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