FI912298A - Effekt sparande anordning och foerfarande foer baerbart cellular telefonsystem. - Google Patents

Effekt sparande anordning och foerfarande foer baerbart cellular telefonsystem. Download PDF

Info

Publication number
FI912298A
FI912298A FI912298A FI912298A FI912298A FI 912298 A FI912298 A FI 912298A FI 912298 A FI912298 A FI 912298A FI 912298 A FI912298 A FI 912298A FI 912298 A FI912298 A FI 912298A
Authority
FI
Finland
Prior art keywords
cellular
sparande
baerbart
telefonsystem
effects
Prior art date
Application number
FI912298A
Other languages
English (en)
Other versions
FI912298A0 (fi
Inventor
Lawrence J Harte
Original Assignee
Audiovox Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Audiovox Corp filed Critical Audiovox Corp
Publication of FI912298A0 publication Critical patent/FI912298A0/fi
Publication of FI912298A publication Critical patent/FI912298A/fi

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0238—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is an unwanted signal, e.g. interference or idle signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
    • H04W52/028—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks
    • H04W52/0283—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks with sequential power up or power down of successive circuit blocks, e.g. switching on the local oscillator before RF or mixer stages
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
FI912298A 1990-08-27 1991-05-10 Effekt sparande anordning och foerfarande foer baerbart cellular telefonsystem. FI912298A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/572,409 US5224152A (en) 1990-08-27 1990-08-27 Power saving arrangement and method in portable cellular telephone system

Publications (2)

Publication Number Publication Date
FI912298A0 FI912298A0 (fi) 1991-05-10
FI912298A true FI912298A (fi) 1992-02-28

Family

ID=24287683

Family Applications (1)

Application Number Title Priority Date Filing Date
FI912298A FI912298A (fi) 1990-08-27 1991-05-10 Effekt sparande anordning och foerfarande foer baerbart cellular telefonsystem.

Country Status (5)

Country Link
US (1) US5224152A (fi)
EP (1) EP0473465B1 (fi)
JP (1) JPH0595315A (fi)
CA (1) CA2043118A1 (fi)
FI (1) FI912298A (fi)

