JPS54122072A - Frequency-variation generator - Google Patents

Frequency-variation generator

Info

Publication number
JPS54122072A
JPS54122072A JP2952978A JP2952978A JPS54122072A JP S54122072 A JPS54122072 A JP S54122072A JP 2952978 A JP2952978 A JP 2952978A JP 2952978 A JP2952978 A JP 2952978A JP S54122072 A JPS54122072 A JP S54122072A
Authority
JP
Japan
Prior art keywords
transfer
frequency
input
elements
counter
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
JP2952978A
Other languages
Japanese (ja)
Inventor
Yoshio Maniwa
Yoshitoshi Yamauchi
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP2952978A priority Critical patent/JPS54122072A/en
Publication of JPS54122072A publication Critical patent/JPS54122072A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03LAUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00Automatic control of frequency or phase; Synchronisation

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

PURPOSE:To obtain a unit which causes an original input signal with its frequency fixed to vary in frequency artificially by a simple electronic device. CONSTITUTION:Charge coupling elements CCD1 and CCD2 as an example of a N-stage analog transfer element are provided in parallel and between those transfer elements and input and output signal terminals, four switches SWN1, and SWN2 and SWT1 and SWT2 are operated reversely to connect either transfer element to input and output terminals respectively. Further, this unit is equipped with oscillator WCO which generates write clock pulse to transfer elements, N-scale counter CT1, a flip-flop, N/4n-scale counter CT2, octal counter CT3, counting decoder CDR, octal decoder DEC, voltage-control variable frequency oscillator VCO, and logical operation LGC for write and read clock signals. Then, either time for the inputting or outputting to or from transfer elements is divided uniformly and a clock pulse of the variable frequency needed for the fixed signal transfer within each divided- time width is obtained.
JP2952978A 1978-03-15 1978-03-15 Frequency-variation generator Pending JPS54122072A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2952978A JPS54122072A (en) 1978-03-15 1978-03-15 Frequency-variation generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2952978A JPS54122072A (en) 1978-03-15 1978-03-15 Frequency-variation generator

Publications (1)

Publication Number Publication Date
JPS54122072A true JPS54122072A (en) 1979-09-21

Family

ID=12278625

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2952978A Pending JPS54122072A (en) 1978-03-15 1978-03-15 Frequency-variation generator

Country Status (1)

Country Link
JP (1) JPS54122072A (en)

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