| Patents for H04B 3 - Line transmission systems (31,523) |
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| 02/04/2009 | CN201191829Y Converter used between GSM/CDMA mobile phone network and power line carrier |
| 02/04/2009 | CN201191828Y Converter used between TCP/IP network and power line carrier |
| 02/04/2009 | CN101361312A Clock data restoring device |
| 02/04/2009 | CN101361285A Clock-free activation circuit |
| 02/04/2009 | CN101360580A A welding-type system with power source and remote device connected through a weld cable using binary phase shift keying for transmitting commands over the weld cable, method for controlling the power |
| 02/04/2009 | CN101359956A Repeater |
| 02/04/2009 | CN101359955A Repeater and interference signal eliminating method thereof |
| 02/04/2009 | CN101359933A DC line carrier communication device |
| 02/04/2009 | CN101359932A DSL circuit driving device, method and access system |
| 02/04/2009 | CN101359431A PLC network television teaching system |
| 02/04/2009 | CN100459604C ZF-based adaptive asynchronous receiver |
| 02/04/2009 | CN100459527C System and method for testing subscriber lines in network communication |
| 02/04/2009 | CN100459452C Method and apparatus for increasing receiver immunity to interference |
| 02/04/2009 | CN100459448C Frequency domain echo canceller |
| 02/03/2009 | US7487532 Optimization of a full duplex wideband communications system |
| 02/03/2009 | US7487055 Estimating of the jitter of a clock signal |
| 02/03/2009 | US7486788 Transceiver with integrated hybrid circuit |
| 02/03/2009 | US7486742 Optimization of ultra-wideband communication through a wire medium |
| 02/03/2009 | US7486725 Bit error rate tester and pseudo random bit sequences generator thereof |
| 02/03/2009 | US7486724 Codec compensation techniques for channel analysis applications |
| 02/03/2009 | US7486723 Asymmetrical digital subscriber line system with improved data rate |
| 02/03/2009 | US7486630 Module for distributed network repeater |
| 01/29/2009 | WO2009014710A1 Multi-port accumulator for radio-over-fiber (rof) wireless picocellular systems |
| 01/29/2009 | WO2009014257A1 Car data communication system and car |
| 01/29/2009 | WO2009014122A1 Echo canceller |
| 01/29/2009 | WO2009013990A1 Vehicle information transmission device and information transmission system |
| 01/29/2009 | WO2009013790A1 Signal transmission apparatus and method |
| 01/29/2009 | WO2009013644A1 Method and device for pseudo-differential transmission |
| 01/29/2009 | WO2009013008A2 Repeater for a bidirectional serial bus |
| 01/29/2009 | WO2009012537A1 Equalizer filter with mismatch tolerant detection mechanism for lower and higher frequency gain loops |
| 01/29/2009 | WO2008150610A4 High speed digital communication networks for high interference cargo transportation environments |
| 01/29/2009 | US20090028355 Double-talk detector with accuracy and speed of detection improved and a method therefor |
| 01/29/2009 | US20090028354 Echo Canceller Employing Dual-H Architecture Having Split Adaptive Gain Settings |
| 01/29/2009 | US20090028321 Echo Path Change Detection in a Network Echo Canceller |
| 01/29/2009 | US20090028320 Inductive coupling for communications equipment interface circuitry |
| 01/29/2009 | US20090028230 Method and apparatus for improving quality of service for reception in digital television broadcast systems |
| 01/29/2009 | US20090028229 Method and Procedure for Detecting Cable Length in a Storage Subsystem with Wide Ports |
| 01/29/2009 | US20090028075 Full-duplex communication device and method of acoustic echo cancellation therein |
| 01/28/2009 | EP2019543A1 Echo canceller employing dual-H architecture having split adaptive gain settings |
| 01/28/2009 | EP2019496A1 Method for transmitting a signal between a transmitter and a receiver in a power line network, transmitter, receiver, power line communication modem and powerline communication system |
| 01/28/2009 | EP2018714A2 Wireless repeater with master/slave configuration |
| 01/28/2009 | CN201188611Y ADSL extender base on ISDN |
| 01/28/2009 | CN101356743A Device for communications via the electricity mains with filtered auxiliary power outlet |
| 01/28/2009 | CN101356742A Systems and methods for power line communication with refrigeration containers |
| 01/28/2009 | CN101355605A Method for processing network management alarm and alarm processor |
| 01/28/2009 | CN101355600A Noise suppression system, sound acquisition apparatus, sound output apparatus and computer-readable medium |
| 01/28/2009 | CN101355375A Test system for data transmission quantization of electric power line modem |
| 01/28/2009 | CN100456647C Signal transmission circuit |
| 01/27/2009 | US7483538 Wireless and wired speaker hub for a home theater system |
