| Patents for H04M 19 - Current supply arrangements for telephone systems (7,475) |
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| 02/27/2003 | WO2003017624A2 Mobile electronic communication device with lights to indicate received messages |
| 02/27/2003 | WO2002062040A3 Telecommunication appliance comprising an acoustic signal generator and a tactile signal generator |
| 02/27/2003 | WO2002045388A3 Communication terminal with user-configurable memory |
| 02/27/2003 | US20030040295 Power control apparatus of public telecommunication terminal |
| 02/27/2003 | US20030040286 Signaling cellular phone carrier |
| 02/27/2003 | US20030040202 Interconnect chassis and module |
| 02/27/2003 | US20030039352 Receiver, method, program and carrier signal for adapting the sound volume of an acoustic signal of an incoming call |
| 02/27/2003 | DE20215157U1 Automatic charger with payment controlled timer for mobile telephone etc. |
| 02/26/2003 | EP1286563A1 Automatically disabling phone ringing |
| 02/26/2003 | EP1285524A2 Method for indicating a call reaching a communication terminal |
| 02/26/2003 | EP1285523A2 Electroacoustic apparatus having ringing signal generation means capable of producing a subjective bass perception |
| 02/26/2003 | EP1177613B1 Telephone-line based power supply system |
| 02/26/2003 | EP0709010B1 Power coupler for coupling power from a transmission line to a node thereon |
| 02/26/2003 | CN1399773A Sound source circuit and telephone terminal comprising thereof |
| 02/25/2003 | US6525256 Method of compressing a midi file |
| 02/20/2003 | WO2003015429A1 Method for the transmission of data |
| 02/20/2003 | WO2003015380A1 A system and method for customising call alerts |
| 02/20/2003 | US20030037124 Portal server and information supply method for supplying music content |
| 02/20/2003 | US20030036412 Electro-luminescent device for a mobile phone |
| 02/20/2003 | US20030036363 Equipment shelf-resident network interface unit by-pass circuit |
| 02/20/2003 | US20030035534 Low noise line powered daa with differential feedback |
| 02/20/2003 | US20030034878 Mobile electronic communication device with lights to indicate received messages |
| 02/19/2003 | CN1398138A Indication setting method of temporaryly forbidding mobile communication terminal |
| 02/18/2003 | US6522745 Digital access arrangement circuitry and method having a synthesized ringer impedance for connecting to phone lines |
| 02/16/2003 | CA2355398A1 A system and method for reducing power dissipation in line driver circuits |
| 02/13/2003 | US20030032457 Apparatus and method for automatically disabling cell phone ringing |
| 02/12/2003 | CN1396786A Self-modification bell melody |
| 02/12/2003 | CN1396757A System and method for providing analog telephone service |
| 02/12/2003 | CN1396751A Mobile terminal equipment and method for contralling calling notice |
| 02/11/2003 | US6519339 Method of regulating power transfer across an isolation barrier |
| 02/11/2003 | US6519326 Telephone voice-ringing using a transmitted voice announcement |
| 02/11/2003 | US6518869 Power supply transformer for telephone |
| 02/06/2003 | US20030027605 Mobile wireless terminal device capable of informing with varied contents for ringing |
| 02/06/2003 | US20030027604 Mobile communication terminal device capable of changing output sound and output sound control method |
| 02/06/2003 | US20030026418 Dynamically adjustable digital gyrator having extendable feedback for stable DC load line |
| 02/06/2003 | US20030025592 Method for disabling alarm temporarily in mobile communication terminal |
| 02/05/2003 | EP1281291A1 Network termination unit for a user terminal and method for power-dissipation optimised generation of a call voltage in a user terminal |
| 02/05/2003 | CN1395786A 便携电话机 Portable telephone |
| 02/05/2003 | CN1395723A 便携电话机 Portable telephone |
| 02/05/2003 | CN1395211A Entry service device for supplying musical content and information supplying method |
| 02/04/2003 | US6516054 Method for adjusting current levels, which have been falsified by offset-current levels, in a subscriber line circuit |
| 02/04/2003 | US6516024 Digital access arrangement circuitry and method for connecting to phone lines having a DC holding circuit with low distortion and current limiting |
| 01/30/2003 | WO2003009632A1 Wireless telephone and wireless telephone system |
| 01/30/2003 | WO2003009487A1 A device and a method of recognition ring signal for mobile phone in vibration mode |
| 01/29/2003 | EP1280367A2 Transmission of electronic calendar data between mobile stations |
| 01/29/2003 | CN1100460C No pluging wire telephone equipment capable of recharging in any position |
| 01/23/2003 | WO2003007625A1 Electric power and signal distribution system |
| 01/23/2003 | WO2003007474A2 Adaptive audible alert volume control |
