Patents
Patents for H04B 3 - Line transmission systems (31,523)
12/2005
12/08/2005WO2005117324A1 Method and apparatus for synchronizing transmissions
12/08/2005WO2005117285A1 Distortion compensation equalizer
12/08/2005WO2005117284A2 Circuit for reducing interfering signals in the symmetric subscriber access line caused by crosstalk
12/08/2005WO2005117255A1 Filter circuit, logic ic, multi-chip module, filter-equipped connector, transmitting apparatus and transmitting system
12/08/2005US20050273282 Power line communication system and method
12/08/2005US20050272444 Method and system for directing users to coverage
12/08/2005US20050272378 Spread spectrum isolator
12/08/2005US20050271149 RF isolator for isolating voltage sensing and gate drivers
12/08/2005US20050271148 RF isolator with differential input/output
12/08/2005US20050271147 Transformer isolator for digital power supply
12/08/2005US20050271135 Receiving device and analog-to-digital conversion device
12/08/2005US20050271131 System and method for generating a jittered test signal
12/08/2005US20050271127 Upstream power cutback
12/08/2005US20050271086 System and method for an intelligent load center with integrated powerline communications network switching and network management capabilities
12/08/2005US20050270076 Method and device for equalizing mode selection
12/08/2005DE102005014190A1 Sensorkabel mit leicht änderbarer Gesamtlänge, das fehlerfreie und Hochgeschwindigkeits-Signalübertragung ermöglicht, selbst wenn die Gesamtlänge vergrößert wird, und vom Verstärker getrennter Sensortyp mit dem Kabel Sensor cables with modifiable total length, error-free and high-speed signal transmission possible even if the total length is increased, and the amplifier separate type of sensor with cable
12/07/2005EP1603250A1 Print server for power lines
12/07/2005EP1603249A1 High frequency bypass unit
12/07/2005EP1602223A1 Echo canceller with reduced requirement for processing power
12/07/2005EP1317828B1 System and method for actively terminating a transmission line
12/07/2005EP1157478B1 Variable equalizer
12/07/2005CN1706176A Repeaters sharing a common medium for communications
12/07/2005CN1706175A Arrangement of a data coupler for power line communications
12/07/2005CN1706099A Filter for segmenting power lines for communications
12/07/2005CN1706013A Highly insulated inductive data couplers
12/07/2005CN1705244A Method for equalizing mode selection and its device
12/07/2005CN1705243A Multi-stage cable equipoise device
12/07/2005CN1230994C Method for detecting crosstalk and path change in echo elimination system and detector thereof
12/07/2005CN1230989C Integrated transmitting/receiving radio frequency device
12/06/2005US6973230 Distributed network repeater system
12/06/2005US6973182 Differential echo cancellation receiver with dynamic cancellation of excess DC output current
12/06/2005US6973180 Method for processing telephone signals supplied by an analog telephone terminal and data supplied by a data terminal
12/06/2005US6973146 Resampler for a bit pump and method of resampling a signal associated therewith
12/06/2005CA2245673C Remotely controlling and determining electrical device status
12/01/2005WO2005114902A1 Information leakage preventive device and information leakage preventive method
12/01/2005WO2005114862A2 System and method for frequency burst detection for gsm/gprs
12/01/2005WO2005114861A1 Fext determination system
12/01/2005US20050268322 Apparatus and method for utilizing a pre-existing power grid to provide internet access to a home or office or the like
12/01/2005US20050268029 Optical Disc Drive that Downloads Operational Firmware from an External Host
12/01/2005US20050265565 Information processing apparatus
12/01/2005US20050265462 Method and apparatus for dynamically managing power consumptions of sending and receiving drivers
12/01/2005US20050265437 Communication channel calibration with nonvolatile parameter store for recovery
12/01/2005US20050265266 Optical disc drive that downloads operational firmware from an external host
12/01/2005US20050264973 Two-wire power and communications for irrigation systems
12/01/2005US20050264395 Method of communication between domestic appliances and appliances implementing the method
12/01/2005US20050264299 Method and apparatus for measuring insertion loss of a conductor
12/01/2005DE10240272A9 Verfahren und Vorrichtung zur Informationsuebertagung durch Eisenbahnschienen und/oder Oberleitung Method and apparatus for Information About Meeting with railroad tracks and / or overhead line
12/01/2005CA2829307A1 Fext determination system
12/01/2005CA2566499A1 Fext determination system
11/2005
