Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 3 - Line transmission systems
Patents for H04B 3 - Line transmission systems (31,523)
06/2010
06/02/2010CN1784881B Method and arrangement for signal loop test
06/02/2010CN101720544A Isolating interface with a differentiating circuit comprising a capacitive barrier and method for transmitting a signal by means of such isolating interface
06/02/2010CN101719775A Power line carrier transreceiver special for relay protection
06/02/2010CN101222555B System and method for improving audio speech quality
06/02/2010CN101123537B Method, system and management server for configuring coaxial cable carrier Ethernet terminal
06/02/2010CN101094101B Remote management method and system for VDSL terminal device
06/02/2010CN101052219B Method for suppressing radio communication mutual interference
06/01/2010US7729656 Cellular network low noise amplifiers for use with multiple frequencies
06/01/2010US7729498 Modulator processing for a parametric speaker system
06/01/2010US7729429 Active replica transformer hybrid
06/01/2010US7729428 Method and apparatus for recognizing a change-of-state in communication signals of electronic circuits
06/01/2010US7729427 Pseudo-synchronous one wire bidirectional bus interface
06/01/2010US7729418 Testing circuit for measuring a frequency of signal output from clock generator
06/01/2010US7728692 Reduction of noise in a metallic conductor signal pair using controlled line balancing and common mode impedance reduction
06/01/2010US7728605 Wireless portable automated harness scanner system and method therefor
06/01/2010US7728228 Alien crosstalk suppression with enhanced patchcord
05/2010
05/27/2010WO2010057294A1 Folding sequential adaptive equalizer
05/27/2010US20100127790 Electromagnetic bandgap structure and printed circuit board
05/27/2010DE102009001653A1 Hybrider Signalprozessor Hybrid signal processor
05/27/2010CA2743962A1 Folding sequential adaptive equalizer
05/26/2010EP2190128A2 Device for a wire connection to a remote electric board
05/26/2010EP2190127A2 Systems and methods for loop length and bridged tap length determination of a transmission line
05/26/2010CN201491010U Medium-pressure power line communication webcast system
05/26/2010CN1989700B Sub-block domain transformation multiple signal processing
05/26/2010CN1906879B Adaptive FEC codeword management
05/26/2010CN1860697B Method and apparatus for power line communication
05/26/2010CN1649280B Adjustable echo eliminator for full duplex communication system
05/26/2010CN101714968A Communication apparatus
05/26/2010CN101714898A Illumination light communication device
05/26/2010CN101218744B Adaptive digital filter, FM receiver, digital processing method
05/26/2010CN101090335B Remote regulating method and system for indoor temperature and load of domestic air conditioner
05/26/2010CN101040512B Echo cancellation device and method
05/25/2010US7725081 Communication apparatus
05/25/2010US7725074 Wireless communication method, relay station apparatus, and wireless transmitting apparatus
05/25/2010US7724893 Method of adaptation step control in echo cancellers
05/25/2010US7724831 Method and apparatus for detection of load impedance modulation in a transformer circuit
05/25/2010US7724812 Method and apparatus for de-jittering a clock signal
05/25/2010US7724811 Delay circuit, jitter injection circuit, and test apparatus
05/25/2010US7724693 Network dependent signal processing
05/25/2010US7724035 Data transmission system and cable
05/25/2010CA2321505C Establishing bi-directional communication sessions across a communications network
05/20/2010WO2010056222A1 A wireless repeater with a locate mode
05/20/2010WO2010055650A1 Adaptive filter and echo canceller having same
05/20/2010US20100124289 Transmission suppression
05/20/2010US20100124288 Detection of outbound message signals in a power line two-way communications system
05/20/2010US20100123588 Method and Apparatus for Generating Mood-Based Haptic Feedback
05/20/2010US20100123527 Network transformer to reduce electromagnetic interference
05/20/2010DE112008001547T5 Digitale Bilddaten übertragendes digitales Bildübertragungssystem Digital image data transmitting digital image transmission system
05/19/2010EP2187656A1 Sound collection device
