GB2080057B - Improvements in and relating to frequency synthesizers - Google Patents

Improvements in and relating to frequency synthesizers

Info

Publication number
GB2080057B
GB2080057B GB8022857A GB8022857A GB2080057B GB 2080057 B GB2080057 B GB 2080057B GB 8022857 A GB8022857 A GB 8022857A GB 8022857 A GB8022857 A GB 8022857A GB 2080057 B GB2080057 B GB 2080057B
Authority
GB
United Kingdom
Prior art keywords
relating
frequency synthesizers
synthesizers
frequency
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
Application number
GB8022857A
Other languages
English (en)
Other versions
GB2080057A (en
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.)
Racal Dana Instruments Ltd
Original Assignee
Racal Dana Instruments 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 Racal Dana Instruments Ltd filed Critical Racal Dana Instruments Ltd
Priority to GB8022857A priority Critical patent/GB2080057B/en
Priority to US06/272,107 priority patent/US4395683A/en
Priority to DE19813124568 priority patent/DE3124568A1/de
Priority to FR8113653A priority patent/FR2486735A1/fr
Publication of GB2080057A publication Critical patent/GB2080057A/en
Application granted granted Critical
Publication of GB2080057B publication Critical patent/GB2080057B/en
Expired legal-status Critical Current

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
    • H03L7/22—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop
    • H03L7/23—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop with pulse counters or frequency dividers
GB8022857A 1980-07-12 1980-07-12 Improvements in and relating to frequency synthesizers Expired GB2080057B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB8022857A GB2080057B (en) 1980-07-12 1980-07-12 Improvements in and relating to frequency synthesizers
US06/272,107 US4395683A (en) 1980-07-12 1981-06-10 Frequency synthesizers
DE19813124568 DE3124568A1 (de) 1980-07-12 1981-06-23 Frequenzsynthesegeraet
FR8113653A FR2486735A1 (fr) 1980-07-12 1981-07-10 Synthetiseurs de frequence

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8022857A GB2080057B (en) 1980-07-12 1980-07-12 Improvements in and relating to frequency synthesizers

Publications (2)

Publication Number Publication Date
GB2080057A GB2080057A (en) 1982-01-27
GB2080057B true GB2080057B (en) 1984-11-07

Family

ID=10514722

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8022857A Expired GB2080057B (en) 1980-07-12 1980-07-12 Improvements in and relating to frequency synthesizers

Country Status (4)

Country Link
US (1) US4395683A (enExample)
DE (1) DE3124568A1 (enExample)
FR (1) FR2486735A1 (enExample)
GB (1) GB2080057B (enExample)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4626787A (en) * 1985-03-06 1986-12-02 Harris Corporation Application of the phaselock loop to frequency synthesis
US4745373A (en) * 1987-06-26 1988-05-17 Hewlett-Packard Company Method and structure for synthesizing 2C Hz from A 2A.5B Hz oscillator
US4800341A (en) * 1987-11-02 1989-01-24 Eaton Corporation Fast switching frequency synthesizer
GB2228380B (en) * 1987-11-02 1992-07-08 Eaton Corp Frequency synthesizer
DE59008177D1 (de) * 1989-07-20 1995-02-16 Siemens Ag Frequenzsynthesizer.
US4994762A (en) * 1989-11-20 1991-02-19 Motorola, Inc. Multiloop synthesizer with optimal spurious performance
DE4105566A1 (de) * 1991-02-22 1992-09-03 Rohde & Schwarz Hochfrequenzoszillator
US5343168A (en) * 1993-07-09 1994-08-30 Northrop Grumman Corporation Harmonic frequency synthesizer with adjustable frequency offset
US5878153A (en) * 1994-06-24 1999-03-02 Ford Global Technologies, Inc. Method for monitoring coating adhesion propensity based on surface morphology
US8763432B2 (en) * 2005-12-23 2014-07-01 Lg Electronics Inc. Laundry device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2810832A (en) 1956-06-27 1957-10-22 Collins Radio Co Stabilized variable oscillator system
US2886708A (en) 1956-11-23 1959-05-12 Collins Radio Co Frequency generating system
GB1015283A (en) 1961-10-02 1965-12-31 Avco Corp Frequency synthesizer for single sideband communications
US3379992A (en) * 1965-10-18 1968-04-23 Collins Radio Co Multiple frequency signal generator
GB1107909A (en) 1965-12-18 1968-03-27 Racal Comm Ltd Automatic frequency control system
DE1274201B (de) 1966-02-16 1968-08-01 Wandel & Goltermann In Kette schaltbare Quarzfrequenzdekade
GB1165325A (en) 1966-03-01 1969-09-24 Plessey Co Ltd Improvements in or relating to Spectrum Frequency Generators
US3600699A (en) * 1969-08-21 1971-08-17 Rca Corp Frequency synthesizer having a plurality of cascaded phase locked loops
FR2264422B1 (enExample) 1974-03-15 1976-12-17 Adret Electronique
FR2394919A1 (fr) 1977-06-17 1979-01-12 Adret Electronique Dispositif de synthese de frequences elevees a haute purete spectrale

Also Published As

Publication number Publication date
US4395683A (en) 1983-07-26
FR2486735A1 (fr) 1982-01-15
DE3124568A1 (de) 1982-06-24
GB2080057A (en) 1982-01-27
FR2486735B3 (enExample) 1983-05-20

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee