Patents for H04B 3 - Line transmission systems (31,523) |
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09/15/2010 | CN201584966U System utilizing coaxial cable to transmit mixed signal |
09/15/2010 | CN101836391A Communication apparatus, communication method and integrated circuit |
09/15/2010 | CN101834829A Dynamic networking method and communication component |
09/15/2010 | CN101834635A Relay optimizing method of low-voltage carrier networking |
09/15/2010 | CN101834634A FSK (Frequency Shift Keying) and PSK (Phase Shift Keying) dual-mode multi-frequency power line carrier modulator-demodulator |
09/15/2010 | CN101834633A Power line carrier wave meter based on tri-state impulse displacement phase modulation and communication method |
09/15/2010 | CN101156315B Method and apparatus for reference symbol aided channel estimation |
09/14/2010 | US7796942 System method for selecting repeaters |
09/14/2010 | US7796767 Howling detection method, device, and acoustic device using the same |
09/14/2010 | US7796680 Mobile communication system and wireless apparatus to be used for the same |
09/14/2010 | US7795987 Methods of achieving linear capacitance in symmetrical and asymmetrical EMI filters with TVS |
09/14/2010 | CA2532149C Multifunction utility pole |
09/14/2010 | CA2363370C Single ended dmt test method for determining dsl capability of cables |
09/10/2010 | WO2010101568A1 Dsl noise cancellation |
09/10/2010 | WO2010100952A1 Power supply device |
09/10/2010 | WO2010100951A1 Power supply device |
09/10/2010 | WO2010100674A1 Equalizer circuit and testing apparatus using the same |
09/10/2010 | CA2754351A1 Dsl noise cancellation |
09/09/2010 | US20100226503 Echo canceller |
09/09/2010 | US20100226446 Communication apparatus |
09/09/2010 | US20100226418 Multicarrier Modulation Messaging for Power Level Per Subchannel Information |
09/09/2010 | US20100226294 Full duplex network radio bridge with low latency and high throughput |
09/09/2010 | US20100225162 Power mains transformer data bridge |
09/09/2010 | US20100225161 Power mains distribution panel data link |
09/09/2010 | DE19757198B4 Verfahren zum Funktionstest einer digitalen Koppelfeldbaugruppe A method for functional testing of a digital matrix assembly |
09/09/2010 | DE102010006598A1 Line termination device, has primary winding whose ends are attached to closed line, and power source attached to secondary winding and supplies alternating current with adjustable output frequency and output amplitude in secondary winding |
09/09/2010 | DE102009010918A1 Device for installing data transmission network over line, is fastened to support rail, where device comprises adapter and bell transformer, and support rail is cap rail, where line is current line |
09/08/2010 | CN101826972A Network signal processing device and signal processing method thereof |
09/08/2010 | CN101826894A Intelligent community integrated interconnected system |
09/08/2010 | CN101826893A Intelligent ammeter for carrier communication by utilizing power line and working method thereof |
09/08/2010 | CN101826892A Echo cancelle |
09/08/2010 | CN101826891A 增强回波消除 Enhanced echo canceller |
09/08/2010 | CN101167248B Continuous-time equalizer, method and system for equalizing signal in transmission line |
09/07/2010 | US7792280 Narrow band tone detection in echo canceling system |
09/07/2010 | US7792255 Voice communications apparatus |
09/07/2010 | US7792197 Method for transmitting data and data transmitter |
09/07/2010 | US7792196 Single conductor bidirectional communication link |
09/07/2010 | US7792186 Multi-pair gigabit ethernet transceiver having a single-state decision feedback equalizer |
09/07/2010 | US7792183 Digital quality index for QAM digital signals |
09/07/2010 | US7792181 Linearity evaluation method using integrations weighted by probability density function, and circuit simulator, evaluation device, communication circuit, and program using the method |
09/07/2010 | US7792106 Audio/video network interface |
09/07/2010 | US7791468 Power line communication system having time server |
09/07/2010 | US7791457 Method and apparatus for an anti-theft system against radio relay attack in passive keyless entry/start systems |
09/07/2010 | US7791456 Vibrator |
09/07/2010 | US7791429 Equalizer and connector including the same |
09/02/2010 | US20100220869 audio animation system |
09/02/2010 | US20100220778 Frequency converting system |
09/02/2010 | US20100220775 Multicarrier Modulation Messaging for SNR Per Subchannel During Showtime Information |
09/02/2010 | US20100220773 Indicating and detecting the start of signal transmission employing frequency division multiplexing |
09/02/2010 | US20100220769 Content reproduction apparatus, content receiving apparatus, method of reproducing content, program, and content reproduction system |
09/02/2010 | US20100219943 Touch Sensitive Wearable Band Apparatus and Method |
