| Patents for H04M 9 - Arrangements for interconnection not involving centralised switching (8,105) |
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| 01/21/2009 | EP2018034A1 Method and system for processing sound signals in a vehicle multimedia system |
| 01/21/2009 | EP1186158B1 Methods and apparatus for improved sub-band adaptive filtering in echo cancellation systems |
| 01/20/2009 | US7480379 Mobile electronic equipment |
| 01/20/2009 | US7480378 Method and system for increasing subscriber line interface circuit voltage during ringing |
| 01/20/2009 | US7480377 Dual adaptive filter apparatus and method |
| 01/20/2009 | US7480367 Fault characterization using information indicative of echo |
| 01/20/2009 | US7480262 Telephone terminal, telephone system using telephone terminal and control method of telephone terminal |
| 01/20/2009 | US7480236 Multipoint-to-point communication using orthgonal frequency division multiplexing and identification codes |
| 01/15/2009 | US20090017878 Acoustic echo reduction in mobile terminals |
| 01/14/2009 | EP2014132A2 Echo and noise cancellation |
| 01/14/2009 | CN100452810C Key telephone system and its main device |
| 01/14/2009 | CN100452729C Network diagnostic method |
| 01/13/2009 | US7477737 Electronic apparatus, and cover and structural body thereof |
| 01/13/2009 | US7477735 System and method for enhanced stereo audio |
| 01/13/2009 | US7477682 Echo cancellation for a packet voice system |
| 01/08/2009 | US20090007380 Automatically opening hinge assembly for portable electronic devices |
| 01/08/2009 | US20090007379 Automatically opening hinge assembly for portable electronic devices |
| 01/07/2009 | EP1685557A4 Method and apparatus for reducing echo in a communication system |
| 01/07/2009 | CN101340495A Implementing method of virtual local telephone converter |
| 01/07/2009 | CN100450133C Method for shielding forward frame in mobile communication system |
| 01/06/2009 | US7474747 Electronic communication device including audio channeling |
| 01/06/2009 | US7474744 System and method for providing a local time of far end on telephone systems |
| 01/02/2009 | DE19882141B4 Adaptive Doppelfilter-Echolöschung Adaptive dual filter echo cancellation |
| 01/01/2009 | US20090003615 Audio System Providing For Filter Coefficient Copying |
| 01/01/2009 | US20090003586 Signal processor and method for canceling echo in a communication device |
| 12/31/2008 | WO2007078570A3 High performance adsl line conditioner system and method |
| 12/31/2008 | EP1520395B1 Stationary spectral power dependent audio enhancement system |
| 12/31/2008 | CN201174729Y Telephone set of digital broadcast instruction |
| 12/30/2008 | US7471788 Echo cancellers for sparse channels |
| 12/30/2008 | US7471777 Indirect DSL over loaded and unloaded loops |
| 12/25/2008 | US20080317241 Code-based echo cancellation |
| 12/24/2008 | WO2007047006A3 Method and apparatus for powering electronics associated with a telephone line twisted pair |
| 12/24/2008 | DE102007028476A1 Data communication method for motor vehicle, involves determining position of terminal e.g. mobile telephone, in motor vehicle by hands-free equipment, and attaching directional loudspeakers and directional microphones to terminal |
| 12/24/2008 | CN101330769A Voice input-output device and communication device |
| 12/24/2008 | CN100446530C Generating calibration signals for an adaptive beamformer |
| 12/18/2008 | WO2007130765A3 Echo and noise cancellation |
| 12/18/2008 | WO2007027386A3 Clipping detector for echo cancellation |
| 12/18/2008 | US20080310643 Method and system for clear signal capture |
| 12/18/2008 | US20080310617 Transmission Links |
| 12/18/2008 | US20080310609 Distributed cabin interphone system for a vehicle |
| 12/17/2008 | EP1068744B1 Method for setting up a connection between a mobile radio network and a destination call number in a private communication network |
| 12/17/2008 | CN100444604C Main terminal and a method of operating the same |
| 12/16/2008 | US7466820 Rotating apparatus for liquid crystal display |
| 12/16/2008 | US7466818 Acoustic shock prevention |
| 12/16/2008 | US7466722 Telephone communication system over a single telephone line |
| 12/16/2008 | CA2226083C Spectral noise compensation for echo cancellation |
| 12/11/2008 | US20080304654 Method and system for clear signal capture |
| 12/11/2008 | US20080304653 Acoustic echo cancellation solution for video conferencing |
| 12/10/2008 | CN101320996A Self-adapting noise elimination apparatus and method |
