| Patents for H04B 3 - Line transmission systems (31,523) |
|---|
| 02/17/1994 | WO1994003963A1 Polarity reversing dc power supply for remotely located equipment |
| 02/17/1994 | WO1994003956A1 Reverse-polarity protection by means of a protecting element having a reduced surface |
| 02/17/1994 | WO1994003952A1 Reverse-polarity protection with reduced element surface |
| 02/17/1994 | WO1993003560A1 Generating signals |
| 02/16/1994 | EP0583111A1 Patch plug for cross-connect equipment |
| 02/16/1994 | CN1082269A Exchanger for wire talk-back telephone |
| 02/15/1994 | US5287406 Hybrid circuit having a two-wire/four-wire converting function |
| 02/15/1994 | US5287386 Differential driver/receiver circuit |
| 02/15/1994 | CA2006247C Outbound detector system and method |
| 02/10/1994 | DE4326746A1 Stereo loudspeaker vol. control equipment responsive to ambient noise - provides feedback from both audio channel amplifiers via adaptive digital filters for subtraction from noise microphone signal |
| 02/09/1994 | EP0582406A1 Pump laser control circuit for an optical transmission system |
| 02/08/1994 | US5285475 Decision-feedback equalizer capable of producing an equalized signal at high speed |
| 02/08/1994 | US5285473 System to generate switching criteria and equalize adaptively in data spectrum |
| 02/08/1994 | US5285280 Division method and system for ghost cancellation |
| 02/03/1994 | WO1994003002A1 Frequency hopping time-diversity communications systems and transceivers for local area networks |
| 02/02/1994 | EP0581351A1 Transceiver for the exchange of informations along lines for the transport of electric power |
| 02/02/1994 | EP0581262A1 Auditory prosthesis for adaptively filtering selected auditory component by user activation and method for doing same |
| 02/02/1994 | EP0581261A1 Auditory prosthesis with user-controlled feedback |
| 02/02/1994 | EP0580924A1 Digital filter device |
| 02/02/1994 | CN1081550A Modem including an equalizer for amplitude jitter |
| 02/01/1994 | US5283813 Methods and apparatus particularly useful for blind deconvolution |
| 02/01/1994 | US5283784 Echo canceller processing techniques and processing |
| 02/01/1994 | US5283637 Telecommunication system for transmitting full motion video |
| 01/30/1994 | CA2100015A1 Auditory prosthesis with user-controlled feedback cancellation |
| 01/26/1994 | EP0580499A1 Method for reduction of crosstalk between differential and non-differential lines connected to the terminals of a multipoint connector |
| 01/26/1994 | EP0580457A1 Method and system for transmitting information and wideband analogue and/or digital signals using the power distribution network as transmission medium |
| 01/26/1994 | CN2154564Y Locked safety combined wave filter |
| 01/26/1994 | CN1023626C Cancelling circuit and transmission system for television and telephone use |
| 01/25/1994 | US5282154 System for determining and repairing instability in an IIR filter suitable for use in deghosting apparatus |
| 01/20/1994 | WO1994001957A1 Method for fail-safe operation in a speaker phone system |
| 01/20/1994 | WO1994001949A2 Distributed intelligence engineering casualty and damage control management system using an ac power line carrier-current lan |
| 01/19/1994 | EP0579152A1 Auditory prosthesis, noise suppression apparatus and feedback suppression apparatus having focused adapted filtering |
| 01/18/1994 | US5280526 Transformer-less hybrid circuit |
| 01/18/1994 | US5280525 Adaptive frequency dependent compensation for telecommunications channels |
| 01/18/1994 | US5280473 Modem with echo cancellation |
| 01/18/1994 | US5280255 Input-weighted transversal filter |
| 01/18/1994 | US5280134 Packing element |
| 01/14/1994 | CA2098679A1 Auditory prosthesis, noise suppression apparatus and feedback suppression apparatus having focused adaptive filtering |
| 01/12/1994 | EP0578573A1 Method and arrangement for correcting the losses in a video signal transmitted over a wire pair line |
| 01/12/1994 | EP0578123A2 Fault locator for a transmission line |
| 01/12/1994 | EP0577901A1 Adaptive equalization system and method |
| 01/12/1994 | EP0577861A1 Data transmission by means of electrical distribution lines using frequency hopping |
| 01/12/1994 | EP0577860A1 Data transmission by means of electrical distribution lines using direct sequence spread spectrum |
| 01/12/1994 | EP0577767A1 Data communication network providing power and message information |
| 01/12/1994 | EP0577653A1 Process for finding the transmission properties of an electric line. |
| 01/11/1994 | US5278900 Digital echo canceller comprising a double-talk detector |
| 01/11/1994 | US5278872 System and circuit architecture for echo cancellation and a television receiver comprising same |
| 01/11/1994 | US5278868 Receiver for quadraphase modulation signals |
| 01/11/1994 | US5278867 Receiver system for processing signals received on diversity channels |
| 01/11/1994 | US5278862 Receiver for decoding a spread spectrum transmission |
