Patents
Patents for H04B 3 - Line transmission systems (31,523)
02/2012
02/21/2012US8121180 Automatic output drive level control in home networking transceiver
02/21/2012US8121179 Wireless relay device and wireless relay method
02/21/2012US8120460 Electronic key provisioning
02/21/2012US8120442 Semiconductor device
02/16/2012WO2012021774A2 Systems and methods for downhole ofdm communications
02/16/2012WO2012021770A1 Agile switched-load resonating transmitter for passband power line communication
02/16/2012WO2012021299A1 Digital two way automatic communication system (twacs) outbound receiver and method
02/16/2012US20120040757 Apparatus and method of audio reproduction
02/16/2012US20120040606 Outdoor lighting systems and methods for wireless network communications
02/16/2012US20120039374 Time-domain searching in a test and measurement instrument
02/16/2012US20120039372 Communication Between Modems in XPIC Configuration For Wireless Applications
02/16/2012US20120038468 Multidirectional controller with shear feedback
02/16/2012CA2807495A1 Systems and methods for downhole ofdm communications
02/16/2012CA2807001A1 Digital two way automatic communication system (twacs) outbound receiver and method
02/15/2012EP2417758A1 Method and apparatus for configuring virtual noise parameters of very high speed digital subscriber line
02/15/2012CN202145689U Intelligent illumination Internet of Things system
02/15/2012CN102355405A Method for routing and forwarding packet of power line communication system of low-voltage distribution network
02/15/2012CN102355313A Power line communication method based on channel cognitive technology
02/15/2012CN102355283A ASIC (application-specific integrated circuit) chip applicable to low-voltage power line carrier communication
02/15/2012CN102355282A Method for crosstalk suppression in logout of subscriber in digital subscriber line system
02/14/2012US8116476 Audio signal receiving apparatus, audio signal receiving method and audio signal transmission system
02/14/2012US8116475 Audio generating module
02/14/2012US8116471 Audio signal dereverberation
02/14/2012US8116363 Method of determining true error vector magnitude in a wireless LAN
02/14/2012US8116356 Linear transformation matrices for distributed diversity
02/14/2012US8116240 Bi-directional bridge circuit having high common mode rejection and high input sensitivity
02/14/2012US8116198 Method for configuring a telecommunication system
02/14/2012US8115605 Power line communications device in which physical communications protocol layer operation is dynamically selectable
02/14/2012US8115566 Integrated front-end passive equalizer and method thereof
02/09/2012WO2012017609A1 Adaptive receiver system and adaptive transceiver system
02/09/2012WO2011104060A3 Control device for transmitting an item of control information to a lamp unit and method
02/09/2012US20120033825 Captioned Audio and Content Delivery System with Localizer and Sound Enhancement
02/09/2012US20120033747 Systems and Methods for Powering Circuits for a Communications Interface
02/09/2012US20120033746 Cable system with selective device activation for a vehicle
02/09/2012US20120033745 Power device and safety control method thereof
02/09/2012US20120033744 Method for transmitting discrete electrical signals
02/09/2012US20120033722 Time-Domain Link Adaptation
02/09/2012US20120033089 Audio and/or video transmission system
02/09/2012US20120033081 System, method, and device for intelligence gathering and position tracking
02/09/2012US20120032608 Lighting system communications apparatus and method
02/09/2012DE19944882B4 Anordnung zum Auffinden von eingeschalteten Funktelefonen Arrangement for finding switched cellular phones
02/09/2012DE102010052661B3 Kommunikationssystem zur Steuerung von elektrischen Lasten A communication system for controlling electrical loads
02/08/2012EP2415179A1 Device and system for communicating on a supply line
02/08/2012EP1964286B1 Arrangement for a radio link
02/08/2012EP1423924B1 Equalizer system
02/08/2012CN202143186U 一种电梯语音对讲系统 An elevator speech intercom system
02/08/2012CN202143063U 载波数据传输器 Carrier data transmitter
02/08/2012CN202143062U 一种电力线窄带载波现场测试装置 A power line narrowband carrier field testing device
02/08/2012CN102349239A Method and apparatus for reducing noise in a communication system
02/08/2012CN102347811A Pulse noise detection method of power line communication channel
02/08/2012CN102347786A Power line narrowband carrier field test device applied to low voltage centralized meter reading system
