| Patents for H04B 3 - Line transmission systems (31,523) |
|---|
| 02/18/1992 | US5089886 Device for the remote transmission of signals and in particular video signals |
| 02/18/1992 | CA2049403A1 Transversal equalizer |
| 02/12/1992 | EP0470185A1 Power-line communication apparatus. |
| 02/12/1992 | CN2096170U Multi-path call double direction communication device |
| 02/12/1992 | CN2096169U Small coaxial cable 300 path with carrier |
| 02/11/1992 | US5088110 Baseband-controlled passband equalizing arrangement |
| 02/11/1992 | US5088109 Circuit arrangement for the equalization of digital signals received in analog form |
| 02/11/1992 | US5087832 Balanced signal receiving circuit |
| 02/11/1992 | US5087809 Spectrally selective dithering and color filter mask for increased image sensor blue sensitivity |
| 02/11/1992 | CA1295728C Transmission device, notably video signals |
| 02/05/1992 | CN1058500A Optical fiber telecommunication line comprising amplifiers of transmitted signals and amplifiers for said line |
| 02/04/1992 | WO1992002994A1 Residual echo elimination with proportionate noise injection |
| 02/04/1992 | US5086437 Agc device for producing a gain controlled and d.c. offset removed signal |
| 02/04/1992 | CA1295393C2 Spread spectrum power line communications |
| 02/04/1992 | CA1295392C Data transmission system comprising a decision feedback equalizer and usingpartial-response techniques |
| 02/04/1992 | CA1295381C Methods and apparatus for providing reciprocal impedance conversion |
| 02/04/1992 | CA1295371C Data communication system having level control means |
| 01/29/1992 | EP0468021A1 Method and device for single measurement to display and qualify the linearity of a transmission channel |
| 01/28/1992 | US5084866 Transversal filter echo canceller |
| 01/28/1992 | US5084865 Echo canceller having fir and iir filters for cancelling long tail echoes |
| 01/28/1992 | US5084864 Broadband, inductively coupled, duplex, rf transmission system |
| 01/22/1992 | EP0467583A1 Repeater |
| 01/22/1992 | EP0467338A2 Ghost cancelling circuit |
| 01/22/1992 | EP0467163A1 Hybrid ciruit having a two-wire/four-wire converting function |
| 01/15/1992 | EP0466434A2 Waveform equalizing filter unit |
| 01/15/1992 | EP0465851A2 QAM receiver compensating both linear and non-linear distortion |
| 01/15/1992 | CN2093475U Subscriber's terminal box for wire broadcasting transmitted with electric main zero line |
| 01/14/1992 | US5081653 Automatic gain control circuit for multilevel duobinary AM/PSK modulated signals |
| 01/14/1992 | US5081641 Interconnecting and processing system for facilitating frequency hopping |
| 01/14/1992 | US5081440 Bus coupler |
| 01/09/1992 | DE4021206A1 Two=way communication system - provides link between door located microphone and loudspeaker and telephone to serve as entry phone |
| 01/08/1992 | EP0464818A2 Device and method for estimating sampled value of impulse response and signal reproduction system using the device |
| 01/08/1992 | EP0464500A2 Echo canceler having adaptive digital filter unit associated with delta-sigma modulation circuit |
| 01/08/1992 | CN1057745A Signal distortion removal |
| 01/06/1992 | CA2046172A1 Device and method for estimating sampled value of impulse response and signal reproduction system using the device |
| 01/02/1992 | EP0463341A1 Digital data transmission with simultaneous transmission over a single line |
| 01/02/1992 | EP0463316A1 Self-adjusting impedance matching driver |
| 01/02/1992 | DE4020807A1 Display field for information processing system - has input and output modules in groups connected onto common bus |
| 12/31/1991 | US5077630 Integrated services digital network terminating resistor with line fault protector |
| 12/30/1991 | WO1992000646A1 Signal distortion removal |
| 12/30/1991 | CA2103925A1 Deghosting apparatus using pseudorandom sequences |
| 12/27/1991 | EP0462654A1 Method to control a threshold decoder for a multilevel signal and television receiver with such a decoder |
| 12/26/1991 | WO1991020149A1 Echo canceller with adaptive voice switch attenuation |
| 12/25/1991 | CN1015224B Decoding equalizer |
| 12/24/1991 | CA1293534C Decision-directed control circuit |
| 12/19/1991 | DE4114597A1 Adjustable, active line equaliser for transmission over coaxial cable - has control voltages from control for changing diode capacities, acting as reactances in negative feedback emitter circuits |
| 12/18/1991 | EP0461931A2 Adaptive equalizer capable of effectively removing a remaining fading in an equalized signal |
