| Patents for H04B 3 - Line transmission systems (31,523) |
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| 02/18/2004 | EP1389835A1 Downlink synchronisation method for a point-to-multipoint system with ofdm modulation |
| 02/18/2004 | EP1389370A1 Mobile radio communication system with reference signal emitter and method for base station synchronisation |
| 02/18/2004 | EP1236321B1 Multichannel adaptive equaliser |
| 02/18/2004 | EP0894369B1 Distribution of radio-frequency signals through low bandwidth infrastructures |
| 02/18/2004 | EP0651925B1 Frequency hopping time-diversity communications systems and transceivers for local area networks |
| 02/18/2004 | CN2604028Y Transmission circuit |
| 02/18/2004 | CN1476180A Sound echo inhibitor for hand free voice communication |
| 02/18/2004 | CN1139241C Echo canceler and its method |
| 02/18/2004 | CN1139194C VLF ground wave telephone equipment |
| 02/17/2004 | US6694516 Method used in a telecommunication network, termination unit realizing the latter and a telecommunication network including such a termination unit |
| 02/17/2004 | US6694273 Receiving apparatus, method of compensating for waveform degradation of received signal, apparatus and method for detecting waveform degradation, and apparatus and method for measuring waveform |
| 02/17/2004 | US6694019 Method and apparatus for infinite return loss handler for network echo canceller |
| 02/17/2004 | US6694018 Echo canceling apparatus and method, and voice reproducing apparatus |
| 02/17/2004 | US6694017 Automatic gain control apparatus determining echo return loss |
| 02/17/2004 | US6694010 Recognition of a single frequency tone |
| 02/17/2004 | US6693958 Adaptive channel equalizer having a training mode |
| 02/17/2004 | US6693803 Coupling device for a low-rate carrier current transmission system |
| 02/17/2004 | US6693739 Method for gain equalization, and device and system for use in carrying out the method |
| 02/17/2004 | US6693435 Method and apparatus for measuring a measuring signal and reflected measuring signal |
| 02/17/2004 | CA2307256C Signal quality monitoring system and method |
| 02/17/2004 | CA2187478C Co-channel interference reduction |
| 02/12/2004 | WO2004014056A1 Power line communication system |
| 02/12/2004 | WO2004013642A2 Method and system for transmitting an information signal over a power cable |
| 02/12/2004 | WO2002037679A3 Transmitter circuit comprising timing deskewing means |
| 02/12/2004 | US20040028144 Method and device for injecting a noise signal into a paired wire communication link |
| 02/12/2004 | US20040027152 System and method for transmission-line termination by signal cancellation, and applications thereof |
| 02/12/2004 | US20040027136 Spectral shaping circuit |
| 02/12/2004 | US20040026793 Transceiver having shadow memory facilitating on-transceiver collection and communication of local parameters |
| 02/12/2004 | DE20316940U1 Cellular communication system for fixed and mobile units, exploiting power line communication, includes radio interfaces distributed on street furniture |
| 02/12/2004 | DE20214073U1 Signal transmission and reception method, for household appliances, using suppressed electrical supply to carry signals for the operation of other devices with additional component connected to the interference suppressor circuit |
| 02/12/2004 | DE10234479A1 Transmission system for an ISDN subscriber line has a source of signals with an internal resistor and an end resistor to reduce frequency-dependent signal attenuation |
| 02/12/2004 | DE10061587B4 Anordnung und Verfahren zur Datenkommunikation in einem Energieverteilungsnetz Apparatus and method for data communication in a power distribution network |
| 02/11/2004 | EP1388955A1 Method and apparatus for data transmission |
| 02/11/2004 | EP1388954A2 Method for multiple access and transmission in a point-to-multipoint system on an electrical network |
| 02/11/2004 | EP1388953A1 Localization of customer premises in a local loop based on reflectometry measurements |
| 02/11/2004 | EP1388952A1 Transceiver having shadow memory facilitating on-transceiver collection and communication of local parameters |
| 02/11/2004 | EP1388258A1 Method and apparatus for echo cancellation in digital communications using an echo cancellation reference signal |
| 02/11/2004 | CN2603576Y Spread spectrum signal carrier data collector |
| 02/11/2004 | CN2603575Y Douplex cable intercom for television control director |
| 02/11/2004 | CN1475067A Active terminating device with optional line-receiving and line-driving capabilities |
| 02/11/2004 | CN1475040A Method, system and apparatus for transmission of data on electric network |
| 02/11/2004 | CN1474972A 数据总线 Data Bus |
| 02/11/2004 | CN1138388C Equipment, method and system for radio communication |
| 02/10/2004 | US6691262 Method and apparatus for quality evaluation of cable circuit |
| 02/10/2004 | US6691051 Transient distance to fault measurement |
| 02/10/2004 | US6690915 Booster, monitoring apparatus, booster system, control method and monitoring method |
| 02/10/2004 | US6690791 Method and array for echo compensation in partial bands |
| 02/10/2004 | US6690768 Power cutback configuration of digital subscriber line transceivers using public switched telephone network signaling |