05/19/2010EP2187558A2 Adaptive FEC Codeword Management
05/19/2010CN101710870A Access and data transmission method for mineral long reach Ethernet
05/19/2010CN101710837A 2M signal eye diagram testing method
05/19/2010CN101102127B Application method of power modem in emergent communication
05/19/2010CN101087485B A transmission control method of multi-sound source remote distance wireless sound box and its device
05/19/2010CN101056124B Power communication remote motion signal monitoring and self-operation system
05/18/2010US7721317 Coaxial communication active tap device and distribution system
05/18/2010US7721164 Method and apparatus for improved storage area network link integrity testing
05/18/2010US7720237 Phase equalization for multi-channel loudspeaker-room responses
05/18/2010US7720236 Updating modeling information based on offline calibration experiments
05/18/2010US7720232 Speakerphone
05/18/2010US7720201 Communication apparatus
05/18/2010US7720138 Communication system
05/18/2010US7720015 Receiver ADC clock delay base on echo signals
05/18/2010US7719130 Power cable line
05/14/2010WO2010053155A1 Decision feedback equalizer
05/14/2010WO2010051767A1 Communication system of master-slave mode direct current carrier
05/13/2010US20100119078 Audio distribution system
05/13/2010US20100118985 Method and system for current-mode power line communications
05/13/2010US20100118984 Network transmitting apparatus and power saving method thereof
05/13/2010US20100118983 Communication over a dc power line
05/13/2010US20100118928 Transceiver Apparatus and Method Having Ethernet-Over-Power and Power-Over-Ethernet Capability
05/13/2010US20100118918 Spread spectrum isolator
05/13/2010US20100117858 Method and system for cost-effective power line communications for sensor data collection
05/12/2010EP2184862A1 Method and system for a combined signal detection for physical layer communication devices
05/12/2010CN201467122U Signal sending module of carrier communication circuit
05/12/2010CN201467121U 0.4Kv low-voltage network carrier-wave communication device by taking ground as reference point
05/12/2010CN201464896U Embedded-type remote terminal controller for power line communication network
05/12/2010CN1996919B System and method for realizing the intelligent control over the visual home appliance via the handset
05/12/2010CN1941650B Signal separation method and separating system and separator board
05/12/2010CN1937433B Method for confirming crosstalk coupling and crosstalk confirming unit
05/12/2010CN1897475B Optical-fiber time-delay measuring method and circuit for digital direct-emitting station system
05/12/2010CN1885749B Novel communication network topology structure for power electronic system
05/12/2010CN1813419B Communication system
05/12/2010CN1771683B System and method for preventing phantom data communication links
05/12/2010CN1663141B Method, apparatus, and system for reducing memory requirements for echo cancellers
05/12/2010CN1549462B Interactive information propagating system for elevator
05/12/2010CN1540947B Apparatus for remotely controlling household appliances
05/12/2010CN1503466B Echo eliminating method, circuit and system for sparse channels
05/12/2010CN1497825B Power supply decoupling device and method for parallel terminal transmission
05/12/2010CN101707571A Power line and wireless dual-network routing method
05/11/2010US7715785 System and method for estimation and compensation of radiated feedback coupling in a high gain repeater
05/11/2010US7715496 Channel state determination method and channel state generator in receiver
05/11/2010US7715473 Channel equalizer, method and computer program for equalizing a channel
05/11/2010US7715425 Channel adaptation synchronized to periodically varying channel
05/11/2010US7714701 Active material based haptic alert system
05/11/2010US7714682 Power line data signal attenuation device and method
05/06/2010WO2010050083A1 Protection relay and method for controlling transmission level of the same
05/06/2010WO2010049643A1 Power line communication box
05/06/2010WO2010048896A1 Upstream power back-off method in digital subscriber line and the device and the system thereof
05/06/2010WO2010048861A1 Method, system and device of exiting training rapidly
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