| 12/18/1991 | EP0307455B1 Analog/digital adaptive line enhancer |
| 12/17/1991 | US5073902 Device for receiving information travelling on two capacitively coupled information transmission lines, in particular for a motor vehicle |
| 12/12/1991 | WO1991019360A2 Method and apparatus for transmission of data over power lines |
| 12/12/1991 | CA2084403A1 Method and apparatus for signalling |
| 12/11/1991 | EP0460223A1 Board for surge absorbing device of communication line |
| 12/09/1991 | WO1992001346A2 Multimedia high speed network |
| 12/09/1991 | CA2083147A1 Multimedia high speed network |
| 12/04/1991 | EP0459687A2 Traveling wave type transversal equalizer |
| 12/04/1991 | CN1056784A Line breakdown detecting instrument |
| 12/03/1991 | US5070522 Combined signal and power distribution system |
| 12/03/1991 | CA1292792C Responder unit for energy management system |
| 11/29/1991 | CA2043144A1 Decision feedback equalizer with offset allowance |
| 11/28/1991 | WO1991018453A1 Audio signal processor circuit |
| 11/28/1991 | WO1991003896A3 Computer communications system |
| 11/26/1991 | US5068890 Combined signal and electrical power distribution system |
| 11/26/1991 | US5068875 Adaptive loop gain phase filter |
| 11/26/1991 | US5068667 Cross-polarization interference canceller |
| 11/26/1991 | CA1292520C Jitter-invariant switched capacitor pulse shaper |
| 11/21/1991 | EP0457379A2 Broadband, inductively coupled, duplex, RF transmission system |
| 11/21/1991 | DE4015672A1 Cable connected remote DC supply for intermediate repeaters |
| 11/20/1991 | CN1014855B Distant monitoring and controlling system |
| 11/19/1991 | US5067132 One out of n checking apparatus and method |
| 11/19/1991 | US5066939 Method and means of operating a power line carrier communication system |
| 11/19/1991 | US5066139 Coupler verification test circuit |
| 11/14/1991 | DE4014796A1 Linearising transfer characteristic function - processing signal by compensation circuit based on filtered components for electronic component or circuit |
| 11/13/1991 | EP0456242A1 Automatic equalizer and semiconductor integrated circuit containing such an equalizer |
| 11/13/1991 | EP0455910A2 Distortion compensation by adaptively setting a decision threshold, for fibre optic systems |
| 11/12/1991 | US5065411 Diversity receiving system for use in digital radio communication with means for selecting branch by estimating propagation path property |
| 11/12/1991 | US5065242 Deghosting apparatus using pseudorandom sequences |
| 11/12/1991 | US5065152 Two-wire loop electric circuit arrangement |
| 11/09/1991 | CA2016320A1 Remote control for ceiling light and fan combination |
| 11/06/1991 | EP0454926A2 Drop testing in fiber to the home systems |
| 11/05/1991 | US5063351 Digital signal processing relating to near-end crosstalk cable measurements |
| 11/05/1991 | CA1291805C Wire tap detection device |
| 10/31/1991 | WO1991016770A1 Data communication system |
| 10/30/1991 | EP0454242A1 Digital echo canceller comprising a double-talk detector |
| 10/30/1991 | CN2087844U Power line carrier telephone system |
| 10/30/1991 | CN1055848A Interconnecting and processing system for facilitating frequency hopping |
| 10/30/1991 | CN1014575B Adjustable echo compensator |
| 10/29/1991 | US5062102 Echo canceller with means for determining filter coefficients from autocorrelation and cross-correlation coefficients |
| 10/29/1991 | US5061922 Method of monitoring changes of state of a power transmission system by interruption signal transmission |
| 10/28/1991 | CA2041079A1 Digital echo canceller comprising a double-talk detector |
| 10/23/1991 | EP0453282A2 Digital subband encoding apparatus |
| 10/23/1991 | EP0453201A1 Control for adaptive equalizer |
| 10/22/1991 | US5060189 Semiconductor device with reduced crosstalk between lines |
| 10/22/1991 | US5060088 Adaptive equalization for recording systems using partial-response signaling |
| 10/22/1991 | US5059918 Procedure and apparatus for amplification of a burst signal |
| 10/21/1991 | WO1991016773A1 Optical communications link fault signalling |
| 10/16/1991 | EP0451759A2 Method for testing the transmission characteristics of a subscriber line circuit |
| 10/15/1991 | US5058130 Jitter equalizer for digital transmission filter |
| 10/15/1991 | US5057786 Quadrature amplitude modulation wave demodulator provided with band-pass filters for fixed equalizer |
| 10/09/1991 | EP0224556B1 Ensemble modem structure for imperfect transmission media |
| 10/09/1991 | EP0211059B1 Wall coating enabling the supply of an electric receiver with variable positions on the wall |