Patents
Patents for H04B 3 - Line transmission systems (31,523)
03/2011
03/17/2011US20110063043 Waveform shaping circuit and optical switching device
03/17/2011DE102010036837A1 System for bi-directional communications has serializers/deserializers which are coupled by alternating current (AC) and direct current (DC) to communication medium to provide high and low frequency forward channels, respectively
03/16/2011EP2296291A2 Wireless transmission system and wireless transmission method
03/16/2011CN201766609U Digital home network system
03/16/2011CN201766589U Non-contact type information transmission circuit of electricity consumption information collection terminal
03/16/2011CN201766588U Household power line carrier communication device
03/16/2011CN201765690U Broadband power line carrier concentrator
03/16/2011CN1819493B Communication relay system, control method and information processing system
03/16/2011CN1747362B Transmission network with multiple operator access in same time
03/15/2011US7908617 Broadcast receiving system responsive to ambient conditions
03/15/2011US7907891 Physical layer repeater utilizing real time measurement metrics and adaptive antenna array to promote signal integrity and amplification
03/15/2011US7907890 Mobile communication system, transmitting station, receiving station, relay station, communication path determining method, and communication path determining program
03/15/2011US7907740 Electrostatic ultrasonic transducer drive control method, electrostatic ultrasonic transducer, ultrasonic speaker using the same, audio signal reproduction method, ultra-directional acoustic system, and display device
03/15/2011US7907661 Testability technique for phase interpolators
03/15/2011US7907637 Fast acquisition in mobile multimedia multicast systems
03/15/2011US7907636 Radio apparatus
03/10/2011WO2011026568A1 Method and system for data exchange between a vehicle and a server
03/10/2011US20110058594 Communication method and power line communication terminal
03/10/2011US20110058496 Voice-activity detection based on far-end and near-end statistics
03/10/2011DE102009038599A1 Method for measuring speech intelligibility in global system for mobile communication radio system in motor vehicle, involves deriving rapid speech transmission index value from speech transmission index value
03/09/2011EP2293595A1 Acoustic echo canceller and acoustic echo cancel method
03/09/2011EP2293508A1 Multi-carrier communication apparatus with adaptive transmission according to transmission path fluctuations
03/09/2011EP2293459A2 Systems and methods for characterizing transmission lines in a multi-carrier DSL environment
03/09/2011EP2291926A1 Power line communication system
03/09/2011EP2291925A1 Method and device for data processing and communication system comprising such device
03/09/2011EP1842297B1 Communication apparatus and communication method
03/09/2011EP1636917B1 Balanced transmitting apparatus
03/09/2011CN201758391U Power line carrier power amplifying and coupling device
03/09/2011CN201757708U CAN bus engine detecting system
03/08/2011US7904106 Method and apparatus of adaptively allocating transmission power for beamforming combined with orthogonal space-time block codes based on symbol error rate in distributed wireless communication system
03/08/2011US7903746 Calibrating parameters in a storage subsystem with wide ports
03/08/2011US7903726 Signal receiving apparatus and signal power prediction method thereof
03/08/2011US7903691 Method of generating pilot pattern for adaptive channel estimation in OFDMA systems, method of transmitting/receiving using the pilot pattern and apparatus thereof
03/08/2011US7902938 Data transmitter, data transmission line, and data transmission method
03/03/2011WO2011025934A2 Power line communications apparatus
03/03/2011WO2011025791A1 Relay system and method in a wireless communications system
03/03/2011WO2011023944A1 Ethernet over power
03/03/2011WO2011023526A1 Closed-circuit power line communication
03/03/2011US20110051924 Voice and data exchange over a packet based network with echo cancellation
03/03/2011US20110051820 Power line communications apparatus
03/03/2011US20110051819 System and method for transmitter electromagnetic interference (emi) reduction
03/03/2011US20110051799 Equalization apparatus
03/03/2011US20110050355 Emi suppressor having bandpass filtering function
03/03/2011DE102010030450A1 Rauscherfassungsverfahren, Rauscherfassungsvorrichtung, Simulationsverfahren, Simulationsvorrichtung und Kommunikationssystem Noise detection method, noise detection device simulation method, simulation apparatus and communication system
03/03/2011CA2772573A1 Power line communications apparatus
03/02/2011EP2290936A1 Method and device for quantifying a tone signal received in a telecommunications network
03/02/2011EP2290838A1 Remote communication ethernet system and relay