02/08/2012CN102347785A Echo elimination method and device
02/08/2012CN101133632B 包括已知dsl线路扫描能力和坏接头检测能力的dsl系统估计 Including known dsl line scanning capabilities and the ability to detect bad joints dsl system estimation
02/08/2012CN101116371B 带闪光发光二极管的耳机装置 Earphone device with flash light-emitting diodes
02/07/2012US8111764 Method for transmitting channel quality information
02/07/2012US8111761 Method and apparatus for transmitting data and power across a transformer
02/07/2012US8111637 Method, arrangement and device for precompensation of crosstalk in a DSL MIMO system
02/02/2012WO2012016117A1 Systems and methods for downhole instrument communication via power cable
02/02/2012WO2012015714A2 Upbo for vectored dsl
02/02/2012WO2012014502A1 Communication method, communication apparatus, and communication frame generating method
02/02/2012US20120028506 Modular outlet
02/02/2012US20120027218 Multi-Microphone Robust Noise Suppression
02/02/2012US20120027104 Single-wire bus communication protocol
02/02/2012US20120027062 Apparatuses and methods for setting an adaptive frequency band for power line communciation
02/02/2012US20120026926 Low power mode for vectored data transmission
02/02/2012US20120025925 Common mode noise suppression circuit
02/02/2012DE102010034347A1 Verfahren und Vorrichtung zur Kommunikation über eine Lastleitung Method and apparatus for communication via a load line
02/02/2012CA2806569A1 Systems and methods for downhole instrument communication via power cable
02/01/2012EP2413300A2 Method and apparatus for sending and receiving hart communications transmission waveforms
02/01/2012EP2412106A1 Underwater communication system
02/01/2012EP2297866B1 Blind channel quality estimator
02/01/2012EP1851872B1 Method and device for connecting an additional subscriber to a telephone exchange
02/01/2012CN202135124U 一种低压电力线通信系统和设备 A low-pressure power line communication systems and equipment
02/01/2012CN202135123U 一种数字双绞线传输系统 A digital twisted pair transmission system
02/01/2012CN202135122U Signal separator and signal separator assembly
02/01/2012CN102342058A Communication device, communication method, and integrated circuit
02/01/2012CN102341990A Power supply device
02/01/2012CN102340606A Echo canceller
02/01/2012CN102340330A Apparatus and method for noise elimination of connection port of DSL network filter
02/01/2012CN102340329A Automatic switching equipment for power line communication and Ethernet over Coax
02/01/2012CN101218756B 通信设备和通信方法 Communication device and a communication method
01/2012
01/31/2012US8107967 Relay station in mobile communication system and relay transmission channel setting method
01/31/2012US8107641 Communication system and control method therefor, program, and storage medium
01/31/2012US8107640 Car-use extended device and setting method for operation interface of car-use control system
01/31/2012US8106677 Signal transmitting device suited to fast signal transmission
01/31/2012CA2509391C Fault characterization using information indicative of echo
01/26/2012WO2012012729A2 Reduced memory vectored dsl
01/26/2012WO2012010163A1 Method for evaluating the usability of a sub-carrier of a power-line signal
01/26/2012WO2012010015A1 Switching value controller, interactive terminal and intelligent home control system and method
01/26/2012US20120020416 Flexible cable and transmission system
01/26/2012US20120020400 Method for identifying received symbols corrupted by burst noise and related device
01/26/2012DE102010051710A1 Verfahren zum Bewerten der Nutzbarkeit eines Subträgers eines Powerline-Signals Method for evaluating the usability of a subcarrier of a powerline signal
01/25/2012EP2410665A2 Transmission Scheme for Multi-Input Communication
01/25/2012EP2409412A1 Method and device for cancelling interference between a signal carried by a carrier power line and a signal carried by a telephone line
01/25/2012EP2409411A1 Method and device for reducing interference between a power line carrier signal and a vdsl type signal
01/25/2012EP2408335A1 Heating apparatus for arranging under a table
01/25/2012CN202127490U Medical calling device with automatic failure detection function
01/25/2012CN202127416U Routing module of power line carrier communication ad hoc network
01/25/2012CN202127397U Programmable logic controller (PLC) carrier communication converter
01/25/2012CN1708074B Method for transmitting line signal via line equipment and transmitting equipment
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