Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 3 - Line transmission systems
Patents for H04B 3 - Line transmission systems (31,523)
09/2012
09/07/2012CA2828266A1 Hearing aid and a method of driving an output stage
09/07/2012CA2828137A1 Method and device for coupling a dc supply line to a telephone line or coaxial cable
09/06/2012US20120225624 Over-the-Air Test
09/06/2012US20120224713 Wireless audio transmission system, particularly a wireless microphone system
09/06/2012US20120224712 Receiving device, transmitting device, receiving method, transmitting method, and communication system
09/06/2012US20120224711 Method and apparatus for grouping client devices based on context similarity
09/06/2012US20120224708 Information processing apparatus, auxiliary device therefor, information processing system, control method therefor, and control program
09/06/2012US20120224661 Digital Equalization Process and Mechanism
09/06/2012US20120224645 Device for Modifying an AC Voltage, AC Voltage Having a Superimposed Data Signal, Method for Data Transmission, Use of a Receiver and Communication Architecture
09/06/2012US20120223824 Linear vibrator providing localized haptic feedback
09/06/2012US20120223823 Systems and Methods for Sensory Feedback
09/06/2012US20120223282 In Line Signal Repeaters for Transmission Line Based Electric Fences
09/06/2012CA2770166A1 Systems and methods of data transmission and management
09/05/2012EP2494702A1 Device for use in a power line communication system, power line communication systems and power line communication method
09/05/2012EP2494701A1 Method and arrangement in a telecommunication system for estimating frequency dependent resistance
09/05/2012EP2494700A1 Single ended estimation of far-end crosstalk in a digital subscriber line
09/05/2012CN202424718U Low voltage power line carrier isolator
09/05/2012CN202424717U Wideband coupling circuit
09/05/2012CN202424716U Underground communication device based on power carrier
09/05/2012CN202424625U Power amplifying circuit in multi-carrier communication system of power line
09/05/2012CN202422405U Power line carrier centralized meter reading system based on electric network topology for low-voltage users
09/05/2012CN1868137B Echo canceler
09/05/2012CN102656813A Crosstalk control method and apparatus using a bandwidth-adaptive precoder interface
09/05/2012CN102655423A Electric communication device with wave trapper
09/05/2012CN102655422A Test system for low-voltage power carrier communication equipment
09/05/2012CN101937042B System for detecting connectivity of bank cable and method thereof
09/05/2012CN101834635B Relay optimizing method of low-voltage carrier networking
09/05/2012CN101656555B ADSL2+ access system and velocity pre-estimating method thereof
09/05/2012CN101527585B Device for achieving electric power system data self-adapting compression and method thereof
09/05/2012CN101471735B Device for monitoring differential signal fault
09/05/2012CN101471698B RS485 bus system containing power supply module
09/05/2012CN101453246B Crosstalk inhibition method for wideband wired access network digital subscriber line
09/05/2012CN101346896B Echo suppressing method and device
09/05/2012CN101317332B Digital communication system, indoor device, and outdoor device
09/05/2012CN101199135B 电力线通信系统 Power Line Communication Systems
09/05/2012CN101145803B A method and device for separating echo reflection
09/04/2012US8259957 Communication devices
09/04/2012US8259821 xDSL multistandard driver circuit
09/04/2012US8259787 High-speed decoder for a multi-pair gigabit transceiver
09/04/2012US8259629 System and method for transmitting and receiving wideband speech signals with a synthesized signal
09/04/2012US8258890 Methods of achieving linear capacitance in symmetrcial and asymmetrical EMI filters with TVS
09/04/2012US8258649 Communicating over power distribution media
09/04/2012CA2756443C System and method for proactive repeat transmission of data over an unreliable transmission medium
08/2012
08/30/2012WO2012115676A1 A set of sensor units for communication enabled for streaming media delivery with monitoring and control of power usage of connected appliances
08/30/2012WO2012114838A1 Power line communication system
08/30/2012WO2012114044A2 Method for grouping stations together in order to optimize the broadcast of a broadcast/multicast stream
08/30/2012WO2012113743A1 Method and system for crosstalk cancellation in a multi-user access network
