Patents
Sitemap › H04 - Electric communication technique › H04M - Telephonic communication › H04M 9 - Arrangements for interconnection not involving centralised switching
Patents for H04M 9 - Arrangements for interconnection not involving centralised switching (8,105)
11/2010
11/09/2010US7831038 Smart interface technology
11/09/2010US7831037 Four column keypad
11/09/2010US7831036 Method to reduce training time of an acoustic echo canceller in a full-duplex beamforming-based audio conferencing system
11/09/2010US7831035 Integration of a microphone array with acoustic echo cancellation and center clipping
11/04/2010WO2010125802A1 Digital voice communication control device and method
11/04/2010US20100278067 Selectively adaptable far-end echo cancellation in a packet voice system
11/03/2010EP2245826A1 Method and apparatus for detecting and suppressing echo in packet networks
11/03/2010CN201623756U Medical communication calling equipment
11/03/2010CN1622200B Method and apparatus for multi-sensory speech enhancement
11/03/2010CN101878637A A method and arrangement for echo cancellation of voice signals
11/03/2010CN101877750A Echo removing apparatus, echo removing method, and communication apparatus
11/02/2010US7826609 Method and apparatus for digital near-end echo/near-end crosstalk cancellation with adaptive correlation
10/2010
10/28/2010WO2010122398A1 Speakerphone apparatus
10/28/2010WO2010121916A1 Cross-barrier communication system and method
10/28/2010US20100272251 Echo removing apparatus, echo removing method, and communication apparatus
10/27/2010EP2244254A1 Ambient noise compensation system robust to high excitation noise
10/27/2010CN1778099B Automatic speak-up indication for conference call attendees
10/27/2010CN101873363A Method and terminal for restraining noise by using double microphones
10/26/2010US7822194 Method and system for low delay echo cancelling
10/26/2010US7822193 Estimation method and apparatus
10/26/2010US7822192 Sound event processing with echo analysis
10/26/2010US7822059 Managing contention-free time allocations in a network
10/26/2010US7821957 Acknowledgment of media waveforms between telecommunications endpoints
10/21/2010WO2010120642A1 Systems and methods for computer and voice conference audio transmission during conference call via pstn phone
10/21/2010WO2010120641A1 Systems and methods for computer and voice conference audio transmission during conference call via voip device
10/21/2010WO2010118763A1 Multichannel echo canceller
10/21/2010US20100266118 Method and System for Stereo Echo Cancellation for VOIP Communication Systems
10/21/2010CA2758650A1 Systems and methods for computer and voice conference audio transmission during conference call via voip device
10/21/2010CA2758647A1 Systems and methods for computer and voice conference audio transmission during conference call via pstn phone
10/20/2010EP2241099A1 Acoustic echo reduction
10/19/2010US7817798 Compact beamforming microphone assembly
10/19/2010US7817797 Method and apparatus for detecting echo path changes in an acoustic echo canceller
10/14/2010US20100260332 Adaptive Mute
10/13/2010EP2238590A1 Apparatus and method for computing filter coefficients for echo suppression
10/13/2010CN201608822U 适用于视频会议或电话会议系统的音频回声消除系统 Suitable for video conferencing or teleconferencing system's audio echo cancellation system
10/13/2010CN1741686B Voice collecting device and echo cancellation processing method
10/12/2010US7813499 System and process for regression-based residual acoustic echo suppression
10/12/2010US7813498 Full-duplex communication device and method of acoustic echo cancellation therein
10/12/2010US7813497 Echo canceller with interference-level controlled step size
10/12/2010US7813496 Method for reducing a computational complexity in non-linear filter arrangements as well as corresponding filter arrangements
10/12/2010US7813495 Apparatus and method for automatic gain control and echo cancellation in a network system
10/12/2010CA2539143C A method of accelerating the training of an acoustic echo canceller in a full-duplex beamforming-based audio conferencing system
10/07/2010US20100254528 Configuring Virtual Noise Parameters of Very High-Speed Digital Subscriber Line
10/06/2010EP2235928A1 A method and system for clock drift compensation
