Patents for H04B 3 - Line transmission systems (31,523) |
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04/25/2007 | EP1516434A4 Ultra-wideband communication through a wire network |
04/25/2007 | CN1954586A High speed multiple loop DSL system |
04/25/2007 | CN1954526A Mehtod and apparatus for synchronization over 802.3AF |
04/25/2007 | CN1312861C Method of effective balancing in electric information system including mobile reveiving transmitting machine |
04/25/2007 | CN1312850C Method and devices for controlling loads connected to power line |
04/24/2007 | US7210162 DVB-ASI signal inverting adapter and system |
04/24/2007 | US7209566 Method and apparatus for determining a nonlinear response function for a loudspeaker |
04/24/2007 | US7209517 Method and apparatus for estimating a maximum rate of data and for estimating power required for transmission of data at a rate of data in a communication system |
04/24/2007 | CA2307653C Echo canceller employing dual-h architecture having improved double-talk detection |
04/24/2007 | CA2211347C An encoding method and apparatus using a control circuit switching between two backward adaptive encoders for transmission |
04/19/2007 | WO2007043705A1 Method and apparatus for power line communication |
04/19/2007 | WO2007043595A1 Power supply apparatus and power line communication apparatus thereof |
04/19/2007 | WO2007043162A1 Power line communication system and its relay device |
04/19/2007 | WO2007043124A1 Oversampling transversal equalizer |
04/19/2007 | WO2007017073A3 Facility management system or danger warning system |
04/19/2007 | WO2006107911A3 Method and apparatus for reference symbol aided channel estimation |
04/19/2007 | WO2006086743A3 In-band parametric sound generation system |
04/19/2007 | US20070086600 Dual ear voice communication device |
04/19/2007 | US20070085667 Motor vehicle signalling system incorporating a haptic accelerator pedal |
04/19/2007 | DE102005048225A1 Signal transmission line performance parameters determining method, involves detecting reflected signal impulse portions at closed end, and determining performance parameter of line based on reflected signal impulse portion |
04/18/2007 | EP1775851A1 Crosstalk compensation circuit, unit and method |
04/18/2007 | EP1774672A1 Power line transmission apparatus and communication system using the same |
04/18/2007 | EP1774517A1 Audio signal dereverberation |
04/18/2007 | EP1025653B1 Method for measurement and reduction of frequency offsets in distributwed satellite/wireless networks and corresponding communications system |
04/18/2007 | CN2891485Y Power carrier communication device |
04/18/2007 | CN2891484Y Mixed communication branch splitter |
04/18/2007 | CN2891132Y Controller LAN bus data acquisition unit |
04/18/2007 | CN1949675A Method for implementing coverage in mobile communication signal chamber by CATV coaxial cable |
04/17/2007 | US7206417 Wireless digital transmission system for loudspeakers |
04/17/2007 | US7206358 Error recovery apparatus of digital broadcasting receiver to compensate a phase-error generated by a broadcasting signal transmitted through a multi-path channel |
04/17/2007 | US7206339 Wonder generator, digital line tester comprising the same, and phase noise transfer characteristic analyzer |
04/17/2007 | US7206320 Method and apparatus for non-centralized network bandwidth management |
04/17/2007 | US7206254 Underwater cable arrangements and devices |
04/17/2007 | US7206213 Semiconductor memory device having repeaters located at the global input/output line |
04/17/2007 | US7206152 Adaptive equalizing circuit and regenerative device using it, and adaptive equalizing method |
04/17/2007 | US7205860 Electromagnetic interface module for balanced data communication |
04/12/2007 | WO2007040772A1 Integrated motor monitoring system |
04/12/2007 | WO2007040216A1 Signal receiving apparatus including equalizer, terminal apparatus, signal receiving method, and signal receiving program |
04/12/2007 | WO2007040203A1 Communication device for enabling communication systems to coexist, and coexisting method |
04/12/2007 | WO2007039723A1 Multi-wideband communications over power lines |
04/12/2007 | WO2007038901A1 System, apparatus and method for testing line |
04/12/2007 | WO2007024879A3 Headset with flashing light emitting diodes |
04/12/2007 | WO2006125733A3 Extraction of can-bus-signals without feedback |
04/12/2007 | US20070081599 Method and apparatus for measuring reflected voltage of transformer |
04/12/2007 | US20070081551 Communication apparatus, communication system and communication method |
04/12/2007 | US20070080791 Tactile device |
04/12/2007 | US20070080755 Method and apparatus for implementing common mode cable noise suppression for medium range frequencies |
04/12/2007 | US20070080587 Galvanic isolation of a signal using capacitive coupling embeded within a circuit board |
04/12/2007 | DE10321936B4 Optisches Kommunikationssystem, Signalweiterleitungseinrichtung und optischer Kommunikationsverbinder An optical communication system, signal transmission device and optical communication connector |