11/30/2005EP1601173A1 Entrance intercom with easy to install answering devices
11/30/2005EP1380144B1 Method and system for minimum mean square error equalization (mmse) iteratively circulating short training sequences until mse falls below a target threshold
11/30/2005CN1703872A Method of implementing virtual local area networks on electrical network communication systems
11/30/2005CN1703844A Device for power line carrier communications
11/30/2005CN1703802A Communication method and device
11/30/2005CN1703011A Initialization of a bidirectional, self-timed parallel interface with automatic testing of AC differential wire pairs
11/30/2005CN1702639A Transmission circuit, data-transfer control device and electronic equipment
11/30/2005CN1229925C Device and method for set-up information on power-line carrier communication terminal device
11/30/2005CN1229924C Method for reducing crosstalk interference
11/30/2005CN1229923C Analogue echo filter device
11/30/2005CN1229922C Communication principle test system
11/29/2005US6970772 Method and system for exchanging data in a vehicle train via a PLC data bus
11/29/2005US6970560 Method and apparatus for impairment diagnosis in communication systems
11/29/2005US6970559 Method and apparatus for detecting echo cancellers
11/29/2005US6970538 Networks for telephony and data communication
11/29/2005US6970516 Programmable polarity for high speed differential interfaces
11/29/2005US6970515 Line driver for asymmetric digital subscriber line system
11/29/2005US6970099 Apparatus, system, and method for detecting and reimpressing electrical charge disturbances on a drill-pipe
11/29/2005US6970072 Home automation module having externally powered communications port
11/29/2005CA2279444C Double side band pilot technique for a control system that reduces distortion produced by electrical circuits
11/24/2005WO2005112293A1 Indoor electric power wiring and joint box, wiring adapter, switch member, and table tap utilized for indoor electric power wiring
11/24/2005WO2005018134A3 Method and system for crosstalk cancellation
11/24/2005WO2004098117A3 Distributed gain network
11/24/2005US20050259826 Apparatus and method for transmitting signals
11/24/2005US20050259773 Method and apparatus for synchronizing transmissions
11/24/2005US20050259727 Frequency-domain decision feedback equalizing device and method
11/24/2005US20050259725 FEXT determination system
11/24/2005US20050259636 Voice over internet protocol system having dynamic gain control function and method thereof
11/24/2005US20050258933 Electronic security system
11/24/2005US20050258868 Transmission circuit, data-transfer control device and electronic equipment
11/24/2005DE19654221B4 Leitungsanschlußschaltkreis Line interface circuit
11/24/2005DE102005019164A1 Ring-Spannungserzeugungsschaltung und Verfahren zum Erzeugen einer Ring-Spannung Ring voltage generation circuit and method for generating a ring-voltage
11/24/2005DE102005018865A1 Verfahren und Vorrichtung zum Messen unter Verwendung einer Haupt- und einer entfernten Einheit Method and apparatus for measuring using a main and a remote unit
11/24/2005DE102005017217A1 Verfahren und Apparatur zur Messung von Phasenrauschen Method and apparatus for measuring phase noise
11/24/2005DE102005016986A1 Modem Modem
11/23/2005EP1598950A1 Method and coupling circuit for data transmission system in three phase power line
11/23/2005EP1598949A2 Electronic security system
11/23/2005EP1598714A2 Apparatus and method for remotely controlling household appliances
11/23/2005EP1464136B1 Time synchronization for data over a powerline modem network
11/23/2005EP1417607A4 Insertion of repeaters without timing constraints
11/23/2005EP1127423B1 Measurement of nonlinear distortion in transmitters
11/23/2005CN2742682Y Electric inductive coupling device for power high speed data communication system
11/23/2005CN1701528A Speech communication apparatus
11/22/2005US6968352 Device for digital processing with frequency filtering and reduced computation complexity
11/22/2005US6968064 Adaptive thresholds in acoustic echo canceller for use during double talk
11/22/2005US6968001 Communication receiver with virtual parallel equalizers
11/22/2005US6967946 Voice and data exchange over a packet based network with precise tone plan
11/17/2005WO2005109889A2 Apparatus and method for utilizing a pre­- existing power grid to provide internet access to a home or office or the like
11/17/2005WO2005109669A1 Method and apparatus for installing power line communication network
11/17/2005WO2005109668A1 Method and apparatus for attaching power line communications to customer premises
11/17/2005WO2005109667A1 Communication method utilizing power line