GB2019145B - Frequency modulators - Google Patents

Frequency modulators

Info

Publication number
GB2019145B
GB2019145B GB7918186A GB7918186A GB2019145B GB 2019145 B GB2019145 B GB 2019145B GB 7918186 A GB7918186 A GB 7918186A GB 7918186 A GB7918186 A GB 7918186A GB 2019145 B GB2019145 B GB 2019145B
Authority
GB
United Kingdom
Prior art keywords
frequency modulators
modulators
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
GB7918186A
Other versions
GB2019145A (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.)
Plessey Co Ltd
Original Assignee
Plessey Co 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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB7918186A priority Critical patent/GB2019145B/en
Publication of GB2019145A publication Critical patent/GB2019145A/en
Application granted granted Critical
Publication of GB2019145B publication Critical patent/GB2019145B/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
    • H03C3/0958—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
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/08—Modifications of modulator to linearise modulation, e.g. by feedback, and clearly applicable to more than one type of modulator
    • 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
GB7918186A 1978-03-10 1979-05-24 Frequency modulators Expired GB2019145B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7918186A GB2019145B (en) 1978-03-10 1979-05-24 Frequency modulators

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB952078 1978-03-10
GB7918186A GB2019145B (en) 1978-03-10 1979-05-24 Frequency modulators

Publications (2)

Publication Number Publication Date
GB2019145A GB2019145A (en) 1979-10-24
GB2019145B true GB2019145B (en) 1982-07-21

Family

ID=26242990

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7918186A Expired GB2019145B (en) 1978-03-10 1979-05-24 Frequency modulators

Country Status (1)

Country Link
GB (1) GB2019145B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2568430B1 (en) * 1984-07-27 1986-11-07 Alcatel Thomson Faisceaux HOMODYNE RECEIVING TRANSCEIVER.
FR2616285B1 (en) * 1987-06-05 1994-05-06 Thomson Semiconducteurs DEVICE FOR ADJUSTING THE MINIMUM AND MAXIMUM FREQUENCIES OF A FREQUENCY MODULATED VIDEO SIGNAL
FR2660814A1 (en) * 1990-04-06 1991-10-11 Schlumberger Ind Sa Frequency-summing circuit
EP1550205A2 (en) * 2002-10-08 2005-07-06 M/A-Com, Inc. Apparatus and methods for wideband signal processing
US7545865B2 (en) 2002-12-03 2009-06-09 M/A-Com, Inc. Apparatus, methods and articles of manufacture for wideband signal processing

Also Published As

Publication number Publication date
GB2019145A (en) 1979-10-24

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Legal Events

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