| Patents for H04B 3 - Line transmission systems (31,523) |
|---|
| 01/09/2007 | CA2447939C Text communication device for divers |
| 01/04/2007 | WO2007002850A2 Encoding method and apparatus for a dual mode super source follower circuit |
| 01/04/2007 | WO2007002827A2 Method and apparatus for synchronization of data in a transformer circuit |
| 01/04/2007 | WO2007002826A2 Method and apparatus for detection of load impedance modulation in a transfordmer circuit |
| 01/04/2007 | WO2007002825A2 Method and apparatus for cancellation of magnetizing inductance current in a transformer circuit |
| 01/04/2007 | WO2007001464A2 Systems and methods for tuning filters |
| 01/04/2007 | WO2007000777A1 Broadband hf/vhf/uhf communication on power lines |
| 01/04/2007 | WO2006120510B1 Phantom use in dsl systems |
| 01/04/2007 | WO2005104782A3 Fext cancellation of mated rj45 interconnect |
| 01/04/2007 | WO2005076912A3 An addressable loudspeaker |
| 01/04/2007 | US20070005760 Systems and methods for providing presence tracking in a distributed computing system |
| 01/04/2007 | US20070004268 Alien crosstalk suppression with enhanced patchcord |
| 01/04/2007 | US20070003073 Interface device for wireless audio applications. |
| 01/04/2007 | US20070002954 Hybrid voltage/current-mode transmission line driver |
| 01/04/2007 | US20070001825 Method and apparatus for waking a person |
| 01/04/2007 | US20070001777 Normal mode noise suppressing circuit |
| 01/04/2007 | DE102006010588A1 Elektrisches Mehrleitersystem zur Gegentakt-Signalübertragung mit Dämpfungs- oder Filterglied und Datenübertragungsbus Electric multi-conductor system for push-pull signal transmission attenuation or filter element and data communications bus |
| 01/04/2007 | DE102005030623A1 Data communication system for use as part of vehicle communication system, has controller producing signal to control clock frequency of slave transceiver, so that controlled frequency corresponds with frequency of master transceiver |
| 01/04/2007 | DE102005030049A1 Treiberschaltung für eine Telefonleitung A drive circuit for a telephone line |
| 01/04/2007 | DE102005029271A1 Verfahren und Einrichtung zur Bestimmung des Leckwiderstands von zumindest einer Ader einer mehrere Adern aufweisenden Teilnehmeranschlussleitung in einem Kommunikationsnetz Method and apparatus for determining the leakage resistance comprising at least one wire of a multiple wires subscriber line in a communications network |
| 01/03/2007 | EP1738187A1 Radiation information management device and communication device |
| 01/03/2007 | EP1523828B1 Method for separating multiple home networks |
| 01/03/2007 | EP1410679A4 Supplemental audio content system with wireless communication for a cinema and related methods |
| 01/03/2007 | EP1070393B1 Distribution system for external communication signals and data |
| 01/03/2007 | CN1890894A Compensating for dynamic nulls in a power line communication system |
| 01/03/2007 | CN1890893A Method and apparatus for notifying end user of excess power demand |
| 01/03/2007 | CN1890892A Echo canceller having a series arrangement of adaptive filters with individual update control strategy |
| 01/03/2007 | CN1890886A Method and apparatus for dynamically inserting gain in an adaptive filter system |
| 01/03/2007 | CN1890844A Connection for audio transfer |
| 01/03/2007 | CN1889401A Method for on-line identifying small packaged hot connecting and disconnecting module |
| 01/03/2007 | CN1889375A City sights lamp decoration control system utilizing electric carrier communication technique |
| 01/03/2007 | CN1889374A Electric switch with information transmitting function |
| 01/03/2007 | CN1888993A Comber controlling system with industrial bus |
| 01/02/2007 | US7159236 Transmission/reception integrated radio-frequency apparatus |
| 01/02/2007 | US7158770 Channel estimation method for a mobile communication system |
| 01/02/2007 | US7158632 Adaptive scaling and echo reduction |
| 01/02/2007 | US7158631 Efficient echo cancellation techniques |
| 01/02/2007 | US7158573 Method and apparatus for full duplex signaling across a transformer |
| 01/02/2007 | US7158565 Waveform equalizer and shift register |
| 01/02/2007 | US7158564 Device for generating a digitally modulated test signal |
| 01/02/2007 | US7158563 Dynamic digital communication system control |
| 01/02/2007 | US7158562 Timing control in data receivers and transmitters |
| 01/02/2007 | US7158485 Method for joining node into subnet of power line communication network, electronic appliance connected to subnet, and communication module used in electronic appliance |
| 01/02/2007 | US7158013 Detection of broadcast signals for defining useable frequency bands for powerline communication |
| 01/02/2007 | US7158012 Non-invasive powerline communications system |
| 01/02/2007 | US7158003 Construction of medium voltage power line data couplers |
| 01/02/2007 | US7157917 Sensor cable having easily changeable entire length and allowing accurate and high speed signal transmission even when entire length is made longer, and amplifier-separated type sensor with the cable |
