JPS5731209A - Demodulator of fm signal - Google Patents

Demodulator of fm signal

Info

Publication number
JPS5731209A
JPS5731209A JP10612180A JP10612180A JPS5731209A JP S5731209 A JPS5731209 A JP S5731209A JP 10612180 A JP10612180 A JP 10612180A JP 10612180 A JP10612180 A JP 10612180A JP S5731209 A JPS5731209 A JP S5731209A
Authority
JP
Japan
Prior art keywords
signal
output
filter
frequency
supplied
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
JP10612180A
Other languages
Japanese (ja)
Inventor
Osamu Shizutani
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP10612180A priority Critical patent/JPS5731209A/en
Publication of JPS5731209A publication Critical patent/JPS5731209A/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
    • H03D3/001—Details of arrangements applicable to more than one type of frequency demodulator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Details Of Television Systems (AREA)

Abstract

PURPOSE:To realize an FM demodulation of a wide-band signal with no distortion, by applying the output of an amplitude limiter to a frequency discriminator via a filter that prevents a signal having a double frequency band to an input signal. CONSTITUTION:A signal received an FM demodulation by a video signal is supplied through an input terminal 1 to an intermediate frequency amplifier 3 via a band-pass filter 2 to be led to an amplitude limiter 4. The upper and lower parts of a signal wave are clipped, and the output of the limiter containing a higher harmonic component is supplied to a filter 9 that prevents the 2nd higher harmonic component. The output of the filter 9 is supplied to a frequency discriminator 6 and then extracted through an output terminal 8 in the form of a video signal component after passing through a low-pass filter 7. The components higher than the 3rd higher harmonic wave of the output of the limiter 4 are sufficiently away from the signal frequency and accordingly suppressed enough through a resonance circuit within the discriminator 6.
JP10612180A 1980-07-31 1980-07-31 Demodulator of fm signal Pending JPS5731209A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10612180A JPS5731209A (en) 1980-07-31 1980-07-31 Demodulator of fm signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10612180A JPS5731209A (en) 1980-07-31 1980-07-31 Demodulator of fm signal

Publications (1)

Publication Number Publication Date
JPS5731209A true JPS5731209A (en) 1982-02-19

Family

ID=14425603

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10612180A Pending JPS5731209A (en) 1980-07-31 1980-07-31 Demodulator of fm signal

Country Status (1)

Country Link
JP (1) JPS5731209A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54124956A (en) * 1978-03-22 1979-09-28 Noboru Denki Seisakushiyo Kk Zone division limiter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54124956A (en) * 1978-03-22 1979-09-28 Noboru Denki Seisakushiyo Kk Zone division limiter

Similar Documents

Publication Publication Date Title
JPS55107365A (en) Digital signal reception system
JPS5776910A (en) Ghost rejecting device
JPS5717241A (en) Dynamic emphasis circuit
JPS5731209A (en) Demodulator of fm signal
GB1518969A (en) Circuit for processing a colour television signal prior to magnetic recording and corresponding restoring circuit
JPS5765902A (en) Fm demodulating circuit
JPS5511602A (en) Automatic amplitude phase equalization system for fm circuit
JPS54157018A (en) Fm receiver
JPS57155866A (en) Demodulation circuit for intermediate frequency signal
JPS5664508A (en) Low-band compensating circuit
JPS6478007A (en) Fm demodulation circuit
JPS5782213A (en) Demodulating system for fm video signal
JPS56103523A (en) Active filter circuit
JPS57104392A (en) Video signal recording and reproducing device
SU469209A1 (en) Band filter
JPS56136047A (en) Eliminating circuit for energy diffused signal
JPS573476A (en) Multiplex demodulation method
JPS55134511A (en) Pulse-width modulating-amplifying circuit
JPS5596735A (en) Television receiving unit
JPS5571329A (en) Fm demodulator
JPS54157017A (en) Fm signal receiving circuit
JPS56169911A (en) Frequency discriminator
JPS57186842A (en) Demodulator of frequency-modulated receiver
JPS5527766A (en) Interference wave eliminating circuit
JPS6424611A (en) Fm demodulation circuit