| Patents for H04M 9 - Arrangements for interconnection not involving centralised switching (8,105) |
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| 03/16/2010 | US7680251 Prevention of an alarm activation and supporting methods and apparatus |
| 03/11/2010 | WO2010027722A1 Method for determining updated filter coefficients of an adaptive filter adapted by an lms algorithm with pre-whitening |
| 03/11/2010 | DE102008017637B4 Wohnungsstation für eine Türsprechanlage Home station for a door intercom |
| 03/09/2010 | US7676036 Input device and personal mobile terminal having the same |
| 03/09/2010 | US7675843 Multipoint-to-point communication using orthogonal frequency division multiplexing |
| 03/04/2010 | US20100054496 System for elimination of acoustic feedback |
| 03/04/2010 | US20100054455 Method and arrangement for controlling adaptive filters |
| 03/04/2010 | US20100054454 Method and apparatus for the detection and suppression of echo in packet based communication networks using frame energy estimation |
| 03/03/2010 | EP2160006A1 Audio signal processing apparatus, audio signal processing method, and communication terminal |
| 03/02/2010 | US7672451 Small sized hinge device for use in electronic handheld device |
| 03/02/2010 | US7672448 Network interface device with a remote power source |
| 03/02/2010 | US7672447 Frequency domain echo canceller |
| 03/02/2010 | US7672446 Echo processing method and device |
| 03/02/2010 | US7672445 Method and system for nonlinear echo suppression |
| 03/02/2010 | US7672219 Multipoint-to-point communication using orthogonal frequency division multiplexing |
| 02/25/2010 | US20100046768 Method and system for elimination of acoustic feedback |
| 02/25/2010 | US20100046738 Method and apparatus for DMT crosstalk cancellation |
| 02/24/2010 | CN101656808A An echo canceler circuit and method |
| 02/23/2010 | US7668309 Portable accessory holder |
| 02/23/2010 | US7668308 In-the-ear headset and headphone enhancements |
| 02/23/2010 | US7668307 Reconfigurable and moldable electronic device |
| 02/18/2010 | US20100042853 Methods and apparatus for provisioning phantom power to remote devices |
| 02/17/2010 | EP2153439A1 Double talk detector |
| 02/17/2010 | CN201409161Y Separate passive electromagnetic coupling intercom communication device capable of penetrating metal silo wall |
| 02/17/2010 | CN100591084C Device and method for suppressing echo, in particular in telephones |
| 02/16/2010 | US7664256 Mobile terminal apparatus |
| 02/16/2010 | US7664255 Hands free aural device holder |
| 02/11/2010 | US20100034374 Vectored digital subscriber line system having modular vectoring arrangements |
| 02/11/2010 | US20100034373 Echo canceller with heavy double-talk estimation |
| 02/11/2010 | US20100034372 Method and system for distributed speakerphone echo cancellation |
| 02/10/2010 | EP2151983A1 Hands-free telephony and in-vehicle communication |
| 02/10/2010 | CN101645990A CAN bus-based voice communication system |
| 02/09/2010 | US7660425 Acoustic echo cancellation |
| 02/09/2010 | US7660411 Portable telephone |
| 02/09/2010 | US7660410 Cellular phone apparatus with keyboard |
| 02/09/2010 | US7660409 Multi-dwelling unit module for passive optical networks |
| 02/09/2010 | US7660408 Attenuation and termination circuit using impedance synthesis |
| 02/03/2010 | CN100588212C Multi-path echo eliminating system based on SIMO channel blind discrimination |
| 02/02/2010 | US7657027 Portable terminal with hinge apparatus |
| 02/02/2010 | US7657026 Sliding mechanism for slide-type portable electronic device |
| 02/02/2010 | US7657025 Microphone module and method for fabricating the same |
| 02/02/2010 | US7657023 Splitter wall plates for digital subscriber line (DSL) communication systems and methods to use the same |
| 02/02/2010 | US7656317 Reduced keypad for multi-tap input |
| 01/28/2010 | US20100022282 Echo Canceler Circuit and Method |
| 01/21/2010 | US20100014605 System for multiple use subchannels |
| 01/20/2010 | CN100583930C Method and apparatus for adaptive echo and noise control |
| 01/19/2010 | US7649989 Wearable terminal holder with pivoting D-rings |
| 01/19/2010 | US7649988 Comfort noise generator using modified Doblinger noise estimate |
| 01/14/2010 | WO2009117084A3 System and method for envelope-based acoustic echo cancellation |
| 01/13/2010 | EP1599992B1 Audibility enhancement |
| 01/12/2010 | US7646866 Slide module for a slide type electronic device |
