| Patents for H04M 9 - Arrangements for interconnection not involving centralised switching (8,105) |
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| 04/18/2006 | US7031459 Echo canceller employing dual-H architecture having improved non-linear echo path detection |
| 04/18/2006 | US7031458 Method and apparatus for isolation in a data access arrangement using analog encoded pulse signaling |
| 04/18/2006 | US7031455 Use of handset microphone to enhance speakerphone loudspeaker performance |
| 04/18/2006 | US7031269 Acoustic echo canceller |
| 04/13/2006 | US20060079198 Apparatus, method and system for range extension of a data communication signal on a high voltage cable |
| 04/13/2006 | US20060078102 Door answering system |
| 04/13/2006 | DE10038260B4 Elektronische Anlage für Eingänge Electronic system for inputs |
| 04/12/2006 | EP1646216A1 Speech communication system, server used for the same, and reception relay device |
| 04/12/2006 | CN1758694A Device for generation confortable noise |
| 04/12/2006 | CN1251554C Telephone communication system over single telephone line |
| 04/12/2006 | CN1251430C Message equipment |
| 04/11/2006 | US7027604 Circuit to prevent acoustic feedback for a cellular speakerphone |
| 04/11/2006 | US7027595 Telecommunications apparatus and plug-in unit for same |
| 04/11/2006 | US7027594 System and method for cooling of network interface device |
| 04/11/2006 | US7027591 Integrated noise cancellation and residual echo suppression |
| 04/11/2006 | US7027590 Dynamic allocation of overhead voltage to support simultaneous transmission of signals on a telecommunication line |
| 04/11/2006 | US7027589 Single-ended loop test circuitry in a central office DSL modem |
| 04/11/2006 | US7027562 System and method to reduce echoes in voice communications |
| 04/11/2006 | CA2223827C Acoustic echo elimination in a digital mobile communications system |
| 04/06/2006 | US20060073805 Dynamic FD coexistence method for PLC systems |
| 04/06/2006 | US20060072766 Reverberation removal |
| 04/06/2006 | US20060072741 Method and system for providing DC power on local telephone lines |
| 04/06/2006 | US20060072570 System for and method of exchanging server data in packet unit |
| 04/06/2006 | US20060072484 Method and apparatus for suppressing echo cancelling in a packet switched network |
| 04/05/2006 | CN1756281A Official business interconnecting device for transmission equipment |
| 04/05/2006 | CN1756268A Telephone terminal, telephone system using telephone terminal and control method of telephone terminal |
| 04/04/2006 | US7023986 Echo canceller in a communication system at a terminal |
| 04/04/2006 | US7023983 Versatile circuit for interfacing with audio headsets |
| 04/04/2006 | US7023975 Privacy mode system and method for home network telephone |
| 04/04/2006 | US7023812 System and method for improving modem transmission through private branch exchanges, central offices, and other systems |
| 03/30/2006 | WO2005067426A3 Modifications to telephones in combination of aesthetic and extra-functional values |
| 03/30/2006 | US20060067524 Ergonomic earpiece |
| 03/30/2006 | US20060067523 Apparatus for decomposing an automatic cross connect system at a remote wiring hub |
| 03/30/2006 | US20060067521 Telephone line powered lamp |
| 03/30/2006 | US20060067520 Telephone line interface, side-tone attenuation circuit and method |
| 03/30/2006 | US20060067519 Non-linear acoustic echo canceller |
| 03/30/2006 | US20060067518 Communication terminal with bandwidth widening expansion and echo compensation |
| 03/30/2006 | US20060067517 Multiple path hybrid for subscriber line services |
| 03/30/2006 | US20060067516 Dual transformer hybrid system and method |
| 03/30/2006 | US20060067513 Multi-function telephone adapter |
| 03/30/2006 | US20060067512 Speakerphone having improved outbound audio quality |
| 03/30/2006 | US20060067511 System for sharing human perceptual signals between electronic devices |
| 03/30/2006 | US20060067488 Method and apparatus for spectral containment over telephone service lines |
| 03/30/2006 | US20060067255 Telephone terminal, telephone system using telephone terminal and control method of telephone terminal |
| 03/30/2006 | CA2519827A1 Telephone terminal, telephone system using telephone terminal and control method of telephone terminal |
| 03/29/2006 | EP1639799A2 Statistical adaptive-filter controller |
| 03/29/2006 | EP1639791A2 A method for enhancing the acoustic echo cancellation system using residual echo filter |
| 03/29/2006 | CN1754377A Device and method for detecting presence of service on telephone line |
| 03/28/2006 | US7020279 Method and system for filtering a signal and for providing echo cancellation |
