Patents
Patents for H04B 3 - Line transmission systems (31,523)
05/2011
05/25/2011CN102077480A Capacitive-coupled crosstalk cancelation
05/25/2011CN102076143A Environment-protective illumination intelligent management system
05/25/2011CN102075216A System for isolating and coupling power line communication signals
05/25/2011CN102075215A Automatic trunk networking method and device in power-line carrier communication
05/25/2011CN102075214A Power-line carrier communication system, terminal and power control method
05/25/2011CN102075213A Brand-new distribution room identification technology based on characteristics of power lines
05/25/2011CN101461253B Vectored dsl system
05/25/2011CN101179635B Device, method and system for performing echo control to hand-free telephone
05/24/2011US7949360 Method and apparatus for adaptively allocating transmission power for beam-forming combined with OSTBCs in a distributed wireless communication system
05/24/2011US7949056 Balanced transmitting apparatus
05/24/2011US7949040 Reception quality measuring apparatus and reception quality measuring method
05/24/2011US7949039 Home network testing
05/24/2011US7948360 Write-protection module and method for storage device
05/19/2011WO2011016689A3 Apparatus and method for transmitting and receiving time broadcasting information using power line
05/19/2011US20110118888 System, Device and Method for Managing a Power Distribution Network
05/19/2011US20110116644 Simulated background noise enabled echo canceller
05/19/2011US20110116555 Power line communication methods and devices
05/19/2011US20110115754 Systems and Methods For A Friction Rotary Device For Haptic Feedback
05/19/2011US20110115709 Systems And Methods For Increasing Haptic Bandwidth In An Electronic Device
05/18/2011EP2323272A1 Processing method and transceiver for channel changing in joint transceiving mode
05/18/2011EP2321907A1 Systems and methods for impulse noise characterization
05/18/2011CN201839308U Homeplug with rotatable plug and socket device
05/18/2011CN201839283U Direct-current carrier communication circuit
05/18/2011CN201839282U Remote communication device for interval axis-counting system
05/18/2011CN1838761B Front equipment of set-top box for two-way communication
05/18/2011CN1756113B Bus system protective device
05/18/2011CN1606833B Coupling circuit arrangement for data communication over power lines
05/18/2011CN102067468A Method and architecture for pairing guard band frequencies for effecting GSM, CDMA, UMTS & WCDMA services
05/18/2011CN102067467A Method and device for data processing and communication system comprising such device
05/18/2011CN102065087A Intelligent self-reorganization communication protocol and communication mode conversion module
05/18/2011CN102064854A Power line carrier spread spectrum communication-based remote security monitoring system
05/18/2011CN102064850A Data transmission method based on low-voltage power line
05/18/2011CN101297497B Method, device and program product for estimating telecommunication transmission circuit property
05/18/2011CN101232307B Network cable / module connectivity testing device
05/18/2011CN101179295B Echo canceller and communication audio processing apparatus
05/18/2011CN101147330B Communications connector for imparting crosstalk compensation between conductors
05/17/2011US7945656 Method for determining round trip times for devices with ICMP echo disable
05/17/2011US7945358 System and method for testing the integrity of a vehicle testing/diagnostic system
05/17/2011US7945296 Module for exchanging information by carrier-currents comprising activated and deactivated states
05/17/2011US7944978 High bandwidth data transport system
05/17/2011US7944962 Method and apparatus for transmission of command combinations by means of coded frequency-shift keying
05/17/2011US7944343 System and method for providing information in a vehicle
05/17/2011US7941918 Method for electrically connecting a stinger into a network node
05/12/2011WO2011056434A2 Outdoor unit installation and feature
05/12/2011WO2011056233A2 High speed communication
05/12/2011US20110110526 Acoustic echo canceller and acoustic echo cancellation method
05/12/2011US20110110412 Transmitter-only ic chip having external loopback test function and external loopback test method using the same
05/12/2011US20110109588 Tactile stimulation apparatus having a composite section comprising a semiconducting material
05/12/2011US20110109423 Systems and Methods for Minimal Haptic Implementation
05/12/2011US20110109320 System, method, and apparatus for a safe powerline communications instrumentation front-end
05/12/2011DE102009042330A1 Device for automated recognition of power theft in house, has recording unit recording reading of meters and evaluation unit producing alarm message to power supplier, during detection of failure-power quantity or power capacity
