Patents for H04B 3 - Line transmission systems (31,523) |
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09/10/2008 | EP1913708A4 Determination of audio device quality |
09/10/2008 | CN201114896Y Intelligent light system |
09/10/2008 | CN201114599Y Middle-frequency network cable remote system |
09/10/2008 | CN201114085Y Metal pipeline data-transmission coupler |
09/10/2008 | CN201114024Y Three phase carrier signal coupler |
09/10/2008 | CN201114023Y Modem |
09/10/2008 | CN201114022Y Electric power repeaters |
09/10/2008 | CN201114021Y Display apparatus binding electric power line communication transmission |
09/10/2008 | CN201114020Y Frequency converter drive electrical signal remote transmission system based on twisted-pair line |
09/10/2008 | CN201113557Y Coupling bridging device for mixing line carrier signal spanning í«line switch í» |
09/10/2008 | CN201113556Y Coupling bridging device for mixing line carrier signal spanning í«line switch í» |
09/10/2008 | CN201113555Y Mixing line carrier network communication carrier signal coupling device |
09/10/2008 | CN201113554Y Mixing line carrier network communication carrier signal coupling device |
09/10/2008 | CN201113553Y Mixing line carrier network communication carrier signal coupling device |
09/10/2008 | CN101263663A Power supply and communication system for a passenger plane |
09/10/2008 | CN101262714A Acoustic signal processing system |
09/10/2008 | CN101262530A A device for eliminating echo of mobile terminal |
09/10/2008 | CN101262253A Method for solving cross-interference issue in digital user line and cross-interference elimination device |
09/10/2008 | CN101262252A Tuning station for eliminating echo and method for eliminating echo based this station |
09/10/2008 | CN101262251A Passive echo elimination device and its signal receiving/transmission method |
09/09/2008 | US7424618 Biometric access control and time and attendance network including configurable system-on-chip (CSOC) processors with embedded programmable logic |
09/09/2008 | US7424315 Communication bus system operable in a sleep mode and a normal mode |
09/09/2008 | US7424118 Moving object equipped with ultra-directional speaker |
09/09/2008 | US7424097 Method of measuring and improving xDSL transmission characteristic |
09/09/2008 | US7424060 Transformer data coupler with high common mode immunity |
09/09/2008 | US7424059 Data transfer circuit |
09/09/2008 | US7424031 Local area network of serial intelligent cells |
09/09/2008 | US7423984 Digital subscriber line transmission method, apparatus and system |
09/09/2008 | US7423983 Voice and data exchange over a packet based network |
09/09/2008 | US7423959 Process for synchronization in the downstream of multiple users in a point multipoint system with OFDM modulation |
09/09/2008 | CA2413436C Echo canceling method and apparatus for multiplex line |
09/07/2008 | CA2622648A1 Light switch used as a communicaton device |
09/04/2008 | WO2008105660A1 Signal quality determination in cable networks |
09/04/2008 | WO2008105214A1 Transmission method, transmission system, transmission device, and reception device |
09/04/2008 | WO2008105196A1 Communication system, communication device, communication terminal, and communication setting method |
09/04/2008 | WO2008105070A1 Adaptive equalization circuit |
09/04/2008 | WO2008104686A2 Test installation with a test bench and method for using such a test bench in said installation |
09/04/2008 | WO2008104684A2 Testing installation for the performance of a domestic electric supply network |
09/04/2008 | WO2008046714A3 Vectored digital subscriber line system having modular vectoring arrangements |
09/04/2008 | US20080215762 Method and system for virtual powerline local area networks |
09/04/2008 | US20080215655 Multi-carrier transmission process and system in a difficult environment with optimisation of emission power |
09/04/2008 | US20080214118 Line Sensor Selection For Quantifying Alien Crosstalk in a Shared Communications Medium |
09/04/2008 | US20080212723 Signal processing apparatus, signal processing method, and program |
09/04/2008 | US20080212717 Carrier frequency detection for signal acquisition |
09/04/2008 | US20080212691 Signalling Method and Apparatus |
09/04/2008 | US20080212665 System for monitoring the quality of a communications channel with mirror receivers |
09/04/2008 | US20080212663 Universal intelligent modem |
09/04/2008 | US20080212662 Apparatus for measuring iq imbalance |
