H04M 9 - Arrangements for interconnection not involving centralised switching

Patents for H04M 9 - Arrangements for interconnection not involving centralised switching (8,105)
12/2009
12/08/2009	US7630491 Speaker enhancer and method of use
12/08/2009	US7630490 Method and apparatus for DC feed
12/08/2009	US7630489 Adaptive communication systems and methods
12/03/2009	US20090296921 Method And Device For Transmitting Data Packets
12/03/2009	US20090296920 Echo cancellation balance using noise generator and average power detection
12/01/2009	US7627304 Power line communication apparatus and power line communication method
12/01/2009	US7627112 Sound guide for speaker and handset for mobile communication using the same
12/01/2009	US7627111 Noise matching for echo cancellers
11/2009
11/25/2009	CN201352383Y Wireless talkback warning doorbell
11/25/2009	CN101589604A Phone-line-powered lighting devices and methods of using same
11/25/2009	CN100563288C A method to eliminate echo number-receiving and conference system
11/24/2009	US7623654 Systems and methods for interfacing telephony devices with cellular and computer networks
11/24/2009	US7623653 Systems and methods for passing through alternative network device features to plain old telephone system (POTS) devices
11/24/2009	US7623641 Audio communication unit
11/24/2009	US7623640 Door intercom system
11/24/2009	US7623440 Method and system for adaptive modulation
11/24/2009	CA2328006C Linear predictive coding based acoustic echo cancellation
11/19/2009	DE102008017231A1 House intercom transmission and reception device operating method, involves executing signal compensation working against cause of signal status based on predefined status of device on transmission and reception side
11/18/2009	CN201349253Y Noise removal device and communication equipment
11/17/2009	US7620176 Adjustable view stand
11/17/2009	US7620175 Handset device with audio porting
11/17/2009	US7620174 Touchpad
11/17/2009	US7620173 Headset with integrated boom clip
11/17/2009	US7620172 Method and system for eliminating noises and echo in voice signals
11/17/2009	US7620171 Method and apparatus for powering a DS3 device
11/12/2009	US20090279686 Echo path change detection in telecommunications networks
11/12/2009	US20090279685 Detection of double talk in telecommunications networks
11/11/2009	EP2117256A1 Telephone communication network
11/11/2009	EP2117221A2 Device and method for generating a side tone
11/10/2009	USRE40959 Optic cable exit trough with bypass
11/10/2009	US7616774 Clampless headset mounting assembly
11/10/2009	US7616760 Headset for use with a communication and/or multimedia device
11/10/2009	US7616759 Telephone line switching device
11/04/2009	EP1698159B1 System and method for enhanced stereo audio
11/04/2009	EP1301040B1 Electronic digital door opener
11/03/2009	US7613529 System for eliminating acoustic feedback
11/03/2009	US7613294 Hands free aural device holder
11/03/2009	US7613293 Hinge apparatus for a portable terminal and portable terminal having the same
11/03/2009	US7613291 Echo path change detection using dual sparse filtering
11/03/2009	US7612680 First aid information for cellular telephones and electronic devices
10/2009
10/27/2009	US7609833 Rotating module
10/22/2009	WO2009128566A1 Sound pickup apparatus and conference telephone
10/22/2009	WO2009128274A1 Intercom system, portable talking device, and led illuminating device
10/22/2009	US20090262912 Splitterless Communication
10/22/2009	US20090262911 Repeaterless Backhaul
10/21/2009	EP1129526B1 Methods and apparatus for providing echo suppression using frequency domain nonlinear processing
10/21/2009	CN101562669A Method of adaptive full duplex full frequency band echo cancellation
10/21/2009	CN101562668A Stationary device for a house intercom system
10/21/2009	CN100553362C Residential community household automatic system and central server therefor
10/20/2009	US7607033 Methods and apparatus for provisioning phantom power to remote devices
10/15/2009	US20090257580 Function for controlling line powered network element
10/15/2009	US20090257579 Echo Canceller
10/15/2009	US20090257578 Network Apparatus Capable of Canceling Far-End-Crosstalk and Network Signal Processing Method thereof
