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)
10/2013
10/31/2013US20130287203 Reduction of Loudspeaker Distortion for Improved Acoustic Echo Cancellation
10/30/2013EP2656595A1 Method, device, and system for secured access to gated areas
10/30/2013CN102387272B Restraining method for residual echo in echo cancellation system
10/30/2013CN101330769B Voice input-output device and communication device
10/29/2013US8571205 Dual-purpose hardware aperture
10/29/2013US8571204 Apparatus and method for echo control in parameter domain
10/24/2013WO2013155670A1 Standby power supply circuit for 2-wire bus intercom system and apparatus thereof
10/24/2013DE202008018434U1 Stationsgerät für eine Hauskommunikationsanlage Station equipment for a home communication system
10/24/2013CA2849807A1 Standby power supply circuit for 2-wire bus intercom system and apparatus thereof
10/23/2013CN103369162A Low complexity phone echo self-adaption eliminating method
10/23/2013CN103369158A Multi-party call control method and related equipment, and communication system
10/23/2013CN102185990B Master-slave digital collinear communication system and communication method thereof
10/23/2013CN101964670B Echo suppression method and apparatus thereof
10/22/2013US8565419 Keyboard arrangement and mobile communication device incorporating same
10/22/2013US8565417 Outlet add-on module
10/22/2013US8565416 Cache-based echo canceller
10/22/2013US8565415 Gain and spectral shape adjustment in audio signal processing
10/16/2013CN102739886B Stereo echo offset method based on echo spectrum estimation and speech existence probability
10/15/2013US8559996 Power control subsystem with a plurality of current limit values
10/15/2013US8559914 Interactive personal surveillance and security (IPSS) system
10/15/2013US8559656 System and method for automatic microphone volume setting
10/15/2013US8559623 Double sliding stability space-saving slide cover lifting structure
10/15/2013US8559621 Donned and doffed headset state detection
10/15/2013US8559619 Methods and devices for reducing sidetone noise levels
10/15/2013US8559422 Telephone communication system over a single telephone line
10/09/2013CN103347138A Cyber dialogue echo eliminating method
10/09/2013CN102655558B Double-end pronouncing robust structure and acoustic echo cancellation method
10/08/2013US8553874 Display cover and case for a communication device
10/02/2013CN103339915A Method, device, and system for secured access to gated areas
10/02/2013CN103339671A Estimation and suppression of harmonic loudspeaker nonlinearities
10/01/2013US8548418 Methods and devices for distributing ringtone
10/01/2013US8548159 Waterproof structure and electronic equipment
10/01/2013US8548158 Network based timed ring suppression
10/01/2013US8547824 Systems and methods for orthogonal frequency divisional multiplexing
09/2013
09/26/2013WO2013141912A2 Hybrid compressors and compression systems
09/26/2013US20130251159 System for Detecting and Reducing Noise via a Microphone Array
09/25/2013CN203219384U Device for processing communication environment noise and mobile terminal
09/25/2013CN103327201A Elimination method and system of remaining echoes
09/25/2013CN102172008B Compact beamforming microphone assembly
09/24/2013US8542819 Outlet add-on module
09/24/2013US8542818 Vehicle call device, call system, center, and calling method
09/24/2013US8542817 Speaker volume control for voice communication device
09/19/2013US20130243184 Methods, apparatus and articles of manufacture to cancel echo for communication paths having long bulk delays
09/18/2013CN103312913A System and method of echo cancellation
09/18/2013CN103312912A Sound mixing system and method
09/18/2013CN103312911A Data processing method and electronic terminal
09/18/2013CN101878637B A method and arrangement for echo cancellation of voice signals
09/18/2013CN101855896B Method for dispensing and providing electric power for network equipment and device for the equipment
09/17/2013US8539255 Variable power over ethernet based on link delay measurement
09/17/2013US8538037 Audio signal decorrelator, multi channel audio signal processor, audio signal processor, method for deriving an output audio signal from an input audio signal and computer program
09/17/2013US8538010 Faceplate assembly for wall mounting a phone
09/17/2013US8538009 Donned and doffed headset state detection
09/17/2013US8538008 Acoustic echo canceler using an accelerometer
09/12/2013US20130236004 Method and System for Stereo Echo Cancellation for VOIP Communication Systems
09/11/2013CN102447795B Echo cancellation method and device
09/11/2013CN102347785B Echo elimination method and device
09/11/2013CN102223456B Echo signal processing method and apparatus thereof
09/10/2013US8532721 Portable electronic device having sliding display providing event notification
09/10/2013US8532696 Mobile terminal having flexible printed circuit board
09/10/2013US8532284 Telephone
09/10/2013US8532096 Local exchange routing guide information maintenance system and method
09/04/2013EP2633522A1 Echo suppression comprising modeling of late reverberation components
09/04/2013CN103283256A 接口电路和主要装置 Interface circuit and the main unit
09/04/2013CN101843082B A method and system for clock drift compensation
09/03/2013US8526600 Antihelix-conforming ear-mount for personal audio-set
09/03/2013US8526340 Selectively adaptable far-end echo cancellation in a packet voice system
08/2013
08/28/2013EP2632141A1 Postfilter for Spectral Domain Echo Cancellers to handle Non-linear Echo Components
08/28/2013CN102387273B Method and device for inhibiting residual echoes
08/28/2013CN102065190B Method and device for eliminating echo
08/27/2013USRE44460 Systems for synchronous multipoint-to-point orthogonal frequency division multiplexing communication
08/27/2013US8520836 Projection headset
08/27/2013US8520835 Method and apparatus for providing power to a network interface device via telephone lines
08/27/2013US8520821 Systems and methods for switching between computer and presenter audio transmission during conference call
08/22/2013WO2013121306A2 Audio signal processing in a communication system
08/22/2013US20130216057 Echo cancellation using closed-form solutions
08/22/2013US20130216056 Non-linear echo cancellation
08/22/2013DE10309391B4 Fernsehgegensprechanlage TV intercom
08/21/2013CN103262518A Residential-complex system
08/21/2013CN103262517A Method of indicating presence of transient noise in a call and apparatus thereof
08/21/2013CN103262163A Echo suppression comprising modeling of late reverberation components
08/20/2013US8515383 Utility powered communications gateway
08/20/2013US8515382 Power line communication methods and devices
08/20/2013US8515114 Wireless system for hearing communication devices providing wireless stereo reception modes
08/20/2013US8515086 Method and system for clock drift compensation
08/20/2013US8515056 Portable terminal with built-in antenna
08/20/2013US8515055 Adaptive filtering with flexible selection of algorithm complexity and performance
08/20/2013US8515054 Voice and data exchange over a packet based network with echo cancellation
08/14/2013EP2627065A1 Multi-receiver end echo cancellation method and system
08/14/2013CN203136002U Host of medical communication call equipment
08/14/2013CN102118530B Method and device for echo cancellation
08/14/2013CN102057428B Echo canceller
08/14/2013CN101958984B Uplink and downlink voice drive processing method, device and system
08/13/2013US8509423 Synchronous pull device for slide cover mechanism
08/07/2013EP2622834A1 Echo control optimization
08/06/2013US8503669 Integrated latency detection and echo cancellation
08/06/2013US8503659 Method and apparatus for ringback tone replacement with downloaded audio files
07/2013
07/31/2013CN203104592U Device for cancelling echoes in miniature hands-free voice communication system
07/31/2013CN103229237A Signal processing device, signal processing method, and signal processing program
07/31/2013CN102196109B Residual echo detection method and system
07/31/2013CN101795332B Communication method and system
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