JPS59114611U - FM demodulation circuit - Google Patents

FM demodulation circuit

Info

Publication number
JPS59114611U
JPS59114611U JP681883U JP681883U JPS59114611U JP S59114611 U JPS59114611 U JP S59114611U JP 681883 U JP681883 U JP 681883U JP 681883 U JP681883 U JP 681883U JP S59114611 U JPS59114611 U JP S59114611U
Authority
JP
Japan
Prior art keywords
demodulation circuit
pulse width
monostable multivibrator
output
input signal
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
JP681883U
Other languages
Japanese (ja)
Other versions
JPH0119453Y2 (en
Inventor
正志 佐土原
Original Assignee
三洋電機株式会社
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 三洋電機株式会社 filed Critical 三洋電機株式会社
Priority to JP681883U priority Critical patent/JPS59114611U/en
Publication of JPS59114611U publication Critical patent/JPS59114611U/en
Application granted granted Critical
Publication of JPH0119453Y2 publication Critical patent/JPH0119453Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来のＦＭ復調回路の一実施例、第２図は従来
のＦＭ復調回路のタイミングチャート、第３図ａ　”　
ｅは本考案の一実施例、第４図ａ　−ｅは本考案の一実
施例のタイミングチャート、第５図は従来例と本考案の
一実施例との周波数と出力波形との関係を示したグラフ
である。Figure 1 is an example of a conventional FM demodulation circuit, Figure 2 is a timing chart of a conventional FM demodulation circuit, and Figure 3 is a.
e shows an embodiment of the present invention, Figures 4a-e show timing charts of an embodiment of the present invention, and Figure 5 shows the relationship between frequency and output waveform of a conventional example and an embodiment of the present invention. This is a graph.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] パルスカウントによるＦＭ復調回路において、出力パル
ス幅が入力信号のパルス幅よりも長い第１のモノステー
ブルマルチバイブレータと、該入力信号の反転信号を入
力し、該第１のモノステーブルマルチバイブレータと同
一出力パルス幅を有する第２のモノステーブルマルチバ
イブレークと、前記第１及び第２のモノステーブルマル
チバイブレータの出力を接続した論理積と、該論理積の
出力に接続した低域Ｐ波器とより成るＦＭ復調回路。In an FM demodulation circuit using pulse counting, a first monostable multivibrator whose output pulse width is longer than the pulse width of an input signal, and an inverted signal of the input signal are input, and the output is the same as that of the first monostable multivibrator. FM consisting of a second monostable multivibrator having a pulse width, an AND connecting the outputs of the first and second monostable multivibrators, and a low-frequency P wave generator connected to the output of the AND. Demodulation circuit.
JP681883U 1983-01-20 1983-01-20 FM demodulation circuit Granted JPS59114611U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP681883U JPS59114611U (en) 1983-01-20 1983-01-20 FM demodulation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP681883U JPS59114611U (en) 1983-01-20 1983-01-20 FM demodulation circuit

Publications (2)

Publication Number Publication Date
JPS59114611U true JPS59114611U (en) 1984-08-02
JPH0119453Y2 JPH0119453Y2 (en) 1989-06-06

Family

ID=30138359

Family Applications (1)

Application Number Title Priority Date Filing Date
JP681883U Granted JPS59114611U (en) 1983-01-20 1983-01-20 FM demodulation circuit

Country Status (1)

Country Link
JP (1) JPS59114611U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0292003A (en) * 1988-09-28 1990-03-30 Ando Electric Co Ltd Circuit for eliminating transient phenomenon in pulse count detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0292003A (en) * 1988-09-28 1990-03-30 Ando Electric Co Ltd Circuit for eliminating transient phenomenon in pulse count detector

Also Published As

Publication number Publication date
JPH0119453Y2 (en) 1989-06-06

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