| Patents for H04M 9 - Arrangements for interconnection not involving centralised switching (8,105) |
|---|
| 08/13/2008 | EP1180299B1 Apparatus and method for detecting far end speech |
| 08/13/2008 | EP1099332B1 Outgoing telephone line preselection based on dialed number |
| 08/13/2008 | CN101242457A Realization method for virtual city call commentator |
| 08/07/2008 | US20080187129 Method and System for Echo Cancellation In A Network Switch |
| 08/07/2008 | US20080187128 On-board hands-free communication apparatus |
| 08/07/2008 | DE102004020316B4 Türsprechanlage und Verfahren zum Betrieb einer Türsprechanlage Door entry system and method for operating a door intercom |
| 08/06/2008 | EP1697192A4 A double talk activity detector and method for an echo canceler circuit |
| 08/06/2008 | EP1692845A4 A downlink activity and double talk probability detector and method for an echo canceler circuit |
| 08/06/2008 | EP1103138B1 Device for digital processing with frequency filtering and reduced computation complexity |
| 08/06/2008 | CN100409650C Method and system for classifying network connections |
| 08/06/2008 | CN100409583C Mobile station case |
| 08/05/2008 | US7409059 Portable terminal unit |
| 08/05/2008 | US7409058 Display cover for a communication device |
| 08/05/2008 | US7409057 Nonlinear echo compensator for class B transmitter line driver |
| 08/05/2008 | US7409052 Universal intercom adapter for varying residential wiring systems |
| 08/05/2008 | US7408891 Echo canceller employing H-register and storage register |
| 08/05/2008 | US7408873 System and method for round trip delay adjustment in a multipoint-to-point orthogonal frequency division multiplexing system |
| 08/05/2008 | CA2307651C Echo canceller employing dual-h architecture having improved non-linear echo path detection |
| 08/05/2008 | CA2300837C Method and apparatus for echo estimation and suppression |
| 07/31/2008 | US20080181392 Echo cancellation and noise suppression calibration in telephony devices |
| 07/30/2008 | EP1949370A1 A system and method for providing environmental specific noise reduction algorithms |
| 07/30/2008 | EP1627519A4 Method and device for frequency translation in powerline communications |
| 07/30/2008 | CN100407594C 语音通信设备、抑制声音回声的方法和频谱整形器 A voice communication device, a method of suppressing the echo sound and spectral shaper |
| 07/29/2008 | US7406172 Reversible behind-the-head mounted personal audio set with pivoting earphone |
| 07/24/2008 | WO2008086920A1 Disturbance reduction in digital signal processing |
| 07/24/2008 | US20080176578 Using RFID and Sensored Zones to Geographically Control Cellular Phone Audio Profiles |
| 07/24/2008 | US20080175375 Echo canceler and echo canceling method |
| 07/24/2008 | US20080175364 Method and apparatus for spectral containment over telephone service lines |
| 07/23/2008 | EP1946441A2 Line drivers with extended linearity |
| 07/23/2008 | CN101227537A Broadband acoustics echo eliminating method |
| 07/22/2008 | US7403613 Holder for supporting objects in vehicle |
| 07/22/2008 | US7403612 Slide mechanism |
| 07/22/2008 | US7403611 Small size hands-free speakerphone apparatus |
| 07/22/2008 | US7403610 Echo canceller employing dual-H architecture having split adaptive gain settings |
| 07/22/2008 | US7403609 Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatus |
| 07/22/2008 | US7403608 Echo processing devices for single-channel or multichannel communication systems |
| 07/17/2008 | WO2008045357A3 Phone-line-powered lighting devices and methods of using same |
| 07/17/2008 | US20080170682 Codec circuit for pots system |
| 07/16/2008 | EP1944956A2 Filter coefficient setting device and echo prevention device |
| 07/16/2008 | EP1944761A1 Disturbance reduction in digital signal processing |
| 07/16/2008 | EP1943828A2 Sealing current terminator for inhibiting oxidation and methods therefor |
| 07/16/2008 | EP1943827A2 Method and apparatus for powering electronics associated with a telephone line twisted pair |
| 07/16/2008 | CN101223767A Method and system for low delay echo cancelling |
| 07/16/2008 | CN101222555A System and method for improving audio speech quality |
| 07/15/2008 | US7400914 Wireless headphones with connector socket |
| 07/15/2008 | US7400875 Holder for a small-sized acoustic element, and mounting structure for the holder |
| 07/15/2008 | US7400721 Pivot apparatus and method thereof |
| 07/15/2008 | US7400720 System and method for optimizing digital subscriber line based services |