Families Citing this family (100)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5351041A (en) * 1990-10-25 1994-09-27 Pioneer Electronic Corporation Method of data communication in communication network on automobile
US7415548B2 (en) 1991-05-13 2008-08-19 Broadcom Corporation Communication network having a plurality of bridging nodes which transmits a polling message with backward learning technique to determine communication pathway
US7558557B1 (en) * 1991-11-12 2009-07-07 Broadcom Corporation Low-power messaging in a network supporting roaming terminals
US6374311B1 (en) * 1991-10-01 2002-04-16 Intermec Ip Corp. Communication network having a plurality of bridging nodes which transmit a beacon to terminal nodes in power saving state that it has messages awaiting delivery
AU664864B2 (en) * 1991-10-01 1995-12-07 Broadcom Corporation A radio frequency local area network
FI98672C (fi) * 1992-04-24 1997-07-25 Nokia Telecommunications Oy Radiojärjestelmä
US5548818A (en) * 1992-08-25 1996-08-20 Rockwell International Network acquisition mechanism for mobile RF data
US7917145B2 (en) * 1992-11-02 2011-03-29 Broadcom Corporation Radio frequency local area network
FI96656C (fi) * 1992-11-27 1996-07-25 Nokia Telecommunications Oy Radiojärjestelmä
JP3325362B2 (ja) * 1993-01-18 2002-09-17 株式会社リコー ファクシミリ装置
US5396660A (en) * 1993-03-26 1995-03-07 Motorola, Inc. Method and apparatus for improving battery life in a portable communication receiver
JP2898506B2 (ja) * 1993-04-19 1999-06-02 三菱電機株式会社 無線電話機
US5715278A (en) * 1993-05-11 1998-02-03 Ericsson Inc. Standby power saving in mobile phones
US5568513A (en) * 1993-05-11 1996-10-22 Ericsson Inc. Standby power savings with cumulative parity check in mobile phones
US8509260B2 (en) 1993-08-31 2013-08-13 Broadcom Corporation Modular, portable data processing terminal for use in a communication network
FI97765C (fi) * 1993-11-26 1997-02-10 Nokia Mobile Phones Ltd Menetelmä sekä kytkentäjärjestely kutsuviestien käsittelemiseksi matkaviestimessä
US5471655A (en) * 1993-12-03 1995-11-28 Nokia Mobile Phones Ltd. Method and apparatus for operating a radiotelephone in an extended stand-by mode of operation for conserving battery power
FI941221A (fi) * 1994-03-15 1995-09-16 Nokia Mobile Phones Ltd Menetelmä matkaviestinjärjestelmän radiopuhelimen tehonkulutuksen pienentämiseksi ja matkaviestin
JP3368439B2 (ja) * 1994-03-17 2003-01-20 富士通株式会社 移動通信システム
US5590396A (en) * 1994-04-20 1996-12-31 Ericsson Inc. Method and apparatus for a deep-sleep mode in a digital cellular communication system
FI942753A (fi) 1994-06-10 1995-12-11 Nokia Mobile Phones Ltd Menetelmä jänniteregulaattorin sisältävän elektronisen laitteen tehonkulutuksen pienentämiseksi
FI96466C (fi) 1994-06-10 1996-06-25 Nokia Mobile Phones Ltd Menetelmä elektronisen laitteen tehonkulutuksen pienentämiseksi ja menetelmän mukainen laite
US5678227A (en) * 1994-07-29 1997-10-14 Motorola, Inc. Apparatus and method for minimizing the turn on time for a receiver operating in a discontinuous receive mode
US5551078A (en) * 1994-07-29 1996-08-27 Motorola, Inc. Apparatus and method for minimizing the turn on time for a receiver operating in a discontinuous receive mode
US5745860A (en) * 1994-12-16 1998-04-28 Telefonaktiebolaget Lm Ericsson Method and system of data transmission and reception in a mobile station within a radio telecommunications system
US5651052A (en) * 1995-03-03 1997-07-22 Alliance Research Corporation Apparatus and method for incoming call detection and alarm circuitry for cellular telephones
US5640441A (en) * 1995-05-08 1997-06-17 Oraelectronics, Inc. Apparatus and method for incoming call detection and alarm circuitry for cellular telephones
AU5848896A (en) * 1995-05-23 1996-12-11 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for supporting delivery of short messag e service messages to sleeping mobile stations in a cellular communications system
US5613235A (en) * 1995-06-29 1997-03-18 Nokia Mobile Phones Limited Operation of a radiotelephone in a synchronous extended standby mode for conserving battery power
US5794137A (en) * 1995-07-17 1998-08-11 Ericsson Inc. Method for increasing stand-by time in portable radiotelephones
US5638421A (en) * 1995-07-25 1997-06-10 Ora Electronics, Inc. Apparatus and method for incoming call detection and alarm circuitry for cellular telephones
US5995559A (en) * 1995-08-31 1999-11-30 Telefonaktiebolaget Lm Ericsson Methods for improved communication using repeated words
US7590083B2 (en) 1995-12-07 2009-09-15 Transcore Link Logistics Corp. Wireless packet data distributed communications system
US5729589A (en) * 1995-12-14 1998-03-17 Oraelectronics, Inc. Apparatus and method for incoming call detection and alarm circuitry for cellular telephones
GB2308531B (en) 1995-12-22 2000-03-08 Nokia Mobile Phones Ltd Radio telephone
US5752201A (en) * 1996-02-09 1998-05-12 Nokia Mobile Phones Limited Mobile terminal having power saving mode that monitors specified numbers of filler messages
JP3694084B2 (ja) * 1996-02-21 2005-09-14 三菱電機株式会社 携帯端末
US5878336A (en) * 1996-03-22 1999-03-02 Motorola, Inc. Apparatus and method for discontinuously operating a receiver
US6205343B1 (en) * 1996-05-28 2001-03-20 Motorola, Inc. Peak current reduction in a cordless telephone handset
US6798735B1 (en) 1996-06-12 2004-09-28 Aware, Inc. Adaptive allocation for variable bandwidth multicarrier communication
US5978366A (en) * 1996-12-20 1999-11-02 Ericsson Inc. Methods and systems for reduced power operation of cellular mobile terminals
US6081733A (en) * 1997-04-16 2000-06-27 Motorola, Inc. Communication control apparatus and method
US6826394B1 (en) * 1997-04-22 2004-11-30 Ericsson Inc. Interaction between an adjunct positioning system and a radiocommunication system
US6049532A (en) * 1997-05-30 2000-04-11 Motorola, Inc. Method of and apparatus for reducing a power consumption of a communication device
US6047169A (en) * 1997-06-06 2000-04-04 Ericsson Inc. Radio communications device with reference-compensated power down control and methods of operating thereof
US6041217A (en) * 1997-07-29 2000-03-21 Vlsi Technology, Inc. Personal handyphone system hardware checking of broadcasting reception indication
US6411830B2 (en) 1997-08-05 2002-06-25 D.S.P.C. Technologies Ltd System and method for reducing power consumption in waiting mode
US6176611B1 (en) 1997-08-05 2001-01-23 D.S.P.C. Technologies Ltd. System and method for reducing power consumption in waiting mode
US20030026282A1 (en) 1998-01-16 2003-02-06 Aware, Inc. Splitterless multicarrier modem
