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)
10/2005
10/20/2005US20050232405 Method and apparatus for determining a user presence state
10/20/2005US20050232404 Method of determining a user presence state
10/20/2005US20050231586 Conference link between a speakerphone and a video conference unit
10/19/2005EP1587294A1 A speakerphone with a standard land line connection having an additional cellular phone connector
10/19/2005EP1587293A1 Wireless door telephone
10/19/2005CN1224287C Multiple sampling rates string interference resistant array signal noise-removing method
10/19/2005CN1224187C Echo treatment apparatus
10/18/2005US6956943 Method and apparatus for minimizing the telephony ring voltage power supply requirements of an integrated services hub
10/13/2005WO2005096604A1 Adaptive duplexing for amplified telephone
10/13/2005US20050226404 Multi-handset telephone system
10/12/2005EP1584178A1 Device and method for suppressing echo, in particular in telephones
10/12/2005EP1584177A1 Non-linear acoustic echo canceller
10/12/2005EP1584150A2 Method and apparatus for digital subscriber line access multiplexer stacking
10/12/2005EP1282978B1 Noise-adaptive communications signal gain
10/12/2005CN1223166C Methods and apparatus for improving sub-band adaptive filtering in echo cancellation systems
10/12/2005CN1223109C Enhancement of near-end voice signals in an echo suppression system
10/12/2005CN1223108C Echo canceling method and echo canceller
10/11/2005US6954530 Echo cancellation filter
10/06/2005WO2005091778A2 Internet facilitated emergency and general paging system
10/06/2005US20050221793 Connect customized ring back tone service only at one MSC when intersystem page is involved
10/06/2005US20050220294 Push-button hinge for handheld devices
10/06/2005US20050220292 Method of discriminating between double-talk state and single-talk state
10/06/2005DE102005011191A1 System for controlling and/or triggering output/reproduction of messages, reports and/or signals has programmable sound signal reception/control module activated depending on presence of sound signal
10/06/2005DE102004020320B3 Security entry phone for front door of house or block of flats has microphone, loudspeaker, buttons for doorbells and window over recess holding name plate
10/04/2005US6952474 Phone privacy and unobtrusiveness via voice cancellation
10/04/2005US6952473 System and method for echo assessment in a communication network
09/2005
09/30/2005CA2501980A1 Method of discriminating between double-talk state and single-talk state
09/29/2005WO2005091519A1 Voice speaking device
09/29/2005WO2005089318A2 Termination block
09/29/2005US20050213778 System for detecting and reducing noise via a microphone array
09/29/2005US20050213750 Termination block
09/29/2005US20050213748 Line extender for high speed modem data transfer
09/29/2005US20050213747 Hybrid monaural and multichannel audio for conferencing
09/29/2005US20050213746 Adaptive duplexing for amplified telephone
09/29/2005US20050213745 Voice activity detector for low S/N
09/29/2005DE202005010071U1 Multifunctional system e.g. for domestic technology, has voice installation unit for controlling audio signals between outer- and inner-plate and fitted with handsfree and dialing device
09/29/2005CA2559623A1 Termination block
09/28/2005EP1581026A1 Method for detecting and reducing noise from a microphone array
09/27/2005US6950513 Impulse response setting method for the 2-channel echo canceling filter, a two-channel echo canceller, and a two-way 2-channel voice transmission device
09/27/2005US6950511 Detection of both voice and tones using Goertzel filters
09/22/2005WO2005086757A2 Spectrally flexible band plans with reduced filtering requirements
09/22/2005US20050207567 Communications system and method utilizing centralized signal processing
09/22/2005US20050207566 Sound pickup apparatus and method of the same
09/21/2005EP1476984B1 Localization of an ip telecommunications terminal over a lan
09/21/2005CN1671161A An echo canceller circuit and method
09/21/2005CN1670823A Method for detecting and reducing noise from a microphone array
09/20/2005US6947773 Method and apparatus for reducing echo feedback in a communication system
09/20/2005US6947550 Acoustic echo cancellation
