Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 3 - Line transmission systems
Patents for H04B 3 - Line transmission systems (31,523)
10/2008
10/23/2008US20080260177 Digital Medium Device, Program, and Digital Medium Providing Method
10/23/2008US20080260172 Echo Canceller and Speech Processing Apparatus
10/23/2008US20080260050 On chip transformer isolator
10/23/2008US20080260049 Serializer and deserializer
10/23/2008US20080260016 Fully Adaptive Equalization for High Loss Communications Channels
10/23/2008US20080258551 Communication circuit for a digital electronic dimming ballast
10/23/2008DE102007017922A1 Stromzählersystem mit fernsteuerbarer Stromunterbrechung Electricity meter system with remotely controllable power interruption
10/22/2008EP1983657A1 Adaptive digital filter and receiver
10/22/2008EP1982503A1 Method and a system for providing connectivity of a moving object to a external network
10/22/2008EP1982433A1 System, device and method
10/22/2008EP1982432A1 A method and a system for cable or subscriber loop investigation performing loop topology identification
10/22/2008EP1982427A2 A radio frequency coupler, coupling system and method
10/22/2008EP1982399A1 Method for monitoring and/or controlling or regulating the voltage of at least one cell group in a cellular composite of an energy accumulator
10/22/2008EP1186156B1 Adaptability to multiple hands-free communication accessories
10/22/2008CN101292437A Multi-wideband communications over power lines
10/22/2008CN101291377A Echo eliminating method for network telephone
10/22/2008CN101291161A Method and device for testing electric property of cable connector
10/22/2008CN101291152A Interference eliminating device and method for receiver of communication system
10/21/2008US7441122 Method for providing secure access to a digital resource
10/21/2008US7440891 Speech processing method and apparatus for improving speech quality and speech recognition performance
10/21/2008US7440750 Signal routing for reduced power consumption in a conferencing system
10/21/2008US7440514 Control of data transmission voltage level using clipping in a low-voltage network
10/21/2008US7440499 Fractional spaced equalizer
10/21/2008US7440411 Echo reduction to achieve a requested service
10/16/2008WO2008123317A1 Signal processing device, echo canceller, and signal processing method
10/16/2008WO2008123182A1 Power line communication system
10/16/2008WO2008123062A1 Echo canceller
10/16/2008WO2008122169A1 Method and terminal for realizing data uplink transmission
10/16/2008WO2008104686A3 Test installation with a test bench and method for using such a test bench in said installation
10/16/2008WO2008104684A3 Testing installation for the performance of a domestic electric supply network
10/16/2008US20080250638 Method for electrically connecting a stinger into a network node
10/16/2008DE112006003196T5 Systeme und Verfahren zur Powerline-Kommunikation mit Kühlcontainern Systems and methods for power line communication with refrigerated containers
10/15/2008EP1981175A1 Communication system over a power line distribution network
10/15/2008EP1981174A2 Method and apparatus for processing a modulated signal using an equalizer and a rake receiver
10/15/2008EP1980089A1 Non-intrusive signal quality assessment
10/15/2008EP1712008A4 Optimization of ultra-wideband communication through a wire medium
10/15/2008EP1290816B1 Method of extracting a signal
10/15/2008EP1192729B1 Pure delay estimation
10/15/2008CN201134954Y Power line carrier remote group controlled illuminating electricity saving system
10/15/2008CN201134893Y Kit type electronic gate intercommunication host with cap
10/15/2008CN201134801Y Portable communicating transmission device
10/15/2008CN201134699Y Intelligent distributed FA technique research system of urban power distribution network of xiaolujiazui region
10/15/2008CN201134698Y Wideband carrier communication technic applied system of urban power distribution network of xiaolujiazui region
10/15/2008CN101287182A Wireless communication system, method and device
10/15/2008CN101286766A Low voltage electric power carrier communication scheme
10/15/2008CN101286765A Low voltage electric power carrier communication scheme
10/15/2008CN101286764A Transmission line system
10/15/2008CN101286763A Effective echo suppressor
10/15/2008CN100426819C Echo signal suppressor
10/15/2008CN100426806C Method, receiver devices and systems for whitening signal disturbance in communication signal
10/14/2008US7437122 Apparatus and method for turning wireless TV on/off
10/14/2008US7436935 Qualifying telephone lines for data transmission
