JPS57500761A - - Google Patents

Info

Publication number
JPS57500761A
JPS57500761A JP81501281A JP50128181A JPS57500761A JP S57500761 A JPS57500761 A JP S57500761A JP 81501281 A JP81501281 A JP 81501281A JP 50128181 A JP50128181 A JP 50128181A JP S57500761 A JPS57500761 A JP S57500761A
Authority
JP
Japan
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.)
Pending
Application number
JP81501281A
Other languages
Japanese (ja)
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 filed Critical
Publication of JPS57500761A publication Critical patent/JPS57500761A/ja
Pending 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
    • H03C3/0983—Modifications of modulator for regulating the mean frequency using a phase locked loop containing in the loop a mixer other than for phase detection
    • 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
    • H03C3/0941—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
    • H03C3/0958—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation by varying the characteristics 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
    • H03L7/185—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 a mixer in the loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C2200/00—Indexing scheme relating to details of modulators or modulation methods covered by H03C
    • H03C2200/0037—Functional aspects of modulators
    • H03C2200/005—Modulation sensitivity
    • H03C2200/0054—Filtering of the input modulating signal for obtaining a constant sensitivity of frequency modulation
JP81501281A 1980-05-01 1980-05-01 Pending JPS57500761A (ko)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1980/000501 WO1981003250A1 (en) 1980-05-01 1980-05-01 Arrangement for angle modulating a phase-locked loop frequency synthesizer

Publications (1)

Publication Number Publication Date
JPS57500761A true JPS57500761A (ko) 1982-04-30

Family

ID=22154314

Family Applications (1)

Application Number Title Priority Date Filing Date
JP81501281A Pending JPS57500761A (ko) 1980-05-01 1980-05-01

Country Status (6)

Country Link
EP (1) EP0050124A4 (ko)
JP (1) JPS57500761A (ko)
CA (1) CA1175922A (ko)
DE (1) DE50124T1 (ko)
DK (1) DK578981A (ko)
WO (1) WO1981003250A1 (ko)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58105631A (ja) * 1981-12-17 1983-06-23 Nec Corp 周波数変調送信機
GB2140234B (en) * 1983-05-17 1986-07-23 Marconi Instruments Ltd Signal generators
US4755774A (en) * 1985-07-15 1988-07-05 Motorola Inc. Two-port synthesizer modulation system employing an improved reference phase modulator
DE8712331U1 (ko) * 1986-09-26 1988-01-28 Flowtec Ag, Reinach, Basel, Ch
DE19601013A1 (de) * 1996-01-13 1997-07-17 Bosch Gmbh Robert Verfahren und Anordnung zur Frequenzmodulation eines hochfrequenten Signals
FR2798019B1 (fr) * 1999-08-26 2002-08-16 Cit Alcatel Synthetiseur de frequences a boucle de phase
GB2389252B (en) * 2002-05-31 2006-09-27 Zarlink Semiconductor Ltd A frequency modulation system & method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3593182A (en) * 1969-04-16 1971-07-13 Motorola Inc Afc system for microwave energy sources
US3622913A (en) * 1969-10-29 1971-11-23 Rca Corp Frequency modulated phase-locked oscillator having a low- and high-frequency response
US3805192A (en) * 1972-08-09 1974-04-16 Electronic Communications Frequency modulator-variable frequency generator
DE2914814A1 (de) * 1979-04-11 1980-10-30 Siemens Ag Frequenzmodulator

Also Published As

Publication number Publication date
WO1981003250A1 (en) 1981-11-12
EP0050124A4 (en) 1982-09-03
DE50124T1 (de) 1983-01-05
DK578981A (da) 1981-12-28
EP0050124A1 (en) 1982-04-28
CA1175922A (en) 1984-10-09

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