrier and wireless communication
09/11/2012US8266480 Physical coding sublayer for a multi-pair gigabit transceiver
09/11/2012US8265630 Antenna adaptation to manage the active set to manipulate soft hand-off regions
09/11/2012US8265547 Resource management and interference mitigation techniques for relay-based wireless netoworks
09/11/2012US8265546 Gain adjustment stepping control in a wireless repeater
09/11/2012US8265293 Audio signal output method and apparatus for short-range communication enabled headset
09/11/2012US8265290 Dereverberation system and dereverberation method
09/11/2012US8265289 Method and system for clear signal capture
09/11/2012US8265263 Delayed adaptation structure for improved double-talk immunity in echo cancellation devices
09/11/2012US8265174 Method and apparatus for detection of load impedance modulation in a transformer circuit
09/11/2012US8265128 Multiple-input multiple-output (MIMO) with relay nodes
09/11/2012US8264320 Aftermarket keyless starter
09/07/2012WO2012118810A2 Simultaneous detection of communications signals on all phases of a multi-phase power distribution network
09/07/2012WO2012117371A1 Method and device for coupling a dc supply line to a telephone line or coaxial cable
09/07/2012WO2012116721A1 Hearing aid and a method of driving an output stage
09/07/2012CA2828342A1 Simultaneous detection of communications signals on all phases of a multi-phase power distribution network
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