Patents
Patents for H04B 3 - Line transmission systems (31,523)
10/2011
10/19/2011CN102223159A Electric power communication system used for modern middle and primary school teaching experiments
10/19/2011CN102223158A Upstream bandwidth conditioning device
10/19/2011CN102223157A Residual echo canceller and residual echo cancellation method
10/18/2011US8042087 Method to design network-on-chip (NOC)-based communication systems
10/18/2011US8042016 Method and device for efficiently retransmitting packets in wired/wireless network
10/18/2011US8041844 Autodetection of a PCI express device operating at a wireless RF mitigation frequency
10/18/2011US8041369 Plug-in network appliance
10/18/2011US8041226 Optical transceiver with equalizing function and a method to setup the optical transceiver
10/18/2011US8041058 Audio processing with time advanced inserted payload signal
10/18/2011US8041052 Circuit for priority selection of audio signals
10/18/2011US8041051 Dual streaming with exchange of FEC streams by audio sinks
10/18/2011US8041050 Audio data reproduction system, audio data reproduction method, and electronic device used in the system
10/18/2011US8041049 Method for controlling output from ultrasonic speaker and ultrasonic speaker system
10/18/2011US8041046 Reverberation adjusting apparatus, reverberation adjusting method, reverberation adjusting program, recording medium on which the reverberation adjusting program is recorded, and sound field correcting system
10/18/2011US8040942 Method and apparatus for determining an outage in communication systems
10/18/2011US8040941 Constellation-multiplexed transmitter and receiver
10/18/2011US8040826 Apparatus and method for supporting relay service in a multi-hop relay broadband wireless access communication system
10/18/2011US8040235 Relay apparatus and electric appliance
10/18/2011US8040225 Electronic authentication system for motorcycle
10/18/2011US8040223 Device and method for enhancing sensory perception of vibrational stimuli
10/18/2011US8040201 Substrate having a structure for suppressing noise generated in a power plane and/or a ground plane, and an electronic system including the same
10/18/2011CA2414039C Auto-detecting universal appliance communication controller
10/18/2011CA2387125C Vehicle accessory microphone
10/17/2011DE202011004587U1 Lautsprechersystem als Abhörmonitor Speaker system as the monitor screen
10/13/2011WO2011127248A1 Apparatus for curing thin films on a moving substrate
10/13/2011WO2011127004A2 Dynamic modulation selection
10/13/2011WO2011085952A3 Method for data and energy transfer to the same line and corresponding data transfer system
10/13/2011WO2011059767A3 A method and an apparatus for adaptively learning a sparse impulse response of a continuous channel
10/13/2011US20110249771 Adaptive gain control based on echo canceller performance information
10/13/2011US20110249759 Multi-wideband communications over power lines
10/13/2011US20110248837 Generating Virtual Stimulation Devices and Illusory Sensations Using Tactile Display Technology
10/13/2011US20110248577 Transmission device using a plurality of elementary return conductors
10/13/2011DE102010016392A1 Interface for connecting emergency lighting system and building conductive system, has memory for storing data of emergency lighting system which is read by building conductive system
10/13/2011CA2787430A1 Apparatus for curing thin films on a moving substrate
10/12/2011EP2375578A1 Method for transmitting data from a transmitter to a receiver in an alternating current network and device for transmitting data for alternating current networks
10/12/2011EP2375543A1 Method for monitoring an energy transmission line, noise suppression by repeated data transmission
10/12/2011CN202009385U Device for transmitting network base frequency signals by at least two coaxial cables
10/12/2011CN202009384U Ship monitoring and management system for subsea pipeline maintenance
10/12/2011CN202009383U Signal distributing device
10/12/2011CN102217412A Method and apparatus for transmitting cpri signals via coaxial cable
10/12/2011CN102217205A A method for improving power output efficiency of a line driver and a device thereof
10/12/2011CN102215191A Ethernet over coax (EOC) multimode multiband composite transmission equipment
10/12/2011CN102215049A Data sending method and data sending device
10/11/2011US8037338 Data interface method and apparatus
10/11/2011US8036728 Signal processing apparatus
10/11/2011US8036284 Method and apparatus for transmitting data with reduced coupling noise
10/11/2011US8036283 Data/strobe encoding scheme circuit and data/strobe encoding method
10/11/2011US8035480 Showing management system to automatically match and control electronic lockboxes