10/06/2010EP2235927A1 Apparatus and method for computing control information for an echo suppression filter and apparatus and method for computing a delay value
10/06/2010CN101855896A Dynamic current limits
10/05/2010US7809129 Acoustic echo cancellation based on noise environment
10/05/2010CA2572890C Conference terminal with echo reduction for a voice conference system
09/2010
09/30/2010US20100246804 Mitigation of echo in voice communication using echo detection and adaptive non-linear processor
09/29/2010CN1859519B Self adaptive filter and echo offset device
09/29/2010CN101848288A Simulation noise reduction system and method for microphone
09/29/2010CN101848287A Method for cancelling audio echo
09/28/2010US7804955 Flexible key plate
09/23/2010WO2010106469A1 Audio processing in a processing system
09/22/2010CN101843082A A method and system for clock drift compensation
09/21/2010US7801296 xDSL-line-interface-circuit
09/16/2010DE102007059934B4 Hauskommunikationssystem mit Türstation House communication system with door station
09/15/2010EP2095362B1 Telephone device to cancel background noise at the speaker
09/15/2010CN1917039B Method and system for enhancing quantity of speech
09/14/2010US7796767 Howling detection method, device, and acoustic device using the same
09/14/2010US7796749 Electronic device
09/14/2010US7796748 Telecommunication terminal able to modify the voice transmitted during a telephone call
09/09/2010US20100226492 Echo canceller canceling an echo according to timings of producing and detecting an identified frequency component signal
09/09/2010US20100226491 Noise cancellation for phone conversation
09/08/2010CN1716301B Method and apparatus for simplified e-commerce shopping via home shopping terminals
09/08/2010CN101826328A Echo offset method in embedded wireless visual doorbell
09/07/2010US7792555 Hinge device and portable electronic apparatus
09/07/2010US7792284 Washable shell for a handheld electronic device
09/07/2010US7792283 Panel attachment assembly, panel attachment method and telephone
09/07/2010US7792281 Delay estimation and audio signal identification using perceptually matched spectral evolution
09/07/2010US7792280 Narrow band tone detection in echo canceling system
09/07/2010US7792259 Collective housing intercom system
09/01/2010EP2223522A1 Non linear acoustic feedback suppression in a telephone device
08/2010
08/31/2010US7787618 Portable electronic device
08/31/2010US7787617 Communication terminal
08/31/2010US7787616 Portable communication apparatus
08/31/2010US7787613 Method and apparatus for double-talk detection in a hands-free communication system
08/26/2010DE102009019736A1 Verfahren zur Inbetriebnahme oder Einrichtung eines Türkommunikationssystems Method for operating or adjusting a door communication system
08/25/2010EP2222019A1 Emulation of phone extensions in a packet telephony distribution system
08/25/2010EP2221983A1 Acoustic echo cancellation
08/24/2010US7783478 Two stage frequency subband decomposition
08/24/2010US7783034 Communication privacy mask
08/24/2010US7783033 Network breaker
08/24/2010US7783032 Method and system for processing subband signals using adaptive filters
08/19/2010WO2010093942A1 External ac-dc coupling for communication interfaces
08/19/2010US20100208882 Apparatus for processing echo signal and method thereof
08/19/2010DE102009009388A1 Drahtloses Kommunikationssystem in einem Flugzeug A wireless communication system in an aircraft
08/18/2010EP2219373A2 Display unit
08/18/2010CN101808201A Display unit
08/18/2010CN101808148A Dual-mode terminal and dual-mode switching method
08/18/2010CN101207644B Method for reducing influence caused by echo to subjective perception in VoIP communication
08/18/2010CN101072267B Audio communication system
08/17/2010US7778411 Universal microphone array stand
08/17/2010US7778410 Personal audio listening device
08/17/2010US7778408 Method and apparatus for acoustic echo cancellation utilizing dual filters
08/17/2010US7778407 Statistical approach to automatic gain control for managing audio messages over a network
08/17/2010US7778401 Communication apparatus
08/12/2010WO2010090249A1 Telephone switchboard
08/12/2010US20100201884 Display unit
08/11/2010EP2216936A1 Emulation of phone extensions in a packet telephony distribution system
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