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)
06/2012
06/26/2012US8208621 Systems and methods for acoustic echo cancellation
06/26/2012US8208462 Line driver for an adaptive hybrid circuit
06/21/2012WO2012081707A1 Communication system and intercom system for multiple-family dwelling
06/20/2012EP2466864A1 Transparent decorrelation of the loudspeaker signals of multi-channel echo compensators
06/20/2012CN101366265B Acoustic echo canceller
06/20/2012CN101133633B Audio system and method for acoustic echo cancellation
06/19/2012US8204472 Multi-wideband communications over power lines
06/19/2012US8204212 Phone and method for reducing noise in a subscriber line interface circuit thereof
06/19/2012US8204211 Systems and methods for selecting tones for far-end cross talk mitigation
06/19/2012US8204210 Method and system for nonlinear acoustic echo cancellation in hands-free telecommunication devices
06/19/2012US8204209 Full duplex hands-free telephone system
06/19/2012US8204198 Method and apparatus for selecting an audio stream
06/19/2012US8204175 Electronic surveillance via correlation of call legs
06/14/2012WO2012077792A1 Residential-complex system
06/13/2012CN102498709A Method for selecting one of two or more microphones for a speech-processing system such as a hands-free telephone device operating in a noisy environment
06/12/2012US8200281 Secure removable card and a mobile wireless communication device
06/12/2012US8200236 Method and apparatus for triggering a state change for a communication device
06/12/2012US8199927 Conferencing system implementing echo cancellation and push-to-talk microphone detection using two-stage frequency filter
06/12/2012US8199906 Implementation of a communication link in powered device for layer 2 support
06/12/2012US8199632 Systems and method for orthogonal frequency divisional multiplexing
06/12/2012CA2545551C Anti-howling structure
06/07/2012US20120140918 System and method for echo reduction in audio and video telecommunications over a network
06/05/2012US8194852 Low complexity echo compensation system
06/05/2012US8194851 Voice processing apparatus, voice processing system, and voice processing program
06/05/2012US8194850 Method and apparatus for voice communication
05/2012
05/31/2012US20120134489 Dynamic digit mapping based on a connected party and methods thereof
05/29/2012US8190191 Mobility middleware architecture for multiple radio access technology apparatus
05/29/2012US8190183 System and method for differentiating between incoming and outgoing messages and identifying correspondents in a TTY communication
05/29/2012US8189767 Method and system for clear signal capture
05/29/2012US8189766 System and method for blind subband acoustic echo cancellation postfiltering
05/29/2012US8189765 Multichannel echo canceller
05/29/2012US8189753 Distributed intercom system with audio bus
05/29/2012CA2534974C Ultra-wide band wireless/power-line communication system for delivering audio/video content
05/24/2012WO2012066397A1 Intercom system
05/24/2012DE102010052080A1 House signaling device i.e. intercom system, for use in e.g. multi-family house, has error detection device turned away from signal station by strand separator, when switching element is in error position
05/23/2012CN102469222A Method for setting up a house communication system comprising at least one door station and at least one residence station
05/23/2012CN101645990B CAN bus-based voice communication system
05/23/2012CN101223767B Method and system for low delay echo cancelling
05/22/2012US8184802 Adaptive analog echo/next cancellation
05/22/2012US8184801 Acoustic echo cancellation for time-varying microphone array beamsteering systems
05/22/2012US8184790 Notification of dropped audio in a teleconference call
05/21/2012DE202012002010U1 Kompakte Türkommunikationseinheit Compact door communication unit
05/16/2012CN102461205A 声学多通道消除 Multi-Channel Acoustic elimination
05/16/2012CN102461141A 用于在电话会议期间经由pstn电话传输计算机和语音会议音频的系统和方法 During the conference call via pstn telephone system and method for transmitting computer and voice conferencing for audio
05/16/2012CN102461140A 用于在电话会议期间经由VoIP装置传输计算机和语音会议音频的系统和方法 During a conference call for VoIP devices via a computer and voice conferencing audio transmission system and method
05/16/2012CN102457632A Echo cancellation method for multiple incoming sides
05/16/2012CN102457631A 一种3g无线路由器带内双音多频音消除的方法和装置 One kind of method and apparatus for a wireless router 3g band DTMF tone elimination
