GB1556392A - Frequency modulated signal generators - Google Patents

Frequency modulated signal generators

Info

Publication number
GB1556392A
GB1556392A GB7648/78A GB764878A GB1556392A GB 1556392 A GB1556392 A GB 1556392A GB 7648/78 A GB7648/78 A GB 7648/78A GB 764878 A GB764878 A GB 764878A GB 1556392 A GB1556392 A GB 1556392A
Authority
GB
United Kingdom
Prior art keywords
modulated signal
frequency modulated
signal generators
generators
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
GB7648/78A
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.)
Farnell Instruments Ltd
Original Assignee
Farnell 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 Farnell Instruments Ltd filed Critical Farnell Instruments Ltd
Priority to GB7648/78A priority Critical patent/GB1556392A/en
Publication of GB1556392A publication Critical patent/GB1556392A/en
Expired 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
    • H03C3/0991—Modifications of modulator for regulating the mean frequency using a phase locked loop including calibration means or calibration methods
    • 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
    • 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
GB7648/78A 1978-02-27 1978-02-27 Frequency modulated signal generators Expired GB1556392A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7648/78A GB1556392A (en) 1978-02-27 1978-02-27 Frequency modulated signal generators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7648/78A GB1556392A (en) 1978-02-27 1978-02-27 Frequency modulated signal generators

Publications (1)

Publication Number Publication Date
GB1556392A true GB1556392A (en) 1979-11-21

Family

ID=9837135

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7648/78A Expired GB1556392A (en) 1978-02-27 1978-02-27 Frequency modulated signal generators

Country Status (1)

Country Link
GB (1) GB1556392A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0153868A2 (en) * 1984-02-29 1985-09-04 Hewlett-Packard Company FM calibration in a phase-locked loop
GB2196495A (en) * 1986-09-12 1988-04-27 Matsushita Electric Ind Co Ltd Modulation sensitivity correction circuit for voltage-controlled oscillator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0153868A2 (en) * 1984-02-29 1985-09-04 Hewlett-Packard Company FM calibration in a phase-locked loop
US4573026A (en) * 1984-02-29 1986-02-25 Hewlett-Packard Company FM Modulator phase-locked loop with FM calibration
EP0153868A3 (en) * 1984-02-29 1987-05-13 Hewlett-Packard Company Fm calibration in a phase-locked loop
GB2196495A (en) * 1986-09-12 1988-04-27 Matsushita Electric Ind Co Ltd Modulation sensitivity correction circuit for voltage-controlled oscillator
US4816782A (en) * 1986-09-12 1989-03-28 Matsushita Electric Industrial Co., Ltd. Modulation sensitivity correction circuit for voltage-controlled oscillator
GB2196495B (en) * 1986-09-12 1991-01-09 Matsushita Electric Ind Co Ltd Modulation sensitivity correction circuit for voltage-controlled oscillator

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee