Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 3 - Line transmission systems
Patents for H04B 3 - Line transmission systems (31,523)
10/2005
10/27/2005WO2005101143A1 Robotic library communication protocol
10/27/2005WO2005100059A1 Controller for an electric auxiliary heater for a motor vehicle air-conditioning system
10/27/2005WO2005074091A3 Method and apparatus for monitoring energy storage devices
10/27/2005WO2005057857A3 Dsl system estimation and parameter recommendation
10/27/2005US20050239431 Transmission circuit, CMOS semiconductor device, and design method thereof
10/27/2005US20050239400 Radio access line extending device
10/27/2005US20050239340 FEXT cancellation of mated RJ45 interconnect
10/27/2005US20050238186 Method for switching audio signals and the device of the same
10/27/2005US20050238182 Prescription remote-control system
10/27/2005US20050238107 Balanced transmitting apparatus
10/27/2005US20050238094 Method and an apparatus for measuring phase noise
10/27/2005US20050238093 Circuit and method for evaluating the performance of an adaptive decision feedback equalizer-based serializer deserializer and serdes incorporating the same
10/27/2005US20050238092 Method and system for error estimation for adaptive equalization in communication systems
10/27/2005US20050238089 Communication apparatus and communication method using digital wavelet multi carrier transmission system
10/27/2005US20050238037 Wideband frequency domain reflectometry to determine the nature and location of subscriber line faults
10/27/2005US20050237954 Digital subscriber line transmission method, apparatus and system
10/27/2005US20050237651 Device and signal processing circuit for magnetic recording, magnetic recording apparatus
10/27/2005US20050237068 Sensor cable having easily changeable entire length and allowing accurate and high speed signal transmission even when entire length is made longer, and amplifier-separated type sensor with the cable
10/27/2005US20050236258 Methods, systems, and terminals for load coil switching
10/27/2005DE102004016359A1 Abtastverfahren und -vorrichtung Scanning method and apparatus
10/27/2005CA2563405A1 Coaxial cable communications systems and apparatus employing single and multiple sinewave modulation and demodulation techniques
10/26/2005EP1589783A2 System and method for separating multiple sources using directional filtering
10/26/2005EP1589671A1 Radio access line extending device
10/26/2005EP1588571A2 Method and apparatus for evaluating and optimizing a signaling system
10/26/2005EP1588536A2 Echo detector having correlator with preprocessing
10/26/2005EP1588506A2 Light fixture wireless access points
10/26/2005EP1588501A2 Shielded energy conditioner
10/26/2005EP1588500A1 Receiver system and method for reduced swing differential clock
10/26/2005EP1208689B1 Acoustical echo cancellation device
10/26/2005EP1206866B1 Method and apparatus for reducing peak to average power ratio in digital broadcasting systems
10/26/2005CN2737072Y One-wire-control bidirectional communicator
10/26/2005CN1689292A Communication receiver with virtual parallel equalizers
10/25/2005US6959260 System and method for device co-location discrimination
10/25/2005US6959167 Noise-level adaptive residual echo suppressor
10/25/2005US6959038 High-speed decoder for a multi-pair gigabit transceiver
10/25/2005US6958782 Frequency converter
10/25/2005US6958681 Electrical device for sensing a surface
10/25/2005US6958680 Power line communication system and method of using the same
10/20/2005WO2005099112A2 Sub-block domain transformation multiple signal processing
10/20/2005US20050234662 Method and apparatus for calibrating a frequency domain reflectometer
10/20/2005US20050234661 Algorithm for estimation of multiple faults on a transmission line or waveguide
10/20/2005US20050232634 Undersea optical transmission system employing low power consumption optical amplifiers
10/20/2005US20050232540 Spectrally flexible band plans with reduced filtering requirements
10/20/2005US20050232436 Communication system using short range radio communication headset
10/20/2005US20050232412 Line state detecting apparatus and transmitting apparatus and receiving apparatus of balanced transmission system
10/20/2005US20050232379 Apparatus and method for channel estimation
10/20/2005US20050232378 Apparatus and method for echo indicator generation
10/20/2005US20050232369 Method and apparatus for wireless data transmission
10/20/2005US20050232367 Two-wire chip-to-chip interface
10/20/2005US20050232366 Data oversampling via clock and data interpolation
