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)
12/2003
12/10/2003CN1130939C Foldable mobile telephone and call tone output system of said telephone set
12/10/2003CN1130897C Circuit for telephone set comprising light-emitting diode power supply
12/10/2003CN1130890C Visual alarm for communication module
12/09/2003US6661894 Circuit configuration and chip set for supplying a telephone subscriber loop with a supply voltage and network-side terminal of a telephone subscriber loop
12/09/2003US6661892 Method and apparatus for decreasing distortion in a line powered modulator circuit
12/04/2003WO2003019954A3 Interconnect chassis and module
12/04/2003US20030224835 Method and system for extending backup battery life in primary line customer premises equipment
12/04/2003US20030224720 Communication terminal with user-configurable memory
12/04/2003US20030223172 Line powering of auxiliary equipment
12/03/2003CN1460352A Arrival alerting device, arrival alterting method, and mobile terminal
12/02/2003US6658270 Displayer-embedded cellular phone battery
12/02/2003US6658109 Method and apparatus for supplying power to a twisted pair wire on a telecommunications modem transmission link
12/02/2003US6658105 Method to reduce distortion of a digital data signal by a pots ringing signal, and related telephone ringing signal generator
12/02/2003US6658098 Power transfer apparatus for use by network devices including telephone equipment
11/2003
11/27/2003US20030220090 Tone generation system, communication terminal and tone generator module
11/27/2003US20030219110 Mobile communication device and method thereof for changing formats of ring tones
11/27/2003US20030218772 Image printing system and printing method therefor, image printing apparatus and image printing method therefor, printing medium unit, information delivering apparatus and information delivering method therefor, and program
11/25/2003US6654409 Direct digital access arrangement circuitry and method for connecting DSL circuitry to phone lines
11/25/2003US6653930 Urgency-based variable call notification
11/20/2003WO2003096667A1 Mobile terminal device comprising vibrating component having light effects
11/20/2003WO2003096559A1 Intelligent selection of mode of communication
11/20/2003WO2003096079A2 Device housing having one or more optical fibers
11/20/2003WO2003007474A3 Adaptive audible alert volume control
11/20/2003US20030216138 Response message transmitter and response message transmitting method in cellular mobile telephone apparatus and recording medium recording program for executing the method
11/19/2003EP1362311A2 Downloadable multimedia content and method for accounting
11/19/2003CN1457213A Sonic signal long-range telecommunication terminal produced by user sound recording
11/18/2003US6650746 Urgency of call indication to called party through distinctive notification
11/18/2003US6650231 Personal electronic device notification system
11/13/2003WO2003094485A2 Managing power in a line powered network element
11/13/2003US20030211867 Telecommunication terminal for generating a sound signal from a sound recorded by the user
11/13/2003US20030210780 Device housing having one or more optical fibers
11/12/2003EP1361743A1 Telecommunication terminal for generating an audio signal from a sound recorded by the user
11/12/2003EP1360830A1 Device for signalling the receipt of a telephone call on a piece of terminal equipment
11/11/2003US6647117 Continuity of voice carried over DSL during power failure
11/06/2003WO2003092255A1 Audio bandwidth extending system and method
11/06/2003US20030206626 Low voltage circuits powered by the phone line
11/05/2003EP1359734A1 Method to select an acoustic signal sequence for a communication device and communication device thereof
11/05/2003EP1358731A1 Line powered loop extender with communications, control, and diagnostics
11/05/2003EP1079592B1 Ringing signal generator
11/05/2003CN1127275C Radio communication apparatus integrated with personal computer card
11/05/2003CN1127220C Vibration actuator for pager
10/2003
10/30/2003WO2003090431A1 Telephone apparatus
10/30/2003US20030202655 Managing power in a line powered network element
10/30/2003US20030202651 System and method for caller control of a distinctive ring
10/30/2003US20030201779 Mains loss detection apparatus and method
10/29/2003EP1357733A1 Audio bandwidth extending system and method
10/29/2003CN1452414A Reduction of energy consumption in battery power supply network apparatus using sensor
10/29/2003CN1126412C Communication system for mobile terminals, incoming call system and incoming call notification apparatus
10/29/2003CN1126397C Communication network terminal supporting plurality of applications
10/29/2003CN1126351C Arrangement for controlling subscriber interface circuits