03/02/2011EP2290834A1 Closed-circuit power line communication
03/02/2011EP2289209A2 Signal suspension and resumption in dsl systems
03/02/2011EP2289190A2 Block interleaving scheme with configurable size to achieve time and frequency diversity
03/02/2011EP2120348B1 A determination method and corresponding device, as well as a configuration method and corresponding system for dsl reference virtual noise
03/02/2011EP1935112B1 Power supply apparatus and power line communication apparatus thereof
03/02/2011CN201754611U Elevator interphone with telephone function
03/02/2011CN1716798B Echo eliminating in communication network
03/02/2011CN101982939A Cable internally connected with microelectronic component
03/01/2011US7900066 Electronic device
03/01/2011US7899392 Relay system and method in a communication system
03/01/2011US7899195 Adaptive howling canceller
03/01/2011US7899194 Dual ear voice communication device
03/01/2011US7899193 Time aligned group audio reproduction in narrowband and broadband networks
03/01/2011US7898992 Network apparatus with shared coefficient update processor and method thereof
03/01/2011US7898412 Security system including genetic sampling device
03/01/2011US7898397 Selectively adjustable icons for assisting users of an electronic device
03/01/2011US7898396 Actuating a tactile sensation in response to a sensed event
03/01/2011CA2713618A1 Small form factor pluggable transceiver module-sdi
02/2011
02/24/2011WO2011022355A1 Adaptive integrated hybrid with complex adaptation for digital subscriber line systems
02/24/2011WO2011021927A1 System and method for communication between an electronic device and a computer
02/24/2011WO2011020817A1 Intelligent actuator
02/24/2011US20110045847 Digital content distribution system for delivering location specific content to an ad hoc group of mobile subscribers
02/24/2011US20110044469 Networked audio output device in an audio video distribution system
02/24/2011US20110044468 Networked audio input device in an audio video distribution system
02/24/2011US20110044467 Directed acoustic sound system
02/24/2011US20110044462 Signal enhancement device, method thereof, program, and recording medium
02/24/2011US20110044461 Apparatus and method for computing control information for an echo suppression filter and apparatus and method for computing a delay value
02/24/2011US20110044216 Systems, circuits and methods for an analog echo canceller with interpolating output
02/24/2011US20110043367 Intelligent notification appliance circuit and system
02/24/2011US20110043297 Dual function tuned l-c input trap passive emi filter component network for an active implantable medical device
02/23/2011EP2288238A2 Control of lighting devices over a modulated DC bus
02/23/2011EP2286574A1 Method and apparatus for reducing feedback overhead during crosstalk precoder initialization
02/23/2011EP2286519A1 Method and architecture for pairing guard band frequencies for effecting gsm, cdma, umts&wcdma services
02/23/2011EP2041884B1 Power line communication system
02/23/2011EP1869791B1 Power line communication apparatus and power line communication method
02/23/2011EP1797648B1 Suppressing echo cancelling in packet switched network
02/23/2011EP1354454B1 Adaptive filtering for wireless communication
02/23/2011CN1649374B Systems and methods for echo cancellation with arbitrary playback sampling rates
02/23/2011CN101982027A Electronic circuit board and power line communication device using the same
02/23/2011CN101980451A Time-interval-adaptation-based power line power frequency communication system and method
02/23/2011CN101980415A Method and system for implementing active uplink power line power-frequency communication
02/22/2011US7894537 Adaptive data alignment
02/22/2011US7894513 Slicing algorithm for multi-level modulation equalizing schemes
02/22/2011US7894421 Voice and data exchange over a packet based network
02/22/2011CA2294520C Transmission of fm video signals over various lines
02/17/2011WO2011018190A2 Dsl vectoring technology reuse
02/17/2011US20110038488 Wireless musical instrument network and wireless link modules
02/17/2011US20110038426 Transmission system and transmission method
02/17/2011US20110038425 Differential data transferring system and method using three level voltages
02/17/2011US20110038406 Method and digital communication device for receiving data using qam symbols
02/17/2011US20110038303 Method and apparatus for transmitting/receiving control channel
02/17/2011DE202004021786U1 Einrichtung zur Steuerung eines Systems aus Objekten über eine Kraftleitung und Adapter dieser Einrichtung Means for controlling a system of objects through a power line adapter and this institution
02/17/2011DE102009026256A1 Vorrichtung zur Übermittlung von Informationen über eine Stromleitung in einem Wechselspannungsstromnetz A device for transmitting information over a power line in an AC mains
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