Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 3 - Line transmission systems
Patents for H04B 3 - Line transmission systems (31,523)
04/2012
04/10/2012US8154392 Apparatus that prepares and delivers intelligible information to the human brain by stimulating the sense of touch in intelligible patterns within an area of skin
04/10/2012US8154150 Power line communication system
04/10/2012CA2532639C Automotive gauge system using a power line carrier
04/05/2012WO2012044513A1 Method and apparatus for controlling interference in dsl systems
04/05/2012WO2012044462A1 Echo control optimization
04/05/2012WO2012044399A1 Communication system and method for communicating between master and slave devices
04/05/2012WO2012044386A1 Rail vehicle control communication system and method for communicating with a rail vehicle
04/05/2012WO2012042900A1 Power line communication system and vehicle
04/05/2012WO2012041425A1 Power line communication system using beamforming
04/05/2012WO2012041424A1 Wired communications system using beamforming and receiving communication device
04/05/2012WO2012021774A3 Systems and methods for downhole ofdm communications
04/05/2012WO2012003309A3 Communication on a pilot wire
04/05/2012WO2011110128A3 Detection device, communication system and detection method
04/05/2012US20120082245 Network baseband signal transmission apparatus using at least two coaxial cables
04/05/2012US20120081198 Waveform Shaping Device, Equalizer, Receiving System, Method Of Controlling Waveform Shaping Device, Control Program, And Computer-Readable Medium In Which Control Program Is Recorded
04/05/2012DE102011083930A1 Signalübertragungsanordnung mit einem Transformator und Signalübertragungsverfahren Signal transmission arrangement with a transformer and signal transmission method
04/04/2012EP2437179A1 Configuration of wireless communication via physical connection
04/04/2012EP2437074A2 Powerline modem device
04/04/2012EP2436564A1 Controller, in-vehicle device, system and method
04/04/2012EP2436123A1 Operating points for spectrum management in digital subscriber lines
04/04/2012EP2165487B1 Managing communications over a shared medium
04/04/2012EP2153595B1 Distributed scheduling
04/04/2012CN202183764U Cross-station area multi-path parallel power frequency communication substation dispensing device
04/04/2012CN202183763U 消防反馈信号传输装置 Fire signal transmitting means feedback
04/04/2012CN202183197U 网络双绞电缆拉力测试辅助教学装置 Network twisted pair cable pull test auxiliary teaching apparatus
04/04/2012CN102405012A Distributed sensing of signals linked by sparse filtering
04/04/2012CN102402851A 遥控器、接收器、以及声音遥控方法 Remote control receiver, and the remote control method of the sound
04/04/2012CN102401848A Electricity meter and communication relaying method for same
04/03/2012US8150409 Method of controlling data transmission in a wireless relay system, and the relay system implementing the method
04/03/2012US8150311 Communication system
04/03/2012US8150310 Setting method of communication parameters, communicating apparatus, control method of communicating apparatus, and program
04/03/2012US8150308 Intra-premises wireless broadband service using lumped and distributed wireless radiation from cable source input
04/03/2012US8150266 Method and apparatus for performing butterfly differential signaling
04/03/2012US8150058 Mode switching noise cancellation for microphone-speaker combinations used in two way audio communications
04/03/2012US8150057 Companion microphone system and method
04/03/2012US8150056 Audio signal transmitting apparatus, audio signal receiving apparatus, audio signal transmission system, audio signal transmission method, and program
04/03/2012US8150052 Integrating acoustic echo cancellation as a subsystem into an existing videoconference and telepresence system
04/03/2012US8149905 System and method for doppler frequency estimation
04/03/2012US8149757 Bandwidth efficient HARQ scheme in relay network
04/03/2012US8149752 Media-access-control protocol for a network employing multi-user wireless channels
04/03/2012US8149093 System and method for wireless communications
03/2012
03/29/2012WO2012040704A1 Systems and methods for facilitating power line communications
03/29/2012WO2012040476A1 Coupling circuits for power line communication devices
03/29/2012WO2012039119A1 Noise filter
03/29/2012WO2012038263A1 Asset inventory device
03/29/2012WO2012037821A1 Access system and method for transmitting ethernet signal and mobile communication signal
03/29/2012WO2012009366A3 Pilot structure for coherent modulation
