H04B 3 - Line transmission systems

Patents for H04B 3 - Line transmission systems (31,523)
09/1997
09/10/1997	EP0794306A2 Electronic access control and security system
09/10/1997	EP0793875A1 Transmission system using time dependent filter banks
09/10/1997	CN1159107A Multi-layered frame line trap
09/10/1997	CN1159106A New remote control and telecommunication method
09/09/1997	US5666457 Optical submarine repeater
09/09/1997	US5666302 Input/output device
09/09/1997	CA2197153A1 Electronic access control and security system
09/09/1997	CA2081407C Identification of transmission characteristics
09/04/1997	WO1997032438A2 Cable access device and method
09/04/1997	WO1997032409A1 Branching unit for an optical fibre transmission system
09/04/1997	DE19637800C1 Cable amplifier with heat sink partly uncovered by circuit board e.g. for cable television (TV)
09/03/1997	EP0793341A2 Adaptive filter with disabling circuit for fast tap weight convergence
09/03/1997	CN1158522A Method and apparatus for simultaneous voice/data transmission
09/02/1997	US5664011 Echo canceller with adaptive and non-adaptive filters
09/02/1997	US5663985 Communication apparatus and method in a field bus system
09/02/1997	US5663968 Margin test method and apparatus for intergrated services digital networks
09/02/1997	US5663955 Echo canceller system with shared coefficient memory
09/02/1997	US5663515 Online system for direct driving of remote karaoke terminal by host station
08/1997
08/28/1997	WO1997031430A1 System for data transmission, remote sensing, remote controls, remote readings and the like, particularly suitable for the electric power distribution lines
08/28/1997	CA2246807A1 System for data transmission, remote sensing, remote controls, remote readings and the like, particularly suitable for the electric power distribution lines
08/27/1997	EP0792050A2 Distribution of reference symbols in a frame
08/27/1997	EP0792029A2 Echo canceller E-side speech detector
08/27/1997	EP0791251A1 Echo cancellation using cross-correlation of buffered receive and transmit sample segments to determine cancelling filter coefficients
08/27/1997	EP0417272B1 Receiver for quadraphase modulation signals
08/27/1997	CN2261116Y Ringing receiver for carrier device
08/27/1997	CN1158059A Equalizing method and equalizer using reference signal
08/27/1997	CN1158033A Data receiving system
08/26/1997	US5661813 Method and apparatus for multi-channel acoustic echo cancellation
08/26/1997	US5661802 Auxiliary power and telephone signal distribution system
08/26/1997	US5661795 Adaptive signal processing device, echo suppressing device and hand-portable telephone device
08/26/1997	US5661415 Output buffer circuit with logic gate control circuitry
08/26/1997	CA2068926C Optical line monitor
08/21/1997	WO1997024866A3 System and method for testing acoustic modems with semanticallly encoded waveforms
08/20/1997	CN1157522A Echo Removing apparatus
08/19/1997	US5659609 Echo canceller and waveform-distortion compensation device
08/19/1997	US5659584 Data receiving system for receiving data signal faded and delayed
08/19/1997	US5659583 Tone canceller for QAM demodulator
08/19/1997	US5659581 Modem receiver pre-emphasis
08/19/1997	US5659301 Transmission system
08/19/1997	US5659273 Line termination for multiple differential transmission lines
08/14/1997	WO1997029560A1 Remotely controlling and determining electrical device status
08/14/1997	WO1997029556A1 Repeater for transmission system for controlling and determining the status of electrical devices from remote locations
08/13/1997	EP0789476A2 Noise reduction arrangement
08/13/1997	EP0789472A2 Telephone handset interface with feedback control
08/13/1997	EP0789462A2 Method and apparatus for processing time domain cross-talk information
08/13/1997	EP0789419A1 Device and method for transmission of information for systems with radiating waveguides
08/13/1997	CN1156926A Circuit and method for communication using power line
08/12/1997	US5657349 Method and apparatus capable of quickly identifying an unknown system with a final error reduced
08/12/1997	US5657346 Transmission line driver test integrity circuit
08/12/1997	CA2076710C Channel impulse response estimator for a system having a rapidly fluctuating channel characteristic
08/07/1997	WO1997028614A1 A system and method for performing echo cancellation in a communications network employing a mixed mode lms adaptive balance filter
08/07/1997	WO1997028613A1 Disabling tone detector for network echo canceller
08/07/1997	DE19604198A1 Computer data transmission method using lighting system wiring
08/06/1997	EP0788262A2 Combined equalizer and decoder
08/06/1997	EP0787393A2 Local area method arrangement
08/06/1997	EP0615674A4 Network echo canceller.
