| Patents for H04B 3 - Line transmission systems (31,523) |
|---|
| 10/12/1994 | CN2179669Y Strong antijamming, far distance carrier telephone |
| 10/12/1994 | CN1093510A 感应式信息传输方法及其装置 Inductive method and device information transmission |
| 10/11/1994 | US5355114 In a power line communications system |
| 10/11/1994 | CA2001635C Analogic digital optoelectromagnetic counting system for fluids |
| 10/11/1994 | CA1332455C Data transmission with improved message format |
| 10/11/1994 | CA1332454C Gateway for use in load control system |
| 10/11/1994 | CA1332452C Digital communication system using partial response and bipolar coding techniques |
| 10/11/1994 | CA1332451C Echo cancellation |
| 10/11/1994 | CA1332449C Echo compensator |
| 10/05/1994 | EP0618685A2 Variable equalizer with fan-shaped characteristic and variable equalizer arrangement |
| 10/05/1994 | EP0617860A1 Inbound communications using electricity distribution network |
| 10/04/1994 | US5353310 Data transmission system with reduced error propagation |
| 10/04/1994 | US5353306 Tap-weight controller for adaptive matched filter receiver |
| 10/04/1994 | US5353305 Initial training apparatus for use in a transmitter and receiver apparatus |
| 10/04/1994 | US5353279 Echo canceler |
| 10/04/1994 | US5353147 Identification of transmission characteristic |
| 09/29/1994 | WO1994022257A1 Secure access telephone extension system and method |
| 09/28/1994 | EP0617521A2 Iterative equalisation of digital signals degraded by multipath fading |
| 09/28/1994 | EP0617196A2 Digital mud pulse telemetry system |
| 09/27/1994 | US5351291 Adaptive echo cancellation method and device for implementing said method |
| 09/27/1994 | US5351272 Communications apparatus and method for transmitting and receiving multiple modulated signals over electrical lines |
| 09/27/1994 | US5351017 Fixing device for a noise absorber |
| 09/27/1994 | US5350324 Telecommunications circuit assemblies of wires and connectors |
| 09/27/1994 | CA1332187C Echo canceller with short processing delay and decreased multiplication number |
| 09/21/1994 | EP0615674A1 Network echo canceller |
| 09/21/1994 | CN1092577A 时钟恢复电路 Clock recovery circuit |
| 09/20/1994 | US5349644 Distributed intelligence engineering casualty and damage control management system using an AC power line carrier-current lan |
| 09/20/1994 | CA2038653C Method for the determination of fir filter coefficients in equalizers |
| 09/20/1994 | CA2024123C Integrated circuit with balanced connecting circuit |
| 09/15/1994 | WO1994021076A1 Method and structure for coupling power-line carrier current signals using common-mode coupling |
| 09/15/1994 | WO1994021041A1 Digital time signal filtering method and device for transmission channel echo correction |
| 09/15/1994 | WO1994021039A1 Receive side pulse width controlled adaptive equalizer |
| 09/15/1994 | WO1994021007A1 A connector element for telecommunication |
| 09/14/1994 | EP0615350A1 Method of identifying an unknown system with a band-splitting adaptive filter and a device thereof |
| 09/14/1994 | EP0615340A1 Low-delay subband adaptive filter |
| 09/14/1994 | EP0615224A2 A method of determining the sound transfer characteristic of an active noise control system |
| 09/14/1994 | EP0614588A1 Radio frequency interference filter |
| 09/14/1994 | CN1092226A Power line using telephone network system |
| 09/13/1994 | US5347549 Method and apparatus for interfacing between a twisted pair and an intelligent cell |
| 09/06/1994 | US5345496 Remote line test facility |
| 09/06/1994 | US5345476 Interference canceller with feedforward transversal filter having switched tap-gain coefficients |
| 09/06/1994 | CA2037605C Automatic channel selection in a mobile radio for telephone interconnect |
| 09/04/1994 | CA2116807A1 Control system for controlling a camera and method thereof |
| 09/01/1994 | WO1994019754A1 Method for adjusting an adaptive exponential filter |
| 09/01/1994 | CA2155519A1 Method for adjusting an adaptive exponential filter |
| 08/31/1994 | EP0613318A1 Microphone apparatus |
| 08/31/1994 | EP0612447A1 Adaptive filter. |
| 08/31/1994 | CN1091573A Method and apparatus for detecting telephone line states in electronic switching system |
| 08/30/1994 | US5343522 Adaptive sparse echo canceller using a sub-rate filter for active tap selection |
| 08/30/1994 | US5343521 Device for processing echo, particularly acoustic echo in a telephone line |
| 08/30/1994 | US5343496 Interference suppression in CDMA systems |