| 01/11/1994 | US5278780 System using plurality of adaptive digital filters |
| 01/11/1994 | US5278536 Electromagnetic radiation node for use in a network and lighting element incorporating such a node |
| 01/11/1994 | CA1326075C Automatic speech recognition using echo cancellation |
| 01/06/1994 | WO1994000941A1 Margin test apparatus for integrated services digital networks |
| 01/06/1994 | WO1994000922A1 Method and apparatus for objective speech quality measurements of telecommunication equipment |
| 01/06/1994 | WO1994000773A1 Process for detecting a fault on an electric transmission line |
| 01/06/1994 | WO1994000772A1 Process for detecting abnormalities in a line to be examined |
| 01/05/1994 | EP0577301A1 Digital receive line filter circuit with data operated squelch |
| 01/05/1994 | EP0576482A1 Signalling system and method |
| 01/04/1994 | US5276707 Method for optimizing an adaptive filter update coefficient |
| 12/30/1993 | CA2099302A1 Method and apparatus for sample-data receiver squelch |
| 12/29/1993 | EP0576359A1 Method and apparatus for decision feedback equalisation for the block transmission of information symbols |
| 12/29/1993 | CN2151586Y Carrier telephone |
| 12/29/1993 | CN1080099A A method for eliminating acoustic echo in a communication device |
| 12/28/1993 | US5274705 Nonlinear processor for an echo canceller and method |
| 12/28/1993 | US5274674 Method of controlling a threshold decoder for a signal having several levels and being affected by echoes, and television receiver provided with such a decoder |
| 12/28/1993 | US5274670 Method of equalization in digital mobile communication with improved tracking ability |
| 12/28/1993 | US5274669 Signal equalizing method employing test sequences |
| 12/28/1993 | US5274367 Device for in-service monitoring of communication transmission equipment |
| 12/23/1993 | WO1993026106A1 Maximum likelihood sequence estimating device and method therefor |
| 12/23/1993 | DE4220409A1 Verfahren zum Ermitteln von Anomalien einer zu untersuchenden Leitung Method for determining anomalies of a line to be tested |
| 12/23/1993 | CA2113919A1 Maximum likelihood sequence estimator and maximum likelihood sequence estimation method |
| 12/22/1993 | EP0575082A2 Apparatus and method for controlling the power supply unit and/or auxiliary units of a welding machine with the help of radio-frequency signals |
| 12/21/1993 | US5272727 Adaptive maximum likelihood sequence estimator using channel estimators of respective order of impulse response |
| 12/21/1993 | US5272695 Subband echo canceller with adjustable coefficients using a series of step sizes |
| 12/21/1993 | US5272588 Surge protector |
| 12/21/1993 | US5272533 Image control apparatus for a television receiver |
| 12/15/1993 | EP0574076A1 Probe for sampling electrical signals |
| 12/15/1993 | EP0573807A2 Zero power transmission line terminator |
| 12/15/1993 | EP0573412A1 Interconnecting and processing system for facilitating frequency hopping. |
| 12/15/1993 | EP0573411A1 Identifying telephone controller system |
| 12/14/1993 | US5271037 In a line terminating device in a communications system |
| 12/14/1993 | US5270814 Method and apparatus for measuring the linearity of a transmission system by detecting the strength of an intercarrier frequency |
| 12/09/1993 | WO1993025019A1 Compensator for interference between cross polarizations and cross polarization interference eliminator using the compensator |
| 12/09/1993 | WO1993025011A1 Circuit for coupling a transmitter unit to a transmission line |
| 12/09/1993 | DE4318529A1 Application of sec. audio signal for noise suppression in prim. audio signal - filtering sec. signal according to set of coeffts. to generate determined noise signal |
| 12/08/1993 | EP0573108A1 Automatic cable attenuation compensation system |
| 12/08/1993 | EP0573072A2 Power control device for controlling the output level in digitally modulated radio signals |
| 12/08/1993 | EP0572579A1 Device and method for linear listener echo cancellation |
| 12/08/1993 | EP0572382A1 Three wire system for cochlear implant processor. |
| 12/08/1993 | EP0482033B1 Saw device tapped delay line and apparatus using same |
| 12/07/1993 | US5268848 Equalizer adjustment for partial-response maximum-likelihood disk drive systems |
| 12/01/1993 | EP0572175A1 An improved transformer-less hybrid circuit |
| 12/01/1993 | EP0572168A2 Method for matching symbol rates in a communications network |
| 12/01/1993 | EP0571919A1 Demodulating apparatus using transversal equalizer and decision feedback type equalizer |
| 12/01/1993 | EP0571489A1 A device for shutting off an adaptive algorithm |
| 12/01/1993 | EP0544875A4 Apparatus for and method of adjusting signal points, equalizer gains and the like |
| 12/01/1993 | CN2148442Y Voice code digital multifunction lift signal device |
| 11/30/1993 | US5267309 Telephone line unit having programmable read-only memory |
| 11/30/1993 | US5267265 Decision feedback equalizer with expansion and decision circuit |