| Patents for H04B 3 - Line transmission systems (31,523) |
|---|
| 07/02/1997 | EP0782260A2 Equalizer filter configuration for processing real-valued and complex-valued signal samples |
| 07/02/1997 | CN2257422Y Multifunctional teaching-aid testing and monitoring device |
| 07/01/1997 | US5644635 Method of and device for echo cancellation |
| 07/01/1997 | US5644603 Maximum-likelihood sequence estimator with variable number of states |
| 07/01/1997 | US5644598 Switching arrangement for coupling a transmitting unit to a transmission line |
| 07/01/1997 | US5644597 Adaptive equalizer and adaptive diversity equalizer |
| 07/01/1997 | US5644595 Method and apparatus for an adaptive three tap transversal equalizer for partial-response signaling |
| 07/01/1997 | US5644574 Noise canceling single return conductor for multiple signal carrying conductors |
| 07/01/1997 | US5644466 Power feed circuit for use in a submarine cable branching unit |
| 07/01/1997 | US5644307 Modulation method, recording method, reproducing method, recording and reproducing apparatus, recording and reproducing method, and reproducing apparatus |
| 07/01/1997 | CA2093744C Method of performing convergence in a, least mean square, adaptive filter, echo canceller |
| 06/29/1997 | CA2190896A1 Device and method for providing high speed data transfer through a drop line of a power line carrier communication system |
| 06/26/1997 | WO1997023058A1 Power line communications system with driver circuit |
| 06/26/1997 | WO1997023057A1 Power line communications system with selective program reception |
| 06/26/1997 | WO1997023056A1 Power line audio system |
| 06/26/1997 | WO1997023055A1 Method and device for echo cancellation using power estimation in a residual signal |
| 06/26/1997 | DE19627027C1 Sheath wave trap for movable cable especially of NMR local antenna |
| 06/26/1997 | CA2240726A1 Method and device for echo cancellation using power estimation in a residual signal |
| 06/25/1997 | EP0780994A2 Feeding path switching circuit |
| 06/25/1997 | CN1152830A Noise controllable mobile telephone |
| 06/25/1997 | CN1152828A Echo canceler gain tracker for cellular modems |
| 06/25/1997 | CN1035301C Static capacitance wireless broadcasting method |
| 06/24/1997 | US5642381 Signal equalizer |
| 06/19/1997 | WO1997022186A1 Rf communication signal distribution system and method |
| 06/19/1997 | WO1997022184A2 Bi-directional signal transmission system |
| 06/18/1997 | EP0779732A2 Multi-point voice conferencing system over a wide area network |
| 06/18/1997 | CN1152221A Circuit structure of non-polar two-line interphone |
| 06/17/1997 | US5640418 Equalizer, reception system having an equalizer, data conversion method and apparatus thereof |
| 06/17/1997 | US5640117 Digital signal transmission circuit |
| 06/11/1997 | EP0778683A2 Terminal equipment for telecommunications and information processing |
| 06/11/1997 | CN1151672A Echo Canceling method and apparatus for data over cellular |
| 06/11/1997 | CN1151670A Echo canceling method and apparatus for data over cellular |
| 06/10/1997 | US5638439 Adaptive filter and echo canceller |
| 06/10/1997 | US5638409 Data receiving device for reproducing a received symbol from a received data signal |
| 06/10/1997 | US5638402 Fast data transfer bus |
| 06/10/1997 | US5638400 Method for updating an equalization speed of an equalizer |
| 06/10/1997 | US5638311 Filter coefficient estimation apparatus |
| 06/04/1997 | EP0777340A2 Method and system for echo cancelling in telephone installations |
| 06/04/1997 | EP0777339A1 Signal transmission circuit |
| 06/04/1997 | EP0776567A1 Analysis of audio quality |
| 06/04/1997 | EP0776566A1 Test method |
| 06/04/1997 | CN1151229A In-line predistorted for linearization of electronic and optical signals |
| 06/04/1997 | CN1151227A Device for supply cabin power using bus connector without transmitter |
| 06/03/1997 | US5636323 Speech communication apparatus having an echo canceler |
| 06/03/1997 | US5636151 Adaptive filter capable of removing a residual echo at a rapid speed |
| 06/03/1997 | US5636048 Equalizing amplifier, receiver using the same and preamplifier |
| 06/03/1997 | US5635896 Locally powered control system having a remote sensing unit with a two wire connection |
| 06/03/1997 | US5635864 Comparator circuit |
| 05/28/1997 | EP0776119A2 Method and apparatus for simultaneous voice/data transmission |
