| Patents for H04M 9 - Arrangements for interconnection not involving centralised switching (8,105) |
|---|
| 03/06/2008 | US20080057902 Distribution of customized ringtones for mobile devices |
| 03/06/2008 | US20080056485 Portable terminal |
| 03/06/2008 | US20080056484 Electronic circuit to reduce noise in digital subscriber loop and communications over unsheilded twisted pair metallic conductors |
| 03/06/2008 | US20080056483 Talk deciding system |
| 03/06/2008 | US20080056398 Systems and method for orthogonal frequency divisional multiplexing |
| 03/06/2008 | US20080056119 Systems and method for orthogonal frequency divisional multiplexing |
| 03/05/2008 | EP1895752A1 Talk deciding system |
| 03/05/2008 | CN101136973A Talk deciding system |
| 03/04/2008 | US7340052 Multifunctional electronic device |
| 03/04/2008 | US7340051 Power ramp-up in a line-powered network element system |
| 03/04/2008 | US7339924 Method and apparatus for providing ringing timeout disconnect supervision in remote telephone extensions using voice over packet-data-network systems (VOPS) |
| 03/04/2008 | US7339605 Conference link between a speakerphone and a video conference unit |
| 02/28/2008 | WO2007001931A3 Single-transformer digital isolation barrier |
| 02/28/2008 | US20080049860 Systems and method for orthogonal frequency divisional multiplexing |
| 02/28/2008 | US20080049856 Systems and method for orthogonal frequency divisional multiplexing |
| 02/28/2008 | US20080049604 Systems and method for orthogonal frequency divisional multiplexing |
| 02/28/2008 | US20080049603 System and method for multiframe alignment in a multipoint-to-point orthogonal frequency division multiplexing system |
| 02/28/2008 | US20080049599 Tone hopping in a multipoint-to-point orthogonal frequency division multiplexing communication system |
| 02/28/2008 | US20080048854 Multifunctional, intelligent power and communication device |
| 02/27/2008 | CN101133633A Audio system and method for acoustic echo cancellation |
| 02/26/2008 | US7336944 Method and apparatus for legal intercept monitoring of a cellular telephone modem (CTM) device |
| 02/26/2008 | US7336782 Wiring structure for folding portable device |
| 02/26/2008 | US7336781 Latching assembly for a removable cover of a portable electronic device |
| 02/26/2008 | US7336780 Differential signaling transmission circuit |
| 02/21/2008 | US20080044008 Network telephone expansion seat |
| 02/21/2008 | US20080044006 Remote control system for electric device |
| 02/21/2008 | US20080044005 Projection headset |
| 02/21/2008 | US20080044004 Low-power on-chip headset switch detection |
| 02/21/2008 | US20080044003 In-ear type and ear-plug type earphone with adjustable volume of rear chamber between speaker and housing |
| 02/21/2008 | US20080044002 Wireless headset with extendable microphone |
| 02/21/2008 | US20080044001 Handset and base unit with semi-translucent finish |
| 02/21/2008 | US20080043998 Line interface for telephone |
| 02/21/2008 | US20080043997 Noise threshold matrix for controlling audio processing |
| 02/21/2008 | US20080043996 Systems And Arrangements For Controlling Audio Levels Based On User Selectable Parameters |
| 02/21/2008 | US20080043995 Histogram for controlling a telephone |
| 02/21/2008 | US20080043994 Telephone having public-address system |
| 02/21/2008 | US20080043926 Method and system for rehoming a digital subscriber line access multiplexer |
| 02/21/2008 | US20080043704 System and method for orderwire modulation in a multipoint-to-point orthogonal frequency division multiplexing system |
| 02/21/2008 | US20080043646 Telephone communication system over a single telephone line |
| 02/21/2008 | US20080043612 Coarse and fine synchronization adjustments |
| 02/21/2008 | US20080043611 Method and system for dynamic bandwidth allocation |
| 02/21/2008 | DE19918893B4 Kommunikationssystem, insbesondere Hausanlage Communication system, particularly House Park |
| 02/19/2008 | US7333607 Replaceable panel device for a handset |
| 02/19/2008 | US7333606 Splitter architecture for a telecommunications system |
| 02/19/2008 | US7333605 Acoustic echo cancellation with adaptive step size and stability control |
| 02/19/2008 | US7333604 Adaptive notification of an incoming call in a mobile phone |
| 02/19/2008 | US7333603 System and method for adapting an analog echo canceller in a transceiver front end |
| 02/19/2008 | US7333579 Robust symbol timing recovery circuit for telephone line modem |
| 02/19/2008 | US7333476 System and method for operating a packet voice far-end echo cancellation system |
| 02/19/2008 | US7333447 Packet voice system with far-end echo cancellation |
| 02/14/2008 | US20080040763 System and method for contention based tones in a multipoint-to-point orthogonal frequency division multiplexing system |
| 02/14/2008 | US20080037768 Microphone module and method for fabricating the same |
| 02/14/2008 | US20080037766 Communication Terminal Device with Echo Canceller and its Echo Canceling Method |