| 01/12/2010 | US7646865 Telephone handset coupling system |
| 01/12/2010 | US7646864 Foot-actuated call answer-end apparatus |
| 01/12/2010 | US7646863 Movement powered headset |
| 01/12/2010 | US7646862 Speakerphone with a novel loudspeaker placement |
| 01/07/2010 | US20100002867 Method and arrangement for the adaptive filtering of signals |
| 01/07/2010 | US20100002866 Voice communication apparatus |
| 01/06/2010 | CN201376822Y Wireless two-way voice call and response system for construction elevator |
| 01/06/2010 | CN100579156C Network echo suppression in mobile stations |
| 01/06/2010 | CN100579135C Method, net element and network for providing power ramp-up in communication medium |
| 01/05/2010 | US7643641 System for communication enhancement in a noisy environment |
| 01/05/2010 | US7643631 Enclosure for broadband service delivery system |
| 01/05/2010 | US7643630 Echo suppression with increment/decrement, quick, and time-delay counter updating |
| 01/05/2010 | US7643629 Low voltage sensing and control of battery referenced transistors in subscriber loop applications |
| 12/31/2009 | US20090323926 Methods and systems for voice communication |
| 12/31/2009 | US20090323925 System and Method for Telephone Based Noise Cancellation |
| 12/31/2009 | US20090323924 Acoustic echo suppression |
| 12/30/2009 | EP2137954A2 Broadband data and voice communications over wireless and powerline hybrid networks |
| 12/30/2009 | CN100576866C Non-linear acoustic echo canceller |
| 12/30/2009 | CN100576865C Speed communication system suitable for wide band communication and its telephone set |
| 12/29/2009 | US7639795 Hinge device and method for wireless communication device |
| 12/29/2009 | US7637540 Latch structure |
| 12/24/2009 | US20090316883 Communication terminal |
| 12/24/2009 | US20090316882 Communication terminal, method for operating communication terminal, and computer program |
| 12/24/2009 | US20090316881 Timestamp quality assessment for assuring acoustic echo canceller operability |
| 12/24/2009 | US20090316816 Method for multiple use subchannels |
| 12/23/2009 | WO2009045446A3 Dual-band line interface circuit capable of multi-band communication |
| 12/23/2009 | CN100574514C Method and apparatus for determining a nonlinear response function for a loudspeaker |
| 12/23/2009 | CN100574351C One-key communication terminal for reducing howing during calling and communication method |
| 12/23/2009 | CN100574350C Microphone circuit having adjustable directivity pattern for reducing loudspeaker feedback and method of operating the same |
| 12/23/2009 | CN100573668C Multi-channel echo cancellation with round robin regularization |
| 12/22/2009 | US7636437 Telescopic structure for a telephone apparatus |
| 12/22/2009 | US7636436 Method for the performance testing of echo cancellers using an artificial segmented test signal |
| 12/22/2009 | US7636435 Device and method for processing audio signals and telecommunication set equipped with such a processing device |
| 12/17/2009 | WO2009149737A1 Method for reducing a disturbance in an input signal caused by an output signal in a multi-port connector, multi-port connector, and mobile device |
| 12/17/2009 | US20090310795 Noise Reduction By Mobile Communication Devices In Non-Call Situations |
| 12/16/2009 | CN101605191A Novel bluetooth headset |
| 12/16/2009 | CN101605146A Radio communication commanding and dispatching system |
| 12/15/2009 | US7634082 Retractable telephone holding unit |
| 12/15/2009 | US7634081 Method for manufacturing electronic device panel and structure thereof |
| 12/15/2009 | US7634080 Multifunctional keyboard for a mobile communication device and method of operating the same |
| 12/15/2009 | US7634071 Auto switch system and method thereof for IP phone and default audio device |
| 12/10/2009 | US20090304178 Echo canceler |
| 12/10/2009 | US20090304176 Configuration for antimicrobial multi-handest telephone system |
| 12/09/2009 | EP2129278A1 Distributed cabin interphone system for a vehicle |
| 12/09/2009 | CN101601265A High performance ADSL line conditioner system and method |
| 12/09/2009 | CN101600030A Digital adaptive filter and filtering method thereof |
| 12/09/2009 | CN101600029A System and method for reducing background noise |
| 12/09/2009 | CN100568884C System and method for enhancing sound and eliminating echo by using residual echo filter |
| 12/08/2009 | US7630502 Method for optimal microphone array design under uniform acoustic coupling constraints |