| Patents for H04M 9 - Arrangements for interconnection not involving centralised switching (8,105) |
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| 02/12/2014 | CN103583033A Determining the distance and/or acoustic quality between a mobile device and a base unit |
| 02/12/2014 | CN102333055B Method and equipment for suppressing radio frequency of co-frequency relay echo |
| 02/11/2014 | US8649507 Mobile communications device enclosure |
| 02/05/2014 | EP2692123A1 Determining the distance and/or acoustic quality between a mobile device and a base unit |
| 02/05/2014 | CN103561185A Method for eliminating echoes of sparse path |
| 02/05/2014 | CN103561184A Frequency-convertible echo cancellation method based on near-end audio signal calibration and correction |
| 02/05/2014 | CN103560809A Communication device and noise eliminating method |
| 02/05/2014 | CN102568494B Optimized method, device and system for eliminating echo |
| 02/04/2014 | US8644791 Communications module apparatus, integrated circuit and method of communicating data |
| 02/04/2014 | US8644497 Method and apparatus for adding a communication connection to a vectored group |
| 02/04/2014 | US8644496 Echo suppressor, echo suppressing method, and computer readable storage medium |
| 02/04/2014 | US8644495 Echo canceler |
| 02/04/2014 | US8644494 Echo canceler |
| 02/04/2014 | US8644493 Splitter wall plates for digital subscriber line (DSL) communication systems and methods to use the same |
| 01/29/2014 | CN103548329A Transceiver |
| 01/28/2014 | US8639300 Method and apparatus for maintaining transmit audio in a half duplex system |
| 01/28/2014 | US8638655 Systems and method for orthogonal frequency divisional multiplexing |
| 01/23/2014 | US20140023188 Computation saving echo canceller for a wide band audio signal |
| 01/22/2014 | CN103533193A Residual echo elimination method and device |
| 01/22/2014 | CN102498709B Method for selecting one of two or more microphones for a speech-processing system such as a hands-free telephone device operating in a noisy environment |
| 01/21/2014 | US8634884 Sliding-type portable terminal |
| 01/21/2014 | US8634575 System for elimination of acoustic feedback |
| 01/21/2014 | US8634548 Free-stop hinge apparatus for folding-type mobile phone |
| 01/21/2014 | US8634547 Echo canceller operative in response to fluctuation on echo path |
| 01/21/2014 | US8634546 Signal processing device, echo canceller, and signal processing method |
| 01/15/2014 | CN103516922A Repeater echo cancelling device and method based on shift of frequency spectrum |
| 01/15/2014 | CN103516921A Method for controlling echo through hiding audio signals |
| 01/14/2014 | US8630726 System and method for detecting three-way call circumvention attempts |
| 01/14/2014 | US8630685 Method and apparatus for providing sidetone feedback notification to a user of a communication device with multiple microphones |
| 01/14/2014 | US8630408 Folder type terminal cover device |
| 01/14/2014 | US8630405 Echo removing apparatus |
| 01/09/2014 | WO2014005473A1 Method and system for correcting sampling rate deviation of transmitter and receiver ends |
| 01/08/2014 | CN103501397A Echo suppression compensation method for improving call completing rate of intelligent public phone |
| 01/08/2014 | CN103501396A Medical communication calling device mainframe |
| 01/08/2014 | CN102726034B A device and method for controlling echo in parameter domain |
| 01/08/2014 | CN102017434B Frequency domain echo and next cancellation |
| 01/07/2014 | US8626179 Multiple subscription resource access control |
| 01/07/2014 | US8626111 Mobile device situational awareness protocol |
| 01/07/2014 | US8625776 Detection and suppression of returned audio at near-end |
| 01/07/2014 | US8625775 Method and system for reducing echo and noise in a vehicle passenger compartment environment |
| 01/03/2014 | WO2014004790A1 Echo control through hidden audio signals |
| 01/03/2014 | WO2014000476A1 Voice noise reduction method and device for mobile terminal |
| 01/01/2014 | EP2680263A1 Estimation of low complexity coupling |
| 01/01/2014 | EP2679021A2 Systems and methods for acoustic echo cancellation with wireless microphones and speakers |
| 12/31/2013 | US8621250 Variable power over Ethernet based on link delay measurement |
| 12/31/2013 | US8619970 Echo cancellers and echo cancelling methods |
| 12/25/2013 | CN1943217B Internet facilitated emergency and general paging system |
| 12/25/2013 | CN102195674B 回波消除电路 The echo canceler circuit |
| 12/24/2013 | US8615077 Portable electronic device |