| 03/28/2006 | US7020278 Echo canceller having improved non-linear processor |
| 03/28/2006 | US7020276 Frequency sensitive inductance device in POTS splitter design |
| 03/28/2006 | US7020275 Method and apparatus for spectral containment over telephone service lines |
| 03/28/2006 | US7020274 Universal apparatus and method for interfacing signals with telephony networks |
| 03/28/2006 | US7020246 Time domain reflected signal measurement using statistical signal processing |
| 03/23/2006 | WO2006031746A2 An adaptor connecting telephone signals to a telephone to adapt the telephone for use by a child |
| 03/23/2006 | WO2005070146A8 Headphone receiver apparatus for use with low power transmitters |
| 03/23/2006 | US20060062380 Method and apparatus for canceling acoustic echo in a mobile terminal |
| 03/23/2006 | US20060062379 Methods and apparatuses for detecting and reducing non-linear echo in a multi-carrier communication system |
| 03/22/2006 | EP1636978A1 System for the digital processing of an acoustic or electrical signal, and telephone set provided with such a processing system |
| 03/22/2006 | CN1751326A Electronic device with cover including a radio frequency identification module |
| 03/22/2006 | CN1750573A Speech signal processing with combined noise reduction and echo compensation |
| 03/22/2006 | CN1750124A Bandwidth extension of band limited audio signals |
| 03/22/2006 | CN1247035C Turbo code interswitch for G3 mobile communication standard protocol carried by programmable gate matrix |
| 03/22/2006 | CN1246975C Method for estimating long delay time using coefficient of efficiency of circuit echo canceller |
| 03/21/2006 | US7016503 Adaptive equalizer for variable length sound tubes utilizing an acoustic pressure response measurement |
| 03/21/2006 | US7016490 Circuit board capacitor structure for forming a high voltage isolation barrier |
| 03/21/2006 | US7016489 System and method for performing echo cancellation for non-linearities |
| 03/21/2006 | US7016488 Method and apparatus for non-linear processing of an audio signal |
| 03/21/2006 | US7016487 Digital echo cancellation device |
| 03/21/2006 | US7015946 Television door intercom apparatus |
| 03/21/2006 | US7015943 Premises entry security system |
| 03/16/2006 | WO2006029120A2 Handset cradle |
| 03/16/2006 | US20060056617 Electronic apparatus, and cover and structural body thereof |
| 03/16/2006 | US20060056616 Hospital telephone and device controller |
| 03/15/2006 | EP1634435A1 Echo processing method and device |
| 03/15/2006 | CN1245705C Speaker verifying apparatus |
| 03/14/2006 | US7013007 Computer telephony power supply method and apparatus |
| 03/14/2006 | US7013000 MTA intercom feature |
| 03/09/2006 | WO2006026221A2 Speakerphone having improved outbound audio quality |
| 03/09/2006 | WO2005089318A3 Termination block |
| 03/09/2006 | WO2004110031A3 Current sense circuit in a line powered network element |
| 03/09/2006 | US20060052143 Piezoelectric user interface |
| 03/09/2006 | US20060050867 Electronic apparatus and its openning closing mechanism |
| 03/09/2006 | US20060050866 Handset cradle |
| 03/09/2006 | DE102004040696A1 Terminal for secure voice transmission device e.g. for buildings, elevators public squares etc, uses adjustable amplifying device |
| 03/08/2006 | EP1633121A1 Speech signal processing with combined adaptive noise reduction and adaptive echo compensation |
| 03/08/2006 | EP1632082A2 Loudspeaker-microphone system with echo cancellation system and method for echo cancellation |
| 03/08/2006 | CN1745565A Speech communication system, server used for the same, and reception relay device |
| 03/08/2006 | CN1745562A Fault characterization using information indicative of echo |
| 03/07/2006 | US7010803 Method and apparatus for delivering secured telephony service in a hybrid coaxial cable network |
| 03/07/2006 | US7010119 Echo canceller with reduced requirement for processing power |
| 03/07/2006 | US7010118 Noise compensation methods and systems for increasing the clarity of voice communications |
| 03/07/2006 | US7009945 Dual-mode analog/digital adaptive echo cancellation in communication systems with asymmetric spectrum |
| 03/03/2006 | CA2518134A1 Speech signal processing with combined noise reduction and echo compensation |
| 03/02/2006 | US20060045261 Hinge assembly for foldable electronic device |
| 03/02/2006 | US20060045260 Opening mechanism and electronic device using the same |
| 03/02/2006 | US20060045259 Data entry pad and an electronic apparatus incorporating it |
| 03/01/2006 | EP1629659A2 Current sense circuit in a line powered network element |
| 03/01/2006 | EP1629658A2 Line powered network element |
| 03/01/2006 | EP1629354A2 Function for controlling line powered network element |