Patents
Patents for H04B 3 - Line transmission systems (31,523)
11/2006
11/23/2006US20060262715 Disturbing signal detection device and ofdm reception device using the same
11/23/2006CA2547434A1 Method for remotely determining and managing connection of tractor and trailer
11/22/2006EP1725034A2 UWB transmission system
11/22/2006EP1723733A2 Coupling circuit for a carrier current data transmission system interface
11/22/2006EP1163770A4 Digital wireless phone/modem jack capable of communications over the power lines using differential binary phase shift keying (dbpsk)
11/22/2006CN1868140A 中继放大器 Repeater
11/22/2006CN1868139A Method for geometrical harmonic modulation
11/22/2006CN1868138A System for data collection through an alternate current supply network
11/22/2006CN1868137A Echo canceler
11/22/2006CN1868136A Echo canceller
11/22/2006CN1867879A LAN (local area network) with integrated energy and information transmission over the same line
11/22/2006CN1867060A UWB transmission system
11/22/2006CN1866772A 信息处理系统以及信息处理方法 The information processing system and an information processing method
11/22/2006CN1866769A Synchronous transmitter for X-10 signal
11/22/2006CN1866768A X-10 signal transmitter
11/22/2006CN1286277C Communication method between kernel processor and micro-engine in network processor
11/22/2006CN1286258C 电源线传输装置 Power line transmission device
11/21/2006US7139312 System and method for improving coding gain performance within gigabit phy viterbi decoder
11/21/2006US7138821 Digital filter circuit and method for blocking a transmission line reflection signal
11/16/2006WO2006121545A2 Systems and methods for facsimile echo cancellation
11/16/2006WO2006120510A1 Phantom use in dsl systems
11/16/2006WO2006078730A3 Communication system with low power, dc-balanced serial link
11/16/2006WO2006065340A3 Arrangement of daisy chained inductive couplers for data communication
11/16/2006US20060256974 Tracking talkers using virtual broadside scan and directed beams
11/16/2006US20060256880 Automatic skew correction for differential signals
11/16/2006US20060256744 Bi-directional bridge circuit having high common mode rejection and high input sensitivity
11/16/2006US20060255920 Annunciating device for vehicle
11/16/2006DE19528972B4 Serielle digitale Signalquelle mit einem Kabeldämpfungssimulator Serial digital signal source with a cable loss simulator
11/16/2006CA2607488A1 Systems and methods for facsimile echo cancellation
11/15/2006EP1722489A1 Apparatus for coupling communication signals in a power line
11/15/2006EP1722488A1 SHDSL data transmission line
11/15/2006EP1721420A1 Method and communication system for the transmission of data in a motor vehicle
11/15/2006EP1721393A2 Installation for distributing digital signals via carrier currents
11/15/2006EP1721392A2 Cable diagnostics for 10gbase-t transceivers
11/15/2006EP1721377A1 Devices and methods for detecting the presence of a source of power
11/15/2006EP1579667A4 Controlling power output of a modem for power line communications
11/15/2006EP1410564A4 Apparatus and method of loop and rate dependent power cutback
11/15/2006EP1250797B1 Improved system and method for implementation of an echo canceller
11/15/2006CN1864120A LAN (local area network) with integrated energy and information transmission over the same line
11/15/2006CN1862983A Repeater, data frame transmission method based on X 10 and use thereof
11/14/2006US7137061 Method and device for signaling a transmission fault on a data line
11/14/2006US7137048 Method and apparatus for evaluating and optimizing a signaling system
11/14/2006US7136936 Method and system for virtual powerline local area networks
11/14/2006US7136772 Monitoring system for a communications network
11/14/2006US7136471 Method and apparatus for detecting a secondary destination of a telephone call based on changes in the telephone signal path
11/14/2006US7136421 Circuit for compensating a degraded signal and associated method
11/14/2006US7135917 Left-handed nonlinear transmission line media
11/09/2006WO2005109659A3 Configurable dsl transceiver
11/09/2006US20060251243 Reduced complexity transform-domain adaptive filter using selective partial updates