| 02/10/2004 | US6690755 Circuit for detecting digital signals, particularly for a system with an ASI field bus |
| 02/10/2004 | US6690754 Method and apparatus for reducing the computational complexity and relaxing the critical path of reduced state sequence estimation (RSSE) techniques |
| 02/10/2004 | US6690744 Digital line driver circuit |
| 02/10/2004 | US6690742 Adaptively configurable class-A/class-B transmit DAC for transceiver emission and power consumption control |
| 02/10/2004 | US6690722 Method for characterizing frequency translation devices |
| 02/10/2004 | US6690718 Asymmetric digital subscriber line transceiver unit-card and method of controlling the same |
| 02/10/2004 | US6690715 Rake receiver with embedded decision feedback equalizer |
| 02/10/2004 | US6690677 Network for telephony and data communication |
| 02/10/2004 | US6690666 Packet modulation for DSL |
| 02/05/2004 | WO2004012426A1 System and method for speakerphone operation in a communications device |
| 02/05/2004 | WO2004012380A1 Data processor and method for processing data |
| 02/05/2004 | WO2004012358A1 Browser for powerline area network and broadcasting method using the browser |
| 02/05/2004 | US20040025101 Data processing apparatus and data processing method |
| 02/05/2004 | US20040025066 Providing power to a device over a network transmission medium |
| 02/05/2004 | US20040024913 Power line carrier system |
| 02/05/2004 | US20040022368 Localization of customer premises in a local loop based on reflectometry measurements |
| 02/05/2004 | US20040022304 Ultra-wideband communication though local power lines |
| 02/05/2004 | DE10232303A1 Anordnung zur leitungsgebundenen Übertragung von Daten über ein Stromnetzwerk Arrangement for line transmission of data over a network stream |
| 02/05/2004 | DE10133658B4 Verfahren und Einrichtung zur entfernungsunabhängigen Energie-und Zeitinformationsübertragung zwischen einer Empfangseinrichtung und einer Synchronisationseinrichtung Method and apparatus for range-independent energy and time information transmission between a receiver and a synchronization device |
| 02/05/2004 | DE10061586B4 Mobile Kommunikationseinrichtung The mobile communication device |
| 02/05/2004 | DE10061584B4 Anordnung und Verfahren zur Datenkommunikation in einem Energieverteilungsnetz Apparatus and method for data communication in a power distribution network |
| 02/04/2004 | EP1386459A1 Apparatus and method for decision feedback sequence estimation for reduction of error propagation in a decision feedback equalizer |
| 02/04/2004 | EP1386431A2 Clock synchronization over a powerline modem network for multiple devices |
| 02/04/2004 | EP1386415A1 Parametric virtual speaker and surround-sound system |
| 02/04/2004 | EP1203457B1 Reception method and receiver array for a duplex transmission system |
| 02/04/2004 | CN2602551Y High-voltage cable shielded line communication jigger coupling equipment |
| 02/04/2004 | CN1473422A Software definable block adaptive decision feedback equalizer |
| 02/04/2004 | CN1473403A Echo cancellor based quick convergent affine projection device and method |
| 02/03/2004 | US6687632 Testing of CATV systems |
| 02/03/2004 | US6687373 Heusristics for optimum beta factor and filter order determination in echo canceler systems |
| 02/03/2004 | US6687372 Pure delay estimation |
| 02/03/2004 | US6687336 Line qualification with neural networks |
| 02/03/2004 | US6687289 Method for measuring the attenuation in digital transmission lines |
| 02/03/2004 | US6687288 NEXT cancellation for modem pools |
| 02/03/2004 | US6687236 Method for providing echo control devices in communication links to intelligent peripherals |
| 02/03/2004 | US6687235 Mitigation of non-linear signal perturbations using truncated volterra-based non-linear echo canceler |
| 02/03/2004 | US6686832 High frequency network multiplexed communications over various lines |
| 02/03/2004 | CA2267410C Echo path delay estimation |
| 01/29/2004 | WO2004010253A2 System and method for data retrieval in ac power tools via an ac line cord |
| 01/29/2004 | WO2004010083A2 Sensors isolated by an intrinsically safe barrier |
| 01/29/2004 | WO2003098832A3 Time domain equalization using frequency domain operations |
| 01/29/2004 | US20040019451 Interpretation system for interpreting reflectometry information |
| 01/29/2004 | US20040019443 Sequence time domain reflectometry using complementary golay codes |
| 01/29/2004 | US20040019440 System and method for measuring system parameters and process variables using multiple sensors which are isolated by an intrinsically safe barrier |
| 01/29/2004 | US20040018860 Acoustic echo suppressor for hands-free speech communication |
| 01/29/2004 | US20040017912 Controlling echo cancellation |
| 01/29/2004 | US20040017514 Video signal skew |
| 01/29/2004 | DE10230101A1 Verfahren zur Leitungsanpassung Method for line matching |
| 01/29/2004 | DE10061585B4 Anordnung und Verfahren zur Datenkommunikation in einem Energieverteilungsnetz Apparatus and method for data communication in a power distribution network |
| 01/28/2004 | EP1385274A1 Data transmission system for interpreting reflectometry information |
| 01/28/2004 | EP1384321A1 Adaptive equalizer system for short burst modems and link hopping radio networks |
| 01/28/2004 | EP1384320A1 Method and apparatus for reducing electromagnetic radiation |