| 01/23/2003 | WO2002091727A3 Method for encoding and decoding pieces of music |
| 01/23/2003 | WO2001082584A3 System and method for providing power over a home phone line network |
| 01/23/2003 | US20030017860 Apparatus and method for generating distinctive ringing according to caller |
| 01/23/2003 | US20030017859 Smart ringer |
| 01/23/2003 | US20030016816 Apparatus for indicating a user status |
| 01/23/2003 | US20030016813 Personal ring tone message indicator |
| 01/22/2003 | EP1278361A1 Generating a distinctive ring tone for a calling party |
| 01/22/2003 | EP1278360A1 Adaptation of the volume of an incoming ringing acoustic signal to the environment |
| 01/22/2003 | EP0882351B1 Distinctive ringing and distinctive call-waiting tones in an isdn |
| 01/22/2003 | CN1392744A Tone generator device of shared parameter between channels |
| 01/21/2003 | US6510204 Method and apparatus for providing an all digital loop with power-optimised mode |
| 01/16/2003 | WO2003005695A1 Central office interface techniques for digital subscriber lines |
| 01/16/2003 | WO2003005685A1 Method and system for audibly announcing an indication of an identity of a sender of a communication |
| 01/16/2003 | US20030013496 Method and apparatus for adjusting level of alert sound in portable telephone |
| 01/16/2003 | US20030013495 Adaptive audible alert volume control |
| 01/15/2003 | EP1276338A2 Wireless transmission of electronic business cards |
| 01/15/2003 | EP1276307A1 Self modifying ringer melodies |
| 01/14/2003 | US6507654 Line interface battery feed arrangements with PTC resistors |
| 01/14/2003 | US6507470 Method and arrangement for shortening the recovery time of a line driver |
| 01/09/2003 | WO2003003701A1 Subscriber identity module and terminal therefor |
| 01/09/2003 | US20030008687 Mobile terminal device to controlling incoming call notifying method |
| 01/09/2003 | US20030008644 Preventing activation of audible incoming call indicators based on geographical area |
| 01/09/2003 | US20030007614 Power transfer apparatus for use by network devices including telephone equipment |
| 01/08/2003 | EP1274246A2 Portal server and information supply method for supplying music content |
| 01/08/2003 | EP1274223A1 Built-in solar cells for mobile phone terminals |
| 01/07/2003 | US6504874 Arrangement for digital transmission of information across wires |
| 01/07/2003 | US6504864 Digital access arrangement circuitry and method for connecting to phone lines having a second order DC holding circuit |
| 01/03/2003 | WO2003001786A1 An arrangement for overcurrent protection of line drivers |
| 01/02/2003 | US20030003968 Portable telephone |
| 01/02/2003 | US20030003966 Sounding alert for recent calls |
| 01/02/2003 | US20030002571 Direct digital access arrangement circuitry and method for connecting to phone lines |
| 01/02/2003 | EP1271913A1 Triggering a mobile phone feature upon receipt of one or more inputs relating to phone numbers grouped according to a shared characteristic |
| 01/02/2003 | EP1271912A1 Distinctive ringing tones transmitted from a network-based store |
| 01/02/2003 | EP1271337A2 a terminal for accessomg the internet over a wireless communication network |
| 01/02/2003 | EP1271336A2 a mobile communication network terminal with a menu-type interface |
| 01/02/2003 | EP0740881B1 A method and an arrangement for generating a ringing signal |
| 01/01/2003 | CN1097938C Ringing cut-out circuit for simply cut-out detecting circuit with high response speed |
| 12/31/2002 | US6501967 Defining of a telephone's ringing tone |
| 12/31/2002 | US6501019 Isolation apparatus for electronic equipment |
| 12/26/2002 | US20020196930 Replacing telecommunications carrier equipment |
| 12/26/2002 | US20020196774 Post extender for voice fallback in a subscriber line |
| 12/25/2002 | CN1097411C Method for remote test of wireless subscriber connection and terminal in radio system |
| 12/24/2002 | US6498966 Method and system for distribution of stand-by electric power |
| 12/24/2002 | US6498849 Arrangement in a subscriber line interface circuit |
| 12/24/2002 | US6498825 Digital access arrangement circuitry and method for connecting to phone lines having a DC holding circuit with programmable current limiting |
| 12/19/2002 | WO2002028111A3 Improved technique for remote power feeding of telephone subscribers |
| 12/19/2002 | US20020193150 System and method for providing location-based responses |
| 12/19/2002 | US20020191780 Software controlled ring voltage generator |
| 12/19/2002 | US20020189430 Tone generator apparatus sharing parameters among channels |
| 12/18/2002 | EP1267560A2 Tone generator apparatus sharing parameters among channels |
| 12/18/2002 | EP1267323A1 Portable telephone |
| 12/18/2002 | CN1386357A Phone silene system |