10/14/2008US7436881 Per-bin DFE for advanced OQAM-based multi-carrier wireless data transmission systems
10/14/2008US7436787 Transceiver for full duplex communication systems
10/14/2008US7436758 Apparatus and method for transmitting/receiving pilot pattern set to distinguish base station in orthogonal frequency division multiplexing (OFDM) communication system
10/14/2008CA2153140C Transformer coupler for communication over various lines
10/09/2008WO2008119996A1 Communication over a dc power line
10/09/2008WO2008033971A3 Device test and debug using power and ground terminals
10/09/2008WO2008024544A3 Method and apparatus for providing and obtaining broadcast/multicast service feedback
10/09/2008US20080248745 System and Method for Identifying the Path or Devices on the Path of a Communication Signal Using (1+r(T)) Amplitude Modulation
10/09/2008US20080248744 System and Method for Detection of Mobile Operating Through a Repeater
10/09/2008US20080247562 Communication system using short range radio communication headset
10/09/2008US20080247559 Electricity echo cancellation device and method
10/09/2008US20080247558 Robust and Efficient Frequency-Domain Decorrelation Method
10/09/2008US20080247557 Information Processing Apparatus and Program
10/09/2008US20080247554 Wireless Digital Transmission of Low Frequency Effects and Surround Channels For Surround Sound System
10/09/2008US20080247447 Apparatus and method for transmitting digital data over various communication media
10/08/2008EP1978649A2 Spectral Domain, Non-Linear Echo Cancellation Method in a Hands-Free Device
10/08/2008CN101283607A Wireless communications device with artificial intelligence-based distributive call routing
10/08/2008CN101283520A Signal receiving apparatus including equalizer, terminal apparatus, and signal receiving method
10/08/2008CN101282315A Distribution method, system and terminal sharing transmission medium
10/08/2008CN101282189A Method, system and terminal for clock synchronization
10/08/2008CN101282141A Method, apparatus and system for transmitting and receiving data
10/08/2008CN101282140A Method and terminal for transmitting upstream data
10/08/2008CN101281052A High precision low-power consumption radar liquid level instrument system
10/08/2008CN100425107C High-speed printed circuit board with earth layer in microwave photon crystalline structure
10/08/2008CN100425011C Method and apparatus for reducing transmission power in a high data rate system
10/07/2008US7434134 System and method for trellis decoding in a multi-pair transceiver system
10/07/2008US7433908 Selective-partial-update proportionate normalized least-mean-square adaptive filtering for network echo cancellation
10/07/2008US7433665 Apparatus and method for converting single-ended signals to a differential signal, and transceiver employing same
10/07/2008US7433462 Techniques for improving telephone audio quality
10/07/2008US7433412 Digital subscriber line induction neutralizing transformer network
10/07/2008US7433400 Concurrent process for blind deconvolution of digital signals
10/07/2008US7433395 Reliable multicarrier communication in the presence of timing phase error
10/07/2008US7432782 Signal splitter
10/07/2008US7432619 Distance extender
10/07/2008CA2399324C Electrified monorail communication system
10/07/2008CA2321571C A differential line driver
10/02/2008WO2008118854A1 Power-aware multi-circuit system and method
10/02/2008WO2008118048A1 Methods and arrangements in a digital subscriber line network
10/02/2008WO2008117553A1 Power line communication system and power line communication device
10/02/2008WO2008117441A1 Equalizer characteristic optimization method, transmission system, communication device, and program
10/02/2008WO2008117363A1 Signal transmission method, transmission/reception circuit, and device with the transmission/reception circuit
10/02/2008WO2008117311A1 Powerline communication system at vhf/uhf
10/02/2008WO2008027644A3 Method and apparatus facilitating downstream frequency override in a data-over-cable system
10/02/2008US20080240739 Differential circuit with precisely controlled terminator circuit
10/02/2008US20080240461 Portable electronic apparatus and sound output-controlling program
10/02/2008US20080240460 Audio Signal Delivery Management System, Audio Signal Acquiring and Transmitting Apparatus, Audio Signal Identifying and Outputting Apparatus, and Audio Signal Delivering Apparatus
10/02/2008US20080240459 Network system and audio signal processor
10/02/2008US20080240216 Link adaptation method
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