Patents
Patents for H04B 3 - Line transmission systems (31,523)
08/2013
08/14/2013CN103248400A Appliance management apparatus and appliance management method
08/14/2013CN103248399A Power line communication method and power line communication system
08/14/2013CN103248382A Analog front-end circuit of OFDM (Orthogonal Frequency Division Multiplexing) power line carrier communication receiver
08/14/2013CN103247165A Remote automatic measurement control system
08/14/2013CN102223160B Power line carrier communication transmitting circuit
08/14/2013CN101989376B Intelligent home control system
08/14/2013CN101908909B Far end crosstalk channel estimation method and device
08/14/2013CN101796732B Reception circuit, conversion table generating method of AD converter of the same and signal transmission system
08/14/2013CN101360580B A welding-type system with power source and remote device connected through a weld cable using binary phase shift keying for transmitting commands over the weld cable, method for controlling the power
08/13/2013US8509928 Method and apparatus for producing stationary intense wave fields of arbitrary shape
08/13/2013US8509775 Communication control apparatus determining terminal connection
08/13/2013US8509450 Dynamic audibility enhancement
08/13/2013US8509318 Multiple-channel transmission over a single-wire bus
08/13/2013US8509317 Method and related device for detecting signals in a TMDS transmission system
08/13/2013US8509295 Bit error rate prediction
08/13/2013US8509294 Signal generator, signal generating system, and signal generating method
08/13/2013US8509293 Semi-coherent timing propagation for GERAN multislot configurations
08/13/2013US8509288 Spatial multiplexing gain for a distributed cooperative communications system using randomized coding
08/13/2013US8509126 Method and system for utilizing a reserved and/or out of band channel for maintaining a network connection
08/13/2013US8509125 Method and apparatus for reducing nonlinear echo distortion in a communication device
08/13/2013US8509050 Cancellation of crosstalk energy in communication loops
08/13/2013US8508311 Transmission line and electrical apparatus using the same
08/08/2013WO2013113713A1 Transmitting electrical power and data
08/08/2013US20130202053 Communicating over power distribution media
08/08/2013US20130202018 Power line communcation method and power line communication system
08/08/2013US20130202016 Data transfer cable system and method
08/08/2013US20130200958 Laminate-type electronic device with filter and balun
08/08/2013US20130200689 Power line communication apparatus and method, and load power monitoring apparatus and method using same
08/07/2013EP2624469A1 Transmitting electrical power and data
08/07/2013EP2624468A1 Power line communication system and vehicle
08/07/2013EP2622834A1 Echo control optimization
08/07/2013EP2622755A1 Communication system and method for communicating between master and slave devices
08/07/2013EP2622754A1 Method and apparatus for controlling interference in dsl systems
08/07/2013CN103238298A Routing protocols for power line communications
08/07/2013CN103237001A Advanced Metering Infrastructure (AMI) system carrier communication module self-adaptive modulation and coding method
08/07/2013CN103236974A Dynamic routing algorithm for power line carrier metering
08/07/2013CN103236916A Dynamic compensation method for access network delay in SV (Sampled Value) networking of digitalized relay protection device
08/07/2013CN103236914A Synchronous signal generating method and device of power line carrier communication system
08/07/2013CN103236892A Carrier communication testing system
08/07/2013CN103236874A Power transmission device of OFDM (orthogonal frequency division multiplexing) power line carrier communication
08/07/2013CN103236873A System, equipment and method for converting optical fiber communication to power line communication
08/07/2013CN102132332B Arrangement and method for communicating audio and DC signals
08/07/2013CN102122970B Code length adaptive spread spectrum modulating method and equipment in power line carrier meter reading system
08/07/2013CN102118338B Power line carrier (PLC) communication method and device
08/07/2013CN102111242B Method for reducing narrowband noise interference in power line carrier communication
08/07/2013CN102075215B Automatic trunk networking method and device in power-line carrier communication
08/07/2013CN101803219B Echo removal device
08/07/2013CN101741425B Frequency spectrum optimization method, device and system
