| Patents for H04M 9 - Arrangements for interconnection not involving centralised switching (8,105) |
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| 02/20/2007 | US7180998 Regulator for impedance balance of a transmission wire pair |
| 02/20/2007 | US7180869 Comprehensive echo control system |
| 02/15/2007 | WO2007018802A2 Method and system for operation of a voice activity detector |
| 02/15/2007 | WO2005070146A3 Headphone receiver apparatus for use with low power transmitters |
| 02/15/2007 | US20070037536 System, method and program for controlling mute function on telephone |
| 02/15/2007 | US20070036348 Movement-based mode switching of a handheld device |
| 02/15/2007 | US20070036346 Apparatus and method for processing data of mobile terminal |
| 02/15/2007 | US20070036345 Method and system for filtering a signal and for providing echo cancellation |
| 02/15/2007 | US20070036344 Method and system for eliminating noises and echo in voice signals |
| 02/15/2007 | US20070036343 Echo suppressor |
| 02/15/2007 | US20070036342 Method and system for operation of a voice activity detector |
| 02/15/2007 | US20070034697 Low-power hand-held transaction device |
| 02/14/2007 | CN1914819A Echo canceller with interference-level controlled step size |
| 02/13/2007 | US7177419 Methods and apparatuses for detecting and reducing non-linear echo in a multi-carrier communication system |
| 02/13/2007 | US7177416 Channel control and post filter for acoustic echo cancellation |
| 02/08/2007 | DE202006017069U1 Intercom system for bidirectional audio transmission, has signal display connected with control module, and external input/output module combining intercommunication system with power supply line that is used as electrical frequency carrier |
| 02/07/2007 | EP1750425A2 Improved system and method for implementation of an echo canceller |
| 02/07/2007 | CN2867747Y One-way microphonic speech background-noise inhibiting circuit |
| 02/07/2007 | CN1910891A Method and apparatus for single end loop testing for DSL provisioning and maintenance |
| 02/07/2007 | CN1299254C Approaching end voice detection realizing method for echo inhibitor |
| 02/06/2007 | US7174003 Method and system for troubleshooting a security system's telephone lines |
| 02/06/2007 | US7173962 High-speed modem with uplink remote-echo canceller |
| 02/06/2007 | CA2481640C A method for optimal microphone array design under uniform acoustic coupling constraints |
| 02/01/2007 | US20070025549 Telephone interface circuit |
| 02/01/2007 | US20070025548 Communication channel capacity estimation |
| 02/01/2007 | DE19521930B4 Verfahren zur Reduzierung akustischer Rückkopplungen und akustischer Echos in Fernsprechnetzen mit Freisprecheinrichtungen A method for reducing acoustic feedback and acoustic echoes in telephone networks with hands-free |
| 02/01/2007 | DE102006032967A1 Hausanlage und Verfahren zum Betreiben einer Hausanlage Heating system and method of operating a house plant |
| 02/01/2007 | DE102005035397A1 Hausanlage und Verfahren zum Betreiben einer Hausanlage Heating system and method of operating a house plant |
| 02/01/2007 | DE102005034207A1 Hausanlage, Funktionsmodul einer Hausanlage, Station einer Hausanlage und Verfahren zum Ermitteln des Typs eines Funktionsmoduls einer Hausanlage House system, function module of a house plant, house plant and station of a method for determining the type of a function module of a house plant |
| 01/31/2007 | EP1748636A1 Improved communication in passenger compartments |
| 01/31/2007 | CN1905600A Method and apparatus for eliminating acoustics echo in handless telephone communication |
| 01/30/2007 | US7171245 Method for eliminating musical tone from becoming wind shear sound |
| 01/30/2007 | US7171004 Room acoustics echo meter for voice terminals |
| 01/30/2007 | US7171003 Robust and reliable acoustic echo and noise cancellation system for cabin communication |
| 01/30/2007 | US7170927 Methods and apparatus for an ADSL transceiver |
| 01/25/2007 | US20070021094 Power over ethernet controller suitable for multiple modes |
| 01/25/2007 | US20070019803 Loudspeaker-microphone system with echo cancellation system and method for echo cancellation |
| 01/25/2007 | US20070019802 Audio data stream synchronization |
| 01/25/2007 | DE102005032958A1 Domestic installation e.g. door-bell system, operating method, involve separating connection between door station and home station responsive to reception of call at another home station, where connection serves for interchanging signal |
| 01/24/2007 | EP1745637A1 Conference terminal comprising echo reduction for a voice conferencing system |
| 01/24/2007 | EP1745469A2 Noise suppression based on bark band weiner filtering and modified doblinger noise estimate |
| 01/24/2007 | EP1540836B1 Folding mobile station with dual-movement hinge |
| 01/24/2007 | EP1232632A4 Band pass and notch filters for echo reduction with less phase distortion |
| 01/24/2007 | CN1902981A Audio system having reverberation reducing filter |
