Patents for H04B 3 - Line transmission systems (31,523) |
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05/04/2005 | EP1295404B1 Wireless transceiver with subtractive filter compensating both transmit and receive artifacts |
05/04/2005 | CN2697956Y 2 Mb as based on low-voltage power line high speed data communication system and network adapter thereof |
05/04/2005 | CN1613250A Verificution for proper coupling of power line communication units to power-supply circuit |
05/04/2005 | CN1612477A Adaptive equalizer, decoding device and error detecting device |
05/03/2005 | US6888939 Circuit for joint transmitting voice and data over a telephone line |
05/03/2005 | US6888903 Digital communication receiver and a method for the operation thereof |
05/03/2005 | US6888896 Method and apparatus for reducing flux imbalance signal distortion in a data communications system |
05/03/2005 | US6888789 Transmitting apparatus, receiving apparatus, communication system, transmission method, reception method, and communication method |
04/30/2005 | CA2481623A1 Telephone exchange apparatus and network telephone system |
04/28/2005 | WO2005039070A2 Compensating for dynamic nulls in a power line communication system |
04/28/2005 | WO2005039069A1 Facilities equipment communication circuit |
04/28/2005 | WO2005002183A3 Statistical adaptive-filter controller |
04/28/2005 | WO2005002065A3 Ultra-wideband communication through local power lines |
04/28/2005 | US20050089197 Authentication system and program |
04/28/2005 | US20050089148 Systems and methods for echo cancellation with arbitrary playback sampling rates |
04/28/2005 | US20050089114 Dynamic allocation of frequency spectrum |
04/28/2005 | US20050089106 Data transmission system and method |
04/28/2005 | US20050089101 Sub-block domain transformation multiple signal processing |
04/28/2005 | US20050089061 Joint powerline/ultra-wide band system |
04/28/2005 | US20050089029 Method for operating a transmission system and transmission system in an energy supply network |
04/28/2005 | US20050088962 Digital filter circuit and method for blocking a transmission line reflection signal |
04/28/2005 | US20050088961 Method and apparatus for domain transformation multiple signal processing |
04/28/2005 | US20050088960 Apparatus and method for transmitting/receiving pilot pattern set to distinguish base station in orthogonal frequency division multiplexing (OFDM) communication system |
04/28/2005 | US20050088958 Crosstalk reduction in a backplane employing low-skew clock distribution |
04/28/2005 | US20050088200 Signal transmitting device suited to fast signal transmission |
04/27/2005 | EP1526741A1 Method and Apparatus for temporally recursive chrominance signal noise reduction |
04/27/2005 | EP1526740A1 Method and apparatus for temporally recursive chrominance signal noise reduction |
04/27/2005 | EP1526510A1 Systems and methods for echo cancellation with arbitrary playback sampling rates |
04/27/2005 | EP1428323A4 Power line communication circuit |
04/27/2005 | EP1350334A4 Network quality of service localizer |
04/27/2005 | EP1234353B1 Electromagnetic field in a communications system for wireless networks |
04/27/2005 | EP1232634A4 Non-contact signal analyzer |
04/27/2005 | EP1232568A4 Highly reliable power line communications system |
04/27/2005 | EP1157457A4 A closed loop calibration for an amplitude reconstruction amplifier |
04/27/2005 | CN2696214Y Power line network card |
04/27/2005 | CN1610416A Method and apparatus for temporally recursive chrominance signal noise reduction |
04/27/2005 | CN1199494C Method for establishment of mobile radio network base station and connection of the base station to the network |
04/27/2005 | CN1199412C Method for channel equalisation |
04/26/2005 | US6885954 Sequence time domain reflectometry using complementary golay codes |
04/26/2005 | US6885949 System and method for measuring system parameters and process variables using multiple sensors which are isolated by an intrinsically safe barrier |
04/26/2005 | US6885750 Asymmetric multichannel filter |
04/26/2005 | US6885746 Crosstalk identification for spectrum management in broadband telecommunications systems |
04/26/2005 | US6885674 Communications system for providing broadband communications using a medium voltage cable of a power system |
04/26/2005 | US6885499 Optical amplifying apparatus for amplifying wide-wavelength-band light, optical sending apparatus, optical transmission system, and optical amplifying method |
04/21/2005 | WO2005036919A2 Optimizing performance of a digital subscriber line |
04/21/2005 | WO2005036761A2 System, method and apparatus for crosstalk cancellation |
04/21/2005 | WO2005036374A1 Lan (local area network) with integrated energy and information transmission over the same line |
04/21/2005 | US20050086546 Powered device interface circuit |
