Patents
Patents for H04B 3 - Line transmission systems (31,523)
12/2006
12/20/2006EP1518394B1 Echo processing devices for single-channel or multichannel communication systems
12/20/2006EP1238528B1 Real-time processing and management method for cancelling out the echo between loudspeaker and microphone of a computer terminal
12/20/2006EP1222746B9 Receiver for multiuser detection of cdma signals
12/20/2006CN2850173Y Domestic distributing module
12/20/2006CN1883174A System and method for frequency modulation in a modem
12/20/2006CN1882219A Wiring structure of printed circuit board transmission line
12/20/2006CN1881814A Signal combination device
12/20/2006CN1881813A Apparatus and method for realizing echo counteracting in exchanger
12/20/2006CN1291412C Oscillating clock generating circuit and method thereof
12/19/2006US7151916 Method of receiving a signal and a receiver
12/19/2006US7151828 Circuit arrangement for the analogue suppression of echoes
12/19/2006US7151379 Techniques to test transmitted signal integrity
12/14/2006WO2006133264A2 Method and apparatus for digital synthesis of microwaves
12/14/2006WO2006133152A2 Power line communication system
12/14/2006WO2006131791A1 Vectored dsl nesting
12/14/2006WO2006131678A1 Module for testing electromagnetic compatibility of a high-speed ethernet interface onboard an aircraft
12/14/2006WO2006130970A1 Echo canceller controller
12/14/2006WO2006052596A3 Adaptive equalizer with a dual-mode active taps mask generator and a pilot reference signal amplitude control unit
12/14/2006WO2005109666A3 System and method for generating a jittered test signal
12/14/2006US20060280315 System and method for delivering audio-visual content along a customer waiting line
12/14/2006US20060280135 Echo Canceller Controller
12/14/2006US20060279372 Method and apparatus for digital synthesis of microwaves
12/14/2006US20060279292 Method and apparatus for measuring a dielectric response of an electrical insulating system
12/14/2006DE102005024933A1 Information transmission system for vehicle-and airplane passenger seat method, involves using connectional power supply lines as carriers of information, and producing information signals by pulses of power supply lines
12/14/2006CA2811440A1 Method and apparatus for communicating message signals in a load control system
12/14/2006CA2611576A1 Method and apparatus for communicating message signals in a load control system
12/14/2006CA2610968A1 Module for testing electromagnetic compatibility of a high-speed ethernet interface onboard an aircraft
12/13/2006EP1732241A1 System and method of conveying data in an electronic circuit
12/13/2006EP1730821A1 Outlet add-on module
12/13/2006EP1550175B1 Communication methods and apparatus
12/13/2006CN1879308A Network aware mobile devices and operations
12/13/2006CN1879103A 数字群时延补偿器 Digital group delay compensation
12/13/2006CN1290332C DVB-ASI signal inverting adapter and system
12/12/2006US7149305 Combined sidetone and hybrid balance
12/12/2006US7148789 Handheld device having multiple localized force feedback
12/12/2006US7148788 Method for transmitting high-frequency signals to low-frequency networks and corresponding system
12/12/2006US7148726 Digital signal buffer circuit
12/12/2006CA2233951C Device for the operation of appliances, utilities and services within a building
12/12/2006CA2190045C Customer activation system for cellular network
12/07/2006WO2006129999A1 Network bus diagnosis system
12/07/2006WO2006129490A1 Transmission path driving circuit
12/07/2006WO2006129061A2 Phase difference calculator
12/07/2006WO2006129060A2 Echo delay detector
12/07/2006WO2006062922A3 Power line repeater system and method
12/07/2006WO2005039198A8 Delay-induced scattering with phase randomization and partitioned frequency hopping
12/07/2006US20060274777 Radio transceiver and radio transmitting method
12/07/2006DE102005026659B3 Apparatus for compensating for interference on receiving a data signal on which an interference signal is superimposed esp. a sinusoidal interference signal
12/07/2006CA2611302A1 Phase difference calculator
12/07/2006CA2611075A1 Echo delay detector
12/06/2006EP1729482A1 Integrated system for the running and control of machines and equipment, in particular for the treatment of foodstuff
12/06/2006EP1729427A1 Balanced transmission system
12/06/2006CN2845331Y Telephone via power line frequency carrier
12/06/2006CN1874652A Method for controlling impedance
