| Patents for H04B 3 - Line transmission systems (31,523) |
|---|
| 05/13/1993 | WO1993009607A1 A method for the detection of a disable tone signal of an echo canceller |
| 05/13/1993 | DE4236310A1 Data transmitter using current supply network - has microcomputer, followed by PLL circuit for frequency processing |
| 05/12/1993 | EP0541225A1 Equalizer for data receiver apparatus |
| 05/12/1993 | EP0502176A4 Power line communication system |
| 05/12/1993 | CN1072048A Communication signal having time domain pilot component |
| 05/11/1993 | US5210788 Telephone instrument and distribution system |
| 05/11/1993 | US5210774 Adaptive equalization system and method for equalizing a signal in a dce |
| 05/11/1993 | US5210519 Digital data transmission |
| 05/11/1993 | US5210518 Apparatus and method for reducing errors in data caused by noise |
| 05/06/1993 | DE4135790A1 Echo compensation for 2-wire to 4-wire telephone line interface - using artificial echo signal and calculated compensation attenuation to determine residual echo limiting threshold |
| 05/06/1993 | DE4135684A1 Dual-channel line transmission system incorporating status monitoring - uses unemployed line device between employed devices for signal regeneration and provision of status information |
| 05/05/1993 | CN1020529C Voice duplex channel echo cancelling method and canceller |
| 05/04/1993 | US5208723 Solid state electronic protector with pressure release |
| 05/04/1993 | US5208581 High speed communication apparatus for computerized axial tomography (cat) scanners with matching receiver |
| 05/04/1993 | US5207071 Current control apparatus for air-conditioning system |
| 05/04/1993 | CA1317354C Echo canceller |
| 04/29/1993 | WO1993009622A1 Communication signal having a time domain pilot component |
| 04/29/1993 | WO1993008653A1 Directive separator/coupler circuit for medium frequency carrier currents on a low voltage electric line |
| 04/29/1993 | WO1993008652A1 A data communication system of the field bus type with a twin lead for power supply to connected units as well as for data transmission between the units |
| 04/29/1993 | DE4202340C1 Signal regenerating unit for transmission path - includes converting circuit supplying power to signal processor from received signal to be regenerated |
| 04/29/1993 | CA2121333A1 A data communication system of the field bus type with a twin lead for power supply to connected units as well as for data transmission between the units |
| 04/28/1993 | EP0539017A2 Adaptive frequency dependent compensation for telecommunication channels |
| 04/28/1993 | EP0538629A2 Method and arrangement for echo cancelling |
| 04/28/1993 | EP0538466A1 A system for echo cancellation comprising a ghost cancellation reference signal |
| 04/28/1993 | EP0333817B1 Adapter between coaxial cable and twisted pair cables |
| 04/27/1993 | US5206854 Detecting loss of echo cancellation |
| 04/20/1993 | US5204854 Adaptive hybrid |
| 04/20/1993 | CA2005508C Multiplexed synchronous/asynchronous data bus |
| 04/15/1993 | WO1993007693A1 Multiple access telephone extension systems and methods |
| 04/14/1993 | EP0536504A2 Accuracy bootstrapping |
| 04/14/1993 | EP0536305A1 Signal distortion removal |
| 04/13/1993 | US5202882 Method for checking transmission properties of a subscriber line circuit |
| 04/07/1993 | EP0535403A1 Reception of TDMA digital data signal with compensation for channel variations |
| 04/07/1993 | CN2129494Y High frequency carrier wave signal conductor |
| 04/06/1993 | CA1315858C Telecommunications wiring test apparatus and method |
| 04/01/1993 | WO1993006679A1 Handsfree telephone apparatus |
| 03/31/1993 | WO1993007688A1 Viterbi equalizer for radio receiver |
| 03/31/1993 | EP0534868A1 Electronic trip device comprising communication means |
| 03/31/1993 | EP0534489A2 Fractional equaliser for use with a DFE |
| 03/31/1993 | EP0332642B1 Process and circuit for adaptive correction of pulsed signals |
| 03/30/1993 | USRE34205 Adaptive recognizing device |
| 03/30/1993 | US5199047 Receiver for a digital transmission system |
| 03/30/1993 | US5198796 In a communication system |
| 03/27/1993 | CA2082433A1 Electronic trip device comprising communication means |
| 03/24/1993 | EP0532973A2 Method and circuit for cancelling echo signals during digital signal transmission over a two-wire line |
| 03/24/1993 | EP0532717A1 Multimedia high speed network |
| 03/24/1993 | EP0532648A1 Method and apparatus for transmission of data over power lines |
| 03/24/1993 | CN1070296A 300-channel carrier wave device on thin coaxial cable |
| 03/23/1993 | US5197020 Wave digital filter composed of delays and n-port adaptors |
| 03/23/1993 | US5196984 Submarine telecommunications systems |
| 03/23/1993 | CA1314997C Digital computing device for a data transmission installation using code 2b 1q or the like |
| 03/18/1993 | WO1993005597A1 Adaptive echo canceller for voice messaging system |
| 03/18/1993 | WO1993005591A1 Signal level control in a fiber communications system |
| 03/17/1993 | EP0532353A2 High-speed DFE with low residual fading |
| 03/16/1993 | US5195098 Binary data error correction using hint signal |
| 03/16/1993 | US5195049 Digital filter system with anomaly detection and indication |
| 03/16/1993 | US5194832 Transversal equalizer |
| 03/10/1993 | EP0531047A2 Optical line monitor |
| 03/10/1993 | EP0530423A1 Adaptive echo cancellation method and device for implementing said method |
| 03/09/1993 | US5193112 Arrangement and method for rapidly detecting double talk in long distance telephone communications system |
| 03/09/1993 | US5193070 Transversal filter circuit having tap circuits including bidirectional shift registers for serial multiplication |
| 03/09/1993 | US5192231 Power line communications coupler |
| 03/04/1993 | WO1993004539A1 Adaptive hybrid |
| 03/03/1993 | EP0529734A1 Amplifying device for a cable television network |
| 03/03/1993 | EP0529585A2 Channel impulse response estimator for MLSE receiver for rapidly changing channels |
| 03/03/1993 | EP0529144A1 Far-end echo canceller |
| 03/02/1993 | US5191462 Fiber optic transmission distortion compensation |
| 03/01/1993 | CA2050383A1 Power line telecommunication method and system using a very slow modulation of the electrical parameters |
| 02/24/1993 | EP0528738A1 Method and circuit for adapting the coefficients in the equalizer of a modem |
| 02/24/1993 | EP0528491A2 Telecommunication system with a line for digital duplex traffic, comprising an arrangement for tapping the digital duplex traffic, and arrangement to be used in the telecommunication system |
| 02/24/1993 | EP0528436A2 Jitter compensating device for echo canceller |
| 02/23/1993 | US5189664 Listener echo cancellation |
| 02/23/1993 | US5189637 Method and apparatus for preventing erroneous echoelimination and equalization |
| 02/23/1993 | US5189634 Digital signal processing apparatus for detecting a frequency component of digital signals |
| 02/23/1993 | US5187865 Method of coupling lf signals by means of power line communications coupler |
| 02/17/1993 | EP0527692A1 Far-end echo canceller |
| 02/17/1993 | CN1069153A Static small current communication loop |
| 02/16/1993 | US5187803 Regenerative rf bi-directional amplifier system |
| 02/16/1993 | CA2075360A1 Residential electrical wiring allowing transmission and reception of a communication signal, and a method thereof |
| 02/10/1993 | EP0526822A1 Remote intervention method in a shaft of a deep disposal side of nuclear waste |
| 02/10/1993 | EP0324012B1 Shorted-coaxial-cable detector for local-area networks |
| 02/09/1993 | US5185591 Power distribution line communication system for and method of reducing effects of signal cancellation |
| 02/03/1993 | EP0525920A1 Circuit for remote power supply of 2-wire field transmitters |
| 02/03/1993 | EP0525703A1 Connector for local networks |
| 02/03/1993 | EP0525058A1 Optical communications link fault signalling. |
| 01/28/1993 | DE4124663A1 Pilot signal controlled HF amplifier for coaxial cable network carrying TV and audio broadcast signals - has control voltage generator, adjusting first to medium amplification on slow pilot signal failure |
| 01/27/1993 | EP0524597A1 Iterative method for reducing intersymbol interference |
| 01/27/1993 | EP0524560A2 Method and apparatus for updating coefficients in a complex adaptive equalizer |
| 01/27/1993 | EP0524559A2 Carrier phase recovery for an adaptive equalizer |
| 01/21/1993 | WO1993001661A1 Circuit for a line simulation device |
| 01/21/1993 | WO1993001660A1 Power distribution line communication system for reducing effects of signal cancellation |
| 01/21/1993 | CA2112700A1 Circuit for a line simulation device |
| 01/20/1993 | CN1068228A System and method for calculating channel gain and noise variance of communication channel |
| 01/19/1993 | US5181228 System and method for phase equalization |
| 01/19/1993 | US5181198 Coordinated transmission for two-pair digital subscriber lines |
| 01/13/1993 | EP0522244A2 Method and apparatus for transmitting signals on a transmission line |
| 01/13/1993 | EP0521868A1 Digital virtual earth active cancellation system |
| 01/07/1993 | WO1993000761A1 Apparatus for and method of adjusting signal points, equalizer gains and the like |
| 01/07/1993 | EP0572382A4 Three wire system for cochlear implant processor. |
| 01/07/1993 | EP0521342A2 Equalizer for optical information transmitting systems |