| Patents for H04B 3 - Line transmission systems (31,523) |
|---|
| 05/04/1994 | EP0594755A1 Power distribution line communication system for reducing effects of signal cancellation |
| 05/04/1994 | CN1086358A Reversible damper |
| 05/03/1994 | US5309481 Apparatus for adjusting signal points, equalizer coefficients and the like |
| 05/01/1994 | CA2102018A1 Methods and apparatus for automatic switching between transmission of a spectrally redundant outgoing signal and reception of an incoming signal |
| 04/28/1994 | WO1994009572A1 Transmission network and filter therefor |
| 04/28/1994 | WO1994009564A1 Digital equalization in optical recording systems |
| 04/28/1994 | DE4236272A1 Echokompensationsvorrichtung und 4/2-Drahtschnittstelle mit einer solchen Echokompensationsvorrichtung Echo compensation device, and 4/2-wire interface with such echo compensation device |
| 04/27/1994 | EP0594487A1 Apparatus for measuring and regulating of signals on the returnpath of a bidirectional communicationsnetwork and its use |
| 04/27/1994 | EP0594344A1 Cascaded distortion compensation for analog optical systems |
| 04/27/1994 | CN2163484Y High frequency convertible balancer |
| 04/26/1994 | US5307416 Bias circuit for cable interconnects |
| 04/26/1994 | US5307409 Apparatus and method for fault detection on redundant signal lines via encryption |
| 04/26/1994 | US5307405 Network echo canceller |
| 04/26/1994 | US5307375 Two stage accumulator for use in updating coefficients |
| 04/26/1994 | US5307374 Digital receiver with reduced memory requirement for Viterbi equalization |
| 04/20/1994 | EP0592747A1 Adaptive equalizing apparatus and method for token ring transmission systems using unshielded twisted pair cables |
| 04/20/1994 | CN2162746Y Restitution apparatus for delivering figure carrier with power line |
| 04/20/1994 | CN2162745Y Modulation apparatus for delivering figure carrier with power line |
| 04/20/1994 | CN1085705A Network echo canceller |
| 04/20/1994 | CN1085702A Transmission method for low-power audio signal and its system |
| 04/19/1994 | US5305379 Semiconductor integrated device |
| 04/19/1994 | US5305351 Adaptive equalizer which carries out an equalization operation with reference to a magnitude of fading |
| 04/19/1994 | US5305350 Multimedia high speed network |
| 04/19/1994 | US5305309 Echo canceller |
| 04/19/1994 | US5305307 Adaptive acoustic echo canceller having means for reducing or eliminating echo in a plurality of signal bandwidths |
| 04/19/1994 | US5304850 Power line carrier frequency breaker |
| 04/14/1994 | WO1994008418A1 Network echo canceller |
| 04/14/1994 | WO1994008417A1 Radio frequency interference filter |
| 04/14/1994 | WO1994008402A1 Method and apparatus of estimating channel quality in a receiver |
| 04/14/1994 | WO1994008398A1 Line driver circuit |
| 04/14/1994 | CA2124203A1 Radio frequency interference filter |
| 04/13/1994 | CN1024239C Duplex wired intercom circuit |
| 04/12/1994 | US5303266 Multimedia high speed network |
| 04/12/1994 | US5303264 Adaptive equalizer using recursive least-squares algorithm and method therefor |
| 04/12/1994 | US5303228 A far-end echo canceller with a digital filter for simulating a far end echo containing a frequency offset |
| 04/12/1994 | US5303226 Reception of TDMA digital data signal with compensation for channel variations |
| 04/12/1994 | US5303202 Method for detecting breaks in geophone cables for seismic data acquisition system |
| 04/12/1994 | US5303177 Method and device for performing an approximate arithmetical division |
| 04/12/1994 | US5303173 Adaptive digital filter, and method of renewing coefficients thereof |
| 04/12/1994 | US5302922 Equalizer for optically transmitted analog information signals |
| 04/06/1994 | EP0590846A2 Image processor for target detection and tracking |
| 04/06/1994 | EP0590127A1 Electrical network for emulating a transmission line |
| 04/06/1994 | CN2161023Y Auto-controller for acoustic frequency signal amplifying |
| 04/05/1994 | US5301208 Transformer bus coupler |
| 04/05/1994 | US5301207 Test apparatus and process for digital data service system |
| 04/05/1994 | US5300900 High-frequency limiter and switch-limiter circuit having improved recovery time |
| 04/05/1994 | US5299956 Low cross talk electrical connector system |
| 04/05/1994 | CA1328224C Oral compositions |
| 03/31/1994 | WO1994007308A1 Adaptive filter |
| 03/31/1994 | DE4333157A1 Active vibration damping system for motor vehicle - with suppression stage in vibration generator drive control responsive to detected parameter level |
| 03/30/1994 | EP0589768A1 Filter apparatus for sequence estimation equaliser |
