Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 3 - Line transmission systems
Patents for H04B 3 - Line transmission systems (31,523)
06/2005
06/16/2005US20050127940 Signal transmitting device suited to fast signal transmission
06/16/2005DE10353495A1 Multiplexing method for data transmission over cable line, using multiplexer to transmit data transmission block with adaptive block length over transmission channel
06/16/2005DE10351431A1 Power line communications system for broadband data transmission, uses power distribution network and mobile radio network having radio interfaces mounted on individual lamp posts
06/15/2005EP1542444A2 An echo canceler circuit and method
06/15/2005EP1542416A2 Equalizer and method of setting initial value for same
06/15/2005EP1542415A2 Transversal equaliser
06/15/2005EP1542374A1 An echo canceler circuit and method
06/15/2005EP1540910A1 Communication receiver with virtual parallel equalizers
06/15/2005EP1540845A1 Method for controlling activation of an electromechanical actuator
06/15/2005EP1540844A2 Methods for transmitting a waveform having a controllable attenuation and propagation velocity
06/15/2005EP1540820A2 Method and apparatus for channel equalization
06/15/2005EP1539178A2 Protease inhibitors
06/15/2005EP1481488B1 TRANSMITTER/RECEIVER FOR BIDIRECTIONAL COMMUNICATIONS
06/15/2005EP1155504A4 Data access arrangement for a digital subscriber line
06/15/2005EP0978169B1 An arrangement in a subscriber line interface circuit
06/15/2005CN1627822A 影像传输装置 Image transfer device
06/15/2005CN1627739A Equalizer and method of setting initial value for same
06/14/2005US6907472 Distributed synchronization mechanism for shared communications media based networks
06/14/2005US6907082 4-20 mA interface circuit
06/14/2005US6906618 Method and system for bidirectional data and power transmission
06/14/2005US6906426 Transceiver having shadow memory facilitating on-transceiver collection and communication of local parameters
06/14/2005CA2298308C Improved coaxial cable protection device
06/09/2005WO2005053201A2 Universal network interface for home network
06/09/2005WO2005039070A3 Compensating for dynamic nulls in a power line communication system
06/09/2005WO2004070414A3 Audio interface device for public address systems
06/09/2005US20050125507 Method and apparatus for notifying end user of excess power demand
06/09/2005US20050124319 Digital rights management using a triangulating geographic locating device
06/09/2005US20050123128 Gain control
06/09/2005US20050123081 Low-power mixed-mode echo/crosstalk cancellation in wireline communications
06/09/2005US20050123035 Multipath elimination filter
06/09/2005US20050123033 Method and apparatus for dynamically inserting gain in an adaptive filter system
06/09/2005US20050123031 System and method for detecting anomalies along telecommunication lines
06/09/2005US20050123030 Systems and methods for loop length and bridged tap length determination of a transmission line
06/09/2005US20050123028 Adaptive margin and band control
06/09/2005US20050123027 DSL system estimation and parameter recommendation
06/09/2005US20050122893 Techniques to reduce echo
06/09/2005US20050120858 System and method for on-demand storage of randomly selected data
06/09/2005DE10350595A1 Echo compensation device in signal transmission has non linear compensating branches with non linear function between linear filters
06/09/2005CA2806708A1 Medium access control layer that encapsulates data from a plurality of received data units into a plurality of independently transmittable blocks
06/08/2005EP1537708A2 Frequency-domain decision feedback equalizing device and method
06/08/2005EP1537683A2 Adapting operation of a pilot signal filter based on mobile unit velocity
06/08/2005EP1485990A4 Communication device with active equalization and method therefor
06/08/2005EP1442308B1 Impedance stabilization network for determining the electromagnetic interfering radiation of a modem
06/08/2005EP1230744B1 Device for echo compensation in a two-wire full duplex channel transmission method
06/08/2005EP1125401B1 Internet gigabit ethernet transmitter architecture
06/08/2005EP1002378B1 Appliance control system utilizing bidirectional power line communications
06/08/2005EP0935850B1 System connector
06/08/2005CN1625073A Adjustable echo remover for whole duplex communication system
