Patents
Patents for H04M 9 - Arrangements for interconnection not involving centralised switching (8,105)
08/2007
08/29/2007EP1827002A1 Method of controlling an adaptation of a filter
08/29/2007CN101026663A Telephone direct station selection
08/29/2007CN101026659A Method for realizing echo time delay positioning
08/29/2007CN100334836C Localization of an IP telecommunications terminal over a LAN
08/28/2007US7263184 Method and apparatus for active reduction of speakerphone singing
08/28/2007US7262694 Multifunctional, intelligent power and communication device
08/23/2007WO2007062634B1 Method for controlling the adaptive behavior of acoustic echo compensation
08/23/2007US20070199034 System for multi-frame alignment
08/23/2007US20070195902 Method for variable forward error correction in a multi-point to point orthogonal frequency division multiplexing system
08/23/2007US20070195901 Method and system for adaptive modulation
08/23/2007US20070195689 Method and system for adaptive modulation
08/23/2007US20070195687 Symbol alignment in multipoint-to-point orthogonal frequency division multiplexing communication
08/23/2007DE10321625B4 Signalübertragungsvorrichtung und Verfahren zum Regeln einer Signalübertragungsvorrichtung A signal transmission apparatus and method for controlling a signal transmission device
08/23/2007DE102006058540A1 Multi handset cordless telephone with integrated video capabilities for baby monitoring, has door bell module comprising page button to transmit radio frequency message, that is coupled to wireless camera unit
08/22/2007EP1040633A4 Echo canceller employing dual-h architecture having variable adaptive gain settings
08/21/2007US7260214 Programmable subscriber line circuit partitioned into high voltage interface and digital control subsections
08/21/2007US7260213 Telephone echo canceller
08/21/2007US7260212 Method and apparatus for subscriber line control circuit
08/21/2007US7260211 Method and circuit for adapting the impedance of an analog telecommunication connection
08/21/2007US7260209 Methods and apparatus for improving voice quality in an environment with noise
08/21/2007US7260103 Mode-dependent, multiple bias-driven battery switch for subscriber line interface circuit
08/21/2007CA2307845C Echo canceller employing dual-h architecture having improved coefficient transfer
08/16/2007US20070192815 Method for tone hopping in a multipoint-to-point orthogonal frequency division multiplexing communication system
08/16/2007US20070190982 Voice amplification apparatus
08/16/2007US20070190965 Reduced time packet transmission in a wireless communications system
08/16/2007US20070189547 Method and apparatus for echo cancellation
08/16/2007US20070189508 Acoustic echo canceller with multimedia training signal
08/16/2007US20070189507 Conference terminal with echo reduction for a voice conference system
08/16/2007US20070189506 Method and apparatus for echo cancellation
08/16/2007US20070189505 Detecting reflections in a communication channel
08/16/2007US20070188307 Wireless door intercom apparatus and system comprising same
08/16/2007DE202005021301U1 Türsprechanlage Door Phone
08/16/2007DE102006000761B4 Türsprechanlage mit einer Busleitung Door Phone with a bus line
08/15/2007EP1819138A1 Apparatus and method for setting filter coefficient and recording medium having a program recorded thereon
08/15/2007EP1287672B1 Method and device for acoustic echo cancellation combined with adaptive beamforming
08/14/2007US7257372 Bluetooth enabled hearing aid
08/09/2007WO2007090080A2 Voice amplification apparatus
08/09/2007US20070186261 Data-specific bandwidth allocation in multipoint-to-point communication using orthgonal frequency division multiplexing
08/09/2007US20070186260 Methods for multiframe alignment
08/09/2007US20070186258 Tone allocation in multipoint-to-point communication using orthgonal frequency division multiplexing
08/09/2007US20070183591 Dynamic bandwidth allocation
08/09/2007DE102007003551A1 Medien-Playbacksystem mit Echtzeit-Kamerabildanzeige und zugehöriges Verfahren Media playback system with real-time camera image display and associated method
08/08/2007EP1816844A1 Echo preventing circuit and digital signal processing circuit
08/08/2007EP1625668A4 Multiple channel interference cancellation
08/08/2007CN101014073A Method, system and equipment for realizing echo cancellation
08/07/2007US7254230 Subscriber line interface circuitry
08/07/2007US7254217 Fault characterization using information indicative of echo
