JPS5623024A - Frequency multiplication circuit - Google Patents

Frequency multiplication circuit

Info

Publication number
JPS5623024A
JPS5623024A JP9871879A JP9871879A JPS5623024A JP S5623024 A JPS5623024 A JP S5623024A JP 9871879 A JP9871879 A JP 9871879A JP 9871879 A JP9871879 A JP 9871879A JP S5623024 A JPS5623024 A JP S5623024A
Authority
JP
Japan
Prior art keywords
counter
output
signal
circuit
value
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
JP9871879A
Other languages
Japanese (ja)
Other versions
JPH028492B2 (en
Inventor
Noboru Azusawa
Kenzo Kamiyama
Yasunari Nomoto
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 JP9871879A priority Critical patent/JPS5623024A/en
Publication of JPS5623024A publication Critical patent/JPS5623024A/en
Publication of JPH028492B2 publication Critical patent/JPH028492B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Manipulation Of Pulses (AREA)

Abstract

PURPOSE:To obtain the frequency multiplication circuit in which accurate n-times frequency can be obtained, by compensating the value of the deciaml point or below of the measurement value of the period of input pulse. CONSTITUTION:The timing circuit 6 producing the set signal S and reset signal R at the leading of the input signal fi resets the 1/n frequency divider 7 and the up- counter 3 with the signal R. After that, the counter 3 counts the 1/n output of the output of the high frequency oscillator 1. The count value of the counter 3, e.g. D is set to the down-counter 5 via the register 9 with up-counter with the signal S from the circuit 6. This counter 5 produces output every time the output of the high frequency oscillator 1 is counted by D. The correction circuit 8 switches the set value to the down-counter 5 to D+1 according to the error component of the frequency divider 7 and controls the register 9 so that the output of the counter 5 can be output accurately by (n) pulses ar one period of the input signal fi.
JP9871879A 1979-08-03 1979-08-03 Frequency multiplication circuit Granted JPS5623024A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9871879A JPS5623024A (en) 1979-08-03 1979-08-03 Frequency multiplication circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9871879A JPS5623024A (en) 1979-08-03 1979-08-03 Frequency multiplication circuit

Publications (2)

Publication Number Publication Date
JPS5623024A true JPS5623024A (en) 1981-03-04
JPH028492B2 JPH028492B2 (en) 1990-02-26

Family

ID=14227294

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9871879A Granted JPS5623024A (en) 1979-08-03 1979-08-03 Frequency multiplication circuit

Country Status (1)

Country Link
JP (1) JPS5623024A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58101907U (en) * 1981-12-30 1983-07-11 大和ハウス工業株式会社 partition
JPS60201719A (en) * 1984-03-27 1985-10-12 Oval Eng Co Ltd Frequency multiplying circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52122733A (en) * 1976-04-07 1977-10-15 Toshiba Corp Pulse line converter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52122733A (en) * 1976-04-07 1977-10-15 Toshiba Corp Pulse line converter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58101907U (en) * 1981-12-30 1983-07-11 大和ハウス工業株式会社 partition
JPS60201719A (en) * 1984-03-27 1985-10-12 Oval Eng Co Ltd Frequency multiplying circuit

Also Published As

Publication number Publication date
JPH028492B2 (en) 1990-02-26

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