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JPS52150924A - Frequency control unit - Google Patents

Frequency control unit

Info

Publication number
JPS52150924A
JPS52150924A JP6811376A JP6811376A JPS52150924A JP S52150924 A JPS52150924 A JP S52150924A JP 6811376 A JP6811376 A JP 6811376A JP 6811376 A JP6811376 A JP 6811376A JP S52150924 A JPS52150924 A JP S52150924A
Authority
JP
Japan
Prior art keywords
control unit
frequency control
frequency
pulse
secure
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.)
Granted
Application number
JP6811376A
Other languages
Japanese (ja)
Other versions
JPS579535B2 (en
Inventor
Masaaki Maekawa
Eiji Yamazaki
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP6811376A priority Critical patent/JPS52150924A/en
Publication of JPS52150924A publication Critical patent/JPS52150924A/en
Publication of JPS579535B2 publication Critical patent/JPS579535B2/ja
Granted 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
    • H03L7/18—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
    • H03L7/181—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 numerical count result being used for locking the loop, the counter counting during fixed time intervals

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

PURPOSE:To secure a control of the frequency drift for the local oscillator by reading the pulse of the number equivalent to the oscillation frequency through the frequency counter.
JP6811376A 1976-06-09 1976-06-09 Frequency control unit Granted JPS52150924A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6811376A JPS52150924A (en) 1976-06-09 1976-06-09 Frequency control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6811376A JPS52150924A (en) 1976-06-09 1976-06-09 Frequency control unit

Publications (2)

Publication Number Publication Date
JPS52150924A true JPS52150924A (en) 1977-12-15
JPS579535B2 JPS579535B2 (en) 1982-02-22

Family

ID=13364352

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6811376A Granted JPS52150924A (en) 1976-06-09 1976-06-09 Frequency control unit

Country Status (1)

Country Link
JP (1) JPS52150924A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61133339U (en) * 1985-02-09 1986-08-20

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4871868A (en) * 1971-12-22 1973-09-28
JPS4871867A (en) * 1971-12-22 1973-09-28
JPS50155948U (en) * 1974-06-11 1975-12-24
JPS5111353A (en) * 1974-07-18 1976-01-29 Nippon Technical

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4871868A (en) * 1971-12-22 1973-09-28
JPS4871867A (en) * 1971-12-22 1973-09-28
JPS50155948U (en) * 1974-06-11 1975-12-24
JPS5111353A (en) * 1974-07-18 1976-01-29 Nippon Technical

Also Published As

Publication number Publication date
JPS579535B2 (en) 1982-02-22

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