11/09/2006US20060251163 Time difference adjustment circuit
11/09/2006US20060251162 Apparatus for measuring jitter and method of measuring jitter
11/09/2006US20060251110 Local area network of serial intelligent cells
11/09/2006US20060250998 A method to reduce training time of an acoustic echo canceller in a full-duplex beamforming-based audio conferencing system
11/09/2006US20060250997 Systems and methods for facsimile echo cancellation
11/08/2006EP1719261A1 Methods and systems for compensating for alien crosstalk between connectors
11/08/2006EP1719260A2 Digital echo canceller
11/08/2006EP1719252A1 Frequency modulated ofdm over various communication media
11/08/2006EP1676193A4 System and method for adjusting soft decision thresholds in a soft-decision error correction system
11/08/2006EP1377843A4 Method and apparatus for transmission line analysis
11/08/2006CN1860697A Method and apparatus for power line communication
11/08/2006CN1860696A 电力线通信系统 Power Line Communications Systems
11/08/2006CN1284309C Echo killer leanring method
11/08/2006CN1284308C Method and apparatus for processing a modulated signal using an equalizer and a rake receiver
11/07/2006US7133529 Howling detecting and suppressing apparatus, method and computer program product
11/07/2006US7133446 Performance indicator for wireless digital signal reception
11/07/2006US7133442 Rapid identification of transmission media channel characteristics
11/07/2006US7133338 Method and related apparatus for evaluating beta-parameter according to results of read data sliced with different slicing levels while performing optimal power control of optical disk drive
11/07/2006US7133180 Resonant impedance matching in microwave and RF device
11/07/2006US7132928 Threat detection system interface
11/07/2006US7132613 Methods, systems, and terminals for load coil switching
11/02/2006WO2006116523A1 Continuous-time equalizer
11/02/2006WO2006114636A2 Data transmission
11/02/2006WO2006113965A1 Communications method and device
11/02/2006WO2005057801A3 Low-power mixed-mode echo/crosstalk cancellation in wireline communications
11/02/2006US20060248208 Method and apparatus for universal data exchange gateway
11/02/2006US20060245584 Voice communication device
11/02/2006US20060245583 Speech communication apparatus
11/02/2006US20060245508 Receiver circuit, differential signal receiver circuit, interface circuit, and electronic instrument
11/02/2006US20060245487 High-speed decoder for a multi-pair gigabit transceiver
11/02/2006US20060245449 Power supply via data lines in local networks
11/02/2006EP1716681A1 Channel equalization
11/02/2006EP0998823B1 Adaptive digital predistortion apparatus for linearizing a power amplifier for digital broadcasting
11/02/2006CA2844712A1 Bandwidth management in a network
11/02/2006CA2844686A1 Bandwidth management in a network
11/02/2006CA2607724A1 Data transmission
11/01/2006CN1856946A Method and apparatus for electrically adjusting delay in radio-frequency systems.
11/01/2006CN1855750A Anti-interfere mono-end signal transmitting method and device
11/01/2006CN1855749A Communication apparatus, communication nodes and communication method
10/2006
10/31/2006US7130430 Phased array sound system
10/31/2006US7130428 Picked-up-sound recording method and apparatus
10/31/2006US7130413 Microprocessor-controlled full-duplex speakerphone using automatic gain control
10/31/2006US7130340 Noise margin self-diagnostic receiver logic
10/31/2006US7130339 Method and apparatus for frame rate determination without decoding in a spread spectrum receiver
10/31/2006US7130281 Devices, softwares and methods with improved performance of acoustic echo canceler in VoIP communication
10/31/2006US7130277 Communication system and communication method
10/31/2006US7130274 Method for detecting connection polarity of network transmission lines and associated detection circuit
10/31/2006US7129824 Tactile transducers and method of operating
10/31/2006US7129823 Communications setting method and communications setting system for power line communications system
10/31/2006US7129822 Devices for detecting the presence of a source of power
10/31/2006US7129820 Door station apparatus with electric lock