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)
09/2012
09/05/2012EP2494772A1 Method and device for cancelling acoustic echo by audio watermarking
09/05/2012CN1898943B Device and method for processing an input signal
09/05/2012CN1843023B Ultra-wide band wireless / power-line communication system for delivering audio/video content
09/05/2012CN1826017B Telephone communication system over a single telephone line
09/05/2012CN102655558A Double-end pronouncing robust structure and acoustic echo cancellation method
09/05/2012CN101617363B Double talk detector
09/04/2012US8260380 Headset with remote control
09/04/2012US8260343 Electronic devices including vertically mounted loudspeakers and related assemblies and methods
09/04/2012US8259931 Sliding mechanism and electronic device having the same
09/04/2012US8259930 Waterproof structure and electronic equipment
09/04/2012US8259929 Methods and apparatuses to provide a back up power supply for a network interface device
09/04/2012US8259928 Method and apparatus for reducing timestamp noise in audio echo cancellation
09/04/2012US8259927 Method and arrangement for the adaptive filtering of signals
09/04/2012US8259926 System and method for 2-channel and 3-channel acoustic echo cancellation
09/04/2012US8259917 System and method for generating one-way speech signal samples
08/2012
08/30/2012US20120219146 Adaptive delay compensation for acoustic echo cancellation
08/30/2012DE102011010467B4 Türstation eines Haus-Kommunikationssystems mit mindestens einer Wohnungsstation Door station of a house communication system having at least one home station
08/29/2012EP2493167A1 Adaptive delay compensation for acoustic echo cancellation
08/28/2012US8254566 Sliding mechanism and electronic device having the same
08/28/2012US8254565 Hand-held device
08/28/2012US8254564 Keypad having keys with angled engagement surfaces, and associated handheld electronic device
08/28/2012US8254561 Headset adapter with host phone detection and characterization
08/28/2012US8254560 Oscillation-echo preventing circuit and microphone/speaker unit
08/28/2012US8253863 Display unit for transmitting/receiving analog video transmitted via a long-distance transmission line
08/28/2012CA2769127A1 Adaptive delay compensation for acoustic echo cancellation
08/23/2012WO2012110614A1 Processing audio signals
08/23/2012US20120213351 Public communications intercom system
08/23/2012DE102011011989A1 Interphone system for use as bell system in multi-family house, has operating control center operating signaling units and installed in entry region of building, where signaling units stand in controlled connection with touch surface
08/23/2012DE10160813B4 Hauskommunikationsanlage House communication system
08/22/2012EP2490218A1 Method for interference suppression
08/22/2012CN102646418A Method and system for eliminating multi-channel acoustic echo of remote voice frequency interaction
08/21/2012US8249248 Telephone with an information panel
08/16/2012WO2012106926A1 A device and method for controlling echo in parameter domain
08/15/2012EP2487891A1 Prevention of an acoustic echo in full duplex systems
08/15/2012EP2324476B1 Multiple microphone switching and configuration
08/15/2012EP1665872B1 Noise damping headset with a throat microphone
08/15/2012CN202385162U Mobile terminal capable of filtering echoes
08/14/2012US8244319 Split keyboard with a dual battery pack
08/14/2012US8243961 Controlling microphones and speakers of a computing device
08/14/2012US8243918 Outlet add-on module
08/09/2012WO2012105941A1 Measuring quality of experience in telecommunication system
08/09/2012WO2012105940A1 Speech quality enhancement in telecommunication system
08/09/2012WO2012105880A1 Estimation and suppression of harmonic loudspeaker nonlinearities
08/09/2012US20120201370 Time-domain acoustic echo control
08/09/2012DE102011010467A1 Türstation eines Haus-Kommunikationssystems mit mindestens einer Wohnungsstation Door station of a house communication system having at least one home station
08/08/2012CN102629963A Method for setting up a house communication system comprising door station and residence station
08/07/2012US8238548 Controlling echo during double-talk in a voice conference
08/07/2012US8238547 Sound pickup apparatus and echo cancellation processing method
08/07/2012US8238546 Echo canceler circuit and method
08/02/2012US20120195424 Measuring quality of experience in telecommunication system
08/02/2012US20120195423 Speech quality enhancement in telecommunication system