| 01/24/2007 | CN1902980A Audio system providing for filter coefficient copying |
| 01/24/2007 | CN1902901A System and method for enhanced subjective stereo audio |
| 01/24/2007 | CN1902890A Current sense circuit in a line powered network element |
| 01/23/2007 | US7167568 Microphone array signal enhancement |
| 01/23/2007 | US7167555 Method for matching an adaptive hybrid to a line |
| 01/18/2007 | WO2007008086A1 Method and system for low delay echo cancelling |
| 01/18/2007 | WO2007006920A1 Method and device for processing strong echoes, in particular in handsfree telephone terminals |
| 01/18/2007 | WO2007006919A1 Sound pick-up method and device for, in particular in handsfree telephone terminals |
| 01/17/2007 | CN1898944A System and method for enhanced stereo audio |
| 01/17/2007 | CN1898943A Device and method for processing an input signal |
| 01/16/2007 | CA2413217C Method of acoustic echo cancellation in full-duplex hands free audio conferencing with spatial directivity |
| 01/11/2007 | WO2007005206A2 Audio data stream synchronization |
| 01/11/2007 | WO2007003579A1 Device for cancelling electric or acoustic echo, corresponding method and computer programme |
| 01/11/2007 | WO2006074369A3 Wireless phone headset |
| 01/11/2007 | CA2613802A1 Audio data stream synchronization |
| 01/10/2007 | CN1893326A Interference cancellation method and communication terminal for the same |
| 01/09/2007 | US7162030 Communication device with rotating housing |
| 01/09/2007 | US7162029 Gain or input volume controller and method utilizing a modified R2R ladder network |
| 01/04/2007 | WO2007001931A2 Single-transformer digital isolation barrier |
| 01/04/2007 | WO2007001930A2 Serial protocol for agile sample rate switching |
| 01/04/2007 | WO2007001909A2 Continuous power transfer scheme for two-wire serial link |
| 01/04/2007 | US20070003055 Single-transformer digital isolation barrier |
| 01/04/2007 | US20070003054 Continuous power transfer scheme for two-wire serial link |
| 01/04/2007 | US20070003053 System and device for the remote powering of a data-processing device |
| 01/03/2007 | CN1890948A A double talk activity detector and method for an echo canceler circuit |
| 01/03/2007 | CN1890947A A downlink activity and double talk probability detector and method for an echo canceler circuit |
| 01/02/2007 | US7158633 Method and apparatus for monitoring subscriber loop interface circuitry power dissipation |
| 01/02/2007 | US7158632 Adaptive scaling and echo reduction |
| 01/02/2007 | US7158614 Metallic test access for xDSL connectors |
| 01/02/2007 | CA2394342C Real time processing and management method for canceling out the echo between a loudspeaker and a microphone of a computer terminal |
| 12/28/2006 | WO2006137388A1 Doorphone system with imaging function, audio terminal constituting the system, video terminal, home gateway device, and doorphone adapter |
| 12/28/2006 | WO2006135959A1 Information system for telecommunications |
| 12/28/2006 | US20060291646 Far-end control system and method of telephone exchange |
| 12/28/2006 | CA2613467A1 Information system for telecommunications |
| 12/27/2006 | EP1391055B1 Line interface with a matching impedance coupled to a feedback path |
| 12/27/2006 | EP1051835B1 Generating calibration signals for an adaptive beamformer |
| 12/27/2006 | EP0962091B1 An electronic voice mail message handling system |
| 12/27/2006 | CN1885711A Volume control method and system |
| 12/26/2006 | US7155018 System and method facilitating acoustic echo cancellation convergence detection |
| 12/26/2006 | US7155007 Systems and methods for reducing noise in ADSL transmissions |
| 12/26/2006 | US7155006 Method and apparatus for outbound wave subtraction using a variable offset amplifier |
| 12/26/2006 | US7154867 Echo reduction |
| 12/21/2006 | WO2005022743A3 Xdls system with improved impedance circuitry |
| 12/20/2006 | EP1733481A1 Electronic circuit to reduce noise in digital subscriber loop and communications over unshielded twisted pair metallic conductors |
| 12/20/2006 | EP1518394B1 Echo processing devices for single-channel or multichannel communication systems |
| 12/20/2006 | EP1238528B1 Real-time processing and management method for cancelling out the echo between loudspeaker and microphone of a computer terminal |
| 12/20/2006 | CN1883242A Protective acoustic cover assembly |
| 12/19/2006 | USRE39432 Impedance blocking filter circuit |
| 12/19/2006 | US7151828 Circuit arrangement for the analogue suppression of echoes |
| 12/14/2006 | WO2006130970A1 Echo canceller controller |
| 12/13/2006 | CN2847726Y Communication device special for lift |
| 12/13/2006 | CN1879393A Two-way communications device having a single transducer |
| 12/12/2006 | US7149551 Wireless headset capable of automatic link connection and method for controlling the same |
| 12/12/2006 | US7149307 Locking arrangement for a subscriber terminal device |
| 12/12/2006 | US7149306 Housing assembly of portable electronic device |
| 12/12/2006 | US7149305 Combined sidetone and hybrid balance |