| Patents for H04M 9 - Arrangements for interconnection not involving centralised switching (8,105) |
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| 06/08/2011 | EP2330807A1 Method and electronic device for improving communication quality based on ambient noise sensing |
| 06/08/2011 | CN1798193B Mobile communication terminal equipped with speaker phone function and method for removing feedback effect when speaker phone is used |
| 06/08/2011 | CN102088521A Method for improving communication quality based on ambient noise sensing and electronic device |
| 06/07/2011 | US7957771 Hands-free conferencing apparatus and method for use with a wireless telephone |
| 06/07/2011 | US7957717 System and method for differentiating between incoming and outgoing messages and identifying correspondents in a TTY communication |
| 06/07/2011 | US7957265 Systems and method for orthogonal frequency divisional multiplexing |
| 06/01/2011 | EP2327156A1 Method for determining updated filter coefficients of an adaptive filter adapted by an lms algorithm with pre-whitening |
| 05/26/2011 | WO2011062016A1 Intercom system |
| 05/26/2011 | US20110123019 Method and apparatus for cross-talk resistant adaptive noise canceller |
| 05/26/2011 | US20110121952 Data communication over power lines |
| 05/25/2011 | EP2324476A1 Multiple microphone switching and configuration |
| 05/25/2011 | CN1595827B Digital adaptive filter and acoustic echo canceller using the same |
| 05/25/2011 | CN101292508B Acoustic echo canceller |
| 05/25/2011 | CN101179635B Device, method and system for performing echo control to hand-free telephone |
| 05/24/2011 | US7949127 Headset |
| 05/19/2011 | US20110116651 Distributed sound enhancement |
| 05/19/2011 | US20110116649 Distributed sound enhancement |
| 05/19/2011 | US20110116621 Power saving technique for telephony access networks |
| 05/19/2011 | US20110116620 Distributed sound enhancement |
| 05/18/2011 | CN1926841B Acoustic echo canceller with multimedia training signal |
| 05/18/2011 | CN1905600B Method and apparatus for eliminating acoustics echo in handless telephone communication |
| 05/18/2011 | CN1706174B Integrated noise cancellation and residual echo suppression |
| 05/18/2011 | CN102065190A Method and device for eliminating echo |
| 05/18/2011 | CN101179295B Echo canceller and communication audio processing apparatus |
| 05/17/2011 | US7945043 Hands-free telephone holder |
| 05/17/2011 | US7945042 Method for switching active calls |
| 05/12/2011 | WO2011056356A1 Howling suppression using echo cancellation |
| 05/11/2011 | EP0969692B1 Device and method for processing speech |
| 05/11/2011 | CN102057662A 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 |
| 05/11/2011 | CN102054481A Device, system and method for activating and/or managing spoken dialogue |
| 05/11/2011 | CN101163178B Echo counteracting method and system in wireless communication system |
| 05/10/2011 | US7940924 Reversible behind-the-head mounted personal audio set with pivoting earphone |
| 05/10/2011 | US7940923 Speakerphone with a novel loudspeaker placement |
| 05/05/2011 | WO2011051625A1 Method and device for cancelling acoustic echo by audio watermarking |
| 05/05/2011 | WO2011024120A3 Echo canceller with adaptive non-linearity |
| 05/05/2011 | US20110103574 System and Method to Reduce Crosstalk of Digital Subscriber Lines |
| 05/05/2011 | CA2779157A1 Method and device for cancelling acoustic echo by audio watermarking |
| 05/04/2011 | EP0972355B1 Method and apparatus for controlling echo on both sides of a connection |
| 05/04/2011 | CN102045467A Audio signal sound production system for eliminating environmental noise |
| 05/03/2011 | US7937065 System and method for communicating over neutral power lines |
| 05/03/2011 | US7936662 Ranging and round trip delay timing adjustment in a multi-point to point bidirectional communication system |
| 04/28/2011 | US20110096916 Methods, apparatus and articles of manufacture to detect echo during teleconferences |
| 04/28/2011 | DE202011003022U1 Hauskommunikationsanlage House communication system |
| 04/27/2011 | EP2315200A1 Adaptive MIMO filtering in dynamically adjusted transformation areas |
| 04/27/2011 | EP2314058A1 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 |
| 04/27/2011 | CN102035562A Voice channel for vehicle-mounted communication control unit and voice communication method |
| 04/26/2011 | US7933401 Key assembly |
| 04/26/2011 | US7933295 Cable modem with voice processing capability |
| 04/21/2011 | US20110091031 Echo canceler |
| 04/20/2011 | CN1810011B Bi-stable hinge and systems using same |
| 04/20/2011 | CN1558563B Echo eliminator and use method thereof |
