JPS56164602A - Frequency discriminating circuit - Google Patents

Frequency discriminating circuit

Info

Publication number
JPS56164602A
JPS56164602A JP6829480A JP6829480A JPS56164602A JP S56164602 A JPS56164602 A JP S56164602A JP 6829480 A JP6829480 A JP 6829480A JP 6829480 A JP6829480 A JP 6829480A JP S56164602 A JPS56164602 A JP S56164602A
Authority
JP
Japan
Prior art keywords
output
peak value
detecting circuit
fed
detecting
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
JP6829480A
Other languages
Japanese (ja)
Inventor
Kazuya Togawa
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.)
ROODOSUTAA KOGYO KK
Murata Manufacturing Co Ltd
Original Assignee
ROODOSUTAA KOGYO KK
Murata Manufacturing 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 ROODOSUTAA KOGYO KK, Murata Manufacturing Co Ltd filed Critical ROODOSUTAA KOGYO KK
Priority to JP6829480A priority Critical patent/JPS56164602A/en
Publication of JPS56164602A publication Critical patent/JPS56164602A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/34—Demodulation of angle-, frequency- or phase- modulated oscillations by means of electromechanical devices

Abstract

PURPOSE:To make the execution easy and to lower the cost, by applying the input inputted to a detecting circuit for the 1st peak value also to a detecting circuit for the 2nd peak value via a frequency selection circuit using two-terminal type piezoelectric resonator. CONSTITUTION:The output of a limiter 1 is fed to a detecting circuit 2 for the 1st peak value and a resistor 5 and a two-terminal type piezoelectric ceramic resonator 6 are connected in parallel, and the output is also fed to a detecting circuit 3 for the 2nd peak value via a frequency selection circuit consisting of capacitors 7, 8 connected between the parallel connection and ground. The output of the circuits 2, 3 is fed to a differential amplifier 4 to obtain an FM detecting output from the output side of an amplifier 4.
JP6829480A 1980-05-21 1980-05-21 Frequency discriminating circuit Pending JPS56164602A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6829480A JPS56164602A (en) 1980-05-21 1980-05-21 Frequency discriminating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6829480A JPS56164602A (en) 1980-05-21 1980-05-21 Frequency discriminating circuit

Publications (1)

Publication Number Publication Date
JPS56164602A true JPS56164602A (en) 1981-12-17

Family

ID=13369609

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6829480A Pending JPS56164602A (en) 1980-05-21 1980-05-21 Frequency discriminating circuit

Country Status (1)

Country Link
JP (1) JPS56164602A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7660650B2 (en) 2003-10-08 2010-02-09 Figla Co., Ltd. Self-propelled working robot having horizontally movable work assembly retracting in different speed based on contact sensor input on the assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7660650B2 (en) 2003-10-08 2010-02-09 Figla Co., Ltd. Self-propelled working robot having horizontally movable work assembly retracting in different speed based on contact sensor input on the assembly

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