Patents
Sitemap › H04 - Electric communication technique › H04M - Telephonic communication › H04M 19 - Current supply arrangements for telephone systems
Patents for H04M 19 - Current supply arrangements for telephone systems (7,475)
09/2003
09/04/2003US20030166405 Method and apparatus for combining properties in mobile station
09/04/2003US20030165232 Active mode line voltage regulator for ringing subscriber line interface circuit
09/01/2003CA2420515A1 Cordless telephone outlet devive
08/2003
08/28/2003WO2003071433A1 Information device controller, information device, method, and program
08/28/2003US20030162571 Mobile phone accessory for providing multi-chord ring tones
08/28/2003US20030162449 Power supply for phantom-feed LAN connected device using spare-pair powering
08/27/2003EP1338137A2 Communication terminal with user-configurable memory
08/27/2003EP1338136A2 Music data reproduction function and method for a mobile phone , and the program thereof
08/27/2003CN1119903C Power conservation for POTS and modulated data transmission and receiving apparatus
08/26/2003US6611592 Incoming-call tone generation device
08/26/2003US6611583 Computer-based method and apparatus for controlling, monitoring, recording and reporting telephone access
08/21/2003WO2002037369A3 Downloadable multimedia content and method for accounting
08/21/2003US20030156711 Echo processing apparatus
08/21/2003DE20308060U1 Mobile phone has extra alphanumeric display for function specific information.
08/20/2003EP1096692B9 Internal temperature regulation of subscriber terminal
08/20/2003CN1119007C Method for determining operating states of electronic equipment and electronic equipment for judging specific operating states of the equipment
08/19/2003US6608996 Cover for an electronic device
08/19/2003US6608900 Load management system for an electrical device
08/14/2003WO2003067727A1 Remote enclosure systems and methods of production thereof
08/14/2003US20030154245 Method and system for driving an indicating element on a terminal
08/14/2003US20030153366 Cellular phone set and incoming call notification control method used therein
08/14/2003US20030153365 Alert signal generation
08/14/2003US20030153364 Courtesy answering solution for wireless communication devices
08/13/2003CN1436021A Cellular telephone set and call-in notification controlling method
08/13/2003CN1435935A Battery driven machine using vibrator
08/13/2003CN1118180C Subscriber circuit with built-in polarity switching circuit
08/12/2003US6606508 Method for handling phone numbers in mobile station and mobile station
08/12/2003US6606383 Automatic remote termination sensing and line powering scheme
08/07/2003WO2003065705A1 A method for providing a signal to be output by a telephone for indicating an incoming call
08/07/2003US20030147113 Communication apparatus having a light emitting unit that emits light in a variety of colors
08/06/2003CN2565212Y Entry server for supplying musical content
08/06/2003CN1434599A Two-four line conversion device and ac feed device for user interface circuit
08/05/2003US6603985 Ringing tone control method and device for mobile communication apparatus
08/05/2003US6603220 Terminal adapted to be powered locally and to receive a remote power feed via a link connecting it to a local area network
08/05/2003CA2058775C Transmission and decoding of tree-encoder parameters of analogue signals
07/2003
07/31/2003WO2003063343A1 Differential input stage for electronic equipment, comprising means for reducing interference caused by a voltage or current in common mode
07/31/2003US20030143992 Method of controlling the auditory response of wireless devices
07/31/2003US20030143888 Battery-driven equipment using vibrator
07/31/2003US20030142817 Earphone cable-receiving device with power recharge function
07/30/2003EP1331731A1 Differential input stage of an electronic device with reducing means for current and voltage disturbances from common mode signals
07/24/2003US20030138082 Line interface for combining a voice band signal and an XDSL signal on a twisted-pair copper line
07/24/2003DE20307848U1 Emergency power supply cable for cordless telephone has suitable plug for connecting base station with small low current socket to handset with small plug when accumulator discharged
07/24/2003DE10140357C2 Telefonsystem mit regelbarer Klingelspannung Telephone system with adjustable ringing voltage
07/23/2003EP1330106A1 Power supply for phantom-feed LAN connected device using spare wires
07/23/2003EP1329092A1 Call-detection device in telecommunication terminals with analogue exchange interfaces
07/22/2003US6597767 Method and apparatus for synchronizing analog call display data in a distributed system
07/17/2003US20030133564 Method of generating a ring signal in a subscriber line interface circuit technical field