05/11/2011EP1938468B1 Method for controlling a cable-controlled home automation appliance provided with an electric motor
05/11/2011EP1733483B1 Communication channel capacity estimation
05/11/2011EP1719260B1 Digital echo canceller
05/11/2011EP0969692B1 Device and method for processing speech
05/11/2011CN201830516U Control circuit of light emitting diode (LED) street lamp capable of being regulated and controlled remotely based on electric carrier communication
05/11/2011CN1937852B Audio playing system and audio playing control method
05/11/2011CN1918870B Method and apparatus to reduce crosstalk in a mimo communication system
05/11/2011CN102057662A Method for reducing a disturbance in an input signal caused by an output signal in a multi-port connector, multi-port connector, and mobile device
05/11/2011CN102055492A Carrier frequency signal output circuit of electric carrier transceiver
05/11/2011CN101394376B Isolation transmitter for field bus
05/11/2011CN101202562B Cable modem and gain adjustment method thereof
05/11/2011CN101163178B Echo counteracting method and system in wireless communication system
05/10/2011US7940938 Sound reproducing apparatus
05/10/2011US7940846 Test circuit for serial link receiver
05/10/2011US7940839 Fully adaptive equalization for high loss communications channels
05/10/2011US7940838 Distortion characterization system
05/10/2011US7940686 Network performance tuner
05/10/2011CA2614427C Method and apparatus for recognizing a change-of-state in communication signals of electronic circuits
05/05/2011WO2011053212A2 An arrangement and method relating to analysis of transmission lines
05/05/2011WO2011053207A1 Single ended estimation of far-end crosstalk in a digital subscriber line
05/05/2011WO2011050902A1 Device for use in a power line communication system, power line communication systems and power line communication method
05/05/2011WO2011050863A1 Method and arrangement in a telecommunication system for estimating frequency dependent resistance
05/05/2011US20110105178 Exercise mat with integrated audio
05/05/2011US20110105016 Relay station in mobile communication system, mobile station, and relay transmission method
05/05/2011US20110103447 Method and Device for Testing a Mobile Station's Capability of Processing at Least One Second Channel and Communication System Comprising Such Device
05/05/2011US20110103443 Systems and methods for establishing a diagnostic transmission mode and communicating over the same
05/05/2011US20110103274 Signal repeater system arrangement for stable data communication
05/05/2011US20110102332 Method for Haptic Display of Data Features
05/05/2011US20110102160 Systems And Methods For Haptic Augmentation Of Voice-To-Text Conversion
05/05/2011DE202011003115U1 Prüfanschlussvorrichtung für eine Datenbuchse Prüfanschlussvorrichtung for a data jack
05/05/2011DE102007046636B4 Verfahren und Vorrichtung zur Übertragung von Audiosignalen zu den Sendedioden einer Audiosignalinfrarotsendeeinheit Method and apparatus for transmitting audio signals to the transmitter diodes of an audio signal infrared transmitter unit
05/04/2011EP2317684A2 System and methods for establishing a diagnostic transmission mode and communication over the same
05/04/2011EP2316226A1 Reliable, long-haul data communications over power lines for meter reading and other communications services
05/04/2011EP1721420B1 Method and communication system for the transmission of data in a motor vehicle
05/04/2011EP0972355B1 Method and apparatus for controlling echo on both sides of a connection
05/04/2011CN201821346U Intelligent communication module
05/04/2011CN201821345U System using ground wires for data transmission
05/04/2011CN201820327U 电缆防盗系统 Cable theft system
05/04/2011CN102047689A Acoustic echo canceller and acoustic echo cancel method
05/04/2011CN102047577A Method and device for SNR measurement
05/04/2011CN102045088A Low-voltage power line narrowband carrier communication routing method
05/04/2011CN102045087A Simplified alternating current grid communication system
05/04/2011CN102045086A Power line carrier wave communication method based on ARM7 and ST7538
05/04/2011CN101237255B Method for reducing the uplink intrusion noise of cable data system
05/04/2011CN101106596B Electronic device and its user circuit plate fin
05/04/2011CN101047459B Method for dynamic managing xDSL specturm and its device
05/03/2011US7936851 Channel equalization
05/03/2011US7936840 Demodulator for a multi-pair gigabit transceiver
05/03/2011US7936830 Active rectifier with load impedance switching
1 ... 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 ... 316