08/02/2012US20120195184 Systems and methods for orthogonal frequency divisional multiplexing
08/01/2012EP2482533A2 Echo suppression
08/01/2012CN102625006A Method and system for synchronization and alignment of echo cancellation data and audio communication equipment
08/01/2012CN102624961A Method and terminal for preventing sound crosstalk between external loudspeaker and microphone
07/2012
07/31/2012US8233632 Method and apparatus for multi-channel audio processing using single-channel components
07/31/2012US8233612 Network apparatus capable of canceling far-end-crosstalk and network signal processing method thereof
07/31/2012US8233602 Authentication apparatus
07/26/2012DE102012103202A1 "Verfahren zum Betreiben einer Videomailbox mit einem Türkommunikationssystem" "A method of operating a video mailbox with a door communication system"
07/25/2012CN202353651U System realizing talkback communication, indication and control by two pairs of signal wires
07/25/2012CN101605146B Radio communication commanding and dispatching system
07/24/2012US8229107 Echo canceler
07/24/2012US8229106 Apparatus and methods for enhancement of speech
07/24/2012US8229105 Purposeful degradation of sidetone audio for providing feedback about transmit-path signal quality
07/19/2012WO2012096027A1 Interface circuit and main device
07/19/2012US20120183133 Device and method for controlling damping of residual echo
07/18/2012CN101258733B Discussion unit with changeable push button
07/17/2012US8223960 Apparatus and method for removing an echo signal in a signal transmission/reception apparatus of a communication system
07/17/2012US8223959 Echo cancellation in which sound source signals are spatially distributed to all speaker devices
07/17/2012US8223943 Systems and methods for computer and voice conference audio transmission during conference call via PSTN phone
07/17/2012US8223800 Telephone communication system over a single telephone line
07/17/2012CA2527080C Element management system for managing line-powered network elements
07/12/2012WO2012094528A1 Systems and methods for stereo echo cancellation
07/11/2012CN102572147A Echo eliminating method and echo eliminating equipment
07/11/2012CN102568494A Optimized method, device and system for eliminating echo
07/10/2012US8218774 Apparatus and method for processing continuous wave fields propagated in a room
07/10/2012US8218758 Sliding rail structure of a sliding cell phone and its methods
07/10/2012US8218757 Echo canceler
07/10/2012US8218756 User-controllable equalization for telephony
07/10/2012CA2596028C Delayed adaptation structure for improved double-talk immunity in echo cancellation devices
07/10/2012CA2432404C Door station apparatus with electric lock
07/05/2012US20120170735 Communication apparatus for rapidly adjusting analog echo cancellation circuit and related echo cancellation method
07/04/2012CN101179294B Self-adaptive echo eliminator and echo eliminating method thereof
07/03/2012US8213895 Multi-wideband communications over multiple mediums within a network
07/03/2012US8213600 Sliding mechanism
07/03/2012US8213599 Spring, semi-automatic sliding device using the same and sliding-type portable communication terminal
07/03/2012US8213598 Harmonic distortion residual echo suppression
07/03/2012US8213597 Audio communication device and methods for reducing echoes by inserting a training sequence under a spectral mask
07/03/2012US8213596 Method of accelerating the training of an acoustic echo canceller in a full-duplex beamforming-based audio conferencing system
07/03/2012US8213399 System for multiple use subchannels
07/03/2012US8213398 Method for multiple use subchannels
07/03/2012US8213301 Systems and methods for network channel characteristic measurement and network management
06/2012
06/28/2012WO2012088544A2 Method and system for communication
06/28/2012WO2012085903A1 Method, device, and system for secured access to gated areas
06/28/2012US20120163580 Sound processing apparatus, method, and program
06/28/2012CA2822209A1 Method, device, and system for secured access to gated areas
06/26/2012US8208673 Miniaturized acoustic boom structure for reducing microphone wind noise and ESD susceptibility
06/26/2012US8208624 Hearing aid compatible mobile phone
06/26/2012US8208623 Echo processing method and device
06/26/2012US8208622 Performance testing of echo cancellers using a white noise test signal
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