10/15/2009	DE102008017637A1 Home station for door intercom system, has electrical components fastened to rear side of printed circuit board, and projecting into lug body, where lug body projects over wall supporting surface of housing
10/14/2009	CN100550951C Device and method for echo elimination
10/14/2009	CN100550950C An echo canceller circuit and method
10/13/2009	US7603486 Network management system providing logic signals over communication lines for detecting peripheral devices
10/13/2009	US7602926 Stationary spectral power dependent audio enhancement system
10/13/2009	CA2499249C Method and apparatus for optimizing speakerphone performance based on tilt angle
10/08/2009	WO2009121372A1 Intelligent softphone interface
10/08/2009	DE102008017638A1 Door intercom unit for use as e.g. door station, in office building, has electronic module in computer unit producing and/or receiving data contents, which are transferred by standardized network protocol
10/07/2009	CN201323609Y Medical nursing communication machine for preventing squeaking and echo
10/07/2009	CN201323608Y Two-wire system nursing communication device with large installed capacity
10/07/2009	CN101552849A Echo canceler circuit and method
10/06/2009	US7599487 Sliding type hinge device and personal portable device using the same
10/06/2009	US7599486 Telescopic boom with conductive spring connectors
10/06/2009	US7599484 Element management system for managing line-powered network elements
10/06/2009	US7599483 Echo canceler circuit and method
10/06/2009	US7599432 Method and apparatus for dynamically inserting gain in an adaptive filter system
10/01/2009	US20090245504 Power Supply with Digital Control Loop
10/01/2009	US20090245502 Acoustic echo canceler
10/01/2009	DE202008012991U1 Station für eine Sprechanlage Station for intercom
09/2009
09/29/2009	US7596390 Cellular phone
09/29/2009	US7596220 Echo cancellation using adaptive IIR and FIR filters
09/29/2009	US7596081 Method and system for training sequences
09/29/2009	CA2539798C A method to reduce training time of an acoustic echo canceller in a full-duplex beamforming-based audio conferencing system
09/24/2009	US20090238065 System and method for contention based tones in a multipoint-to-point orthogonal frequency division multiplexing system
09/23/2009	EP1277370B1 Telephone communication system over a single telephone line
09/23/2009	CN100544223C Device and method for carrying out multichannel acoustic echo compensation with a variable number of channels
09/22/2009	US7593524 Hinge arrangement
09/22/2009	US7593394 Telephone communication system over a single telephone line
09/22/2009	US7593031 Integrated desktop videoconferencing system
09/22/2009	CA2399016C Improved system and method for implementation of an echo canceller
09/17/2009	US20090232297 Echo canceler and echo canceling method
09/16/2009	EP2101480A2 Echo canceller and echo cancelling method
09/16/2009	CN101536342A Method and arrangement for the adaptive filtering of signals
09/16/2009	CN100542184C Termination block
09/15/2009	US7590404 Surface wave communications between a remote antenna and a base station that is co-located with another base station
09/15/2009	US7590384 Method for operating a near field communication system
09/15/2009	US7590242 Selective multimedia data encryption
09/15/2009	US7590234 Keypad with flanged keys for high audio front porting communication products
09/15/2009	CA2546535C A double talk activity detector and method for an echo canceler circuit
09/15/2009	CA2546530C A downlink activity and double talk probability detector and method for an echo canceler circuit
09/11/2009	WO2009110961A1 Frequency domain echo and next cancellation
09/11/2009	WO2009110809A1 Method and apparatus for acoustic echo cancellation in voip terminal
09/10/2009	US20090225980 Gain and spectral shape adjustment in audio signal processing
09/10/2009	US20090225818 Systems and method for orthogonal frequency divisional multiplexing
09/08/2009	US7587043 Seals for communication devices and method for assembling communication device
09/08/2009	US7587042 High performance ADSL line conditioner system and method
09/03/2009	DE202008005713U1 Schaltkreis zur Funk-Übertragung von Signalen mit hoher Funk-Reichweite Circuit for wireless transmission of signals with high radio range

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