JPS53126249A - Automatic frequency controller - Google Patents

Automatic frequency controller

Info

Publication number
JPS53126249A
JPS53126249A JP4039277A JP4039277A JPS53126249A JP S53126249 A JPS53126249 A JP S53126249A JP 4039277 A JP4039277 A JP 4039277A JP 4039277 A JP4039277 A JP 4039277A JP S53126249 A JPS53126249 A JP S53126249A
Authority
JP
Japan
Prior art keywords
automatic frequency
frequency controller
frequency
depend
magnetic field
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.)
Pending
Application number
JP4039277A
Other languages
Japanese (ja)
Inventor
Toshinori Murata
Shigeo Matsuura
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4039277A priority Critical patent/JPS53126249A/en
Publication of JPS53126249A publication Critical patent/JPS53126249A/en
Pending 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
    • H03L7/02—Automatic control of frequency or phase; Synchronisation using a frequency discriminator comprising a passive frequency-determining element

Abstract

PURPOSE:To obtain the automatic frequency controller which will not malfunction due to a sound frequency, will operate stably even in a weak magnetic field and will not depend upon RF signals, by directly controlling a local oscillation frequency making use of the error voltage generated corresponding to the difference in phase.
JP4039277A 1977-04-11 1977-04-11 Automatic frequency controller Pending JPS53126249A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4039277A JPS53126249A (en) 1977-04-11 1977-04-11 Automatic frequency controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4039277A JPS53126249A (en) 1977-04-11 1977-04-11 Automatic frequency controller

Publications (1)

Publication Number Publication Date
JPS53126249A true JPS53126249A (en) 1978-11-04

Family

ID=12579379

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4039277A Pending JPS53126249A (en) 1977-04-11 1977-04-11 Automatic frequency controller

Country Status (1)

Country Link
JP (1) JPS53126249A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62281502A (en) * 1986-05-30 1987-12-07 Masatoshi Suyama Digital compensating oscillator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62281502A (en) * 1986-05-30 1987-12-07 Masatoshi Suyama Digital compensating oscillator
JPH0525407B2 (en) * 1986-05-30 1993-04-12 Masatoshi Suyama

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