08/06/1997	CN1156353A Carrier synchrous communication technology
07/1997
07/31/1997	WO1997027695A2 Digital receiver with fractionally-spaced self-recovery adaptive equalizer
07/31/1997	WO1997027599A1 Ground skew protection method and apparatus
07/31/1997	WO1997022184A3 Bi-directional signal transmission system
07/31/1997	DE19702350A1 Central node converter for coupling to terminal of house network
07/31/1997	CA2241897A1 Digital receiver with fractionally-spaced self-recovery adaptive equalizer
07/30/1997	EP0624287A4 Modem including an equalizer for amplitude jitter.
07/29/1997	US5652755 Printer interface system
07/24/1997	WO1997026751A1 A power-line communication system using pulse transmission on the ac line
07/24/1997	WO1997026636A1 Electronic communication notepad
07/24/1997	WO1997011395A3 Coil support device for an underwater cable
07/24/1997	DE19601405A1 Transmitting system echo compensation method
07/23/1997	EP0785636A2 Apparatus and method in or relating to signal processing techniques
07/23/1997	EP0784448A2 Signal processing apparatus
07/22/1997	US5650763 Non-linear reciprocating device
07/16/1997	EP0784207A1 Lan tester
07/16/1997	CN2257974Y Coal mine communication device
07/16/1997	CN1154611A Echo removing system
07/16/1997	CN1154609A Arrangement for transmission of signals via field bus
07/15/1997	US5649012 Method for synthesizing an echo path in an echo canceller
07/15/1997	US5649011 Method for the adaptive control of a digital echo canceller in a telecommunication system
07/15/1997	US5649010 Send filter for an echo canceler
07/15/1997	US5648988 Communication system including a digital roll-off filter
07/15/1997	US5648987 Rapid-update adaptive channel-equalization filtering for digital radio receivers, such as HDTV receivers
07/15/1997	US5648688 Automobile multiplex communication wiring structure including shield
07/10/1997	WO1997024866A2 System and method for testing acoustic modems with semanticallly encoded waveforms
07/10/1997	WO1997024853A2 Echo reduction for telephone communication system
07/10/1997	WO1997024814A1 Channel training of multi-channel receiver system
07/10/1997	WO1997024805A1 Resolution enhancement of fixed point digital filters
07/10/1997	WO1997024804A1 Gauging convergence of adaptive filters
07/10/1997	WO1997024802A1 Impulse noise effect reduction
07/10/1997	CA2240676A1 Channel training of multi-channel receiver system
07/09/1997	EP0782794A1 Coupling of telecommunications signals to a balanced power distribution network
07/09/1997	EP0670102B1 A method of electronic control
07/09/1997	CN1154021A Low-crosstalk electrical signal transmitting medium
07/09/1997	CN1154020A 匹配滤波器电路 Matched filter circuit
07/08/1997	US5646991 Noise replacement system and method in an echo canceller
07/08/1997	US5646990 Efficient speakerphone anti-howling system
07/08/1997	US5646958 Decision feedback equalizer for canceling short-and long-multipath components using correspondingly delayed decision symbols
07/08/1997	US5646957 Burst update for an adaptive equalizer
07/08/1997	US5646955 Apparatus for measuring cycle to cycle jitter of a digital signal and method therefor
07/08/1997	US5646950 Matched spectral null codes for partial response channels
07/02/1997	EP0782305A2 Biderectional DFE
07/02/1997	EP0782261A2 Update block for an adaptive equalizer filter configuration

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