03/29/2012WO2011148378A3 Automated Load Control System and Method
03/29/2012US20120076308 Acoustic echo suppression unit and conferencing front-end
03/29/2012US20120076211 Systems and Methods for Facilitating Power Line Communications
03/29/2012US20120076186 Communication system and communication apparatus
03/29/2012DE19945665B4 Einrichtung zum Anzeigen von Kabellänge und -qualität Means for displaying cable length and quality
03/28/2012EP2433373A1 Stand-by power mode for power line modem
03/28/2012EP1563614B1 Automated system and method for management of digital subscriber lines
03/28/2012CN202178763U 一种电力线载波收发电路 A power line carrier transceiver circuit
03/28/2012CN202178762U Cross area multipath parallel power frequency communication user terminal apparatus
03/28/2012CN202178761U 一种跨台区多路并行工频通信子站接收装置 A cross-Taiwan area multi-channel parallel-frequency communication sub-station receiver
03/28/2012CN1941649B Method and system for setting communication equipment
03/28/2012CN102396160A Method for estimating strength of crosstalk channel
03/28/2012CN102394802A Method and device for bus arbitration, converter and manufacturing installation
03/28/2012CN101461150B A system for carrying out signal distribution using indoor television cable
03/27/2012US8145181 Electric power transmission system for communications with noise elimination arrangement
03/27/2012US8145125 Emergency communications controller and console
03/27/2012US8144900 Speaker system
03/27/2012US8144893 Mobile microphone
03/27/2012US8144892 Audio amplification system
03/27/2012US8144792 Communication channel calibration for drift conditions
03/27/2012US8144757 System and method for estimating probabilities of events
03/27/2012US8144755 Method and apparatus for determining a skew
03/27/2012US8144652 System and method for multi-link communication in home network
03/27/2012US8144635 Reduced pin gigabit media independent interface
03/27/2012US8141947 Haptic seating system
03/22/2012WO2012035802A1 Transmission system and electronic equipment
03/22/2012WO2012035093A1 Utility communication method and system
03/22/2012WO2012034622A1 Communication device using spatial diversity, communications system and method
03/22/2012WO2011136591A3 Indoor direct current power system and power line communication method thereof
03/22/2012US20120072192 Systems and methods for loop length and bridged tap length determination of a transmission line
03/22/2012US20120070004 Digital Audio Distribution
03/22/2012DE102010040853A1 Verfahren und Vorrichtung zum Bestimmen einer Länge eines Leiterseils Method and apparatus for determining a length of a cable conductor
03/22/2012CA2810565A1 Utility communication method and system
03/21/2012EP2432134A1 Power and bidirectional data transmission
03/21/2012EP2432133A1 Utility communication method and system
03/21/2012EP2430771A1 Tone relay system and method
03/21/2012EP2430770A1 Noise suppression in a full-duplex audio communication terminal
03/21/2012EP2107692B1 Method, equipment and system for eliminating dsl crosstalk
03/21/2012EP1535451B1 Central base for private radiocommunication local network and radiocommunication system comprising the same
03/21/2012EP0983638B1 Orthogonal lms algorithms for fast line echo canceler training
03/21/2012CN202172404U 有源中继器 Active Repeater
03/21/2012CN202172403U 低压电力线载波通信模块 Low-voltage power line carrier communication module
03/21/2012CN1620764B Modem for communication through power line carrier system
03/21/2012CN1551191B Method and device used for recoding and reproducing digital information signal
03/21/2012CN102386947A 通讯装置及其方法 Communication device and method
03/21/2012CN102381261A Electric power line communication system for vehicle
03/21/2012CN101632183B Magnetic coupler element and magnetic coupling type isolator
03/21/2012CN101102168B Method for transmitting signals over wired transmission media via compressed bandwidth and its device
03/20/2012US8140006 Signal combining apparatus satisfying maximum transmission capacity in cellular system employing distributed antennas and resource allocation method using the same
03/20/2012US8139776 Wireless receiving apparatus and electronic appliance
03/20/2012US8139759 Line state detecting apparatus and transmitting apparatus and receiving apparatus of balanced transmission system
03/20/2012US8139695 Combined channel coding and space-block coding in a multi-antenna arrangement
03/20/2012US8139658 Method and system for providing a time equalizer for multiline transmission in communication systems
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