08/07/2013CN101729093B Method, system and device for adjusting power
08/07/2013CN101651471B Method for estimating crosstalk coefficient in digital subscriber line system and device thereof
08/07/2013CN101640551B Method, device and system for detecting radio frequency interference
08/07/2013CN101312361B Digital subscriber line parameter collecting method, module and circuit management system
08/06/2013US8503961 Active resistive summer for a transformer hybrid
08/06/2013US8503926 IQ imbalance compensation in interference cancellation repeater using a zero-IF radio architecture
08/06/2013US8503669 Integrated latency detection and echo cancellation
08/06/2013US8503517 System and method of an in-band modem for data communications over digital wireless communication networks
08/06/2013US8502651 Interactive touch screen gaming metaphors with haptic feedback
08/06/2013US8502618 Measurement and control of electromagnetic interference
08/06/2013CA2611576C Method and apparatus for communicating message signals in a load control system
08/06/2013CA2549918C Connector for communications systems having contact pin arrangement and compensation for improved performance
08/01/2013US20130195208 Power line communication system
08/01/2013US20130195150 Signal repeater and method for matching an output impedance of the signal repeater, which amplifies a signal on an electrical line of an electrical grid, to an impedance of a load
08/01/2013US20130195116 Method for communication in a hvdc power transmission system, controller unit and computer program product
08/01/2013US20130194935 Circuit testing arrangement for serialiser/deserialiser
07/2013
07/31/2013CN203104520U Intelligent main station system
07/31/2013CN203104460U Power line carrier communication simulation test system
07/31/2013CN203104443U Copy controller applied to power line carrier communication
07/31/2013CN203104442U Low-voltage power line carrier communication circuit
07/31/2013CN203104441U Carrier wave repeater
07/31/2013CN203104440U A loading transmission circuit of a VDSL signal transmitting on a direct voltage cable
07/31/2013CN203104438U Electric power carrier wave transmitting and receiving electric circuit
07/31/2013CN203104437U Power carrier transceiver circuit
07/31/2013CN203101894U Power line carrier-based apparatus for detection of student dormitory electricity consumption
07/31/2013CN103229426A Crosstalk emulator for XDSL cable
07/31/2013CN103229416A Common mode filter
07/31/2013CN103227665A Local side electric network bridge
07/31/2013CN103227664A Field sampling, isolation and power detection system of signal of low-voltage power line
07/31/2013CN103227663A Carrier wave communication method realizing power line carrier wave communication
07/31/2013CN103227662A Safety detection method and system of electric power communication equipment based on state control
07/31/2013CN103227507A Method and device for controlling radio load of power load management system
07/31/2013CN101944935B Self-adaptive adjustment system and method for carrier communication of low-voltage power line
07/31/2013CN101814964B Simulation system of carrier concentrator
07/30/2013US8498429 Acoustic correction apparatus, audio output apparatus, and acoustic correction method
07/30/2013US8498423 Device for and a method of processing audio signals
07/30/2013US8498344 Frequency responsive bus coding
07/30/2013US8497767 Magnetic levitation haptic interface system
07/25/2013WO2013109247A1 Rf remote control power cable antenna
07/25/2013WO2013108187A2 Ultra low standby power system for electronic devices
07/25/2013WO2013107968A2 System for communicating by means of high-frequency plc carrier currents over a driving line
07/25/2013US20130188799 Audio processing device and audio processing method
07/25/2013US20130188798 Reverberation reduction device and reverberation reduction method
07/25/2013US20130188670 Dynamic improvement of link symmetry in co-located plc and rf networks
07/25/2013US20130187445 Power over coaxial cable
07/24/2013EP2617150A1 Communication device using spatial diversity, communications system and method
07/24/2013EP2617138A1 Utility communication method and system
07/24/2013CN203086505U Power line bridge
07/24/2013CN203086470U Signal distribution system based on power carrier
07/24/2013CN203086469U Oilfield underground high-temperature special-purpose carrier
07/24/2013CN203086468U Single supply power line carrier module
07/24/2013CN203086467U Four-line system indoor machine off hook detection circuit
1 ... 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 ... 316