09/20/2005US6947549 Echo canceller
09/17/2005CA2497859A1 Method for detecting and reducing noise via a microphone array
09/15/2005US20050203998 Method in a digital network system for controlling the transmission of terminal equipment
09/15/2005US20050201549 Method and apparatus for optimizing speakerphone performance based on tilt angle
09/15/2005US20050201548 Telephone interface for mask
09/15/2005US20050201541 Internet facilitated emergency and general paging system
09/14/2005EP1575250A1 Method and apparatus for optimizing speakerphone performance based on tilt angle
09/14/2005CN2726237Y Plate card type echo eliminator
09/14/2005CN1669294A Echo canceller with model mismatch compensation
09/14/2005CN1668058A Recursive least square difference based subband echo canceller
09/14/2005CN1668057A Device and method for reducing white noise of mobile communication terminal
09/14/2005CN1668056A Communication device with low feedback howling and communication method thereof
09/13/2005US6943734 Multi-band omni directional antenna
09/08/2005US20050195972 Decorative concealed audio-visual interface apparatus and method
09/08/2005US20050195970 Invisible double function hinge construction
09/08/2005US20050195969 Portable interconnection system for incompatible audio communication networks
09/08/2005US20050195968 Systems and methods for network channel characteristic measurement and network management
09/07/2005EP1570628A2 Fault characterization using information indicative of echo
09/07/2005EP1570583A1 Echo cancellation device with mobile crosstalk control
09/07/2005CN1666495A Stationary spectral power dependent audio enhancement system
09/01/2005WO2005079505A2 Method and apparatus for equalizing strong pre-echoes in a multi-path communication channel
08/2005
08/31/2005EP1569357A1 Voice switch
08/31/2005CN1663230A Non stationary echo canceller
08/30/2005US6937722 Method and apparatus for echo cancellation
08/25/2005DE102005002171A1 System und Verfahren zum Bereitstellen einer Ortszeit am anderen Ende bei Telefonsystemen System and method for providing a local time at the other end in telephone systems
08/24/2005CN1658640A Echo canceler circuit and method
08/23/2005US6934387 Method and apparatus for digital near-end echo/near-end crosstalk cancellation with adaptive correlation
08/23/2005US6934386 Echo canceller
08/23/2005US6934383 Apparatus for reducing echoes and noises in telephone
08/23/2005US6932187 Protective acoustic cover assembly
08/18/2005WO2005076663A1 Audio system having reverberation reducing filter
08/18/2005WO2005076662A1 Audio system providing for filter coefficient copying
08/18/2005WO2005074602A2 Push-button hinge for handheld devices
08/18/2005US20050180562 Latch structure
08/18/2005US20050180560 System and method for operating a telephone to bypass a wireline telephone service
08/18/2005US20050180558 Method and apparatus for equalizing strong pre-echoes in a multi-path communication channel
08/18/2005US20050180557 Echo canceller for removing speaker to microphone feedback on a personal computer
08/18/2005DE10254273B4 Verfahren zur Steuerung einer Türsprechanlage Method for controlling a door intercom
08/17/2005EP1564980A1 Acoustic echo canceller
08/17/2005CN1656366A Method in a digital network system for controlling the transmission of terminal equipment
08/17/2005CN1655646A Sound pickup apparatus and method of the same
08/16/2005US6931123 Echo cancellation
08/16/2005US6931121 Dual personality analog port
08/16/2005US6931120 Telephone-computer interface
08/11/2005WO2005074236A1 Communication device keypad illumination
08/11/2005WO2005074156A1 Echo canceller with interference-level controlled step size
08/11/2005WO2005072043A2 Interface device between mobile phone line and fixed telephone receiver connected or not to a fixed telephone line and process of functioning.
08/11/2005US20050175189 Dual microphone communication device for teleconference
08/11/2005US20050175172 System and method for providing a local time of far end on telephone systems
08/11/2005US20050175129 Echo canceller with model mismatch compensation
08/10/2005CN1214540C Method for realizing echo counteraction
08/09/2005US6928160 Estimating bulk delay in a telephone system
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