FI921026A0 - Förfarande för stabilisering av referensfrekvensen i en radiotelefon - Google Patents

Förfarande för stabilisering av referensfrekvensen i en radiotelefon

Info

Publication number
FI921026A0
FI921026A0 FI921026A FI921026A FI921026A0 FI 921026 A0 FI921026 A0 FI 921026A0 FI 921026 A FI921026 A FI 921026A FI 921026 A FI921026 A FI 921026A FI 921026 A0 FI921026 A0 FI 921026A0
Authority
FI
Finland
Prior art keywords
radiotelephone
stabilizing
reference frequency
frequency
radiotelephone reference
Prior art date
Application number
FI921026A
Other languages
English (en)
Finnish (fi)
Other versions
FI90383C (sv
FI90383B (sv
Inventor
Veijo Korhonen
Tero Ojanperae
Original Assignee
Nokia Mobile Phones Ltd
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 Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Priority to FI921026A priority Critical patent/FI90383C/sv
Publication of FI921026A0 publication Critical patent/FI921026A0/sv
Priority to EP93300269A priority patent/EP0560475B1/en
Priority to DE69320510T priority patent/DE69320510T2/de
Priority to JP04624693A priority patent/JP3291058B2/ja
Application granted granted Critical
Publication of FI90383B publication Critical patent/FI90383B/sv
Publication of FI90383C publication Critical patent/FI90383C/sv
Priority to US08/730,182 priority patent/US5649320A/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
    • H03J1/0058—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor provided with channel identification means
    • H03J1/0066—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor provided with channel identification means with means for analysing the received signal strength
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
    • H03L1/022—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature
    • H03L1/026—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature by using a memory for digitally storing correction values
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/405—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with multiple discrete channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Superheterodyne Receivers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Transceivers (AREA)
FI921026A 1992-03-09 1992-03-09 Förfarande för stabilisering av referensfrekvensen i en radiotelefon FI90383C (sv)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FI921026A FI90383C (sv) 1992-03-09 1992-03-09 Förfarande för stabilisering av referensfrekvensen i en radiotelefon
EP93300269A EP0560475B1 (en) 1992-03-09 1993-01-15 Method and apparatus for selecting optimum receiving frequency in a multichannel receiver
DE69320510T DE69320510T2 (de) 1992-03-09 1993-01-15 Verfahren und Vorrichtung zum Auswählen der optimalen Empfangsfrequenz in einem Vielkanalempfänger
JP04624693A JP3291058B2 (ja) 1992-03-09 1993-03-08 受信機
US08/730,182 US5649320A (en) 1992-03-09 1996-10-15 Automatic frequency control loop and temperature compensation for a receiver

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI921026 1992-03-09
FI921026A FI90383C (sv) 1992-03-09 1992-03-09 Förfarande för stabilisering av referensfrekvensen i en radiotelefon

Publications (3)

Publication Number Publication Date
FI921026A0 true FI921026A0 (sv) 1992-03-09
FI90383B FI90383B (sv) 1993-10-15
FI90383C FI90383C (sv) 1994-01-25

Family

ID=8534887

Family Applications (1)

Application Number Title Priority Date Filing Date
FI921026A FI90383C (sv) 1992-03-09 1992-03-09 Förfarande för stabilisering av referensfrekvensen i en radiotelefon

Country Status (5)

