JPS57170624A - Amplitude discriminating circuit - Google Patents

Amplitude discriminating circuit

Info

Publication number
JPS57170624A
JPS57170624A JP56055997A JP5599781A JPS57170624A JP S57170624 A JPS57170624 A JP S57170624A JP 56055997 A JP56055997 A JP 56055997A JP 5599781 A JP5599781 A JP 5599781A JP S57170624 A JPS57170624 A JP S57170624A
Authority
JP
Japan
Prior art keywords
resistance
capacitor
circuit
positive
diode
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
JP56055997A
Other languages
Japanese (ja)
Other versions
JPS6410136B2 (en
Inventor
Tatsuya Arimoto
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.)
OPTIC KK
OPUTETSUKUSU KK
Opt KK
Original Assignee
OPTIC KK
OPUTETSUKUSU KK
Opt 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 OPTIC KK, OPUTETSUKUSU KK, Opt KK filed Critical OPTIC KK
Priority to JP56055997A priority Critical patent/JPS57170624A/en
Publication of JPS57170624A publication Critical patent/JPS57170624A/en
Publication of JPS6410136B2 publication Critical patent/JPS6410136B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/26—Measuring noise figure; Measuring signal-to-noise ratio

Abstract

PURPOSE:To improve an SN ratio by providing the 1st circuit which has a longer charging time than a discharging time and integrates only a positive signal, and the 2nd circuit which integrates only a negative signal, and then connecting the integral resistance of the 1st circuit to the discharging resistance of the 2nd circuit. CONSTITUTION:A diode 3 flows a current thrugh resistances 2 and 4 to lower internal impedance. A capacitor 9 for a negative signal is biased by a resistance 5. A capacitor 10 for positive signal integration is biased by a resistance to a lower voltage than the capacitor 9 by the terminal voltage of the diode 3. The positive signal charges the capacitor 10 through the resistance 2 and diodes 3 and 8, and the capacitor 10 is discharged through the resistance. A negative signal charge the capacitor 10 negatively through the resistance 2 and diode 6, and it is discharged through the resistance 5. The input terinal of a voltage comparator 11 is connected to those capacitors 9 and 10. Consequently, amplitude discrimintion between the positive and negative signal is performed and the positive and negative signals are added to obtain an amplitude discriminating circuit which has an excellent SN ratio.
JP56055997A 1981-04-13 1981-04-13 Amplitude discriminating circuit Granted JPS57170624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56055997A JPS57170624A (en) 1981-04-13 1981-04-13 Amplitude discriminating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56055997A JPS57170624A (en) 1981-04-13 1981-04-13 Amplitude discriminating circuit

Publications (2)

Publication Number Publication Date
JPS57170624A true JPS57170624A (en) 1982-10-20
JPS6410136B2 JPS6410136B2 (en) 1989-02-21

Family

ID=13014714

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56055997A Granted JPS57170624A (en) 1981-04-13 1981-04-13 Amplitude discriminating circuit

Country Status (1)

Country Link
JP (1) JPS57170624A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49107947U (en) * 1972-12-30 1974-09-14

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49107947U (en) * 1972-12-30 1974-09-14

Also Published As

Publication number Publication date
JPS6410136B2 (en) 1989-02-21

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