| 03/30/1994 | EP0589767A1 Method for determining the transmittance of a filter circuit for transforming a filter impulse response in a minimum phase response and filter circuit using this method |
| 03/29/1994 | US5297917 Method of acting remotely in a mine shaft, in particular in a site for deep storage of nuclear wastes |
| 03/26/1994 | CA2106702A1 Filtering device for a sequence estimation equalizer |
| 03/24/1994 | DE4311088C1 Double-T structure HF cut=off filter - creates symmetrical pass band for low voltage networks used for carrier frequency data transmission. |
| 03/23/1994 | EP0588161A2 Adaptive equalizer method and apparatus |
| 03/23/1994 | CN1084337A Method for setting up alarm communication system |
| 03/22/1994 | US5297171 Receiver comprising at least two receive branches |
| 03/22/1994 | US5297071 Arithmetic circuit, and adaptive filter and echo canceler using it |
| 03/17/1994 | WO1994006233A1 Combined equalizer and roll-off filter |
| 03/17/1994 | WO1994006228A1 Adaptive data recovery for spread spectrum systems |
| 03/16/1994 | EP0587367A1 Adapter for video and audio transmission |
| 03/16/1994 | EP0586554A1 Binary data error correction using hint signal |
| 03/15/1994 | US5295186 Termination circuit for a two-wire transmission line |
| 03/15/1994 | US5295159 Coordinated coding for digital transmission |
| 03/15/1994 | US5295136 Method of performing convergence in a, least mean square, adaptive filter, echo canceller |
| 03/15/1994 | US5295130 Apparatus and method for signal reproduction |
| 03/15/1994 | CA1327840C Auto-threshold/adaptive equalizer |
| 03/10/1994 | DE4230046A1 Adaptive equalising of transmission signal interference - transmitting reference signal(s) from transmit side and equalising at receiver side |
| 03/09/1994 | EP0586075A1 Loudspeaker systems |
| 03/09/1994 | EP0585634A1 Interface circuit between a telecommunications apparatus and a telephone line |
| 03/09/1994 | EP0585237A1 Dynamical system analyser |
| 03/09/1994 | CN2158601Y Arrangement for extending the distance telephone loop |
| 03/09/1994 | CN1083641A Direct capacitance wireless broadcasting method |
| 03/08/1994 | US5293421 Summing amplifier with a complex weighting factor and interface including such a summing amplifier |
| 03/08/1994 | US5293402 Wideband digital equalizers for subscriber loops |
| 03/08/1994 | US5293401 Equalizer for linear modulated signal |
| 03/08/1994 | US5293260 Optical repeater off-state supervisory method and device therefor |
| 03/08/1994 | CA2016179C One out of n checking apparatus and method |
| 03/03/1994 | WO1994005092A1 Apparatus and method for crosstalk cancellation in data correctors |
| 03/03/1994 | WO1994005091A1 Distribution line carrier transmission system |
| 03/03/1994 | WO1994005080A1 Neural filter architecture for the non-linear, adaptative elimination of disturbing interferences |
| 03/03/1994 | WO1994001949A3 Distributed intelligence engineering casualty and damage control management system using an ac power line carrier-current lan |
| 03/02/1994 | EP0585095A2 Signal processing system having intersymbol-interference cancelling means and method of same |
| 03/02/1994 | EP0584918A1 Method of detecting the disconnection of a transmission line |
| 03/02/1994 | EP0584861A1 Transmission system with a subband echo canceller and subband coding apparatus |
| 03/01/1994 | US5291522 Device and method for estimating sampled value of impulse response and signal reproduction system using the device |
| 03/01/1994 | US5291520 Methods and apparatus employing distribution preserving Tomlinson precoding in transmission of digital data signals |
| 03/01/1994 | US5291499 Method and apparatus for reduced-complexity viterbi-type sequence detectors |
| 03/01/1994 | US5291326 Optical signal transmission system, particularly optical cable television system, with monitoring and service-channel facilities |
| 03/01/1994 | US5291072 Crosstalk-reduced transmission device |
| 02/23/1994 | EP0583927A1 Dynamically adaptive equalizer system and method |
| 02/23/1994 | EP0583716A2 Process for bidirectional signal transmission |
| 02/23/1994 | EP0583398A1 Drive amplifier for power line communications |
| 02/23/1994 | EP0583397A1 Power line coupling network |
| 02/23/1994 | CN1082474A Apparatus and method for controlling the power supply unit and/or auxiliary units of a welding machine with the help of radio-frequency signals |
| 02/22/1994 | US5289539 Echo canceller using impulse response estimating method |
| 02/22/1994 | US5289500 Signal conditioner |
| 02/22/1994 | US5289498 Adaptive data recovery for spread spectrum systems |
| 02/22/1994 | US5289476 Transmission mode detection in a modulated communication system |