| 01/27/2009 | US7483529 Installation for distributing digital signals |
| 01/27/2009 | US7483524 Network for telephony and data communication |
| 01/27/2009 | US7483477 User interface for selection of sampling parameters in a logic analyzer whose data receivers are in groups each having a separate threshold that is common to the channels within each group |
| 01/27/2009 | US7483420 DSP circuitry for supporting multi-channel applications by selectively shifting data through registers |
| 01/27/2009 | US7483401 Dynamic allocation of frequency spectrum |
| 01/27/2009 | US7482729 Hypersonic transducer |
| 01/27/2009 | CA2515562C Broadband coupler technique for electrical connection to power lines |
| 01/24/2009 | CA2638106A1 Information terminal device and option unit therefor |
| 01/22/2009 | WO2009012271A1 Methods and apparatus for resolving pilot pseudorandom noise code conflicts in a communication system |
| 01/22/2009 | WO2009009878A1 Transformer meter and system for using same |
| 01/22/2009 | WO2008150116A3 Digital image transmission system transmitting digital image data |
| 01/22/2009 | US20090023386 Radiative focal area antenna transmission coupling arrangement |
| 01/22/2009 | US20090022075 Selectively adaptable far-end echo cancellation in a packet voice system |
| 01/22/2009 | US20090022074 Echo canceller with interference-level controlled step size |
| 01/22/2009 | US20090022057 System and method for communicating with objects on a network |
| 01/22/2009 | US20090021354 Input device |
| 01/22/2009 | CA2692864A1 Transformer meter and system for using same |
| 01/22/2009 | CA2692438A1 Methods and apparatus for resolving pilot pseudorandom noise code conflicts in a communication system |
| 01/21/2009 | EP1186158B1 Methods and apparatus for improved sub-band adaptive filtering in echo cancellation systems |
| 01/21/2009 | CN201185420Y Optical communication stations for reconstructing cable TV bilateral network |
| 01/21/2009 | CN101350734A Method for automatically configuring server associated by automatic configuration terminal equipment |
| 01/21/2009 | CN101350669A Illumination light communication device |
| 01/21/2009 | CN101350668A Illumination light communication device |
| 01/21/2009 | CN101350667A Illumination light communication device |
| 01/21/2009 | CN101350666A Illumination light communication device |
| 01/21/2009 | CN101348205A Control apparatus and refit method of elevator |
| 01/21/2009 | CN100454855C Device and method for long distance controlling domestic electric appliance |
| 01/21/2009 | CN100454852C Method for network analysis and network analyser module |
| 01/21/2009 | CN100454759C Wave filtering method and apparatus |
| 01/20/2009 | US7480840 Apparatus, system, and method for facilitating port testing of a multi-port host adapter |
| 01/20/2009 | US7480595 System estimation method and program, recording medium, and system estimation device |
| 01/20/2009 | US7480486 Wireless repeater and method for managing air interface communications |
| 01/20/2009 | US7480485 Radio frequency repeater with automated block/channel selection |
| 01/20/2009 | US7480367 Fault characterization using information indicative of echo |
| 01/20/2009 | US7480329 Method of finding data dependent timing and voltage jitter for different bits in an arbitrary digital signal in accordance with selected surrounding bits |
| 01/20/2009 | US7480326 Channel diagnostic systems and methods |
| 01/20/2009 | US7480263 Method and device for bi-directional half duplex transmission of data |
| 01/20/2009 | US7480262 Telephone terminal, telephone system using telephone terminal and control method of telephone terminal |
| 01/20/2009 | US7479710 Electrical supply network |
| 01/15/2009 | WO2009008566A1 Power line/ wireless communication equipment, broadband over power line communication system having the same, and method thereof |
| 01/15/2009 | WO2009008458A1 Correction circuit and test device |
| 01/15/2009 | WO2009008272A1 Communication control apparatus |
| 01/15/2009 | WO2009007866A1 Pseudo-differential interfacing device having a switching circuit |
| 01/15/2009 | WO2009007864A1 Pseudo-differential interfacing device having a balancing circuit |
| 01/15/2009 | WO2009006685A1 Communication methods and devices |
| 01/15/2009 | US20090017878 Acoustic echo reduction in mobile terminals |
| 01/15/2009 | US20090015289 Signal transmitting device suited to fast signal transmission |
| 01/15/2009 | US20090015045 Haptic seating system |
| 01/14/2009 | EP2015448A1 Signal acquisition chain comprising a selective frequency attenuator |
| 01/14/2009 | EP2013983A1 Echo detection and delay estimation |
| 01/14/2009 | EP2013982A2 Echo detection and delay estimation using a pattern recognition approach and cepstral correlation |