09/02/2010 | US20100219902 Electromagnetic interference mitigation system and method |
09/01/2010 | EP2224628A1 Radio communication system, reception device, and reception method |
09/01/2010 | EP2224605A2 Communications jack with compensation for differential to differential and differential to common mode crosstalk |
09/01/2010 | EP1506650B1 Time delay estimation for equalisation |
09/01/2010 | CN201571116U Device for realizing high-speed data transmission on petroleum well logging cable |
09/01/2010 | CN201571055U Multichannel sound-amplification intercommunication system |
09/01/2010 | CN201571054U Gas water heater communication system with self-supplied remote controller power supply |
09/01/2010 | CN201571053U Automatic performance measuring device of power wire carrier communication channel |
09/01/2010 | CN1855750B Anti-interfere mono-end signal transmitting method and device |
09/01/2010 | CN101821998A Communication apparatus, communication method, circuit module and integrated circuit |
09/01/2010 | CN101821958A Method for increasing the performance of communications system on medium formed by multiple conductors |
09/01/2010 | CN101820303A Radiation noise test method applied to power line communication network |
09/01/2010 | CN101820302A Device and method for canceling echo |
09/01/2010 | CN101212596B Signal processing device, signal processing method and program |
09/01/2010 | CN101159447B Method and equipment of reducing back wave |
09/01/2010 | CN101119135B Step parameter regulation means and equipment for eliminating echo |
08/31/2010 | US7787641 Sound reproducing system for use with multiple rooms |
08/31/2010 | US7787635 Dip filter frequency characteristic decision method |
08/31/2010 | US7787543 Pulse pattern generator and communication device evaluation system utilizing the same |
08/31/2010 | US7787530 Multi-channel adapative quality control loop for link rate adaptation in data packet communications |
08/31/2010 | US7787460 System and method for switching packet traffic over an optical transport network |
08/31/2010 | US7787459 Method and system for implementing traversal through network address translation |
08/31/2010 | US7787408 Wireless repeater with master/slave configuration |
08/31/2010 | US7786737 Modeling and calibrating a three-port time-domain reflectometry system |
08/31/2010 | US7786621 Circuit arrangement and method for reducing electromagnetic interference |
08/27/2010 | CA2665759A1 Data transmission system and method |
08/26/2010 | WO2010094680A1 Apparatus and method for transferring data and energy via devices of a network |
08/26/2010 | WO2010094107A1 Control of devices by way of power wiring |
08/26/2010 | US20100217413 Multi-channel audio vibratory entertainment system |
08/26/2010 | US20100215184 Method for Determining a Set of Filter Coefficients for an Acoustic Echo Compensator |
08/26/2010 | US20100213759 Digital switch communication |
08/26/2010 | DE102009010339A1 Proportionalregelventil für pneumatische Anwendungen Proportional control valve for pneumatic applications |
08/26/2010 | CA2752866A1 Apparatus and method for transferring data and energy via devices of a network |
08/25/2010 | EP2221983A1 Acoustic echo cancellation |
08/25/2010 | EP2221209A1 Train communication system, communication device, and relay device |
08/25/2010 | EP2220565A1 Method for transmitting data within a bus system and bus system |
08/25/2010 | CN101816151A Communication device, its control method, communication system, data transmission system, communication device control program, and recording medium containing the program |
08/25/2010 | CN101814964A Simulation system of carrier concentrator |
08/25/2010 | CN101814935A Self-adaptive modulator in power line communication system |
08/25/2010 | CN101814934A Communication device with echo cancellation function and method thereof |
08/25/2010 | CN101814926A Signal transmission device and method |
08/25/2010 | CN101072050B System for data transmission via metal pipeline |
08/25/2010 | CN101072049B Metal pipeline data transmission coupler and its processing method |
08/24/2010 | US7783732 Home adaptive transceiver for home networking communication system |
08/24/2010 | US7783316 Public safety communications network using asymmetric receive/transmit channels |
08/24/2010 | US7783058 System for verifying the identification of a device |
08/24/2010 | US7782932 Circuit and method for evaluating the performance of an adaptive decision feedback equalizer-based serializer deserializer and serdes incorporating the same |
08/24/2010 | US7782931 Methods, systems, and computer program products for automatic detection of an incorrect digital subscriber line modem and filter configuration at a customer premises |
08/24/2010 | US7782314 Device and system for synchronizing image signals transmitted with superimposed signals |