08/02/2007DE202007005645U1 Gerät zur Steuerung handelsüblicher Handfunksprechgeräte Apparatus for controlling commercial walkie talkies
08/01/2007EP1404148B1 Howling control device and howling control method
07/2007
07/31/2007US7251322 Systems and methods for echo cancellation with arbitrary playback sampling rates
07/26/2007US20070174890 Synchronized multipoint-to-point communication using orthogonal frequency division
07/26/2007US20070172052 Internet telephony call box device implemented with a single SLIC module
07/24/2007US7248851 Method for controlling routing information for intellectual peripherals in subscriber-based ring-back-tone-service
07/24/2007US7248690 Voice signal clipping circuit and telephone set therewith
07/24/2007CA2314219C Echo canceller having improved non-linear processor
07/19/2007US20070167144 Communication apparatus and communication method
07/19/2007US20070165871 Audio system having reverberation reducing filter
07/19/2007US20070165838 Selective glitch detection, clock drift compensation, and anti-clipping in audio echo cancellation
07/19/2007US20070165837 Synchronizing Input Streams for Acoustic Echo Cancellation
07/19/2007US20070165836 Method, device, terminal and system for processing data flow
07/19/2007US20070165835 Automated utility data services system and method
07/19/2007US20070165834 System and method for adjusting hands-free phone
07/18/2007EP1726147A4 Termination block
07/18/2007CN101001293A Method for removing echo in radio earphone communication
07/18/2007CN101000697A Radio visual entrance guard device
07/17/2007US7245710 Teleconferencing system
07/17/2007US7245701 System and method for verifying central office wiring associated with line sharing
07/12/2007WO2007079113A2 Network interface device, apparatus, and methods
07/12/2007WO2007079112A2 Network interface device, apparatus, and methods
07/12/2007WO2007079111A2 Network interface device, apparatus, and methods
07/12/2007WO2007079074A2 Network interface device, apparatus, and methods
07/12/2007WO2007077536A1 Acoustic echo canceller
07/12/2007US20070162946 Round trip delay adjustment in multipoint-to-point communication using orthgonal frequency division multiplexing
07/12/2007US20070162943 Multipoint-to-point communication using orthogonal frequency division multiplexing
07/12/2007US20070161410 Mobile phone capable of controlling keyboard lock and method therefor
07/12/2007US20070160195 Network interface device, apparatus, and methods
07/12/2007US20070160194 Network interface device, apparatus, and methods
07/12/2007US20070160193 Network interface device, apparatus, and methods
07/12/2007CA2635772A1 Network interface device, apparatus, and methods
07/12/2007CA2635766A1 Network interface device, apparatus, and methods
07/12/2007CA2635754A1 Network interface device, apparatus, and methods
07/11/2007CN2922314Y Keyboard slide out device
07/11/2007CN2922040Y Line impedance monitoring and automatic match circuit
07/10/2007US7242765 Headset cellular telephones
07/10/2007US7242764 Power feeding system for telephone terminal in LAN
07/10/2007US7242762 Monitoring and control of an adaptive filter in a communication system
07/10/2007US7242761 System and method for determining the transmit power of a communication device operating on digital subscriber lines
07/05/2007US20070157278 Contention-based access to tones in orthogonal frequency division multiplexing (ofdm) waveform
07/05/2007US20070157277 Multipoint-to-point communication using orthogonal frequency division multiplexing
07/05/2007US20070154012 System and method for connecting a port connector to an interface circuit
07/05/2007US20070154011 Power line communication-enabled home terminal, method for automatically setting the same, and program and recording medium for the same
07/05/2007US20070154010 Direct access arrangement device
07/05/2007US20070154001 High Quality Audio Conferencing With Adaptive Beamforming
07/05/2007DE102006000761A1 Door intercom system has bus line, door station, several subsets and power supply unit whereby subsets or its junction boxes are provided with connectivity for programming door station
07/04/2007EP1803288A1 Echo cancellation
07/04/2007EP1374547B1 Network echo suppression in mobile stations
07/03/2007US7239699 Monitor network for a digital switching cross-connect module
07/03/2007US7239698 DOCSIS network interface device and methods and systems for using the same
07/03/2007CA2571254A1 System and method for adjusting hands-free phone
06/2007
06/28/2007WO2007072698A1 Composite telephone device
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