| 02/14/2008 | US20080037663 Timing and symbol alignment in multipoint-to-point communication using orthogonal frequency division multiplexing |
| 02/14/2008 | US20080037415 System and method for ranging in a multipoint-to-point orthogonal frequency division multiplexing system |
| 02/14/2008 | US20080037414 System and method for multiframe alignment in a multipoint-to-point orthogonal frequency division multiplexing system |
| 02/14/2008 | US20080037412 System and method for round trip delay adjustment in a multipoint-to-point orthogonal frequency division multiplexing system |
| 02/13/2008 | EP1673960A4 Communication headset with signal processing capability |
| 02/13/2008 | CN100369113C Method for adaptively improving speech recognition rate by means of gain |
| 02/12/2008 | US7330738 Apparatus and method for canceling residual echo in a mobile terminal of a mobile communication system |
| 02/12/2008 | US7330721 Method and system for supporting non-intrusive and effective voice communication among mobile users |
| 02/12/2008 | US7330548 Mobile terminal and sliding module and a method thereof |
| 02/12/2008 | US7330547 Dual keypad phone |
| 02/12/2008 | US7330546 Multimedia patching box |
| 02/12/2008 | US7330545 Dual transformer hybrid system and method |
| 02/12/2008 | US7330544 Digital isolation barrier as interface bus for modems |
| 02/07/2008 | WO2008016586A2 Histogram for controlling a telephone |
| 02/07/2008 | US20080031442 Delayed adaptation structure for improved double-talk immunity in echo cancellation devices |
| 02/07/2008 | US20080031441 Method and apparatus for filtering signals |
| 02/07/2008 | US20080031373 System and method for contention based tones in a multipoint-to-point orthogonal frequency division multiplexing system |
| 02/07/2008 | US20080031127 System and method for orderwire modulation in a multipoint-to-point orthogonal frequency division multiplexing system |
| 02/05/2008 | US7327841 SAR optimized receptacle for mobile devices |
| 02/05/2008 | US7327840 Loudspeaker telephone equalization method and equalizer for loudspeaker telephone |
| 01/31/2008 | WO2008012697A1 Echo cancellation and noise reduction adaptation during ringing signal playback |
| 01/31/2008 | US20080025284 System for multi-frame alignment |
| 01/31/2008 | US20080025202 Scanning by remotes in multipoint-to-point communication using orthogonal frequency division multiplexing |
| 01/31/2008 | US20080025201 System and method for ranging and round trip delay adjustment in a multipoint-to-point orthogonal frequency division multiplexing system |
| 01/31/2008 | DE102006033131B3 Domestic communication system, has door station with door bell, which is located at respective home station, where home stations have confirmation key for confirming established internal call diversion |
| 01/30/2008 | CN101115216A Interphone structure having night non-disturbance function |
| 01/29/2008 | US7324643 Invisible double function hinge construction |
| 01/29/2008 | US7324631 Method and apparatus for delivering secured telephony service in a hybrid coaxial cable network |
| 01/29/2008 | US7324466 Echo canceling system and echo canceling method |
| 01/24/2008 | WO2008011276A2 Microphone module and method for fabricating the same |
| 01/24/2008 | WO2007062287A3 Method and apparatus for double-talk detection in a hands-free communication system |
| 01/24/2008 | DE112005003507T5 Universalfreisprecheinrichtung für Mobiltelefon Universal Hands-free cell phone |
| 01/24/2008 | DE102006033295A1 Dezentral organisiertes, IP-basiertes Kommunikationssystem mit analogen WL-Sprechstellen Decentralized, IP-based communication system with analog WL-stations |
| 01/23/2008 | EP1881687A2 Decentrally organised IP-based communications system with analog WL-intercom station |
| 01/23/2008 | EP1683328A4 Two-way communications device having a single transducer |
| 01/23/2008 | CN101110611A Method and apparatus for echo wave filtering in EOC system |
| 01/23/2008 | CN101110607A Frequency hopping communication method for digital non-center communication system |
| 01/23/2008 | CN100364307C Method for transmitting data between networks |
| 01/22/2008 | USRE40020 Impedance blocking filter circuit |
| 01/17/2008 | US20080013714 Earset |
| 01/17/2008 | US20080013695 System and method for verifying central office wiring associated with line sharing |
| 01/17/2008 | US20080013529 Telephone communication system over a single telephone line |
| 01/15/2008 | US7319749 Hinge with orthogonal pivot axes |
| 01/15/2008 | US7319748 Device and method for suppressing echo in telephones |
| 01/15/2008 | CA2307657C Echo canceller employing dual-h architecture having variable adaptive gain settings |
| 01/10/2008 | WO2008003271A1 Circuit arrangement, method for generating an audible tone, and communication terminal |
| 01/10/2008 | WO2007109805A3 Method and apparatus for providing interactive media during communication in channel-based media telecommunication protocols |