04/11/2007 | EP1772341A2 Communication system for data transmission at a railway installation |
04/11/2007 | EP1771952A1 Circuit arrangement for suppressing interfering signals in transmitted signals emitted by a modem of a household appliance |
04/11/2007 | EP1606946B1 Method and modem for data communication in cable television networks |
04/11/2007 | CN2888753Y A wired closed circuit multi-channel telephone with loudspeaker for indoor crane |
04/11/2007 | CN1947366A Method and circuit used to prevent or at least to reduce disturbance signals when switching off voltage supply, in particular in a household device |
04/11/2007 | CN1947353A Communication method utilizing power line |
04/11/2007 | CN1947352A Methods and systems for compensating for alien crosstalk between connectors |
04/11/2007 | CN1945992A Electric line communication signal overlapping mode |
04/10/2007 | US7203488 Flexible software radio transceiver |
04/10/2007 | US7203308 Echo canceller ensuring further reduction in residual echo |
04/10/2007 | US7203243 Line driver with reduced power consumption |
04/10/2007 | US7203230 Method and system for training adaptive channel equalization |
04/10/2007 | US7203225 Method of phase controlling of a data signal, counter clock circuit arrangement, and interface device |
04/10/2007 | US7203224 Isolation system with digital communication across a capacitive barrier |
04/10/2007 | US7203178 Multiuser interference cancellation apparatus |
04/10/2007 | US7203157 Equalization method and device of the GMMSE type |
04/05/2007 | WO2007036428A1 Aircraft local multimedia network |
04/05/2007 | WO2007036165A1 Method and apparatus for crosstalk reduction on digital subscriber lines |
04/05/2007 | WO2007036134A1 Transmitting device, receiving device and method based on multiple sub-bands filters set |
04/05/2007 | WO2007010452A3 Emulation and debug interfaces for testing an integrated circuit with an asynchronous microcontroller |
04/05/2007 | WO2007010452A2 Emulation and debug interfaces for testing an integrated circuit with an asynchronous microcontroller |
04/05/2007 | WO2006060679A3 Method and apparatus for waking a person |
04/05/2007 | US20070076676 Power line communication adaptor and power line communication system |
04/05/2007 | US20070075818 Inductive coupler |
04/05/2007 | DE102006041454A1 Cross-talk identifying method for use in modern Internet protocol based digital subscriber line system, involves evaluating transfer function of crosstalk based on time delay and iteratively repeating with computing power |
04/05/2007 | DE102005047756A1 Rail system for e.g. electrical rail vehicle, has communication devices providing high frequency signal to conductors, where data are exchanged using signal, and high-frequency bridges electrically bridging switch based on signal |
04/04/2007 | EP1770871A1 Device for the capacitive coupling of a data-transmission device to a phase of an electrical power line |
04/04/2007 | EP1770870A1 Powerline communication device and method |
04/04/2007 | EP1770651A1 Computerised system for ordering taxi services and for monitoring the operation of a taxicab |
04/04/2007 | EP1769587A1 Method and apparatus for installing power line communication network |
04/04/2007 | EP1769192A2 Two-wire power and communications for irrigation systems |
04/04/2007 | EP1614243A4 System and method for preventing phantom data communication links |
04/04/2007 | CN1943282A Mains wire antenna for wireless interface applications |
04/04/2007 | CN1943163A Dual mode power over Ethernet controller |
04/04/2007 | CN1943130A Communication channel capacity estimation |
04/04/2007 | CN1941650A Signal separation and separating system and separator board |
04/04/2007 | CN1941649A Method and system for setting communication equipment |
04/04/2007 | CN1309254C Repetitive-PN1023-sequence echo-cancellation reference signal for single-carrier digital television broadcast systems |
04/04/2007 | CN1309180C Method for multiple access and transmission in point-to-multipoint system on electrical network |
04/03/2007 | US7200223 Electronic circuit to reduce noise in digital subscriber loop and communications over unshielded twisted pair metallic conductors |
04/03/2007 | US7200222 Echo canceller employing dual-H architecture having variable adaptive gain settings |
04/03/2007 | US7200221 Methods and systems for providing multi-path echo cancellation |
04/03/2007 | US7200176 Transformerless ethernet controller |
04/03/2007 | US7200171 System and method for estimating initial channel quality in a multirate system |
04/03/2007 | US7200170 High speed I-O loopback testing with low speed DC test capability |
04/03/2007 | US7200093 Method and related apparatus for decoding information carried by wobble signals |
04/03/2007 | US7200078 Method and related optical disk accessing apparatus for calibrating optical disk tilt servo system according to non-constant relation between locations and tilt angles of optical disk |
04/03/2007 | US7199701 Repeater unit |
04/03/2007 | US7199700 Breathminder |
04/03/2007 | US7198521 Power line phase coupler system |
04/03/2007 | CA2304678C Coupling communications signals to a power line |