12/06/2006CN1874174A Multimedia information network on power line in village level
12/06/2006CN1874173A Reader of carrying signal on electrical wire
12/06/2006CN1874172A Method, system and equipment for carrying out data transmission through circuit of electric current loop
12/05/2006US7146450 Control and supervisory signal transmission system for changing a duty factor of a control signal
12/05/2006US7146180 Wireless node multiple handset cordless telephone system
12/05/2006US7146011 Steering of directional sound beams
12/05/2006US7146003 Noise level calculator for echo canceller
12/05/2006US7145945 Interference-free LMS-based adaptive asynchronous receiver
12/05/2006US7145885 Method for delivering data resources
12/05/2006US7145853 Method and related apparatus for evaluating beta-parameter according to write-in result of portion of write-in data with specific content while performing optimal power control of optical disk drive
12/05/2006US7145476 2-wire push button station control system for a traffic light controlled intersection
12/05/2006US7145439 Powered device interface circuit
11/2006
11/30/2006WO2006126725A1 Power line communication system
11/30/2006WO2006126724A1 Communication apparatus enabling coexistence of systems
11/30/2006WO2006125733A2 Extraction of can-bus-signals without feedback
11/30/2006WO2006125701A1 Communication system comprising a powerline communication network and at least one other communication network, corresponding node
11/30/2006WO2005072349A3 Method and apparatus for spatially enhancing the stereo image in sound reproduction and reinforcement systems
11/30/2006US20060269002 Method for data transmission via a data transmission path with inductive transformers, and a data transmission apparatus
11/30/2006US20060268971 Testing circuit for measuring a frequency of signal output from clock generator
11/30/2006US20060268970 Apparatus for measuring jitter and method of measuring jitter
11/30/2006US20060268487 Protecting medium voltage inductive coupled device from electrical transients
11/30/2006US20060267412 Chip with embedded electromagnetic compatibility capacitors and related method
11/30/2006DE102005022270A1 Vorrichtung zur Kopplung von PLC-Signalen an eine Spannungsversorgungsleitung Device for coupling PLC signals to a voltage supply line
11/29/2006EP1727295A1 Voice speaking device
11/29/2006EP1727294A1 Transmitter and receiver with transversal filter
11/29/2006EP1725882A1 System and method for high voltage testing of twisted insulated conductors
11/29/2006EP1258120B1 Method and apparatus for implementing the training phase of adaptive decision feedback equalization
11/29/2006EP0906668B1 Apparatus for automatic sensing of line amplifier configuration for status monitoring
11/29/2006CN1871787A High frequency bypass unit
11/29/2006CN1871786A Facilities equipment communication circuit
11/29/2006CN1871750A Modular outlet
11/29/2006CN1870852A Printed circuit board with improved differential via
11/29/2006CN1870761A Interlocking modules for high packing ratios
11/29/2006CN1870454A Ac power network lan interface module
11/29/2006CN1287556C Home network system and method of providing operation history for same
11/29/2006CN1287380C Signal processing apparatus
11/28/2006US7142665 Automatic gain control for an adaptive finite impulse response and method therefore
11/28/2006US7142620 Multiple input, multiple output channel, digital receiver tuner
11/28/2006US7142619 Long subscriber loops using automatic gain control mid-span extender unit
11/28/2006US7142533 Echo canceller and compression operators cascaded in time division multiplex voice communication path of integrated access device for decreasing latency and processor overhead
11/28/2006US7142518 Monitoring communications networks
11/28/2006US7142095 Detectable warning system
11/28/2006US7141899 Component carrier
11/23/2006WO2006123940A1 Receiving device and methods for remote control in an ac power distribution network
11/23/2006WO2005109889A3 Apparatus and method for utilizing a pre­- existing power grid to provide internet access to a home or office or the like
11/23/2006US20060262942 Updating modeling information based on online data gathering
11/23/2006US20060262770 System and method of transmitting wireline single-band orthogonal frequency-division-multiplexing-based ultra wideband signal over pipeline carrying CATV broadcasting signal