DK1021901T3 (da) 1997-10-10 2010-03-08 Daphimo Co B V Llc Splitterløst multibærermodem
SE518376C2 (sv) * 1997-10-20 2002-10-01 Ericsson Telefon Ab L M Förfarande och anordning i ett radiokommunikationsnätverk
US6157816A (en) * 1997-12-22 2000-12-05 Ericsson Inc. Method of increasing battery life in mobile communications devices which use paging channel displacement
EP1840698B1 (en) * 1998-01-07 2009-08-05 Microsoft Corporation System and method for receiving wireless information on a mobile device
US6445730B1 (en) 1998-01-26 2002-09-03 Aware, Inc. Multicarrier transmission system with low power sleep mode and rapid-on capability
US20040160906A1 (en) 2002-06-21 2004-08-19 Aware, Inc. Multicarrier transmission system with low power sleep mode and rapid-on capability
US6240304B1 (en) 1998-02-11 2001-05-29 Nokia Mobile Phones Ltd. Mobile terminal having RF power consumption optimization of extended standby mode
DE19811853C1 (de) 1998-03-18 1999-09-09 Nokia Mobile Phones Ltd Kommunikationseinrichtung und Verfahren zu deren Betriebssteuerung
CA2867539C (en) 1998-06-26 2017-03-14 Tq Delta, Llc Multicarrier communication with variable overhead rate
KR100303297B1 (ko) * 1998-07-31 2001-09-24 윤종용 휴대폰의 전원절약방법
US6223047B1 (en) 1998-08-26 2001-04-24 Telefonaktiebolaget Lm Ericsson (Publ) Extended sleep mode method and apparatus
DE59912837D1 (de) * 1998-11-13 2005-12-29 Bosch Gmbh Robert Verfahren für einen stromsparenden betrieb von kommunikationsendgeräten in einem insbesondere drahtlosen kommunikationssystem
SE9804420L (sv) * 1998-12-17 2000-06-18 Ericsson Telefon Ab L M Förfarande för minskning av effektkonsumtionen vid portabla radiokommunikationssystem under passningsmod, jämte en mobilstation anpassad för att minska effektkonsumtionen under passningsmod
EP2302857B1 (en) * 1999-01-26 2015-09-02 TQ Delta, LLC Multicarrier transmission system with low power sleep mode and rapid-on-capability
EP1901512B1 (en) * 1999-01-26 2011-11-23 Aware, Inc. Multicarrier transmission system with low power sleep mode and rapid-on-capability
EP2330749B1 (en) * 1999-01-26 2014-04-30 TQ Delta, LLC Multicarrier transmission system with low power sleep mode and rapid-on-capability
US6377790B1 (en) 1999-03-08 2002-04-23 Sharp Laboratories Of America, Inc. Mobile-initiated, packet switched communications method
US20060274840A1 (en) 2005-06-06 2006-12-07 Marcos Tzannes Method for seamlessly changing power modes in an ADSL system
EP1956785B1 (en) 1999-03-12 2012-12-26 Daphimo Co. B.V., LLC Multicarrier modulation system and method
US6775320B1 (en) 1999-03-12 2004-08-10 Aware, Inc. Method and a multi-carrier transceiver supporting dynamic switching between active application sets
US6381450B1 (en) 1999-04-02 2002-04-30 D.S.P.C. Technologies Ltd. Method and device for managing power consumption of a receiver in stand-by mode
US6501969B1 (en) * 1999-05-05 2002-12-31 Agere Systems Inc. Extended power savings for electronic devices
US6628946B1 (en) 1999-05-20 2003-09-30 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for broadcasting system information in a cellular communications network
US6748016B1 (en) 1999-07-16 2004-06-08 Aware, Inc. System and method for transmitting messages between transceivers using electromagnetically coupled signals
DE19963040A1 (de) * 1999-12-24 2001-07-05 Philips Corp Intellectual Pty Mobilfunkgeät mit adaptiver Erkennnung von leeren Rufmeldungen
US6678508B1 (en) 2000-02-07 2004-01-13 Ericsson Inc. Power conservation method for mobile communications device with two receivers
US6687314B1 (en) * 2000-03-03 2004-02-03 Eric David Leonard Method and apparatus for performing analog mode operations when receiving data and signaling tones in a wireless TDMA system
US6633769B2 (en) * 2000-07-24 2003-10-14 Symbol Technologies, Inc. Wireless access point software system
GB2369963A (en) * 2000-12-11 2002-06-12 Motorola Inc Battery saving in a radio communication unit
FI20010760A0 (fi) * 2001-04-11 2001-04-11 Nokia Corp Menetelmä radiotaajuisen (RF) signaalin vastaanottamiseksi ja RF-vastaanotin
DE10160510B4 (de) * 2001-11-30 2009-08-27 IHP GmbH - Innovations for High Performance Microelectronics/Institut für innovative Mikroelektronik Steuereinheit und Verfahren zum Steuern einer Empfangseinheit
US6907028B2 (en) 2002-02-14 2005-06-14 Nokia Corporation Clock-based time slicing
US7130313B2 (en) * 2002-02-14 2006-10-31 Nokia Corporation Time-slice signaling for broadband digital broadcasting
US6728241B2 (en) * 2002-02-27 2004-04-27 Nokia Corporation Boolean protocol filtering
US20030162543A1 (en) * 2002-02-28 2003-08-28 Nokia Corporation System and method for interrupt-free hand-over in a mobile terminal
US7844214B2 (en) * 2002-03-02 2010-11-30 Nokia Corporation System and method for broadband digital broadcasting
DE10222970A1 (de) * 2002-05-23 2004-02-05 Philips Intellectual Property & Standards Gmbh Verfahren zur Netzverbindung eines UMTS-Mobilfunkgeräts
US6788690B2 (en) 2002-06-27 2004-09-07 Nokia Corporation Packet identifier search filtering
US8707406B2 (en) * 2002-07-26 2014-04-22 Sierra Wireless, Inc. Always-on virtual private network access
US7158760B1 (en) * 2002-08-22 2007-01-02 Qualcomm Inc. Frequency synthesizer with selectable preconfigured synthesizer characteristics
US7058034B2 (en) 2002-09-09 2006-06-06 Nokia Corporation Phase shifted time slice transmission to improve handover
US20040057400A1 (en) * 2002-09-24 2004-03-25 Nokia Corporation Anti-synchronous radio channel slicing for smoother handover and continuous service reception
US20050009523A1 (en) * 2003-07-07 2005-01-13 Nokia Corporation Protocol using forward error correction to improve handover
US7660583B2 (en) * 2004-03-19 2010-02-09 Nokia Corporation Advanced handover in phased-shifted and time-sliced networks
US7407108B1 (en) 2005-05-24 2008-08-05 Sprint Spectrum L.P. Web content power consumption notification for wireless devices
US20070004451A1 (en) * 2005-06-30 2007-01-04 C Anderson Eric Controlling functions of a handheld multifunction device
KR101181723B1 (ko) 2006-02-07 2012-09-19 삼성전자주식회사 무선 통신 시스템에서 페이징 메시지 디코딩 방법과 장치
JP4718595B2 (ja) * 2007-12-27 2011-07-06 パナソニック株式会社 無線通信システム及び携帯端末装置
US20090307617A1 (en) * 2008-06-04 2009-12-10 Brandpartners System and Method For Providing Static Electric Display
JP2009118499A (ja) * 2008-12-19 2009-05-28 Aware Inc 停電力休眠モードと急速作動機能を有するマルチキャリア伝送方式
WO2016120615A1 (en) 2015-01-27 2016-08-04 Kofinder Technologies, Inc. A mobile device and method of control thereof

