JPS5510210A - Signal discrimination circuit - Google Patents

Signal discrimination circuit

Info

Publication number
JPS5510210A
JPS5510210A JP8191378A JP8191378A JPS5510210A JP S5510210 A JPS5510210 A JP S5510210A JP 8191378 A JP8191378 A JP 8191378A JP 8191378 A JP8191378 A JP 8191378A JP S5510210 A JPS5510210 A JP S5510210A
Authority
JP
Japan
Prior art keywords
circuit
multiplication
signal
discrimination
discrimination circuit
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
JP8191378A
Other languages
Japanese (ja)
Other versions
JPS5853821B2 (en
Inventor
Toyotaka Machida
Kenji Kaneko
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP53081913A priority Critical patent/JPS5853821B2/en
Publication of JPS5510210A publication Critical patent/JPS5510210A/en
Publication of JPS5853821B2 publication Critical patent/JPS5853821B2/en
Expired legal-status Critical Current

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Abstract

PURPOSE: To allow the multiplier circuit of a PLL circuit to discriminate easily and definitely a signal between two modulated waves of adjacent signal frequencies.
CONSTITUTION: The 1st and 2nd signal frequencies are denoted by (f1) and (f2) respectively, and the carrier frequency is by (f0). A signal inputted to input terminal 1 is demodulated 3 to obtain signals of (f1) and (f2). The demodulated signals are inputted to frequency multiplication-by-N circuit 4 with multiplier N which is an integer satisfying the relation of f1<f0/N<f2. The outputs of the multiplication- by-N circuit are N.f1 and Nf2, which are discriminated by a comparison with (f0) by the frequency comparing discrimination circuit. To ensure this discrimination, PLL is used for multiplication-by-N circuit 4 and a phase discriminator for discrimination circuit 6.
COPYRIGHT: (C)1980,JPO&Japio
JP53081913A 1978-07-07 1978-07-07 signal identification circuit Expired JPS5853821B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53081913A JPS5853821B2 (en) 1978-07-07 1978-07-07 signal identification circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53081913A JPS5853821B2 (en) 1978-07-07 1978-07-07 signal identification circuit

Publications (2)

Publication Number Publication Date
JPS5510210A true JPS5510210A (en) 1980-01-24
JPS5853821B2 JPS5853821B2 (en) 1983-12-01

Family

ID=13759677

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53081913A Expired JPS5853821B2 (en) 1978-07-07 1978-07-07 signal identification circuit

Country Status (1)

Country Link
JP (1) JPS5853821B2 (en)

Also Published As

Publication number Publication date
JPS5853821B2 (en) 1983-12-01

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