| 12/24/2013 | US8615076 Wireless digital subscriber line device having reduced RF interference |
| 12/24/2013 | US8615075 Method and apparatus for removing noise signal from input signal |
| 12/18/2013 | EP1342198B1 Call management system |
| 12/18/2013 | CN103460613A A computation saving echo canceller for a wide band audio signal |
| 12/18/2013 | CN103458137A Systems and methods for voice enhancement in audio conference |
| 12/18/2013 | CN102318328B Delay estimator |
| 12/17/2013 | US8611528 Outlet add-on module |
| 12/17/2013 | US8611520 Audio conference platform with dynamic speech detection threshold |
| 12/12/2013 | WO2013184362A1 Double-talk detection for audio communication |
| 12/12/2013 | WO2013182311A1 Method for producing a leukocyte preparation, and leukocyte preparation |
| 12/12/2013 | US20130329882 Half-Duplex Speakerphone Echo Canceler |
| 12/11/2013 | EP2672680A1 Telephone terminal and handset thereof |
| 12/11/2013 | EP2671223A1 Estimation and suppression of harmonic loudspeaker nonlinearities |
| 12/11/2013 | CN103442118A Bluetooth car hands-free phone system |
| 12/10/2013 | US8606573 Voice recognition improved accuracy in mobile environments |
| 12/10/2013 | US8606177 Apparatus and method for controlling human body contact of ground electrode, and human body communication system using the same |
| 12/10/2013 | US8605891 Adaptive gain control based on echo canceller performance information |
| 12/10/2013 | US8605890 Multichannel acoustic echo cancellation |
| 12/05/2013 | WO2013179372A1 Communication device and communication method |
| 12/04/2013 | CN103428385A Methods for processing audio signals and circuit arrangements therefor |
| 12/04/2013 | CN102625006B Method and system for synchronization and alignment of echo cancellation data and audio communication equipment |
| 12/04/2013 | CN102387269B Method, device and system for cancelling echo out under single-talking state |
| 12/03/2013 | US8600094 Mounting panel with elongated tongue |
| 12/03/2013 | US8600040 Apparatus and method for convergence control |
| 12/03/2013 | US8600039 System for low complexity adaptive ECHO and NEXT cancellers |
| 12/03/2013 | US8600038 System and method for echo cancellation |
| 12/03/2013 | US8600037 Audio quality and double talk preservation in echo control for voice communications |
| 11/28/2013 | DE102012010018A1 Haus-Kommunikationssystem mit mindestens einer Türstation und einerVielzahl von Wohnungsstationen House communication system having at least one door station and a lot number of home stations |
| 11/27/2013 | CN203313266U Intelligent terminal-PSTN gateway |
| 11/26/2013 | US8594753 Mobile terminal |
| 11/26/2013 | US8594320 Hybrid echo and noise suppression method and device in a multi-channel audio signal |
| 11/20/2013 | EP2665291A1 Interface circuit and main device |
| 11/20/2013 | EP2663979A1 Processing audio signals |
| 11/20/2013 | CN103402038A Method and device for eliminating echo of receiver from opposite side in handfree state of mobile phone |
| 11/19/2013 | US8588405 Method of communication between a communication server and a terminal |
| 11/19/2013 | US8588404 Method and apparatus for acoustic echo cancellation in VoIP terminal |
| 11/19/2013 | US8588403 Echo canceling arrangement |
| 11/14/2013 | WO2013166567A1 Method for the transmission of data between devices over sound waves |
| 11/14/2013 | US20130301825 Selectively adaptable far-end echo cancellation in a packet voice system |
| 11/13/2013 | EP2512040B1 A computation saving echo canceller for a wide band audio signal |
| 11/13/2013 | CN103391381A Method and device for canceling echo |
| 11/12/2013 | US8582781 Echo modulation methods and systems |
| 11/12/2013 | US8582755 Headset with a retractable speaker portion |
| 11/12/2013 | US8582754 Method and system for echo cancellation in presence of streamed audio |
| 11/12/2013 | US8582577 Modem with voice processing capability |
| 11/07/2013 | WO2013121306A3 Audio signal processing in a communication system |
| 11/07/2013 | DE102012009128A1 Verfahren zur Kommunikation zwischen einem mobilen Endgerät und einem Gerät der Gebäudesystemtechnik oder der Türkommunikation A method for communication between a mobile device and a device of the Building Control or the door communication |
| 11/06/2013 | CN203278965U Wireless conference coupler for supporting multi-terminal communication |
| 11/06/2013 | CN103384297A Telephone terminal and handle thereof |
| 11/06/2013 | CN102057662B 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 |
| 11/05/2013 | US8577019 Methods, apparatus and articles of manufacture to detect echo during teleconferences |