| 04/20/2011 | CN102025852A Detection and suppression of returned audio at near-end |
| 04/19/2011 | US7929940 System and method for transmitting wireless digital service signals via power transmission lines |
| 04/14/2011 | US20110085656 Method and System for Filtering a Signal and for Providing Echo Cancellation |
| 04/14/2011 | DE202011000178U1 Video Hauskommunikationsanlage nach DECT TM-Prinzip Video door communication system according to DECT TM-principle |
| 04/13/2011 | CN102017434A Frequency domain echo and next cancellation |
| 04/13/2011 | CN102014205A Method and device for treating voice call quality |
| 04/12/2011 | US7925239 Power line communication apparatus and power line communication method |
| 04/12/2011 | US7925008 Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus |
| 04/12/2011 | US7925007 Multi-input channel and multi-output channel echo cancellation |
| 04/12/2011 | US7925006 Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus |
| 04/12/2011 | US7925005 Longitudinal balance calibration for a subscriber line interface circuit |
| 04/07/2011 | US20110081014 Subscriber Line Interface Circuitry with POTS Detection |
| 04/07/2011 | DE202011002418U1 Haustelefon Gegensprechanlage Schnurlos HT-GSA-S Home phone intercom cordless HT-GSA-S |
| 04/06/2011 | CN201785101U Elevator alarm and voice talkback system |
| 04/05/2011 | US7920698 Microphone systems for telephones |
| 04/05/2011 | US7920697 Interaction between echo canceller and packet voice processing |
| 03/31/2011 | US20110075833 Echo Canceller With Correlation Using Pre-Whitened Data Values Received By Downlink Codec |
| 03/30/2011 | EP2302891A1 Detection and suppression of returned audio at near-end |
| 03/30/2011 | CN1839557B System and method for receiving and processing signal received from multiple terminals |
| 03/29/2011 | US7917562 Method and system for estimating and applying a step size value for LMS echo cancellers |
| 03/29/2011 | US7917098 Configurable frequency band elimination for powerline network |
| 03/29/2011 | US7916849 Systems and methods for managing the gating of microphones in a multi-pod conference system |
| 03/24/2011 | US20110069830 Detection and Suppression of Returned Audio at Near-End |
| 03/24/2011 | US20110069829 Methods, apparatus and articles of manufacture to cancel echo for communication paths having long bulk delays |
| 03/23/2011 | EP1634435B1 Echo processing method and device |
| 03/23/2011 | CN201774532U Echo cancellation repeater for mobile multimedia broadcasting |
| 03/23/2011 | CN201774530U Voice-controlled vehicle-mounted hands-free blueteeth equipment |
| 03/23/2011 | CN1798217B System for limiting receive audio |
| 03/22/2011 | US7912444 Media portion selection system and method |
| 03/22/2011 | US7912138 Timing and symbol alignment in multipoint-to-point communication using orthogonal frequency division multiplexing |
| 03/17/2011 | US20110064213 Time Domain Adaptive Filter Bank for Network Echo Reduction or Cancellation |
| 03/15/2011 | USRE42224 System and method for emergency call channel allocation |
| 03/15/2011 | US7908617 Broadcast receiving system responsive to ambient conditions |
| 03/15/2011 | US7907978 Mobile terminal |
| 03/15/2011 | US7907721 Headset with auxiliary input jacks(s) for cell phone and/or other devices |
| 03/10/2011 | US20110058667 Echo canceller having its effective filter taps adaptively controlled with echo cancellation amount monitored |
| 03/10/2011 | US20110058666 Method and system for managing communication sessions set-up between users |
| 03/08/2011 | US7903809 Power management for serial-powered device connections |
| 03/03/2011 | US20110051924 Voice and data exchange over a packet based network with echo cancellation |
| 03/03/2011 | US20110051923 Method, device, and computer-readable storage medium for producing digital side tone |
| 03/03/2011 | DE202010012363U1 Koordinatengesteuerte Eingabeeinheit mit Anzeigeelement Coordinate controlled input unit with display element |
| 03/01/2011 | US7899436 Multi-wideband communications over power lines |
| 03/01/2011 | US7899195 Adaptive howling canceller |
| 03/01/2011 | US7899181 Vehicular holding module capable of zooming information displayed on a screen and related vehicular electronic module |
| 02/24/2011 | US20110044448 System for low complexity adaptive ECHO and NEXT cancellers |
| 02/23/2011 | CN1649374B Systems and methods for echo cancellation with arbitrary playback sampling rates |
| 02/23/2011 | CN101980520A High speed data transmission method and network transmission system |
| 02/22/2011 | US7894620 Speaker set and mobile phone incorporating the same |
| 02/22/2011 | US7894598 System for limiting receive audio |