JPS5592041A - Frequency correction unit - Google Patents

Frequency correction unit

Info

Publication number
JPS5592041A
JPS5592041A JP16399078A JP16399078A JPS5592041A JP S5592041 A JPS5592041 A JP S5592041A JP 16399078 A JP16399078 A JP 16399078A JP 16399078 A JP16399078 A JP 16399078A JP S5592041 A JPS5592041 A JP S5592041A
Authority
JP
Japan
Prior art keywords
circuit
output
frequencies
frequency
ambient temperature
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
JP16399078A
Other languages
Japanese (ja)
Other versions
JPS59176B2 (en
Inventor
Tetsuo Konno
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.)
Seikosha KK
Original Assignee
Seikosha KK
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 Seikosha KK filed Critical Seikosha KK
Priority to JP53163990A priority Critical patent/JPS59176B2/en
Publication of JPS5592041A publication Critical patent/JPS5592041A/en
Publication of JPS59176B2 publication Critical patent/JPS59176B2/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

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

PURPOSE:To correct frequencies in a wide range and correct slippage of frequencies dependent upon temperature change also by detecting an ambient temperature through a selection circuit using a gate, a CR oscillator, etc., and by co-operating output data and a frequency divider circuit. CONSTITUTION:Pulse generation circuit OSC receives the influence of an ambient temperature to change the output frequency, and memory circuits M1...M7 store previously respective data corresponding to frequencies of difference between respective output frequencies in temperatures and a target frequency. Under an uncorrection state, control circuit C1 which generates the output from circuit OSC is provided, and the output frequency of circuit C1 is lowered through frequency divider circuits D2 and D3. Then, a selection circuit consisting of gates G1 and G2, CR oscillator A using a thermistor, etc., detects an ambient temperature, and by co-operations of selected data and outputs of circuits D1 and D2, control circuit C2 corrects the output frequency of circuit C1.
JP53163990A 1978-12-29 1978-12-29 frequency correction device Expired JPS59176B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53163990A JPS59176B2 (en) 1978-12-29 1978-12-29 frequency correction device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53163990A JPS59176B2 (en) 1978-12-29 1978-12-29 frequency correction device

Publications (2)

Publication Number Publication Date
JPS5592041A true JPS5592041A (en) 1980-07-12
JPS59176B2 JPS59176B2 (en) 1984-01-05

Family

ID=15784656

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53163990A Expired JPS59176B2 (en) 1978-12-29 1978-12-29 frequency correction device

Country Status (1)

Country Link
JP (1) JPS59176B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5799039A (en) * 1980-12-11 1982-06-19 Seikosha Co Ltd Temperature compensator for output frequency
JPS6285030U (en) * 1985-11-18 1987-05-30
US7554415B2 (en) 2006-01-17 2009-06-30 Denso Corporation Microcomputer including a CR oscillator circuit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0315585U (en) * 1989-06-27 1991-02-15

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5799039A (en) * 1980-12-11 1982-06-19 Seikosha Co Ltd Temperature compensator for output frequency
JPS6285030U (en) * 1985-11-18 1987-05-30
US7554415B2 (en) 2006-01-17 2009-06-30 Denso Corporation Microcomputer including a CR oscillator circuit

Also Published As

Publication number Publication date
JPS59176B2 (en) 1984-01-05

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