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4518961A (en) * 1980-10-01 1985-05-21 Motorola, Inc. Universal paging device with power conservation
JPS5812444A (ja) * 1981-07-14 1983-01-24 Nec Corp 無線選択呼出受信機
JPS58188943A (ja) * 1982-04-14 1983-11-04 Nec Corp 無線選択呼出受信機
US4745408A (en) * 1983-04-09 1988-05-17 Nec Corporation Radio paging system and receiver therefor
JPS6027241A (ja) * 1983-07-25 1985-02-12 Nec Corp 無線中継方式のバツテリセ−ビング方式
JPS60182825A (ja) * 1984-02-29 1985-09-18 Nec Corp 無線電話方式
JPS6143025A (ja) * 1984-08-07 1986-03-01 Nec Corp 無線通信方式
JPS62160830A (ja) * 1986-01-10 1987-07-16 Nec Corp 選択呼出信号受信機
WO1988005248A1 (en) * 1987-01-02 1988-07-14 Motorola, Inc. Paging system with assignable battery saver duty cycle
JPH0666705B2 (ja) * 1987-01-12 1994-08-24 日本電気株式会社 間欠受信回路
KR910008738B1 (ko) * 1987-02-20 1991-10-19 닛본 덴기 가부시기가이샤 밧데리 절약 채널 스캔 기능을 갖고 있는 휴대용 무선 송수신기
JP2516983B2 (ja) * 1987-06-19 1996-07-24 松下通信工業株式会社 無線電話装置
JP2588204B2 (ja) * 1987-07-29 1997-03-05 株式会社東芝 選択呼出受信機
JPH01190054A (ja) * 1988-01-25 1989-07-31 Man Design Kk 受信機
FR2626998B1 (fr) * 1988-02-05 1990-08-03 Bendix Electronics Sa Systeme de mise en etat operationnel et en etat de veille de boitiers electroniques connectes a un canal de communication
JPH0616601B2 (ja) * 1988-09-07 1994-03-02 三洋電機株式会社 受信電波処理回路のパワーセイブ回路及びそのパワーセイブ方法
JP2805767B2 (ja) * 1988-09-26 1998-09-30 日本電気株式会社 無線送受信機
US4995099A (en) * 1988-12-01 1991-02-19 Motorola, Inc. Power conservation method and apparatus for a portion of a predetermined signal
US4996526A (en) * 1988-12-01 1991-02-26 Motorola, Inc. Power conservation method and apparatus for a portion of a synchronous information signal
US4961073A (en) * 1989-02-27 1990-10-02 Motorola, Inc. Battery saving apparatus and method providing optimum synchronization codeword detection
US4969180A (en) * 1989-05-18 1990-11-06 I.I.N.V. Computing Ltd. Cordless pen telephone handset
US4964121A (en) * 1989-08-30 1990-10-16 Motorola, Inc. Battery saver for a TDM system
US5010330A (en) * 1989-12-26 1991-04-23 Motorola, Inc. Paging system employing designated frame commencing information service data message transmission
US5001471A (en) * 1989-12-26 1991-03-19 Motorola, Inc. Paging system employing designated batch information service data message transmission

