Patents
Patents for H04B 3 - Line transmission systems (31,523)
09/2007
09/18/2007US7272073 Method and device for generating information relating to the relative position of a set of at least three acoustic transducers
09/18/2007US7271707 Device and method for producing a three-dimensionally perceived planar tactile illusion
09/18/2007CA2550019C Centralized powering system and method
09/18/2007CA2378329C Data transmission in pipeline systems
09/15/2007CA2582058A1 Lighting control system & three way occupancy sensor
09/13/2007WO2007101942A1 Electroluminescent emission device for optical transmission in free space
09/13/2007WO2006076690A3 Method and apparatus for ambient sound therapy user interface and control system
09/13/2007US20070211908 Multi-channel audio control
09/13/2007US20070211794 Tranceiver non-linearity cancellation
09/13/2007US20070211652 Mobile communication apparatus
09/13/2007US20070211619 Method and apparatus for hybrid cdm ofdma wireless transmission
09/13/2007DE102005030049B4 Treiberschaltung für eine Telefonleitung A drive circuit for a telephone line
09/12/2007EP1833229A1 Communication relay device, information processing system, control method, and program
09/12/2007EP1833005A1 Detector system and method for detection
09/12/2007EP1832089A1 Method and circuit arrangement for carrying out initialisation and/or registration steps for a device, in particular a household appliance
09/12/2007EP1832008A1 A electric home appliance able to power line communication
09/12/2007EP1832007A1 Line status detection apparatus, communication apparatus, and line status detection method
09/12/2007CN200947660Y Embedded network visual speaking device
09/12/2007CN200947601Y Magnet-locking structure in power line communication
09/12/2007CN200947600Y 通讯分支分配器 Communication splitter
09/12/2007CN101036313A Power line communication methods and devices
09/12/2007CN101034998A Ethernet data transmission method and PHY chip based on the broadcast/television network
09/12/2007CN101034913A Network device applicable to the power line carrier communication system
09/11/2007US7269452 Directional wireless communication systems
09/11/2007US7269353 Branching unit for an optical transmission system
09/11/2007US7269265 Method for switching audio signals and the device of the same
09/11/2007US7269236 Frequency offset estimator
09/11/2007US7269215 Equalization processing method and the apparatus for periodic fluctuation of transmission line characteristic
09/11/2007US7269214 Waveform equalizer
09/11/2007US7269213 Waveform equalizer having a tap coefficient monitoring unit
09/11/2007US7269211 Residual echo reduction for a full duplex transceiver
09/11/2007US7268673 Electronic device with a vibrator and an exchangeable cover
09/11/2007US7268672 System for providing a tactile stimulation in response to a predetermined alarm condition
09/11/2007US7268670 Power line communications system
09/11/2007US7268578 Transmission circuit, data-transfer control device and electronic equipment
09/11/2007US7268444 Feed line structure
09/11/2007US7268294 Adaptor; controller and plug receptacle for electronic device
09/11/2007US7266927 Drive-in movie theater with short range sound system
09/07/2007WO2007100480A2 A welding-type system with power source and remote device connected through a weld cable using binary phase shift keying for transmitting commands over the weld cable; a method of remotely controlling such power source using such transmitting phase shift keying
09/07/2007WO2007098674A1 Method and device for obtaining crosstalk information
09/07/2007WO2007074287A3 Method for common mode rejection with differential line pairs
09/06/2007US20070206817 Audio processor
09/06/2007US20070206666 Digital satellite receiver and method for expanding digital satellite radio coverage for devices
09/06/2007US20070205846 Filter circuit
09/06/2007DE112004002700T5 Verfahren und Vorrichtung zum Reduzieren eines Nebensprechens in einem MIMO-Übertragungssystem Method and device for reducing crosstalk in a MIMO transmission system
09/06/2007DE102006010002A1 House installation for use in pharmacy, has controller controlling two interfaces for connecting house installation with telephone and personal computer depending on data set that contains information about identity
09/06/2007DE102006009563A1 Arrangement for transmission of data signals, has transmitter producing amplitude modulated supply voltage, whose alternative voltage portion reaches on consumer side above capacitance arrangement and signals are supplied to IC-component
09/06/2007DE102004017487B4 Verfahren zur Übertragung von Schutzsignalen und Anordnung zur Durchführung des Verfahrens Method for transmitting signals and protection arrangement for carrying out the method
