Patents
Patents for H04B 3 - Line transmission systems (31,523)
09/2010
09/15/2010CN201584966U System utilizing coaxial cable to transmit mixed signal
09/15/2010CN101836391A Communication apparatus, communication method and integrated circuit
09/15/2010CN101834829A Dynamic networking method and communication component
09/15/2010CN101834635A Relay optimizing method of low-voltage carrier networking
09/15/2010CN101834634A FSK (Frequency Shift Keying) and PSK (Phase Shift Keying) dual-mode multi-frequency power line carrier modulator-demodulator
09/15/2010CN101834633A Power line carrier wave meter based on tri-state impulse displacement phase modulation and communication method
09/15/2010CN101156315B Method and apparatus for reference symbol aided channel estimation
09/14/2010US7796942 System method for selecting repeaters
09/14/2010US7796767 Howling detection method, device, and acoustic device using the same
09/14/2010US7796680 Mobile communication system and wireless apparatus to be used for the same
09/14/2010US7795987 Methods of achieving linear capacitance in symmetrical and asymmetrical EMI filters with TVS
09/14/2010CA2532149C Multifunction utility pole
09/14/2010CA2363370C Single ended dmt test method for determining dsl capability of cables
09/10/2010WO2010101568A1 Dsl noise cancellation
09/10/2010WO2010100952A1 Power supply device
09/10/2010WO2010100951A1 Power supply device
09/10/2010WO2010100674A1 Equalizer circuit and testing apparatus using the same
09/10/2010CA2754351A1 Dsl noise cancellation
09/09/2010US20100226503 Echo canceller
09/09/2010US20100226446 Communication apparatus
09/09/2010US20100226418 Multicarrier Modulation Messaging for Power Level Per Subchannel Information
09/09/2010US20100226294 Full duplex network radio bridge with low latency and high throughput
09/09/2010US20100225162 Power mains transformer data bridge
09/09/2010US20100225161 Power mains distribution panel data link
09/09/2010DE19757198B4 Verfahren zum Funktionstest einer digitalen Koppelfeldbaugruppe A method for functional testing of a digital matrix assembly
09/09/2010DE102010006598A1 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
09/09/2010DE102009010918A1 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
09/08/2010CN101826972A Network signal processing device and signal processing method thereof
09/08/2010CN101826894A Intelligent community integrated interconnected system
09/08/2010CN101826893A Intelligent ammeter for carrier communication by utilizing power line and working method thereof
09/08/2010CN101826892A Echo cancelle
09/08/2010CN101826891A 增强回波消除 Enhanced echo canceller
09/08/2010CN101167248B Continuous-time equalizer, method and system for equalizing signal in transmission line
09/07/2010US7792280 Narrow band tone detection in echo canceling system
09/07/2010US7792255 Voice communications apparatus
09/07/2010US7792197 Method for transmitting data and data transmitter
09/07/2010US7792196 Single conductor bidirectional communication link
09/07/2010US7792186 Multi-pair gigabit ethernet transceiver having a single-state decision feedback equalizer
09/07/2010US7792183 Digital quality index for QAM digital signals
09/07/2010US7792181 Linearity evaluation method using integrations weighted by probability density function, and circuit simulator, evaluation device, communication circuit, and program using the method
09/07/2010US7792106 Audio/video network interface
09/07/2010US7791468 Power line communication system having time server
09/07/2010US7791457 Method and apparatus for an anti-theft system against radio relay attack in passive keyless entry/start systems
09/07/2010US7791456 Vibrator
09/07/2010US7791429 Equalizer and connector including the same
09/02/2010US20100220869 audio animation system
09/02/2010US20100220778 Frequency converting system
09/02/2010US20100220775 Multicarrier Modulation Messaging for SNR Per Subchannel During Showtime Information
09/02/2010US20100220773 Indicating and detecting the start of signal transmission employing frequency division multiplexing
09/02/2010US20100220769 Content reproduction apparatus, content receiving apparatus, method of reproducing content, program, and content reproduction system
09/02/2010US20100219943 Touch Sensitive Wearable Band Apparatus and Method
09/02/2010US20100219902 Electromagnetic interference mitigation system and method
09/01/2010EP2224628A1 Radio communication system, reception device, and reception method
