Patents
Patents for H04B 3 - Line transmission systems (31,523)
04/2011
04/12/2011CA2494500C Method for detecting echo path changes in echo cancellers
04/07/2011WO2011040036A1 Direct current power line communication system and direct current power line communication apparatus
04/07/2011WO2011039334A2 Method for the data transmission from an emitter to a receiver in an ac voltage network and data transmission device for ac voltage networks
04/07/2011WO2011018190A3 Dsl vectoring technology reuse
04/07/2011WO2011001430A3 Power line communication method and apparatus
04/07/2011US20110081856 Methods and Arrangements for Frequency Selective Repetition
04/07/2011US20110080273 Sensation Presenting System and Sensation Presenting Device
04/07/2011DE102004027367B4 Verfahren zum Übertragen von Leitungssignalen über eine Leitungseinrichtung und Übertragungsvorrichtung A method for transmitting signals via a cable conduit means and transfer device
04/06/2011EP2306658A1 Digital interface system to support Ethernet and cable connection state displaying method thereof
04/06/2011EP1556253B1 Feed line structure
04/06/2011CN201789502U Power line high-frequency channel
04/06/2011CN201789501U Narrowband carrier attenuation device applied to low-voltage centralized meter reading
04/06/2011CN102006701A Intelligent light-emitting diode (LED) power supply based on power line carrier communication (PLCC)
04/06/2011CN102006375A Method and device for processing asymmetrical digital subscriber line ports
04/06/2011CN102006129A FPGA (Field Programmable Gate Array)-based method and device for simulating power line channel
04/06/2011CN102006101A Power line carrier communication module
04/06/2011CN102006100A Transceiver in communication system and starting method thereof
04/06/2011CN102005820A Control and protective switch combining electric carrier wave and GPRS communication technique
04/06/2011CN101422089B Circuit module and power line communication apparatus
04/05/2011US7920933 Digital mixing system with double arrangement for fail safe
04/05/2011US7920697 Interaction between echo canceller and packet voice processing
04/05/2011US7920599 Methods and systems for synchronizing wireless transmission of data packets
04/05/2011US7920492 Devices, softwares and methods for redundantly encoding a data stream for network transmission with adjustable redundant-coding delay
04/05/2011US7920491 System and method for split isolation in radio frequency electronics
04/05/2011US7920010 Signal isolators using micro-transformers
04/05/2011CA2474817C High frequency network multiplexed communications over various lines using multiple modulated carrier frequencies
03/2011
03/31/2011WO2011036573A1 Method for pseudo-differential transmission using a non-uniform interconnection
03/31/2011WO2011036572A1 Method for transmission using a non-uniform interconnection
03/31/2011WO2011036490A1 Electrical isolators
03/31/2011WO2011036026A1 Method for reducing interferences between a first carrier current signal transmitted between modems of a power grid and a second signal transmitted between modems of another grid
03/31/2011WO2011035596A1 Method, system and device for filtering processing
03/31/2011US20110076938 Wireless communication apparatus and wireless communication method
03/31/2011US20110075856 Network System
03/31/2011US20110075835 Self adapting haptic device
03/31/2011US20110075741 Multimode ethernet line driver
03/31/2011US20110075740 Configurable Differential to Single Ended IO
03/31/2011US20110074573 Portable device with multiple modality interfaces
03/31/2011US20110074559 Mounting Apparatus For A Haptic Surface
03/30/2011EP2302818A1 Multi-band data transmission method
03/30/2011EP2302817A1 Transmission system
03/30/2011EP2302761A1 Powerline control system
03/30/2011EP2301216A2 Vectored dsl crosstalk cancellation
03/30/2011EP2301165A2 Intelligent power system and methods for its application
03/30/2011EP2301164A1 System for transmitting an electrical signal, in particular frequency-related and radiation measurement device equipped with such a system
03/30/2011EP2301163A1 Capacitive-coupled crosstalk cancelation
03/30/2011EP1290810B1 Sliced bandwidth distortion prediction
03/30/2011EP1022865B1 Echo canceller and echo cancelling method
03/30/2011CN201781503U Distribution network data acquisition communication adapter
03/30/2011CN201781501U Modem based on coaxial cable
03/30/2011CN201781491U Power modem with plastic fiber interface