| 01/02/2007 | CA2394342C Real time processing and management method for canceling out the echo between a loudspeaker and a microphone of a computer terminal |
| 12/28/2006 | WO2005086801A3 Companion microphone system and method |
| 12/28/2006 | WO2005022797A3 Synchronization in a broadcast ofdm system using time division multiplexed pilots |
| 12/28/2006 | US20060291667 Method and device for driving a directional speaker |
| 12/28/2006 | US20060291573 Signal interface |
| 12/28/2006 | US20060291572 Method and system for a configurable Vcc reference and Vss reference differential current mode transmitter |
| 12/28/2006 | US20060291548 Device and method for measuring jitter |
| 12/28/2006 | US20060291547 Device and method for testing signal-receiving sensitivity of an electronic subassembly |
| 12/28/2006 | US20060291497 Local area network of serial intelligent cells |
| 12/28/2006 | US20060291427 Method for identifying home cell and apparatus thereof |
| 12/28/2006 | US20060291406 Device authentication method and system |
| 12/28/2006 | US20060290442 Integrated microelectronics component for filtering electromagnetic noise and radio frequency transmission circuit comprising same |
| 12/27/2006 | EP1735802A1 An inductive coupler |
| 12/27/2006 | EP1552677A4 Arrangement of a data coupler for power line communications |
| 12/27/2006 | EP1391055B1 Line interface with a matching impedance coupled to a feedback path |
| 12/27/2006 | EP1051835B1 Generating calibration signals for an adaptive beamformer |
| 12/27/2006 | CN2852538Y Power line multi-carrier transmitter |
| 12/27/2006 | CN2852147Y Power line breakage alarm device |
| 12/27/2006 | CN1885749A Novel communication network topology structure for power electronic system |
| 12/27/2006 | CN1885731A Communication bus and electrical switchboard comprising said bus |
| 12/27/2006 | CN1292533C Balance high frequency device, method for improving balance characteristic and balance high frequency circuit using the device |
| 12/26/2006 | US7155257 Communication station with automatic cable loss compensation |
| 12/26/2006 | US7155165 Method and radio station for the transmission of predistored signals via several radio channels |
| 12/26/2006 | US7155018 System and method facilitating acoustic echo cancellation convergence detection |
| 12/26/2006 | US7155017 System and method for controlling audio signals for playback |
| 12/26/2006 | US7155006 Method and apparatus for outbound wave subtraction using a variable offset amplifier |
| 12/26/2006 | US7154969 Method for shared estimation of parameters |
| 12/26/2006 | US7154967 Methods and apparatus for efficient and accurate coarse timing synchronization in burst demodulators |
| 12/26/2006 | US7154954 Communication system |
| 12/26/2006 | US7154945 Equalizer |
| 12/26/2006 | US7154943 Method and circuit of digital measurement of the phase of a sinusoidal signal |
| 12/26/2006 | US7154942 Method and apparatus for automated correlation of digital modulation impairment |
| 12/26/2006 | US7154940 Isolation system with digital communication across a capacitive barrier |
| 12/26/2006 | US7154867 Echo reduction |
| 12/26/2006 | US7154382 Arrangement of inductive couplers for data communication |
| 12/26/2006 | US7154377 Movable barrier operator compressed information method and apparatus |
| 12/26/2006 | US7154281 Apparatus and method for determining the status of an electric power cable |
| 12/26/2006 | US7154049 Apparatus for crosstalk compensation in a telecommunications connector |
| 12/21/2006 | WO2006135081A1 Power line communication apparatus, intergrated circuit for power line communication and transmission/reception methods |
| 12/21/2006 | WO2006135055A1 Power line communication system and power line communication method |
| 12/21/2006 | WO2006134730A1 Echo canceler |
| 12/21/2006 | WO2006134655A1 Power line propagation communication system |
| 12/21/2006 | WO2006134387A1 Systems and methods for adaptive echo cancellation |
| 12/21/2006 | WO2006044153A3 Buffered waveforms for high speed digital to analog conversion |
| 12/21/2006 | WO2005062915A3 Power line communications device in which physical communications protocol layer operation is dynamically selectable |
| 12/21/2006 | US20060287746 Network Speaker for an Audio Network Distribution System |
| 12/21/2006 | DE202006013016U1 Communication device for use in e.g. computer, has control module adjusting transmission mode and transmission rate, where control signal is transmitted to outside input/output unit and is delivered to current line from carrier module |
| 12/20/2006 | EP1734687A1 Active line testing device for the determination of the performance of a network outlet |
| 12/20/2006 | EP1734661A1 Systems and methods for loop length and bridged tap length determination of a transmission line |
| 12/20/2006 | EP1733550A1 High speed multiple loop dsl system |
| 12/20/2006 | EP1733483A1 Communication channel capacity estimation |
| 12/20/2006 | EP1733481A1 Electronic circuit to reduce noise in digital subscriber loop and communications over unshielded twisted pair metallic conductors |
| 12/20/2006 | EP1733318A2 An addressable loudspeaker |