| Patents for H04M 19 - Current supply arrangements for telephone systems (7,475) |
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| 09/10/2002 | US6449348 Power transfer apparatus for use by network devices including telephone equipment |
| 09/10/2002 | US6449136 Active current limiter |
| 09/06/2002 | WO2002037804A3 Communication device with data interface in the charging base station |
| 09/04/2002 | EP1237346A1 Method and device for signalling a call or a message to its recipient |
| 09/04/2002 | CN2509796Y Local telephone radio base station uninterrupted power source |
| 09/04/2002 | CN1367603A Grounding key and fault detector and its detection method |
| 09/04/2002 | CN1090419C Bootstrap power supply |
| 09/04/2002 | CN1090418C Clear channel selection system for cordless telephone |
| 08/29/2002 | WO2002067565A1 Data communications server supplying ringing tones, and associated method of allocating ringing tones |
| 08/29/2002 | WO2002067404A1 Wireless communication device and method of switching power supply |
| 08/29/2002 | US20020119788 Context-aware and location-aware cellular phones and methods |
| 08/29/2002 | US20020118823 Telephone power source circuit |
| 08/29/2002 | US20020118820 High density digital subscriber line splitter |
| 08/29/2002 | US20020118819 Method and apparatus for detecting line card threshold |
| 08/29/2002 | US20020118818 Method and apparatus for DC feed |
| 08/27/2002 | US6442271 Digital isolation system with low power mode |
| 08/27/2002 | US6442213 Digital isolation system with hybrid circuit in ADC calibration loop |
| 08/27/2002 | US6442017 Battery-power distribution panel for network equipment |
| 08/22/2002 | US20020115480 Adapter set |
| 08/22/2002 | US20020115456 Method and system for coding ring tones for cellular telephones |
| 08/22/2002 | US20020114439 User transparent internet telephony device and method |
| 08/21/2002 | CN1365228A User special wire interface circuit and its operation method |
| 08/21/2002 | CN1089506C 驱动级 Driver stage |
| 08/21/2002 | CN1089498C Voltage pole reversal circuitry |
| 08/20/2002 | US6438392 Absence reception information device and absence reception information method for folding portable cellular phone |
| 08/15/2002 | US20020110236 Switched mode current feed methods for telephony subscriber loops |
| 08/14/2002 | CN1364026A Device for providing distance power feed in long distance communication network |
| 08/13/2002 | US6434236 PC server telecommunications power system |
| 08/13/2002 | US6434225 Communication support system in which a ringing sound control processing is performed in response to a call from a telephone network |
| 08/13/2002 | US6434220 Long-distance transmission system and device |
| 08/08/2002 | WO2002062048A1 Device for signalling the receipt of a telephone call on a piece of terminal equipment |
| 08/08/2002 | WO2002062040A2 Telecommunication appliance comprising an acoustic signal generator and a tactile signal generator |
| 08/08/2002 | US20020106076 Line powered loop extender with communications, control, and diagnostics |
| 08/08/2002 | US20020106074 Method, apparatus and program for providing user-selected alerting signals in telecommunications devices |
| 08/08/2002 | US20020105399 Breaker apparatus and breaker unit |
| 08/08/2002 | DE10104538A1 Telekommunikationsgerät mit einem akustischen und einem taktilen Signalgeber Telecommunications device with an acoustic and a tactile signal generator |
| 08/07/2002 | EP1229745A2 Providing PSTN telephone service when the Digital Subscriber Line is interrupted due to power failure |
| 08/07/2002 | CN1363175A Method of transferring melodic information to terminal |
| 08/01/2002 | WO2002059769A1 Method and apparatus to reduce processing requirements for the playback of complex audio sequences |
| 08/01/2002 | US20020103552 Method and apparatus to reduce processing requirements for the playback of complex audio sequences |
| 08/01/2002 | US20020102960 Sound generating device and method for a mobile terminal of a wireless telecommunication system |
| 08/01/2002 | US20020101980 Protection of subscriber line interface circuits (SLICS) without degradation in longitudinal balance |
| 08/01/2002 | US20020101818 System and method for providing analog telephone service when voice over IP over SDSL service is interrupted due to power failure |
| 08/01/2002 | US20020101817 System and method for providing analog telephone service when voice over IP over SDSL service is interrupted due to power failure |
| 07/31/2002 | EP1192786A4 Adaptable line driver interface for digital telephone systems |
| 07/31/2002 | CN1361616A Intelligent portable communication equipment according to user's time schedule and its operating method |
| 07/30/2002 | US6427183 Circuit for the demand-conforming switching on and off of a load |
| 07/30/2002 | US6427011 Modem data access arrangement without diode bridge |
| 07/30/2002 | CA2220077C Communication system of portable communication terminal, incoming call control system of portable communication terminal and incoming call notifying device of portable communication terminal |
| 07/25/2002 | WO2002058351A1 User transparent internet telephony device and method |
| 07/25/2002 | WO2002058263A1 A wireless device with vibrational communication capabilities |