07/16/2003EP1328111A1 Power switch device utilizing phone loop signals to control supply of electrical power to a telephony instrument
07/16/2003CN1430344A 通信设备 Communication Equipment
07/16/2003CN1115036C Incoming call alerter method for radio communication apparatus connected to one to one external apparatus
07/15/2003CA2365167C A communication network terminal supporting a plurality of applications
07/10/2003US20030128837 Power switch device utilizing phone loop signals to control supply of electrical power to a telephony instrument
07/10/2003US20030128834 Method and apparatus for producing ringing tones in a communication device
07/10/2003DE10140358C2 Telefonsystem mit Stromregelung im Konstantstrombereich Telephone system with power control in constant current region
07/09/2003EP1325622A1 Method and circuit arrangement for detecting ring trip in a wireline telephone network
07/09/2003CN1429467A Network termination unit for user terminal and method for power-dissipation optimised generation of call voltage in user terminal
07/09/2003CN1114330C Sound volume setting device for portable telephone
07/08/2003US6590977 Analog subscriber circuit
07/03/2003US20030125957 System and method for generating an identification signal for electronic devices
07/03/2003US20030123648 Fiber to the curb and fiber to the neighborhood power architecture
07/02/2003EP1324578A2 Communication apparatus having a light emitting unit that emits light in a variety of colors
07/02/2003CN1427633A Vibration actuator for pager
07/01/2003US6587682 Signal routing for reduced power consumption in a conferencing system
07/01/2003US6587560 Low voltage circuits powered by the phone line
07/01/2003US6587454 Network adaptor for telephone and data traffic
07/01/2003US6587035 Portable radio information terminal, message- notification method, recording medium and microcomputer
06/2003
06/26/2003US20030121052 Method and system for increasing subscriber line interface circuit voltage during ringing
06/26/2003US20030119443 Portable telephone
06/26/2003US20030118157 Ringing controller
06/26/2003US20030118089 Method and system for DSL power saving
06/25/2003EP0765561B1 Communication device
06/25/2003CN1426259A Dynamic back lighting method for mobile communication terminal
06/24/2003US6584306 Two-way radio with silent annunciation
06/24/2003US6584197 Power-limited remote termination converter with wetting current and emergency power operation for digital data transmission equipment
06/19/2003WO2003041381A3 Least mean power consumption in telecommunications systems
06/19/2003WO2003034185A3 Method and system for dsl power saving
06/19/2003US20030114150 Mobile telephone and its control method
06/19/2003US20030112216 Method for dynamically lightening backlights of mobile communications terminal
06/19/2003US20030110928 Sound source circuit and telephone terminal comprising thereof
06/18/2003EP1320249A2 Ringing signal generator
06/18/2003EP1320245A1 Method for dynamically lightening backlights of mobile communications terminal
06/18/2003EP1319286A1 System for using a local wireless network to control a device within range of the network
06/18/2003EP1319258A2 Continuity testing in communication networks
06/18/2003DE20306804U1 Communications control center for voice- and data- switching services via PC and telephone, has central module and decentralized module located in separate housings
06/17/2003US6581163 Mains loss detection apparatus and method
06/17/2003US6580254 Apparatus and method for providing span power to communication equipment at a customer premise
06/12/2003US20030109289 Portable telephone
06/12/2003US20030109251 System and method for distributing ring tone data used for generating ring tone of mobile phones
06/12/2003US20030108190 Line conditioner and build-out for telephone systems
06/12/2003US20030108003 Universal personal electronic device power-off or other operating mode change enforcement
06/11/2003EP1318653A1 Line interface for combining a voice band signal and an XDSL signal on a twisted-pair copper line
06/10/2003US6577882 Arrangement and a method relating to power supply in a communications network
06/10/2003US6577730 Modular digital telephone system and method including an universal telephony shelf
06/10/2003US6577729 Alarm display and method
06/10/2003US6577722 Call waiting response status
06/10/2003US6575792 Jack assembly
06/04/2003EP1316199A1 Radio communication device
06/03/2003US6573825 Communication apparatus and alerting method
05/2003
05/30/2003WO2003045091A1 Method for setting up theme pictures and ringing tones of a mobile telecommunication terminal
05/30/2003WO2002032087A3 Mobile phone with music reproduction function, music data reproduction method by mobile phone with music reproduction function, and the program thereof
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