Country Link
US (1) US5649320A (sv)
EP (1) EP0560475B1 (sv)
JP (1) JP3291058B2 (sv)
DE (1) DE69320510T2 (sv)
FI (1) FI90383C (sv)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3186500B2 (ja) * 1995-03-29 2001-07-11 三菱電機株式会社 無線装置及び無線装置の調整方法
DE19519421A1 (de) * 1995-05-26 1996-12-19 Bosch Gmbh Robert Telekommunikationsendgerät
US6075979A (en) * 1996-03-20 2000-06-13 U.S. Philips Corporation Radio receivers
GB2315197B (en) * 1996-07-11 2000-07-12 Nokia Mobile Phones Ltd Method and apparatus for system clock adjustment
JPH10276112A (ja) * 1997-03-28 1998-10-13 Sanyo Electric Co Ltd ラジオ受信機
US6370157B2 (en) * 1997-04-30 2002-04-09 Lucent Technologies Inc. Automatic frequency control for a cellular base station
US6278867B1 (en) 1998-11-25 2001-08-21 Ericsson Inc. Methods and systems for frequency generation for wireless devices
US6396317B1 (en) 1999-05-28 2002-05-28 Peco Ii, Inc., Digital voltage controlled oscillator
AU6759500A (en) * 1999-08-05 2001-03-05 Crosslink Inc. Am demodulator using carrier phase correction
US6928275B1 (en) * 2000-05-08 2005-08-09 Qualcomm Incorporated Method and apparatus for compensating local oscillator frequency error
US6522871B1 (en) * 2000-05-09 2003-02-18 Qualcomm, Incorporated Method and apparatus for compensating local oscillator frequency error through environmental control
US6636722B1 (en) 2000-09-12 2003-10-21 Tektronix, Inc. Broadband receiver amplitude/phase normalization using a broadband temperature compensated noise source and a pseudo random sequence generator
DE10046574B4 (de) * 2000-09-20 2007-02-15 Siemens Ag Verfahren zur Kalibrierung der Frequenz eines HF-Oszillators in einem Mobilteil einer mobilen Kommunikationseinrichtung
US6933788B2 (en) * 2001-05-16 2005-08-23 Kyocera Wireless Corp. Reference oscillator
US6803855B2 (en) * 2001-09-13 2004-10-12 Siemens Vdo Automotive Corporation Method for reducing average current consumption in duty-cycled RF systems
US6718167B2 (en) * 2002-08-01 2004-04-06 Agere Systems Inc. Filter center frequency temperature compensation by adjustment of the operating frequency of the host system
US20040227578A1 (en) * 2003-05-14 2004-11-18 Miikka Hamalainen Acoustic resonance-based frequency synthesizer using at least one bulk acoustic wave (BAW) or thin film bulk acoustic wave (FBAR) device
WO2005122412A1 (en) * 2004-06-07 2005-12-22 Nokia Corporation Localization of narrowband signals
FI20045212A (sv) 2004-06-07 2004-06-07 Nokia Corp Lokalisering av smalband signaler
DE102004046476B4 (de) * 2004-09-23 2007-04-19 Elan Schaltelemente Gmbh & Co. Kg Verfahren zur Erhöhung der Verfügbarkeit einer Funkstrecke
KR100698160B1 (ko) * 2005-09-09 2007-03-22 엘지전자 주식회사 이동통신 단말기의 네트워크 검색 방법
US8760176B2 (en) * 2010-11-10 2014-06-24 St-Ericsson Sa Methods and systems for production testing of DCO capacitors
US9548744B2 (en) 2014-08-18 2017-01-17 Qualcomm Incorporated Compensating for hysteretic characteristics of crystal oscillators

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS593891B2 (ja) * 1979-01-17 1984-01-26 ソニー株式会社 受信検出回路
US4374437A (en) * 1980-12-29 1983-02-15 Zenith Radio Corporation Variable ramp speed TV tuning system for rapid channel tuning
JPS59178013A (ja) * 1983-03-29 1984-10-09 Pioneer Electronic Corp 受信機の選局方法
US4703520A (en) * 1986-10-31 1987-10-27 Motorola, Inc. Radio transceiver having an adaptive reference oscillator
JPH0781266B2 (ja) * 1987-05-28 1995-08-30 鹿島建設株式会社 地中連続壁掘削装置
DE3871893D1 (de) * 1987-09-28 1992-07-16 Siemens Ag Verfahren zur temperaturkompensation eines spannungsgesteuerten quarzoszillators in einem phasenregelkreis.
JPH07105756B2 (ja) * 1988-06-29 1995-11-13 松下電器産業株式会社 移動通信方法
JPH0332205A (ja) * 1989-06-29 1991-02-12 Nippon Denki Musen Denshi Kk デジタル温度補償水晶発振器
US5204975A (en) * 1989-10-12 1993-04-20 Seiko Epson Corporation Digitally-corrected temperature-compensated crystal oscillator having a correction-suspend control for communications service
FI87032C (sv) * 1990-01-18 1992-11-10 Nokia Mobile Phones Ltd Interpolerande PLL-frekvenssyntetiserare
JP3034908B2 (ja) * 1990-05-18 2000-04-17 パイオニア株式会社 ラジオ受信機のプリセット・スキャン方式
JP2669136B2 (ja) * 1990-10-05 1997-10-27 三菱電機株式会社 Ｒｄｓ受信機の自動選局制御装置

Also Published As

Publication number Publication date
JPH0645960A (ja) 1994-02-18
DE69320510D1 (de) 1998-10-01
EP0560475A1 (en) 1993-09-15
JP3291058B2 (ja) 2002-06-10
DE69320510T2 (de) 1999-02-11
FI90383C (sv) 1994-01-25
EP0560475B1 (en) 1998-08-26
US5649320A (en) 1997-07-15
FI90383B (sv) 1993-10-15

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Legal Events

Date Code Title Description
BB Publication of examined application