06/08/2005CN1624990A Telephone plug and socket for transmitting multiple signal
06/08/2005CN1205798C Method and system for scaleable near-end speech cancellation for tip and ring tone signal detectors
06/08/2005CN1205793C Method and appts. for reducing peak to average power ration in digital broadcasting systems
06/08/2005CN1205760C Transmission apparatus, receiving apparatus and receiving method
06/08/2005CN1205759C Method and apparatus for computing measures of echo
06/07/2005US6904548 Transmission characteristic compensation scheme
06/07/2005US6904134 Network infrastructure integrated system
06/07/2005US6904110 Channel equalization system and method
06/07/2005US6904086 Adaptive equalizer circuit
06/07/2005CA2206251C Method and apparatus for testing a digital communication channel at variable or fixed data rates
06/02/2005WO2005050953A2 Automatic audio systems for fire detection and diagnosis, and crew and person locating during fires
06/02/2005WO2005050938A1 System and method for frequency modulation in a modem
06/02/2005WO2005050347A2 Method and system for virtual powerline local area networks
06/02/2005US20050118875 Power line phase coupler system
06/02/2005US20050117659 Controlling of data transmission voltage level by cutting
06/02/2005US20050117634 Spectrum measurement system comprising PC and power meter
06/01/2005EP1536585A1 Data processor and method for processing data
06/01/2005EP1536572A1 Power line communication system
06/01/2005EP1536571A1 Bussystem for controlling electrical appliances on an electrical network
06/01/2005EP1535451A1 Central base for private radiocommunication local network and radiocommunication device comprising same
06/01/2005EP1535408A1 Adaptive equalizer
06/01/2005EP1163779B1 Method and system for detecting and controlling severe echo
06/01/2005EP1129521B1 Fir filter structure with low latency for gigabit ethernet applications
06/01/2005CN1623318A High frequency network multiplexed communications over various lines using multiple modulated carrier frequencies
06/01/2005CN1623298A Method for separating multiple home networks
06/01/2005CN1623275A Distortion compensator
06/01/2005CN1622219A Self refresh oscillator
06/01/2005CN1204721C Fast time delay optimization method of time domain equalizing training in discrete multisound system
06/01/2005CN1204716C Integrated circuit card for computer communication
06/01/2005CN1204714C System and method for performing real line test on subscriber loop
06/01/2005CN1204699C Bandspread communication network system in low-voltage distribution network and its communication method
06/01/2005CN1204407C Method and device for monitoring an electrode line of a bipolar high voltage direct current (HVDC) transmission system
05/2005
05/31/2005US6901538 Method, system, and recording medium of testing a 1394 interface card
05/31/2005US6901336 Method and apparatus for supplying power, and channeling analog measurement and communication signals over single pair of wires
05/31/2005US6901141 Echo canceller
05/31/2005US6901137 Detecting faults in subscriber telephone lines
05/31/2005US6901111 Interface circuit and method for digital signals
05/31/2005US6901108 Apparatus and method for adaptive control
05/26/2005WO2005048475A1 Network aware mobile devices and operations
05/26/2005WO2005048459A2 Signalling method and apparatus
05/26/2005WO2005008903A3 A power line communication system and method of operating the same
05/26/2005WO2004054119A3 A power line communication apparatus and method of using same
05/26/2005US20050111850 Optical transmission system for frequency-multiplexed signal
05/26/2005US20050111672 Speaker matcher for use of multiple rooms
05/26/2005US20050111636 Network for telephony and data communication
05/26/2005US20050111571 Method of transmitting data
05/26/2005US20050111560 System and method for transmitting control information over and AC power network
05/26/2005US20050111559 Selection of pre-computed equalizer based on channel characteristic
05/26/2005US20050111540 Adaptive equalizer operating at a sampling rate asynchronous to the data rate
05/26/2005US20050111536 Method for determining jitter of a signal in a serial link and high speed serial link
05/26/2005US20050111533 Surface wave power line communications system and method
05/26/2005US20050111532 Physical coding sublayer for a multi-pair gigabit transceiver
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