| 08/30/1994 | US5343335 Signal processing system having intersymbol-interference cancelling means and method of same |
| 08/30/1994 | US5343320 Pump laser control circuit for an optical transmission system |
| 08/30/1994 | US5343236 Automatic cable attenuation compensation system |
| 08/30/1994 | US5343158 Amplifier device for a cable television distribution network |
| 08/25/1994 | DE4405817A1 Automatic equaliser |
| 08/25/1994 | DE4302848A1 System for transmitting pulses, in particular control pulses, on a radio-frequency basis |
| 08/24/1994 | EP0612188A1 Television signals transmission device |
| 08/24/1994 | EP0612161A2 Integrated power and signal transmission system |
| 08/24/1994 | EP0612149A1 Method for adjusting an adaptive exponential filter and adaptive exponential filter |
| 08/24/1994 | CN2175497Y Extension of safety control device for high building |
| 08/23/1994 | US5341419 Capacitive unbalancing for reduction of differential mode cross-talk |
| 08/23/1994 | CA2025370C Transversal type automatic equalizer with tap coefficient protection |
| 08/23/1994 | CA1331645C Apparatus and method for a secure and diagnosable antijabber communication circuit |
| 08/18/1994 | WO1994018803A1 Telemetry and control system |
| 08/18/1994 | WO1994018781A1 Method and system for compensating for coupling between circuits of quaded cable in a telecommunication transmission system |
| 08/18/1994 | WO1994018759A1 Process and device for the detection of disabling tone of the echo canceller in a telephone switching exchange |
| 08/18/1994 | DE4304013A1 Arrangement for transmission of a.c. signal voltages |
| 08/18/1994 | CA2170380A1 Telemetry and control system |
| 08/18/1994 | CA2115793A1 Integrated power and signal transmission system |
| 08/17/1994 | EP0611089A2 Active acoustic control system matching model reference |
| 08/17/1994 | EP0611059A2 A system for DC restoration of serially transmitted binary signals |
| 08/17/1994 | EP0610880A1 Circuit arrangement for connecting a modem in a power supply line carrier communications system |
| 08/17/1994 | EP0610203A1 Differential driver/receiver circuit |
| 08/17/1994 | CN2174730Y Apparatus for obtaining stable d/c current from communication transmission line |
| 08/12/1994 | CA2115223A1 Active acoustic control system matching model reference |
| 08/10/1994 | EP0609828A2 Adaptive matched filter |
| 08/09/1994 | US5337332 Training detection apparatus |
| 08/09/1994 | US5337025 Adaptive equalization circuit for equalizing the frequency response of varying lengths of transmission line |
| 08/03/1994 | EP0608664A1 Method of filtering high resolution digital signals and corresponding architecture of digital filter |
| 08/03/1994 | EP0608305A1 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 |
| 08/02/1994 | US5334879 Feeding system and feeding method for a submarine cable communication system |
| 08/02/1994 | CA2020804C Adaptive echo canceller |
| 08/02/1994 | CA2017898C Echo canceler-suppressor speakerphone |
| 07/30/1994 | CA2114500A1 Apparatus and method for cross-talk reduction |
| 07/27/1994 | EP0607896A1 Transversal filter capable of processing an input signal of high data rate |
| 07/27/1994 | EP0607702A2 A variable equalization amplifier |
| 07/27/1994 | EP0607393A1 Neural filter architecture for the non-linear, adaptative elimination of disturbing interferences |
| 07/27/1994 | EP0607304A1 Multiple access telephone extension systems and methods |
| 07/26/1994 | US5333194 Autoequalizing bidirectional-to-unidirectional hybrid network |
| 07/26/1994 | US5333149 Process and a circuit for adapting coefficients in a modem equalizer |
| 07/26/1994 | US5333148 Data receiver |
| 07/26/1994 | US5333114 Field mounted control unit |
| 07/26/1994 | CA2036078C Sub-band acoustic echo canceller |
| 07/21/1994 | WO1994017603A1 Speech communication system |
| 07/20/1994 | EP0332655B1 Method and apparatus for equalization of data transmission system |
| 07/20/1994 | CN1089769A Device for transmitting multichannel microcomputer data on low voltage power line |
| 07/19/1994 | US5331663 Decision-feedback equalizer capable of producing an equalized signal at a high speed without a remaining fading |
| 07/19/1994 | US5331662 Adaptive equalization method reducing intersymbol interference, receive device implementing it and application thereof |
| 07/19/1994 | US5331416 Methods for operating ghost-cancelation circuitry for TV receiver or video recorder |