09/04/2008 | US20080211663 Power line audio communication system |
09/04/2008 | US20080211307 Two-Wire Power And Communications For Irrigation Systems |
09/04/2008 | DE202008007250U1 In Doppelheizelementen vorgesehene zweifache thermische Sicherungen In double heating elements provided dual thermal fuses |
09/04/2008 | CA2679278A1 Signal quality determination in cable networks |
09/03/2008 | EP1964377A2 High performance adsl line conditioner system and method |
09/03/2008 | EP1964286A1 Arrangement for a radio link |
09/03/2008 | EP1964277A1 Transmitting arrangement for exchanging information data between an electric consumer and an upstream converter |
09/03/2008 | EP1173998B1 Path switching according to transmission requirements |
09/03/2008 | EP1029409B1 Method for joint equalization and detection of multiple user signals |
09/03/2008 | CN100417121C Method and supply line structure for transmitting data between electrical automotive components |
09/02/2008 | US7421028 Transformer isolator for digital power supply |
09/02/2008 | US7420937 Selectively adaptable far-end echo cancellation in a packet voice system |
09/02/2008 | US7420924 Transmission device |
09/02/2008 | US7420459 Powerline networking device |
09/02/2008 | CA2421759C Method and apparatus for fast converging affine projection based echo canceller |
09/02/2008 | CA2390000C System and method for signal validation and leakage detection |
08/28/2008 | WO2008102496A1 Power line communication apparatus |
08/28/2008 | WO2008101523A1 Method of transmitting data and modem |
08/28/2008 | US20080205664 Multi-type audio processing system and method |
08/28/2008 | US20080205661 System and method for cancelling echo |
08/28/2008 | US20080205531 Adaptively configurable class-A/class-B transmit DAC for Transceiver emission and power consumption control |
08/28/2008 | US20080205502 Apparatus for measuring iq imbalance |
08/28/2008 | US20080205501 Dsl System Estimation |
08/28/2008 | US20080205500 Radiofrequency test system integrated in a base station |
08/28/2008 | US20080205451 Transmission scheme for uplink access in a fdma system |
08/28/2008 | US20080204417 Multimodal Adaptive User Interface for a Portable Electronic Device |
08/28/2008 | US20080204134 Power combiner |
08/27/2008 | EP1962438A1 Method of transmitting data and modem |
08/27/2008 | EP1962437A1 Method and apparatus for crosstalk reduction on digital subscriber lines |
08/27/2008 | EP1962436A1 Electricity echo elimination device and method |
08/27/2008 | EP1962435A1 Impulse generator utilizing nonlinear transmission line |
08/27/2008 | EP1962431A1 Digital communication system, indoor device, and outdoor device |
08/27/2008 | EP1961130A1 Method of correcting the para-crosstalk of an sdsl link |
08/27/2008 | EP1961129A2 Clock-free activation circuit |
08/27/2008 | EP1504543A4 Data access arrangement using a high frequency transformer for electrical isolation |
08/27/2008 | CN101253698A PC adaptor apparatus, PC signal reproducing system, pc signal reproducing method, pc signal reproducing program, output apparatus control program, pc adaptor apparatus control program, pc control prog |
08/27/2008 | CN101253679A System and method for electric motor control |
08/27/2008 | CN101252594A Intelligent household electrical appliance control system |
08/27/2008 | CN101252375A Apparatus and method for customizing information based on electric power line |
08/27/2008 | CN101252374A Communication system of elevator calling |
08/27/2008 | CN101252373A Local terminal equipment, signal separator and communicating system |
08/27/2008 | CN101251951A Power distribution network industrial frequency communicating method and system |
08/27/2008 | CN100414522C Method for transport and receive data singal and sand and receive circuit thereof |
08/26/2008 | US7418038 Data receiving device |
08/26/2008 | US7418034 Combined trellis decoder and decision feedback equalizer |
08/26/2008 | US7418033 Selectively filtering a signal |
08/26/2008 | US7418031 Automatic baud rate determination |
08/26/2008 | US7417530 Sleep safety alarm |
08/26/2008 | CA2414972C Gain control method for acoustic echo cancellation and suppression |
08/26/2008 | CA2408081C Method and system for power line null detection and automatic frequency and gain control |
08/21/2008 | WO2008099601A1 Power line communication apparatus, registration status confirmation method, and power line communication system |
08/21/2008 | WO2008083395A8 Unknown destination traffic repetition |