05/16/2012CN102457630A 房屋通信系统的住宅站 Communications systems for residential buildings stand
05/10/2012US20120114115 Full-Duplex Audio Communication Terminal
05/09/2012CN102447795A Echo cancellation method and device
05/08/2012US8175871 Apparatus and method of noise and echo reduction in multiple microphone audio systems
05/08/2012US8175263 Integrated thin client and telephony device
05/08/2012US8175262 Per tone coprocessor architecture
05/08/2012US8175261 Systems and methods for adaptive echo cancellation
05/08/2012US8175260 Echo cancellation
05/08/2012US8174956 Systems and method for orthogonal frequency divisional multiplexing
05/03/2012WO2012055687A1 Echo suppression comprising modeling of late reverberation components
05/03/2012DE102010049823A1 Wohnungsstation eines Haus-Kommunikationssystems Home station of a house communication system
05/03/2012DE102010049821A1 Türstation eines Haus-Kommunikationssystems Door station of a house communication system
05/03/2012CA2815577A1 Echo suppression comprising modeling of late reverberation components
05/01/2012US8170545 Information technology support system and method
05/01/2012US8170524 Power line communication system and an intelligent meter
05/01/2012US8170226 Acoustic echo cancellation and adaptive filters
05/01/2012US8170202 Method, terminal device and communication system for programming a button of a communication terminal device
05/01/2012US8170201 Power feeding system for telephone terminal in LAN
05/01/2012US8170200 Method and apparatus for percussive noise reduction in a conference
05/01/2012US8170199 Echo canceller
04/2012
04/26/2012WO2012052675A1 Stabilisation of the amplification gain of a microphone signal in a telephony apparatus
04/26/2012US20120099724 Device for Controlling a Supply Voltage for a Terminal
04/26/2012US20120099723 Echo canceler
04/26/2012US20120099722 Echo canceler
04/25/2012EP2444967A1 Echo suppression comprising modeling of late reverberation components
04/25/2012CN102428657A 全双工音频通信终端 Full-duplex audio communication terminal
04/25/2012CN102427499A 一种回声大小及反射时间可调的实现方法 Implementation An echo and reflection time adjustable size
04/24/2012US8165284 Slide module and portable terminal having the same
04/24/2012US8165283 Advanced ADSL splitter
04/19/2012DE102010016180B4 Türsprechanlage mit Concierge-Funktion Door Phone with concierge function
04/19/2012DE102006032967B4 Hausanlage und Verfahren zum Betreiben einer Hausanlage Heating system and method of operating a house plant
04/18/2012CN202197381U 一种用于监控环境的网络对讲装置 Network intercom device for monitoring the environment
04/18/2012CN202197344U 送话器阵列回声消除系统 Echo canceling microphone array system
04/18/2012CN101217606B 前置回声抑制开关控制和双音多频信号检测的方法和装置 Pre-echo method for inhibiting the switch control and dual-tone multi-frequency signal detection and apparatus
04/17/2012US8160650 Bidirectional slide-type mobile communication terminal and method of providing graphic user interface thereof
04/17/2012US8160263 Noise reduction by mobile communication devices in non-call situations
04/17/2012US8160241 Communication terminal device with echo canceller and its echo canceling method
04/17/2012US8160240 Echo cancellation balance using noise generator and average power detection
04/17/2012US8160239 Echo canceller and speech processing apparatus
04/17/2012US8160238 Method and apparatus for double-talk detection
04/17/2012US8160237 Multi-stage differential warping amplifier and method
04/11/2012EP2438766A1 Acoustic multi-channel cancellation
04/11/2012CN102413384A 一种回声消除双向语音对讲设备 An echo elimination of two-way voice intercom equipment
04/10/2012US8155304 Filter bank optimization for acoustic echo cancellation
04/10/2012US8155303 System and method for cancelling echo
04/10/2012US8155302 Acoustic echo canceller
04/05/2012WO2012044462A1 Echo control optimization
04/04/2012CN102405634A 扬声电话装置 Speakerphones device
04/04/2012CN102402851A 遥控器、接收器、以及声音遥控方法 Remote control receiver, and the remote control method of the sound
04/03/2012US8150323 Mobile communication terminal and method for inputting/outputting voice during playback of music data by using bluetooth
04/03/2012US8150027 Control of echo cancellation filters
04/02/2012DE202011052290U1 Telekommunikationsadapter Telecommunications Adapter
03/2012
03/29/2012US20120079014 Method and system for delayed allocation of resources
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