Also Published As

Publication number Publication date
JPH0595315A (ja) 1993-04-16
EP0473465B1 (en) 1996-03-13
EP0473465A1 (en) 1992-03-04
CA2043118A1 (en) 1992-02-28
FI912298A0 (fi) 1991-05-10
US5224152A (en) 1993-06-29

Similar Documents

Publication Publication Date Title
FI912298A (fi) Effekt sparande anordning och foerfarande foer baerbart cellular telefonsystem.
FI910670A (fi) Foerfarande foer att minska stroemfoerbrukningen i en mobiltelefon.
DK0587792T3 (da) Kommunikationsenhed med batterisparetilstand
FI954456A0 (fi) Järjestely matkapuhelimen ja siihen kytketyn oheislaitteen tehon säästämiseksi
CA2230884A1 (en) Method and apparatus for low power mobile units for cellular communication system
BR9712756A (pt) Processo para reduzir o consumo de potência em um dispositivo de telecomunicações,e, circuito de sincronização em um dispositivo de telecomunicações.
KR950702357A (ko) 배터리 절약 기능이 있는 2중 모드 수신기(Dual Mode Receiver Having Battery Saving Capability)
DK2695A (da) Standby effektbesparelse i mobiltelefoner
DE69430979D1 (de) Funkrufnachrichterverarbeitung
FR2550900B1 (fr) Poste recepteur a faible consommation d'energie
NO921813D0 (no) Mobilt, traadloest apparat
HK1035958A1 (en) Cell search method and cell search circuit in cdmacapable of carrying out a cell search processing at a high speed.
DE69838803D1 (de) Bildaufnahme- und Bildwiedergabegerät
WO1999012245A3 (en) Portable electronic device and method
SE9102886L (sv) Foerfarande foer att undvika en onoedigt hoeg energifoerbrukning hos mobila stationer i ett mobiltelefonisystem
FI923978A0 (fi) Effektekonomi i mobilteleapparat.
JPS5316513A (en) Mobile wireless telephone unit
ATE98069T1 (de) Warnfunkempfaenger.
GB2271914B (en) Mobile telephone device with low power consumption
KR950022215A (ko) 셀룰라 폰의 통화시 전력 절감방법
JPS53107214A (en) Radio transmission-reception system
JPS53123612A (en) Transmission output control system
GB9700536D0 (en) Radio communication apparatus
JPS631492Y2 (fi)
JPS5747862B2 (fi)