DK1226452T3 - Kalibrering af en radio ved korrektion af krystaloscillatorfrekvensen - Google Patents

Kalibrering af en radio ved korrektion af krystaloscillatorfrekvensen

Info

Publication number
DK1226452T3
DK1226452T3 DK00974206T DK00974206T DK1226452T3 DK 1226452 T3 DK1226452 T3 DK 1226452T3 DK 00974206 T DK00974206 T DK 00974206T DK 00974206 T DK00974206 T DK 00974206T DK 1226452 T3 DK1226452 T3 DK 1226452T3
Authority
DK
Denmark
Prior art keywords
frequency
crystal frequency
once
present
calibration
Prior art date
Application number
DK00974206T
Other languages
English (en)
Inventor
Aera Seste Dell
Original Assignee
Conexant Systems Inc
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 Conexant Systems Inc filed Critical Conexant Systems Inc
Application granted granted Critical
Publication of DK1226452T3 publication Critical patent/DK1226452T3/da

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/197—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J2200/00—Indexing scheme relating to tuning resonant circuits and selecting resonant circuits
    • H03J2200/07—Calibration of receivers, using quartz crystal oscillators as reference
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/197—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division
    • H03L7/1974—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division for fractional frequency division
    • H03L7/1976—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division for fractional frequency division using a phase accumulator for controlling the counter or frequency divider

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Superheterodyne Receivers (AREA)
  • Transmitters (AREA)
  • Circuits Of Receivers In General (AREA)
DK00974206T 1999-11-02 2000-11-01 Kalibrering af en radio ved korrektion af krystaloscillatorfrekvensen DK1226452T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002288495A CA2288495A1 (en) 1999-11-02 1999-11-02 Radio calibration by correcting the crystal frequency
PCT/CA2000/001302 WO2001033249A2 (en) 1999-11-02 2000-11-01 Radio calibration by correcting the crystal oscillator frequency

Publications (1)

Publication Number Publication Date
DK1226452T3 true DK1226452T3 (da) 2003-06-02

Family

ID=4164564

Family Applications (1)

Application Number Title Priority Date Filing Date
DK00974206T DK1226452T3 (da) 1999-11-02 2000-11-01 Kalibrering af en radio ved korrektion af krystaloscillatorfrekvensen

Country Status (7)

Country Link
US (1) US6970701B1 (da)
EP (1) EP1226452B1 (da)
AT (1) ATE235691T1 (da)
CA (1) CA2288495A1 (da)
DE (1) DE60001859T2 (da)
DK (1) DK1226452T3 (da)
WO (1) WO2001033249A2 (da)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7840189B2 (en) 2004-12-15 2010-11-23 Freescale Semiconductor, Inc. Frequency generation in a wireless communication unit
CN111665392B (zh) * 2018-05-16 2022-06-10 浙江大学台州研究院 石英晶片研磨的高精度频率统计校准的方法
US10812089B2 (en) * 2019-03-18 2020-10-20 Xilinx, Inc. Apparatus and method to reduce lock time via frequency band calibration
FR3094540B1 (fr) * 2019-03-27 2021-02-19 Continental Automotive Procédé de contrôle d’une activation d’une fonction par un module de commande d’une unité roue
US11275144B2 (en) 2020-03-17 2022-03-15 Oracle International Corporation Automated calibration of EMI fingerprint scanning instrumentation for utility power system counterfeit detection

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360832A (en) 1979-03-26 1982-11-23 Matsushita Electric Corporation Frequency synthesizer tuning system for television receivers
US5552838A (en) * 1993-12-24 1996-09-03 Kabushiki Kaisha Toshiba Apparatus for tuning offset signals by controlling a tuner based on a difference in frequency of signals tuned by that tuner
US5659884A (en) * 1995-02-10 1997-08-19 Matsushita Communication Industrial Corp. Of America System with automatic compensation for aging and temperature of a crystal oscillator
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
US5604468A (en) * 1996-04-22 1997-02-18 Motorola, Inc. Frequency synthesizer with temperature compensation and frequency multiplication and method of providing the same
US5856766A (en) * 1997-06-30 1999-01-05 Motorola Inc. Communication device with a frequency compensating synthesizer and method of providing same
CA2220622C (en) * 1997-11-03 2004-03-30 Aubin P. J. Roy Method and circuit for built in self test of phase locked loops
JP4089003B2 (ja) 1998-04-01 2008-05-21 ソニー株式会社 受信機及び受信方法
US6304517B1 (en) * 1999-06-18 2001-10-16 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for real time clock frequency error correction

Also Published As

Publication number Publication date
WO2001033249A3 (en) 2001-12-06
EP1226452A2 (en) 2002-07-31
DE60001859T2 (de) 2004-03-04
WO2001033249A2 (en) 2001-05-10
EP1226452B1 (en) 2003-03-26
US6970701B1 (en) 2005-11-29
CA2288495A1 (en) 2001-05-02
ATE235691T1 (de) 2003-04-15
DE60001859D1 (de) 2003-04-30

Similar Documents

Publication Publication Date Title
DE60209477D1 (de) Referenz-oszillator mit automatischer korrektur von alterung und temperaturabhängigkeit
WO2003075448A3 (en) Method and system for calibrating an oscillator circuit using a network based time reference
MY124738A (en) Method and apparatus for real time clock frequency error correction.
AU2003295399A1 (en) Vco gain tracking for modulation gain setting calibration
AU2002226093A1 (en) Process for the manufacture of novel, inexpensive radio frequency identificationdevices
AU2003266080A1 (en) Reference timing signal oscillator with frequency stability
JP2004524739A (ja) 無線通信においてローカル発振器の周波数を較正する装置および方法。
WO2004095718A3 (en) Automatic frequency control processing in multi-channel receivers
AU2002353084A1 (en) Varactor with improved tuning range
AU2003281442A1 (en) Synchronization of transmitter and receiver frequencies in multiaccess networks
DE60300445D1 (de) HF-Mehrbandempfänger unter Verwendung von HF-Breitbandfiltern
AU2003278176A1 (en) Micro-electromechanical varactor with enhanced tuning range
GB2375016B (en) Satellite up-link fade compensation
ATE305669T1 (de) Multiprotokollempfänger
TW200720690A (en) Gps receiver devices and compensation methods therefor
DE60324722D1 (de) Funkempfänger und Empfangsverfahren zur Regelung der Antennenstrahlbreite
WO1999031912A3 (en) Circuit for synchronizing cdma mobile phones
JP2006191585A (ja) 通信システムで使用される水晶のための周波数オフセット補正技術
DK1428412T3 (da) Höreapparat med ydelsesoptimeret effektforbrug for variabel clock, forsyningsspænding og DSP-behandlingsparametre
DK1226452T3 (da) Kalibrering af en radio ved korrektion af krystaloscillatorfrekvensen
AU2003280497A1 (en) Phase-locked loop with automatic frequency tuning
SE0303583D0 (sv) Method and arrangement for reciprocity calibration in wireless communication
AU6487099A (en) Frequency tuning for radio transceivers
EP1395072A4 (en) RADIO COMMUNICATION APPARATUS AND METHOD OF ESTIMATING RECEPTION TIME ASSOCIATED WITH
EP1738476A2 (en) System for synchronizing a portable transceiver to a network