09/01/2010EP2224605A2 Communications jack with compensation for differential to differential and differential to common mode crosstalk
09/01/2010EP1506650B1 Time delay estimation for equalisation
09/01/2010CN201571116U Device for realizing high-speed data transmission on petroleum well logging cable
09/01/2010CN201571055U Multichannel sound-amplification intercommunication system
09/01/2010CN201571054U Gas water heater communication system with self-supplied remote controller power supply
09/01/2010CN201571053U Automatic performance measuring device of power wire carrier communication channel
09/01/2010CN1855750B Anti-interfere mono-end signal transmitting method and device
09/01/2010CN101821998A Communication apparatus, communication method, circuit module and integrated circuit
09/01/2010CN101821958A Method for increasing the performance of communications system on medium formed by multiple conductors
09/01/2010CN101820303A Radiation noise test method applied to power line communication network
09/01/2010CN101820302A Device and method for canceling echo
09/01/2010CN101212596B Signal processing device, signal processing method and program
09/01/2010CN101159447B Method and equipment of reducing back wave
09/01/2010CN101119135B Step parameter regulation means and equipment for eliminating echo
08/2010
08/31/2010US7787641 Sound reproducing system for use with multiple rooms
08/31/2010US7787635 Dip filter frequency characteristic decision method
08/31/2010US7787543 Pulse pattern generator and communication device evaluation system utilizing the same
08/31/2010US7787530 Multi-channel adapative quality control loop for link rate adaptation in data packet communications
08/31/2010US7787460 System and method for switching packet traffic over an optical transport network
08/31/2010US7787459 Method and system for implementing traversal through network address translation
08/31/2010US7787408 Wireless repeater with master/slave configuration
08/31/2010US7786737 Modeling and calibrating a three-port time-domain reflectometry system
08/31/2010US7786621 Circuit arrangement and method for reducing electromagnetic interference
08/27/2010CA2665759A1 Data transmission system and method
08/26/2010WO2010094680A1 Apparatus and method for transferring data and energy via devices of a network
08/26/2010WO2010094107A1 Control of devices by way of power wiring
08/26/2010US20100217413 Multi-channel audio vibratory entertainment system
08/26/2010US20100215184 Method for Determining a Set of Filter Coefficients for an Acoustic Echo Compensator
08/26/2010US20100213759 Digital switch communication
08/26/2010DE102009010339A1 Proportionalregelventil für pneumatische Anwendungen Proportional control valve for pneumatic applications
08/26/2010CA2752866A1 Apparatus and method for transferring data and energy via devices of a network
08/25/2010EP2221983A1 Acoustic echo cancellation
08/25/2010EP2221209A1 Train communication system, communication device, and relay device
08/25/2010EP2220565A1 Method for transmitting data within a bus system and bus system
08/25/2010CN101816151A Communication device, its control method, communication system, data transmission system, communication device control program, and recording medium containing the program
08/25/2010CN101814964A Simulation system of carrier concentrator
08/25/2010CN101814935A Self-adaptive modulator in power line communication system
08/25/2010CN101814934A Communication device with echo cancellation function and method thereof
08/25/2010CN101814926A Signal transmission device and method
08/25/2010CN101072050B System for data transmission via metal pipeline
08/25/2010CN101072049B Metal pipeline data transmission coupler and its processing method
08/24/2010US7783732 Home adaptive transceiver for home networking communication system
08/24/2010US7783316 Public safety communications network using asymmetric receive/transmit channels
08/24/2010US7783058 System for verifying the identification of a device
08/24/2010US7782932 Circuit and method for evaluating the performance of an adaptive decision feedback equalizer-based serializer deserializer and serdes incorporating the same
08/24/2010US7782931 Methods, systems, and computer program products for automatic detection of an incorrect digital subscriber line modem and filter configuration at a customer premises
08/24/2010US7782314 Device and system for synchronizing image signals transmitted with superimposed signals
1 ... 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 ... 316