| Patents for H04M 19 - Current supply arrangements for telephone systems (7,475) |
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| 09/13/2001 | US20010021662 Transceiver |
| 09/13/2001 | DE4222401C2 Schaltungsanordnung zur Verarbeitung von Telefon-Tonrufsignalen Circuitry for processing telephone-Tonrufsignalen |
| 09/13/2001 | DE10005199A1 Charger with insert for mobile radio telephone displays texts and/or graphics and has interfaces which are connected with data-exchange interfaces and charger-interfaces of mobile telephone |
| 09/12/2001 | CN1313003A A telecommunication device with acoustically programmable ring tone means and a method for the programming thereof |
| 09/11/2001 | US6289070 Digital isolation system with ADC offset calibration including coarse offset |
| 09/07/2001 | WO2001015410A3 Telephone terminal apparatus and communication method |
| 09/05/2001 | EP1130791A2 Method for interrupting the power saving state of a communications unit in a radio communications system |
| 09/04/2001 | US6285891 Radio communication apparatus having a plurality of communication functions |
| 08/30/2001 | WO2001063903A1 Method of transferring melodic information to a terminal |
| 08/30/2001 | WO2001063899A1 Method of providing information on local business entity and telephonic communication device for utilizing the information |
| 08/30/2001 | WO2001063397A1 Method and apparatus for generating an audio signature for a data item |
| 08/30/2001 | WO2001022745A3 Device for providing services and transmitting data in the home |
| 08/30/2001 | WO2001013622A3 Continuity of voice carried over dsl during power failure |
| 08/30/2001 | US20010018364 TV game apparatus, apparatus having function of notifying user of incoming, and method therefor |
| 08/30/2001 | US20010018355 Method of transferring melodic information to a terminal |
| 08/30/2001 | US20010018354 Cellular phone system with personalized message recorder reproducer unit |
| 08/30/2001 | US20010017852 Handling errors occurring in base-station of a CDMA system |
| 08/30/2001 | EP1145570A3 Device for providing services and transmitting data in the home |
| 08/30/2001 | DE10009683A1 Interrupting communications unit quiescent state, especially in radio communications system, involves reducing time remaining to next activation to time sufficient for activation |
| 08/29/2001 | EP1128654A1 A telephone |
| 08/29/2001 | CN1310563A Portable radio communication equipment with calling indicator and back function without interfering environment |
| 08/23/2001 | US20010016483 Ringing tone data delivery system and method thereof |
| 08/22/2001 | CN1309515A Mobile communication terminal and ringing method |
| 08/21/2001 | US6278778 System and method of power limiting call processing in telecommunications equipment |
| 08/16/2001 | WO2001060095A1 Handling errors occurring in base-station of a cdma system |
| 08/16/2001 | WO2001060029A1 Speakerphone accessory for a telephone instrument |
| 08/16/2001 | WO2001059994A1 Scheduled internet protocol telephone instrument system |
| 08/16/2001 | US20010014617 Wireless communication device having display panel |
| 08/16/2001 | US20010014616 Portable mobile unit |
| 08/16/2001 | EP1123617A1 Circuit for electronically generating a call impedance |
| 08/16/2001 | EP1029289B1 Apparatus and method for configuring settings of a portable intelligent communications device during a meeting |
| 08/15/2001 | CN1308475A Portable telephone set capable of outputting vibration signal as warning signal |
| 08/14/2001 | US6275690 Cellular mobile telephone apparatus |
| 08/09/2001 | US20010012793 Melody playing system |
| 08/09/2001 | US20010012761 Portable radio communication apparatus having a call signal arrival indicating function and a response function without any trouble to circumstance |
| 08/09/2001 | US20010012192 Active current limiter |
| 08/09/2001 | US20010011844 Method and arrangement for controlling functions in a programme- controlled circuit in the event of operating voltage failure |
| 08/07/2001 | US6272331 2-way radio with silent annunciation |
| 08/07/2001 | US6271764 Incoming call alerting method for a radio communication apparatus connected to an external apparatus |
| 08/02/2001 | US20010011014 Response message transmitter and response message transmitting method in cellular mobile telephone apparatus and recording medium recording program for executing the method |
| 08/02/2001 | DE10003963A1 Ringer volume control system for telephones measures ambient noise adjust ringer to suit |
| 08/01/2001 | EP1120918A2 Power saving circuit in mobile terminal with control of the display dependent on the state of operation |
| 07/31/2001 | US6269256 Foldable portable telephone set with automatic off-hook function |
| 07/26/2001 | WO2001054381A2 System and method for time-based information management in a wireless communication device |
| 07/25/2001 | EP1119175A1 Method to reduce distortion of a digital data signal by a POTS ringing signal, and related telephone ringing signal generator |
| 07/24/2001 | CA2217050C Telecommunications functions management system |
| 07/19/2001 | WO2001052506A1 Portable telephone |
| 07/19/2001 | WO2000076197A3 Ground key detection circuit and method for interference-resistant detection of the activation of a ground key for telephones |