10/20/2005US20050232344 Power line communications device and method
10/20/2005US20050232174 Linear interference cancellation receiver for edge systems
10/20/2005US20050232171 Digital subscriber line transmission method, apparatus and system
10/20/2005US20050231355 Method and system for bidirectional data and power transmission
10/20/2005US20050231288 Differential equalizer for broadband communications systems
10/20/2005US20050231040 Radiation information management device and communication device
10/20/2005US20050231036 Adapter for communicating over power line
10/19/2005EP1522152B1 System for carrying out the line transmission of data over an electric network
10/19/2005EP1192794A4 Method and apparatus for combining voice line card and xdsl line card functions
10/19/2005CN2735667Y Channel optimizing device for power line high-speed data communication system
10/19/2005CN1685627A Method for transmitting noncontinuous electric signals
10/19/2005CN1685626A Method and system for reducing interferences due to handshake tones
10/19/2005CN1684454A Apparatus and method for echo indicator generation
10/19/2005CN1684451A Data oversampling via clock and data interpolation
10/19/2005CN1684449A Channele responding measuring method and channel responding measurer
10/19/2005CN1684382A Relay method for power carrier communication
10/19/2005CN1684091A Method and apparatus for wireless data transmission
10/19/2005CN1224287C Multiple sampling rates string interference resistant array signal noise-removing method
10/19/2005CN1224227C Self-adaptive frequency channel equalizer
10/19/2005CN1224187C Echo treatment apparatus
10/19/2005CN1224045C Adaptive equalizer operating controlled with output signal symbol and absolute value and method thereof
10/18/2005US6957240 Method and apparatus for providing an error characterization estimate of an impulse response derived using least squares
10/18/2005US6957043 Data communications system including a local beacon
10/18/2005US6956944 Method and apparatus for compensating for an echo signal component in telecommunication systems
10/18/2005US6956914 Transmit amplitude independent adaptive equalizer
10/18/2005US6956906 Powerline data communication
10/18/2005US6956830 Line echo cancellation system
10/18/2005US6956463 Method and apparatus for providing both power and communication over two wires between multiple low voltage AC devices
10/18/2005US6956461 Apparatus and method for remotely controlling household appliances
10/18/2005US6956383 Method and apparatus for implementing automated electronic package transmission line characteristic impedance verification
10/18/2005CA2187753C Improved adsl compatible discrete multi-tone apparatus
10/13/2005WO2005096002A1 Radiation information management device and communication device
10/13/2005WO2005094427A2 Crosstalk equalizer
10/13/2005WO2005094321A2 Undersea optical transmission system employing low power consumption optical amplifiers
10/13/2005WO2005002295A3 Circuit and method for suppression of electromagnetic coupling and switching noise in multilayer printed circuits boards
10/13/2005US20050228604 Method and apparatus for calibrating a frequency domain reflectometer
10/13/2005US20050228541 Robotic library communication protocol
10/13/2005US20050227517 Cable length detection apparatus and method for a keyboarding video mouse switch
10/13/2005US20050226438 Parametric ring emitter
10/13/2005US20050226355 Receiver circuit comprising equalizer
10/13/2005US20050226315 Method and apparatus for tuning equalizer
10/13/2005US20050226226 Network for telephony and data communication
10/13/2005US20050226200 A Power Line Communication System that Enables Low-Cost Last Mile Access to any Legacy or Emerging Network Infrastructure
10/13/2005US20050225329 Correction of loss and dispersion in cable fault measurements
10/13/2005DE102004013606A1 Vorrichtung zur Messung von Störungen oder Unterbrechungen in der inneren Glättungsschicht in Mittel- und Hochspannungskabeln Apparatus for measurement of disturbances or interruptions in the inner layer smoothing in medium and high voltage cables
10/13/2005DE102004011457A1 Aktor und Verfahren zum Betreiben eines Aktors Actuator and method of operating an actuator
10/13/2005CA2561559A1 Undersea optical transmission system employing low power consumption optical amplifiers
10/12/2005EP1585279A2 Receiver circuit comprising equalizer
10/12/2005EP1585230A1 System and method for data retrieval in AC power tolls via an AC line cord device
10/12/2005EP1584504A1 Control device for a vehicle air-conditioning electric additional heating
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