DE69811084T2 - Systeme und verfahren zur automatischen frequenzhubeinstellung und -steuerung in rundfunksendern - Google Patents

Systeme und verfahren zur automatischen frequenzhubeinstellung und -steuerung in rundfunksendern

Info

Publication number
DE69811084T2
DE69811084T2 DE69811084T DE69811084T DE69811084T2 DE 69811084 T2 DE69811084 T2 DE 69811084T2 DE 69811084 T DE69811084 T DE 69811084T DE 69811084 T DE69811084 T DE 69811084T DE 69811084 T2 DE69811084 T2 DE 69811084T2
Authority
DE
Germany
Prior art keywords
systems
methods
control
automatic frequency
stroke adjustment
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE69811084T
Other languages
English (en)
Other versions
DE69811084D1 (de
Inventor
Paul Wilkinson Dent
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ericsson Inc
Original Assignee
Ericsson 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 Ericsson Inc filed Critical Ericsson Inc
Application granted granted Critical
Publication of DE69811084D1 publication Critical patent/DE69811084D1/de
Publication of DE69811084T2 publication Critical patent/DE69811084T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0966—Modifications of modulator for regulating the mean frequency using a phase locked loop modulating the reference clock
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0916—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop
    • H03C3/0925—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop applying frequency modulation at the divider in the feedback loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0916—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop
    • H03C3/0933—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop using fractional frequency division in the feedback loop of the phase locked loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0941—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation at more than one point in the loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/095—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation to the loop in front of the voltage controlled oscillator
    • 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
    • H03L7/183—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 fixed numbers or the frequency divider dividing by a fixed number
    • H03L7/187—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 fixed numbers or the frequency divider dividing by a fixed number using means for coarse tuning the voltage controlled oscillator of the loop
    • H03L7/189—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 fixed numbers or the frequency divider dividing by a fixed number using means for coarse tuning the voltage controlled oscillator of the loop comprising a D/A converter for generating a coarse tuning voltage
    • 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
DE69811084T 1997-07-31 1998-07-29 Systeme und verfahren zur automatischen frequenzhubeinstellung und -steuerung in rundfunksendern Expired - Lifetime DE69811084T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/904,131 US5983077A (en) 1997-07-31 1997-07-31 Systems and methods for automatic deviation setting and control in radio transmitters
PCT/US1998/015665 WO1999007065A1 (en) 1997-07-31 1998-07-29 Systems and methods for automatic deviation setting and control in radio transmitters

Publications (2)

Publication Number Publication Date
DE69811084D1 DE69811084D1 (de) 2003-03-06
DE69811084T2 true DE69811084T2 (de) 2003-07-17

Family

ID=25418618

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69811084T Expired - Lifetime DE69811084T2 (de) 1997-07-31 1998-07-29 Systeme und verfahren zur automatischen frequenzhubeinstellung und -steuerung in rundfunksendern

Country Status (9)

Country Link
US (1) US5983077A (de)
EP (1) EP1000461B1 (de)
JP (1) JP2001512912A (de)
CN (1) CN1265785A (de)
AU (1) AU8599098A (de)
BR (1) BR9810828A (de)
CA (1) CA2296309A1 (de)
DE (1) DE69811084T2 (de)
WO (1) WO1999007065A1 (de)

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US6993106B1 (en) 1999-08-11 2006-01-31 Broadcom Corporation Fast acquisition phase locked loop using a current DAC
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DE10313884A1 (de) * 2003-03-27 2004-12-09 Frauenhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. (FHG) Frequenzgenerator mit einer Phasenregelschleife
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Also Published As

Publication number Publication date
CA2296309A1 (en) 1999-02-11
JP2001512912A (ja) 2001-08-28
BR9810828A (pt) 2000-07-25
AU8599098A (en) 1999-02-22
US5983077A (en) 1999-11-09
EP1000461B1 (de) 2003-01-29
DE69811084D1 (de) 2003-03-06
CN1265785A (zh) 2000-09-06
EP1000461A1 (de) 2000-05-17
WO1999007065A1 (en) 1999-02-11

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