10/11/2011US8035479 Mesh network door lock
10/11/2011CA2227267C Reconfigurable on-demand telephone and data line system
10/06/2011WO2011122061A1 Air conditioning machine
10/06/2011WO2011121658A1 Variable equalizer circuit and test device using same
10/06/2011WO2011121231A1 Connection device for receiving information coming from an electrical line integrated into a support or for sending information to the electrical line
10/06/2011US20110244844 Mobile terminal device, method of operation notification, and program of operation notification
10/06/2011US20110243354 Wired, wireless, infrared, and powerline audio entertainment systems
10/06/2011US20110243255 Low-Noise Cable
10/06/2011US20110243206 Power back-off mode and circuit for 100baset
10/06/2011US20110243127 Voice and data exchange over a packet based network
10/06/2011US20110241851 Haptic actuator systems and methods thereof
10/05/2011EP1012996B1 Method and apparatus for echo estimation and suppression
10/05/2011CN202004757U Broadband digitized signal and power supply composite cable transmission system based on OFDM (orthogonal frequency division multiplexing)
10/05/2011CN202004756U Circuit and device for transmitting signals on direct-current power wire
10/05/2011CN1578184B Method and apparatus for echo compensation
10/05/2011CN102208920A Long line transmission device for ultrasonic probe
10/05/2011CN101223726B Emulation and debug interfaces for testing an integrated circuit with an asynchronous microcontroller
10/05/2011CN101159469B Method and system for channel estimation of transmission channels by means of complementary sequences
10/04/2011USRE42789 Method for testing a communication channel
10/04/2011US8032078 Wayside monitoring systems
10/04/2011US8031799 Multi-pair gigabit ethernet transceiver
10/04/2011US8031757 Time divided pilot channel detection processing in a WCDMA terminal having a shared memory
10/04/2011US8031641 Method and system for serving multi-media data between hetero UPnP networks
10/04/2011US8031059 Communication system
09/2011
09/30/2011CA2734218A1 Binary modulation node
09/29/2011WO2011119567A1 Communication node and procedure for various means of transmission
09/29/2011WO2011119233A1 Tactile communication device for the neck
09/29/2011WO2011119081A1 Estimating pair symmetry status for a communication line
09/29/2011WO2011118543A1 Waveform equalizer circuit and waveform equalization method
09/29/2011WO2011117941A1 Communication apparatus, television receiver, video signal recording apparatus and communication method
09/29/2011WO2011116928A1 Apparatus for decoupling a radio-frequency signal transmitted on a data transmission line
09/29/2011WO2011083077A3 Device and method for compensating for and identifying far-end crosstalk
09/29/2011WO2011065969A3 Powerline carrier "zero-crossing" transformer mapping with asymmetric rf return path
09/29/2011WO2011062423A3 Apparatus and method for controlling data transmission in a wireless communication system
09/29/2011WO2006007078A8 Force sensing resistor with calibration element
09/29/2011US20110235819 Interchangeable Headphone Audio System
09/29/2011US20110235727 Communication channel calibration with nonvolatile parameter store for recovery
09/29/2011US20110235622 Method and apparatus to adjust received signal
09/29/2011US20110234339 Waveguide distortion mitigation devices with reduced group delay ripple
09/29/2011US20110234238 Simulation of printed circuit board impedance variations and crosstalk effects
09/29/2011US20110233998 Electric power supplying system
09/29/2011CA2793901A1 Apparatus for decoupling a radio-frequency signal transmitted on a data transmission line
09/28/2011EP2368329A1 Electronic device with a carrier current
09/28/2011CN201995185U 使用交流电力线传送控制信号的调光装置 Use dimming device AC power lines to carry control signals
09/28/2011CN201994936U 电力线多种载波通信转换模块 Power line carrier communication converter module variety
09/28/2011CN201994935U 一种基于电力线的调制信号可穿越变压器的通信系统 Based on the modulation signal can pass through a power line communication system transformers
09/28/2011CN201994934U 一种基于载波通讯、rs485低压电力通讯连接器 Based carrier communication, rs485 low-power communications connector
09/28/2011CN1701520B Audio system with balance setting and method for controlling balance setting
09/28/2011CN102204228A Wideband speakerphone
09/28/2011CN102204156A Independent link(s) over differential pairs using common-mode signaling
09/28/2011CN102201969A Broadband power control method, network management equipment and digital subscriber line network system
09/28/2011CN102201865A Unmanned aerial vehicle power line inspection hybrid communication system
1 ... 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 ... 316