08/30/2012WO2012113316A1 Method, device and system for processing signal based on twisted-pair cable
08/30/2012WO2012026353A9 Transmitter apparatus, receiver apparatus, and communication system
08/30/2012US20120221329 Speech enhancement method and system
08/30/2012US20120220843 Signal processing apparatus
08/30/2012US20120219075 Simultaneous Detection of Communications Signals on All Phases of a Multi-phase Power Distribution Network
08/30/2012US20120219074 Data transmission system based on a power line
08/30/2012US20120218050 Power supply cable for power line communication equipment
08/29/2012EP2493085A1 Coexistence in communication system
08/29/2012EP2493084A1 Method and system for crosstalk cancellation in a multi-user access network
08/29/2012EP2491660A1 System for communicating over a power cable
08/29/2012CN202406109U Communication device based on low voltage power line
08/29/2012CN202406108U Narrow-band high-speed communication system based on low-voltage power line carrier
08/29/2012CN202406107U Repeater
08/29/2012CN102651658A Power line carrier communication terminal device
08/29/2012CN102651657A Data transmission system based on power line
08/29/2012CN102651656A Signal processing method, device and system based on twisted pairs
08/29/2012CN101359932B DSL circuit driving device, method and access system
08/29/2012CN101322324B Method and apparatus for testing longitudinal balance degree of link
08/29/2012CN101312360B Filtering method and apparatus thereof, and crosstalk counteracting method and system thereof
08/29/2012CN101213764B Echo canceller
08/28/2012US8255967 Method and apparatus for high speed data services
08/28/2012US8254830 Data transmission system for forwarding data using a plurality of antennas
08/28/2012US8254596 Method and apparatus for mute control
08/28/2012US8254588 System and method for providing step size control for subband affine projection filters for echo cancellation applications
08/28/2012US8254506 Adaptive electronic transmission signal cancellation apparatus for full duplex communication
08/28/2012US8254471 Far-end crosstalk canceling method and device, and signal processing system
08/28/2012US8254434 OFDM wireless mobile communication system and method for estimating SNR of channel thereof
08/28/2012US8254404 Gateway with voice
08/28/2012US8253863 Display unit for transmitting/receiving analog video transmitted via a long-distance transmission line
08/28/2012US8253703 Elastomeric wave tactile interface
08/28/2012US8253509 Printed circuit board
08/23/2012WO2012112806A1 Electromagnetic e-shaped patch antenna repeater with high isolation
08/23/2012WO2012111003A1 System for coupling a power line communication device to a power line network
08/23/2012WO2012109962A1 Signal processing method, device and system for bonded digital subscriber line channel
08/23/2012WO2012109856A1 Signal processing method, device and system
08/23/2012WO2012109853A1 Method and device for eliminating far-end crosstalk by precoding
08/23/2012US20120213383 Automatic resource retrieval and use
08/23/2012US20120213382 Loudspeaker amplifier integration system
08/23/2012US20120213264 Channel estimating method and device
08/23/2012US20120213061 Cognitive relay techniques
08/23/2012US20120212340 Method and apparatus for providing communications with haptic cues
08/22/2012EP2490430A2 Signal processing method, device, and system of bonded digital subscriber line channels
08/22/2012EP2489134A1 Method and device for detecting the presence of a modulated signal on a medium
08/22/2012EP2489133A2 Method and apparatus for vectored data transmission
08/22/2012EP1706929B1 Method and apparatus for monitoring energy storage devices
08/22/2012CN202396037U Smart lighting system based on power line carrier communication technology
08/22/2012CN202395767U Novel intelligent power communication device
08/22/2012CN202395766U Electric power telecommunication system for remotely transmitting Ethernet data by using SDH (Synchronous Digital Hierarchy)
08/22/2012CN202394363U Humiture monitoring system for communicating by using power line carrier and radio
08/22/2012CN102648587A Power line communication device, power supply circuit with communication function, electrical appliance, and control-monitoring system
08/22/2012CN102647459A Unified remote control device for internet of thing terminal equipment
08/22/2012CN102647207A Communications on power systems
08/22/2012CN102647206A Carrier communication system with contact systems
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