| 07/15/2008 | US7400719 Subscriber line interface circuitry transceiver |
| 07/15/2008 | US7400716 Multifunctional intercom system with message recording/retrieval functions |
| 07/15/2008 | US7400572 System and method for contention based tones in a multipoint-to-point orthogonal frequency division multiplexing system |
| 07/15/2008 | CA2466579C Method and system for classifying network connections |
| 07/10/2008 | WO2008061205A3 Integrated vehicle communication system |
| 07/10/2008 | US20080165949 Multi-mode, multi-channel psychoacoustic processing for emergency communications |
| 07/09/2008 | EP1941712A1 Acoustic echo canceller |
| 07/09/2008 | CN101218820A Relay apparatus and communication system |
| 07/09/2008 | CN101217606A A method and device for front laid echo suppression switch control and DTMF signal detection |
| 07/09/2008 | CN101217605A A bus-mode paging telephone |
| 07/08/2008 | US7398341 Method and system for programmable input/output transceiver wherein transceiver is configurable to support a plurality of interface standards |
| 07/08/2008 | US7397914 Multiple path hybrid for subscriber line services |
| 07/08/2008 | US7397791 Telephone communication system over a single telephone line |
| 07/08/2008 | US7397772 Method and apparatus for acoustic echo cancellation in a communication system providing TTY/TDD service |
| 07/03/2008 | WO2005062727A3 Apparatus for canceling the vibration/silence notification mode of mobile phone and canceling method thereof |
| 07/02/2008 | EP1940139A2 Control of echo suppression filters |
| 07/02/2008 | CN101211563A Method for processing an audio signal |
| 07/01/2008 | US7394899 Device for transforming a digital signal into an acoustic one, and that makes use of a standard phase modulation |
| 07/01/2008 | US7394898 Echo removing apparatus |
| 07/01/2008 | US7394753 Training premable in multipoint-to-point communication using orthogonal frequency division multiplexing |
| 06/26/2008 | US20080152125 Parallel Split Powering |
| 06/26/2008 | US20080151791 System and method for operating a packet voice far-end echo cancellation system |
| 06/25/2008 | EP1936940A2 Echo preventing circuit and digital signal processing circuit |
| 06/25/2008 | EP1936939A1 Low complexity echo compensation |
| 06/25/2008 | CN101208953A Doorphone system with imaging function, audio terminal constituting the system, video terminal, home gateway device, and doorphone adapter |
| 06/25/2008 | CN101207644A Method for reducing influence caused by echo to subjective perception in VoIP communication |
| 06/25/2008 | CN101207411A Method and apparatus for eliminating multi-channel back wave |
| 06/24/2008 | US7391863 Method and system for an interchangeable headset module resistant to moisture infiltration |
| 06/24/2008 | US7391862 Communication unit |
| 06/24/2008 | US7391861 Input devices and their use |
| 06/24/2008 | US7391712 Method and system for forward-looking tone allocation |
| 06/24/2008 | US7391711 Method and system for adaptive modulation |
| 06/19/2008 | WO2008073057A1 Interrupt payment system |
| 06/19/2008 | US20080144808 Circuit for adjusting impedance mismatch and method therefor |
| 06/19/2008 | US20080143819 Conference link between a speakerphone and a video conference unit |
| 06/18/2008 | CA2610940A1 Low complexity echo compensation |
| 06/17/2008 | US7388956 Weather guard |
| 06/12/2008 | WO2008069660A1 Telephone device to cancel background noise at the speaker |
| 06/11/2008 | EP1930878A1 Telephone device |
| 06/11/2008 | EP1639799A4 Statistical adaptive-filter controller |
| 06/11/2008 | CN100394807C Digital push-button telephone system |
| 06/11/2008 | CN100394806C Digital push-button telephone system |
| 06/11/2008 | CN100394805C Digital push-button telephone set |
| 06/10/2008 | US7386794 Apparatus and method for performing the management of operation history |
| 06/10/2008 | US7386120 Echo canceller having a frequency domain active region location estimator |
| 06/10/2008 | US7386119 Filtered transmit cancellation in a full-duplex modem data access arrangement (DAA) |
| 06/10/2008 | US7386118 Micro modem |
| 06/10/2008 | US7385916 System for multiple use subchannels |
| 06/05/2008 | US20080133946 Methods and apparatus for provisioning phantom power to remote devices |
| 06/04/2008 | EP1927245A1 Conference system discussion unit with exchangeable modules |
| 06/04/2008 | CN101193169A Telephone system |
| 06/03/2008 | US7381589 Silicon condenser microphone and manufacturing method |