| 12/09/2008 | US7463877 PLC breaker bridge |
| 12/09/2008 | US7463734 Display window cover assemblies and electronic devices and methods using the same |
| 12/09/2008 | US7463732 Flexible data outlet |
| 12/04/2008 | WO2008016587A3 Calibration system for telephone |
| 12/04/2008 | WO2008016586A3 Histogram for controlling a telephone |
| 12/04/2008 | US20080298578 Wireless Headset Apparatus and Mehtods |
| 12/03/2008 | EP1998539A2 Double talk detection method based on spectral acoustic properties |
| 12/03/2008 | CN101317436A Voice information processing device, and wiring system using the same device |
| 12/03/2008 | CN101315772A Speech reverberation eliminating method based on Wiener filtering |
| 12/02/2008 | US7461012 Method and apparatus for simplified e-commerce shopping via home shopping terminals |
| 12/02/2008 | US7460664 Handsfree system and incoming call answering method in handsfree system |
| 12/02/2008 | US7460663 System and method for distributing network communication signals |
| 12/02/2008 | US7460661 Method and means for increasing inherent channel capacity for wired network |
| 11/27/2008 | WO2008096253A3 External or internal intercom and /or video door entry station equipped with aids for people with limited visual, auditory and verbal capacities |
| 11/27/2008 | US20080292093 Method and apparatus for echo cancellation |
| 11/27/2008 | DE102008023631A1 Drahtlostorsteuerung und Kommunikationssystem Drahtlostorsteuerung and communication system |
| 11/26/2008 | EP1995940A1 Method and apparatus for processing at least two microphone signals to provide an output signal with reduced interference |
| 11/25/2008 | US7457407 Mobile phone and battery-fixing device thereof |
| 11/25/2008 | US7457405 Enhanced low pass filter |
| 11/25/2008 | US7457353 Method and system for mitigating Fourier transform side lobes |
| 11/25/2008 | US7456994 Mobile telecommunications device with stylus having printhead tip |
| 11/20/2008 | WO2007146592A3 Power line communication device and method |
| 11/20/2008 | US20080284381 Portable electronic device including electric generator |
| 11/18/2008 | US7454014 Device with a loudspeaker and an ear piece cover |
| 11/18/2008 | US7454013 Multiuse telecommunications power system |
| 11/18/2008 | US7454011 ADSL communication system having echo canceller and method for downloading filter coefficient of the echo canceller |
| 11/18/2008 | US7453943 Hybrid circuit for broadband modems |
| 11/18/2008 | US7453352 Data communication over a power line |
| 11/18/2008 | CA2266277C Method and apparatus for echo control in a communication system |
| 11/13/2008 | WO2008011529A3 Over-voltage protection circuit |
| 11/13/2008 | WO2007120958A3 Enhanced tone detector including adaptive multi-bandpass filter for tone detection and enhancement |
| 11/12/2008 | CN101304460A Sound echo inhibitor for hand free voice communication |
| 11/12/2008 | CN100433764C Vehicle-carried hands-free telephone device based on microphone array |
| 11/12/2008 | CN100433576C Echo Remover |
| 11/11/2008 | US7450715 Transceiver for bidirectional frequency division multiplexed transmission |
| 11/11/2008 | US7450714 Echo canceller having improved non-linear processor |
| 11/11/2008 | US7450713 Echo canceller employing dual-H architecture having improved non-linear echo path detection |
| 11/11/2008 | US7450712 Low voltage sensing and control of battery referenced transistors in subscriber loop applications |
| 11/06/2008 | WO2008011319A3 Method and system for near-end detection |
| 11/06/2008 | US20080273690 Telecommunications Module and an Assembly Including at Least One Telecommunications Module |
| 11/06/2008 | US20080273607 Ranging and round trip delay timing adjustment in a multi-point to point bidirectional communication system |
| 11/05/2008 | CN101300822A Isolation of transmit and receive signals |
| 11/04/2008 | US7447309 Hinge mechanism |
| 11/04/2008 | US7447308 Low-noise transmitting receiving earset |
| 10/30/2008 | US20080267420 Methods and systems for reducing acoustic echoes in multichannel audio-communication systems |
| 10/30/2008 | US20080267378 Conference System |
| 10/29/2008 | EP1060610B1 Echo canceller employing dual-h architecture having split adaptive gain settings |
| 10/28/2008 | US7443978 Method and apparatus for audio coding with noise suppression |
| 10/28/2008 | US7443967 Second communication during ring suppression |
| 10/28/2008 | US7443784 Methods and systems for tone hopping |
| 10/28/2008 | CA2429518C Call management system |