JPS54146567A - Frequency-voltage converter circuit - Google Patents

Frequency-voltage converter circuit

Info

Publication number
JPS54146567A
JPS54146567A JP5464978A JP5464978A JPS54146567A JP S54146567 A JPS54146567 A JP S54146567A JP 5464978 A JP5464978 A JP 5464978A JP 5464978 A JP5464978 A JP 5464978A JP S54146567 A JPS54146567 A JP S54146567A
Authority
JP
Japan
Prior art keywords
period
signal
voltage
disturbance
detected
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
JP5464978A
Other languages
Japanese (ja)
Other versions
JPS6016638B2 (en
Inventor
Munetoshi Kajihata
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.)
Nippon Gakki Co Ltd
Original Assignee
Nippon Gakki 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 Nippon Gakki Co Ltd filed Critical Nippon Gakki Co Ltd
Priority to JP53054649A priority Critical patent/JPS6016638B2/en
Publication of JPS54146567A publication Critical patent/JPS54146567A/en
Publication of JPS6016638B2 publication Critical patent/JPS6016638B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Electrophonic Musical Instruments (AREA)

Abstract

PURPOSE: To obtain the high acoustic voltage featuring a high accuracy and stability by providing the means to detect the period disturbance of the input signal and then inhibiting the take-in holding action of the conversion voltage in case the period disturbance is detected.
CONSTITUTION: Basic wave-rectangular wave converter circuit 12 generates rectangular wave signal (f) featuring a period corresponding to the period of the basic wave plus signal (g) obtained by giving 1/2-division to signal f with chord vibration signal (a) used as the input, and then supplies these signals to f/V converter circuit 14. Circuit 14 generates at voltage generation part 14A period correspondence voltage (i) fuaturing the amplidude corresponding to the period of signal (g) via input signals (f) and (g), and then supplies the signal to voltage memory part 14B. On the other hand, the system including integrating part 14C, comparison part 14D and control part 14E generates control signal (q) indicating that some disturbance is detected in the period of signal (g). In case no disturbance is detected in the period of(g), gate G3 is opened; while G3 is closed when the disturbance is detected respectively. Thus, output 14S of circuit 14 contains the voltage corresponding to the period disturbance, and accordingly the voltage output corresponding to the basic wave period can be obtained. And the miscontrol can be prevented for the vairable frequency oscillator which is controlled by output 14S.
COPYRIGHT: (C)1979,JPO&Japio
JP53054649A 1978-05-09 1978-05-09 Frequency-voltage conversion circuit Expired JPS6016638B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53054649A JPS6016638B2 (en) 1978-05-09 1978-05-09 Frequency-voltage conversion circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53054649A JPS6016638B2 (en) 1978-05-09 1978-05-09 Frequency-voltage conversion circuit

Publications (2)

Publication Number Publication Date
JPS54146567A true JPS54146567A (en) 1979-11-15
JPS6016638B2 JPS6016638B2 (en) 1985-04-26

Family

ID=12976618

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53054649A Expired JPS6016638B2 (en) 1978-05-09 1978-05-09 Frequency-voltage conversion circuit

Country Status (1)

Country Link
JP (1) JPS6016638B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5774499U (en) * 1980-10-27 1982-05-08
JPS5774498U (en) * 1980-10-24 1982-05-08
JPS5988796A (en) * 1982-11-15 1984-05-22 パイオニア株式会社 Signal generator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62127047U (en) * 1986-02-04 1987-08-12

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5774498U (en) * 1980-10-24 1982-05-08
JPS5774499U (en) * 1980-10-27 1982-05-08
JPS5988796A (en) * 1982-11-15 1984-05-22 パイオニア株式会社 Signal generator

Also Published As

Publication number Publication date
JPS6016638B2 (en) 1985-04-26

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