| 05/28/1997 | EP0776118A2 Echo canceller |
| 05/28/1997 | EP0775406A1 System for the fail-safe transmission of data via a differential bus |
| 05/28/1997 | EP0775390A1 Device for correcting the amplitude/frequency characteristic of a signal from a cable, and frequency equaliser therefor |
| 05/28/1997 | EP0775380A1 Telecontrol system with data transmission via the shielding of power transmission cables |
| 05/28/1997 | CA2190791A1 Method and apparatus for simultaneous voice/data transmission |
| 05/27/1997 | US5633979 Signal processing system involving a least squares method |
| 05/27/1997 | US5633936 Method and apparatus for detecting a near-end speech signal |
| 05/27/1997 | US5633863 Echo canceler |
| 05/27/1997 | US5632272 Signal processing apparatus |
| 05/24/1997 | CA2191118A1 Echo canceller |
| 05/22/1997 | WO1997018642A1 Bi-directional amplifiers and signal channels for frequency division duplex communications |
| 05/22/1997 | WO1997018641A1 Echo cancellation for modems |
| 05/22/1997 | WO1997018640A1 Echo cancellation for modems |
| 05/21/1997 | EP0774187A1 Electromagnetic interference isolator |
| 05/21/1997 | EP0774185A1 Bus node |
| 05/21/1997 | EP0688476B1 Digital time signal filtering method and device for transmission channel echo correction |
| 05/21/1997 | EP0651925A4 Frequency hopping time-diversity communications systems and transceivers for local area networks. |
| 05/20/1997 | US5631957 Band-energy near-end echo reducer for tonal signalling detectors |
| 05/20/1997 | US5631923 Two-wire full-duplex modem |
| 05/20/1997 | US5631900 Double-Talk detector for echo canceller |
| 05/20/1997 | US5631899 Acoustic echo canceler |
| 05/15/1997 | WO1997017795A1 Energy monitoring and control system using reverse transmission on ac line |
| 05/15/1997 | WO1997017767A1 Cross talk interference cancellation in twisted pairs |
| 05/15/1997 | CA2236852A1 Noise cancellation in twisted pairs |
| 05/14/1997 | EP0773643A2 An interference reduction scheme and method |
| 05/14/1997 | EP0773642A2 Interference reduction in telecommunications systems |
| 05/14/1997 | EP0773139A2 Control and monitoring device for the functions of a trailer |
| 05/14/1997 | EP0707767B1 Systems with increased information rates using embedded sample modulation and predistortion equalization |
| 05/14/1997 | CN1149945A Method and apparatus for reducing residual far-end echo in voice communication networks |
| 05/14/1997 | CN1149794A Equipment for measuring signal transmission time of a digit transmission device |
| 05/07/1997 | EP0772320A2 Device for signal transmission via a field bus |
| 05/07/1997 | EP0772309A2 Interference reduction in telecommunication systems |
| 05/07/1997 | CN2253891Y Sampling controller for power line carrier data transmission system |
| 05/07/1997 | CN1149360A Improved ADSL compatible Discrete multi-tone apparatus |
| 05/06/1997 | US5627898 In an audio/video duplication facility |
| 05/06/1997 | US5627885 System for, and method of, transmitting and receiving through telephone lines signals representing data |
| 05/06/1997 | US5627481 Fast transmission line implemented with receiver, driver, terminator and IC arrangements |
| 05/06/1997 | US5626497 Modular jack type connector |
| 05/06/1997 | CA2094639C Transformer-less hybrid circuit |
| 05/02/1997 | EP0771079A2 Data transmission device |
| 05/02/1997 | EP0770286A1 Method and device for transmitting information between a plurality of local units connected to different electricity distribution networks |
| 05/02/1997 | EP0770285A1 Coilless bus coupler for an on-board power supply |
| 05/02/1997 | EP0573412B1 Interconnecting and processing method for facilitating frequency hopping. |
| 05/01/1997 | WO1997016046A1 Variable length burst transmission over the physical layer of a multilayer transmission format |
| 05/01/1997 | WO1997015989A1 Digital phase reversal detector |
| 04/29/1997 | US5625863 Video distribution system using in-wall wiring |
| 04/29/1997 | US5625646 Method, device, DSP and modem for efficient echo canceler phase roll tracking |
| 04/29/1997 | US5625505 Method of and apparatus for regenerating partial-response record signal |
| 04/24/1997 | WO1997015124A1 An adaptive dual filter echo cancellation method |
| 04/23/1997 | EP0769867A2 Subband acoustic echo canceller |
| 04/23/1997 | CN2253074Y Door casement with walkie-talkie |