03/30/2011CN201781486U High-isolation signal mixer
03/30/2011CN201780373U Active ultrasonic probe circuit for transmitting signals by using twin wire
03/30/2011CN1839557B System and method for receiving and processing signal received from multiple terminals
03/30/2011CN101997625A Wireless signal transmitter and related multimedia system
03/30/2011CN101997573A DSP controlled power line communication simulation front-end interface
03/30/2011CN101997572A Information processing apparatus, and signal transmission method
03/30/2011CN101997150A Wired transmission line for AV devices
03/29/2011US7916877 Modular interunit transmitter-receiver for a portable audio device
03/29/2011US7916778 Constructing an energy matrix of a radio signal
03/29/2011US7916776 Performance customization system and process for optimizing xDSL performance
03/29/2011US7916002 Haptic operative user interface input apparatus
03/29/2011CA2394491C Diagnostic methods and systems for multicarrier modems
03/24/2011WO2011033924A1 Echo removal device, echo removal method, and program for echo removal device
03/24/2011WO2011033217A1 Pre-filtering of a data signal transmitted between two communicating entities via a wire transmission channel
03/24/2011WO2011009584A3 Method and apparatus for vectored data communication
03/24/2011US20110069966 Optical transceiver with electrical dispersion equalization
03/24/2011US20110069766 Method of communicating with using electric power line for mobile body
03/24/2011US20110069746 Method to Detect Data Transmitted by Multiple Antennas
03/24/2011US20110069646 Intra-premises wireless broadband service using lumped and distributed wireless radiation from cable source input
03/23/2011EP2299705A1 Method and apparatus for automatic compensation of video signal losses from transmission over conductors
03/23/2011EP2299557A2 Power supply cooperation system and uninterruptible power supply device
03/23/2011EP2299366A1 Bus system and method for data communication
03/23/2011EP2297867A2 Robust wideband symbol and frame synchronizer for power-line communication
03/23/2011EP2297866A1 Blind channel quality estimator
03/23/2011EP2297865A1 Jammer canceller for power-line communication
03/23/2011EP2001136B1 A method and device for reducing surrounding coupled noise
03/23/2011CN101990032A Mobile electronic device with camera device and control method thereof
03/23/2011CN101989416A Display system
03/23/2011CN101989376A Intelligent home control system
03/23/2011CN101282189B Method, system and terminal for clock synchronization
03/22/2011US7912564 Digital mixing system with double arrangement for fail safe
03/22/2011US7912377 Visible light communication apparatus and visible light communication method
03/22/2011US7912234 Acoustic projector for propagating a low dispersion sound field
03/22/2011US7912227 Sound reproducing screen for an ultrasonic converting and reproducing method
03/22/2011US7912210 Inductive coupling for communications equipment interface circuitry
03/22/2011US7912117 Transport delay and jitter measurements
03/22/2011US7912116 Apparatus and method for transmitting data using relay station in a broadband wireless communication system
03/22/2011US7912092 Systems and methods for transmitting a transmission time interval signal with staggered reference signals
03/22/2011US7911328 Capture and remote reproduction of haptic events in synchronous association with the video and audio capture and reproduction of those events
03/22/2011US7911327 Vibration device and method of fabricating the same
03/22/2011US7911289 Filter with magnetic layer and manufacturing method thereof
03/22/2011US7911224 Signal transmitting device suited to fast signal transmission
03/22/2011US7911088 Method and apparatus for monitoring energy storage devices
03/22/2011CA2482208C Distance extender and method making use of same
03/17/2011WO2011031199A1 A method for estimating transmission properties of a telecommunications transmission line
03/17/2011WO2011030701A1 Equalization device, equalization method, and recording medium
03/17/2011WO2011030555A1 On-board communication device and vehicle using the same
03/17/2011US20110066406 Method for Generating Real-Time Haptic Response Information for a Haptic Simulating Device
03/17/2011US20110064123 Multi-pair gigabit ethernet transceiver
03/17/2011US20110063208 Method and system for conveying an emotion
1 ... 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 ... 316