| 07/19/2001 | DE19938124C1 Verfahren zum Verwalten der von einer zentralen Netzwerk-Komponente über eine Leitung zu einer dezentralen Netzwerk-Komponente übertragenen Energie und Netzabschlußeinrichtung A method for managing the central component of a network via a line to a decentralized network component transmitted power and network termination |
| 07/18/2001 | EP1117245A1 Method and apparatus enabling a calling telephone handset to choose a ringing indication(s) to be played and/or shown at a receiving telephone handset |
| 07/18/2001 | CN1304273A Segregator for analog of telephone line signal and digital data signal |
| 07/18/2001 | CN1068748C Ringing current powr source of program controlled exchanger |
| 07/17/2001 | US6263218 Incoming calling system |
| 07/17/2001 | US6263074 User programmable station set bass and treble control |
| 07/17/2001 | US6263071 Telecommunications functions management system providing distinctive alerting based on caller selected option |
| 07/17/2001 | US6263015 Analog/digital integrated subscriber circuit |
| 07/17/2001 | CA2117648C Circuitry for superimposing small, low energy signals and large, essentially higher energy signals |
| 07/12/2001 | WO2001050727A2 Digital subscriber loop repeaters and associated methods |
| 07/11/2001 | EP1115215A2 Method and system for data communication |
| 07/11/2001 | CN1303564A Method and arrangement for choosing supply voltage |
| 07/10/2001 | US6259935 Electro-mechanical-acoustic transducing device |
| 07/05/2001 | WO2001049019A1 Method for storing at least one ringing signal sequence, and a telecommunications terminal |
| 07/05/2001 | WO2001049010A1 Method and arrangement as well as terminal for indicating a calling subscriber, or an a-subscriber, in the telecommunications connection setup phase |
| 07/05/2001 | WO2001049006A1 Portable telephone |
| 07/05/2001 | WO2000074328A3 Slic architecture and interfaces |
| 07/04/2001 | EP1113662A2 Circuit arrangement for limiting the input resistance of an a/b interface of a communications network |
| 07/04/2001 | EP1113653A2 Cellular phone system with personalized message recorder reproducer unit |
| 07/04/2001 | EP1112663A2 Bell sound selecting method for a cellular phone using an audio response system |
| 07/04/2001 | EP0738445B1 Clear channel selection system for a cordless telephone |
| 07/04/2001 | CN1302501A Visual alarm for communication module |
| 07/03/2001 | US6256519 Cordless telephone with corded operability |
| 07/03/2001 | US6256518 System for providing power to a wireless system |
| 07/03/2001 | US6256385 Power supply adapter circuit |
| 07/03/2001 | US6255936 Beeper security system |
| 07/03/2001 | CA2232587C Automatic volume adjustment in a wireless handset |
| 06/28/2001 | WO2001047236A2 Remote line feeding |
| 06/28/2001 | DE19962338A1 Method to store at least one ring tone sequence in memory of telephone; involves loading ring tone sequence into telephone memory from an external memory, e.g. compact disc or CD-ROM |
| 06/28/2001 | DE19962282A1 Mobile telephone with display device; has control device, which switches off at least one part of display device according to each operation state of telephone |
| 06/28/2001 | DE10062067A1 Cordless telephone set compares telephone number of calling subscriber with other registered numbers stored in memory and indicates special call, when match is found |
| 06/28/2001 | CA2395302A1 Remote line feeding |
| 06/27/2001 | EP1111885A1 Portable telephone outputting a vibration signalv as alarm signal |
| 06/27/2001 | CN1301122A Energy saving circuit for controlling mobile communication terminal display by working status |
| 06/26/2001 | US6252784 Power amplifier with feedback |
| 06/26/2001 | US6252516 Radio with silent and audible alerts |
| 06/26/2001 | US6252515 Radio with silent and audible alerts |
| 06/21/2001 | WO2001045381A1 A subscriber line interface circuit |
| 06/21/2001 | WO2001045358A1 Method of signalling arrival of a telephone signal by desired sound and doll's moving and apparatus for the same |
| 06/21/2001 | DE19961145A1 Setting call/bell signal involves placing individually selected sounds or noises from external source into memory in sound acquisition/reproduction device for retrieval by initializing signal |
| 06/20/2001 | EP1109394A1 Method for selecting, editing and playing of a complex sound message |
| 06/13/2001 | EP1107563A2 Light emitting display on a portable communication device for incoming phone calls |
| 06/13/2001 | DE19959488A1 Circuit for limiting input impedance of a/b telecommunications interface sets upper and lower input impedance limits depending on amplitude of terminal loop current |
| 06/13/2001 | DE19958969A1 Acoustic signaling used on telephone apparatus, involves acoustically reproducing incoming call signal tone selected and belonging to incoming call number |
| 06/13/2001 | CN1067197C Low internal resistance feed-back device for subscriber's interface |
| 06/12/2001 | US6246889 System, method, and apparatus for delayed call answering |
| 06/12/2001 | US6246761 Automatic volume control for a telephone ringer |
| 06/12/2001 | US6246748 Power feeding system using two-wire subscriber lines |
| 06/07/2001 | WO2001041457A2 Method and apparatus for providing context-based call transfer operation |
| 06/07/2001 | WO2001041405A1 Method and system for placing a telephone call |
| 06/07/2001 | WO2001041122A1 Sound source circuit and telephone terminal comprising thereof |
| 06/06/2001 | CN1298270A Incoming call noting pattern set-up circuit and method for mobile phone |