| 07/25/2002 | WO2002058261A1 A wireless mobile phone having encoded data entry facilities |
| 07/25/2002 | US20020098876 Visualization supplemented wireless mobile telephony |
| 07/23/2002 | US6424251 Personal electronic device notification system |
| 07/18/2002 | US20020094848 Method and system for providing power to a communications device |
| 07/18/2002 | US20020094807 Signal routing for reduced power consumption in a conferencing system |
| 07/18/2002 | US20020094069 Call-arrival signaling method |
| 07/18/2002 | DE10101172A1 Storing sound sequence in telecommunications device involves transferring sound sequence into externally programmable sound generator via device and back into sound memory of a device |
| 07/17/2002 | EP1223728A1 Telephone with controlled suppression of the ringing signal |
| 07/17/2002 | EP1222803A1 An arrangement in a subscriber line interface circuit |
| 07/17/2002 | EP1222802A1 Method and apparatus for dc feed control |
| 07/11/2002 | WO2002054715A2 Programming of a ringing tone in a telephone apparatus |
| 07/11/2002 | WO2002054710A2 Method and system for coding ring tones for cellular telephones |
| 07/11/2002 | WO2002054363A1 Automatic switching between ring and vibrations call alert for mobile phones |
| 07/11/2002 | US20020091951 Device for remote power feeding a terninal in a telecommunication network, and a concentrator and a repreater including the device |
| 07/11/2002 | DE10061844A1 Telephone call recognition circuit for mobile telephone has connections to contact metallic surfaces of card reader for evaluation of card |
| 07/10/2002 | EP1221783A1 Remote feeding device for a terminal in a telecommunications network , concentrator and repeater with such a device |
| 07/10/2002 | EP1221254A1 Method for signalling calls and communications terminal |
| 07/09/2002 | US6418330 Device and method for generating various ring tones in radio terminal |
| 07/09/2002 | US6418323 Wireless mobile phone with Morse code and related capabilities |
| 07/09/2002 | US6418309 Apparatus and method for configuring settings of a portable intelligent communications device during a meeting |
| 07/04/2002 | WO2002052687A1 Charger and/or power device for wireless electrical devices or batteries thereof |
| 07/04/2002 | US20020087656 Downloadable multimedia content and method for accounting |
| 07/04/2002 | US20020086714 In-coming call indicating means for mobile phone |
| 07/04/2002 | US20020085706 Method and apparatus for ringing |
| 07/03/2002 | EP1220521A2 Portable communications device and operation method for the same according to user's schedule |
| 07/03/2002 | EP1219105A2 Method for managing the power which can be transmitted from a communications network to a network termination device via a line |
| 07/03/2002 | CN1087122C Subscriber's line interface circuit |
| 06/27/2002 | US20020083028 Intelligent portable communications device and operation method for the same according to user's schedule |
| 06/27/2002 | US20020082055 Method and apparatus for alerting an operator of an incoming cellular or portable phone call |
| 06/27/2002 | US20020080025 Alarm monitoring systems and associated methods |
| 06/26/2002 | EP1217792A1 Context-aware and location-aware cellular phones and methods |
| 06/26/2002 | EP1216572A1 An arrangement and a method relating to power supply in a communications network |
| 06/25/2002 | US6411198 Portable terminal device |
| 06/25/2002 | US6411148 Telemetering apparatus |
| 06/20/2002 | WO2002048997A2 Electroacoustic apparatus having ringing signal generation means capable of producing a subjective bass perception |
| 06/20/2002 | US20020076038 Telephone line power supply |
| 06/20/2002 | US20020076036 Device for connecting a subscriber line to a high frequency link and to a low frequency link |
| 06/20/2002 | US20020076035 Passive DSL splitting |
| 06/20/2002 | US20020076033 Intelligent telephone ringer control and method |
| 06/20/2002 | US20020076020 Communication support system in which a ringing sound control processing is performed in response to a call from a telephone network |
| 06/20/2002 | DE10059524A1 Kommunikationsendgerät mit benutzerseitig konfigurierbarem Speicher Communication terminal with user-configurable memory |
| 06/19/2002 | EP1214838A1 Method and arrangement for shortening the recovery time of a line driver |
| 06/19/2002 | CN1354595A Terminal suited to be power supplied locally and for receiving remote feeding electricity by means of chain link |
| 06/19/2002 | CN1354585A System and method for playing music with light or vibration |
| 06/19/2002 | CN1086539C Method of and telephone with call-reminding and auto-dialing |
| 06/18/2002 | US6408194 Method of detecting operating states of an electrical apparatus and electrical apparatus for detecting apparatus-specific operating states |
| 06/18/2002 | US6408187 Method and apparatus for determining the behavior of a communications device based upon environmental conditions |
| 06/18/2002 | US6408034 Framed delta sigma data with unlikely delta sigma data patterns |
| 06/18/2002 | US6408008 Circuit for attenuation of echos caused by line variations and an interfacing system for capacitively coupling a plurality of sources to a two-wire communication line |