09/05/2007EP1829269A2 Method and system for virtual exchange reference impact (veri) for use in mixed spectrum management in dsl
09/05/2007EP1829242A1 Computing filter coefficients for an equalizer in a communication receiver
09/05/2007EP1829239A1 Power line communication methods and devices
09/05/2007EP1829238A1 Signal repeater system
09/05/2007EP1829237A1 Method and apparatus for providing out of band communications over structured cabling
09/05/2007EP1829208A2 Coaxial communication active tap device and distribution system
09/05/2007EP1829001A2 Arrangement of daisy chained inductive couplers for data communication
09/05/2007EP1579668A4 A power line communication system and method of operating the same
09/05/2007EP1564914B1 Illumination light communication device
09/05/2007EP1192730A4 Identification system for monitoring the presence/absence of members of a defined set
09/05/2007CN200944589Y High-frequency wiring module for outdoor environment
09/05/2007CN101030990A Echo prevention circuit, filter coefficient setting method, and program
09/05/2007CN101030836A Method and apparatus for data encoding and communication over noisy media
09/05/2007CN101030815A Adjusting and reconfigured microwave photo filter device based on super-continuous spectrum light source
09/05/2007CN101030793A Wireless network system using power line communication
09/05/2007CN101030792A Audio-visual system by railway or subway coach broadcasting or power-supply circuit transmission
09/05/2007CN100336312C Coupling circuit for power line communications
09/05/2007CN100336311C Method for solving far-end crosstalk in digital subscriber line
09/05/2007CN100336310C A circuit for implementing VDSL line distance increasing
09/04/2007US7266758 Network monitoring program, network monitoring method, and network monitoring apparatus
09/04/2007US7266223 Personal identification device and method
09/04/2007US7266154 Digital subscriber line induction neutralizing transformer network
09/04/2007US7266092 Adaptive frequency duplexing system and method
08/2007
08/30/2007WO2007097756A1 Tunable filters having variable bandwidth and variable delay
08/30/2007WO2007052836B1 Visible light communication apparatus and method
08/30/2007US20070201543 Dynamic phase offset measurement
08/30/2007US20070201542 Circuit Arrangement For Suppressing Interfering Signals In Transmitted Signals Emitted By A Modem Of A Household Appliance
08/30/2007US20070201494 Last Leg Utility Grid High-Speed Data Communication Network Having Virtual Local Area Network Functionality
08/30/2007US20070201351 Wireless communication method using ofdm and ofdm transmitter and receiver thereof
08/30/2007DE102007003010A1 Anlage, Vorrichtung und Verfahren System, apparatus and method
08/30/2007DE102004042994B4 Verfahren und Vorrichtung zur Echounterdrückung Method and device for echo cancellation
08/29/2007EP1579669A4 A power line communication apparatus and method of using same
08/29/2007CN101027851A Data communication system, data transmitting apparatus, data receiving apparatus, data communication method and data communication program
08/29/2007CN101026659A Method for realizing echo time delay positioning
08/29/2007CN101026411A Communicating in a network that includes a medium having varying transmission characteristics
08/29/2007CN101026392A Method of controlling an adaptation of a filter
08/29/2007CN100334456C Method and apparatus for distinguishing cable by simultaneous supplying of tone and intermittent link
08/28/2007US7263184 Method and apparatus for active reduction of speakerphone singing
08/28/2007US7263174 Predicting performance of telephone lines for data services
08/28/2007US7263134 Ethernet transceiver with single-state decision feedback equalizer
08/28/2007US7263121 Method and apparatus for determining a topology of a subscriber line loop
08/28/2007US7263074 Voice activity detection based on far-end and near-end statistics
08/28/2007US7262522 Microelectromechanical isolating power converter
08/23/2007WO2007094555A1 Method of data communication between plc stations belonging to different plc cells and apparatus thereof
08/23/2007WO2007094547A1 Method and apparatus for packet aggregation in power line communication network
08/23/2007WO2007094106A1 Device used in vehicle and communication interface circuit used in that device
08/23/2007WO2007093096A1 A bi-directional amplifier device and semiduplex communication system and method thereof
08/23/2007WO2007055699A3 Power line coupling device and method of using the same
08/23/2007US20070197262 Plug-In Network Appliance
08/23/2007US20070197161 Cellular wide-area radio communications system with relay-enhanced cells
08/23/2007US20070195875 Multi-pair gigabit ethernet transceiver having decision feedback equalizer
08/23/2007US20070195868 Method to increase performance of secondary data in a heirarchial modulation scheme