10/28/2003US6640318 Continuity testing in communication networks
10/28/2003US6639984 Feeder circuit
10/28/2003US6639983 Adaptable line driver interface for digital telephone systems
10/23/2003WO2003088637A1 Communications device for transmitting acoustic signals in a motor vehicle
10/23/2003WO2003088628A2 Method and apparatus for transmitting signaling tones over a packet switched network
10/23/2003US20030197597 Reducing power consumption in a networked battery-operated device using sensors
10/23/2003DE20310489U1 Charger for mobile telephone has connection cable with connection socket for mobile telephone provided at output and input of charger can be connected to voltage output of bicycle dynamo
10/22/2003EP1355223A2 Reducing power consumption in a networked battery-operated device using sensors
10/22/2003CN1125348C Method for displaying a low battery state in electrical equipment with electrical energy stores and electrical equipment with said display
10/21/2003US6636751 Emergency power supply for cellular telephone
10/21/2003US6636603 System and method for determining the transmit power of a communication device operating on digital subscriber lines
10/21/2003US6636602 Method for communicating
10/17/2003CA2423629A1 Reducing power consumption in a networked battery-operated device using sensors
10/16/2003WO2003036920A3 Ringing controller
10/16/2003WO2003007625A9 Electric power and signal distribution system
10/16/2003US20030194083 Separation of ring detection functions across isolation barrier for minimum power
10/16/2003US20030194082 Method and apparatus for transmitting signaling tones over a packet switched network
10/15/2003EP1352509A1 Signal routing for reduced power consumption in a conferencing system
10/15/2003CN1448777A Image printing system, apparatus and method thereof, information transferring apparatus
10/15/2003CN1124761C Radiotelephone having plurality of subscriber identities and method for operating same
10/09/2003WO2003083571A1 Mobile device and mobile telephone device having imaging function
10/09/2003US20030190934 Keyboard capable of informing user of incoming call
10/09/2003US20030189654 Apparatus for and method of synthesizing face image
10/08/2003EP1351197A2 Method and apparatus for synthesizing face image
10/08/2003CN1124015C Edge detecting circuit and polar reverse detecting circuit for telemetering appts.
10/02/2003WO2003081929A1 Mobile terminal device and communication device system using the mobile terminal device
10/02/2003WO2003081891A1 Automatic adjustments of audio alert characteristics of an alert device using ambient noise levels
10/02/2003WO2003081572A1 Representation generation method, representation generation device, and representation generation system
10/02/2003US20030185387 Interworking interface module for telecommunication switching systems
10/02/2003US20030185385 Peak power management and active decoupling arrangement for span-powered remote terminal access platforms
10/02/2003US20030185384 Output current and voltage regulating interface for remote terminal
09/2003
09/30/2003US6628971 Method for displaying background image in mobile telephone
09/30/2003US6628194 Filtered in-box for voice mail, e-mail, pages, web-based information, and faxes
09/25/2003US20030179887 Automatic adjustments of audio alert characteristics of an alert device using ambient noise levels
09/25/2003US20030178979 Method and device for power supply in telecommunication systems
09/24/2003EP1347607A1 Method and device for power supply in telecommunication systems
09/23/2003US6624746 Musical event information pager and paging system
09/23/2003US6624635 Uninterruptable power supply
09/18/2003WO2003077505A2 Mobile communication terminal with programmable lighting sequences
09/18/2003US20030176205 Mobile communication terminal with unanswered incoming-call notifying function
09/17/2003EP0909499B1 Telephone identification calling apparatus and procedures
09/17/2003CN1121778C Power supply adapter circuit
09/16/2003US6621904 Pre-charging line modem capacitors to reduce DC setup time
09/16/2003US6621903 Portable telephone set and method for inputting said incoming call reporting melody
09/11/2003US20030169151 Method and apparatus for providing dynamic user alert
09/10/2003CN1441609A Mobile phone accessary for providing multiple tone ring bell
09/10/2003CN1121108C Protable cellular phone
09/09/2003US6618482 System and method for protecting devices connected to a telephone line
09/09/2003US6618470 Portable communication terminal providing excitative indication service for incoming call reaching in absence of user's attention, method for producing excitative indication and computer program for the method
09/04/2003WO2003073633A1 Mobile phone accessory for providing multi-chord ring tones
1 ... 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 ... 75