04/21/2005 | US20050085259 Technique to coordinate wireless network over a power line or other wired back channel |
04/21/2005 | US20050085211 Compensating for dynamic nulls in a power line communication system |
04/21/2005 | US20050085135 External seizure mechanism for RF node connector |
04/21/2005 | US20050084122 Method for constructing a parametric transducer having an emitter film |
04/21/2005 | US20050084026 Pair-swap independent trellis decoder for a multi-pair gigabit transceiver |
04/21/2005 | US20050084020 Data receiving device |
04/21/2005 | US20050084002 Startup protocol for high throughput communications systems |
04/21/2005 | US20050083860 Determining distance to echo points on a wire-line medium |
04/21/2005 | US20050083439 Method and apparatus for temporally recursive chrominance signal noise reduction |
04/21/2005 | US20050083067 Coded multi-frequency transmitter and receiver for testing multi-conductor cables |
04/20/2005 | EP1524794A1 Transceiver training in a Digital Subscriber Line communicating system |
04/20/2005 | EP1524586A1 Transmitting information to a user's body |
04/20/2005 | EP1523846A1 Echo canceller with model mismatch compensation |
04/20/2005 | EP1523828A1 Method for separating multiple home networks |
04/20/2005 | EP1070393A4 Distribution system for external communication signals and data |
04/20/2005 | CN1608351A Device and method for carrying out multichannel acoustic echo cancellation with a variable number of channels |
04/20/2005 | CN1607741A Mobile phone signal covering system for use in elevator cabins |
04/20/2005 | CN1198441C Network for telephony and data communication |
04/20/2005 | CN1198420C Optical amplification device, optical emitting device, optical transferring system and optical amplification method |
04/19/2005 | US6882711 Packet based network exchange with rate synchronization |
04/19/2005 | US6882618 Transmitting apparatus, receiving apparatus, communication system, transmission method, reception method, and communication method |
04/14/2005 | WO2005008559A3 Rf id tag |
04/14/2005 | US20050078803 Multicarrier communication method and system, and communication apparatus incorporated therein |
04/14/2005 | US20050078758 Method for training a transceiver for high speed communications |
04/14/2005 | US20050078745 System and method for auto baud rate detection in asynchronous serial communication |
04/14/2005 | CA2540572A1 Code tree fragmentation in call admission control |
04/13/2005 | EP1523098A1 Receiver including linearity compensation in the receive band |
04/13/2005 | EP1522152A1 System for carrying out the line transmission of data over an electric network |
04/13/2005 | EP0857400B1 Variable length burst transmission over the physical layer of a multilayer transmission format |
04/13/2005 | CN2692917Y Multiple circuit safety digital mixer system |
04/13/2005 | CN1606833A Coupling circuit arrangement for data communication over power lines |
04/13/2005 | CN1606285A Intelligent network controller for household electrical appliance |
04/13/2005 | CN1606255A Charger and modem for mobile communication terminal |
04/13/2005 | CN1197263C Methods and apparatus for providing echo suppression using frequency domain nonlinear processing |
04/13/2005 | CN1197238C Automatic gain controller and method and communication equipment with said control function |
04/12/2005 | US6877557 In-well monitoring and flow control system |
04/07/2005 | WO2005032160A2 Interference cancellation receiver for high-speed communication systems |
04/07/2005 | US20050076148 Method and system for virtual powerline local area networks |
04/07/2005 | US20050074055 System, method and apparatus for crosstalk cancellation |
04/07/2005 | US20050073965 Auto-negotiation monitor system, repeating-transmission apparatus, and auto-negotiation monitor method used therefor |
04/07/2005 | CA2538969A1 Method and apparatus for electrically adjusting delay in radio-frequency systems |
04/06/2005 | EP1521381A1 Medium-voltage isolated capacitive coupling system |
04/06/2005 | EP1521380A1 Apparatus and method for reducing cross-talk between transmitted signals |
04/06/2005 | EP1476951A4 Crosstalk mitigation in a modem pool environment |
04/06/2005 | EP1219097B1 Improved method for determining subscriber loop make-up |
04/06/2005 | EP1194678B1 Data transmission in pipeline systems |
04/06/2005 | CN2691170Y Two-way multimedia signal transmission device |
04/06/2005 | CN1605186A Echo canceller having spectral echo tail estimator |
04/06/2005 | CN1604542A Auto-negotiation monitor system, repeating-transmission apparatus, and auto-negotiation monitor method used therefor |
04/06/2005 | CN1604518A A method for transmitting wireless data wideband signal via cable television network |
04/06/2005 | CN1604493A Electronic device with serial ata interface and signal amplitude automatic adjustment method |
04/06/2005 | CN1196253C Self-adaption gain and/or phase regulation control system and method thereof |