JPS5967012U - Ｆｍ復調器 - Google Patents

Ｆｍ復調器

Info

Publication number
JPS5967012U
JPS5967012U JP1982161139U JP16113982U JPS5967012U JP S5967012 U JPS5967012 U JP S5967012U JP 1982161139 U JP1982161139 U JP 1982161139U JP 16113982 U JP16113982 U JP 16113982U JP S5967012 U JPS5967012 U JP S5967012U
Authority
JP
Japan
Prior art keywords
demodulator
vco
pass filter
phase comparator
low
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
JP1982161139U
Other languages
English (en)
Other versions
JPH0218602Y2 (ja
Inventor
通範 内藤
茂 宮本
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.)
Kenwood KK
Original Assignee
Kenwood 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 Kenwood KK filed Critical Kenwood KK
Priority to JP1982161139U priority Critical patent/JPS5967012U/ja
Priority to US06/543,027 priority patent/US4612511A/en
Publication of JPS5967012U publication Critical patent/JPS5967012U/ja
Application granted granted Critical
Publication of JPH0218602Y2 publication Critical patent/JPH0218602Y2/ja
Granted 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
    • H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
    • H03D3/24—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits
    • H03D3/241—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits the oscillator being part of a phase locked loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/006—Functional aspects of oscillators
    • H03B2200/007—Generation of oscillations based on harmonic frequencies, e.g. overtone oscillators
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/006—Functional aspects of oscillators
    • H03B2200/0092—Measures to linearise or reduce distortion of oscillator characteristics

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (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。

Description

【図面の簡単な説明】
第１図は従来のＦＭ復調器を示すブロック図、第２図乃
至第４図は本考案に係るＦＭ復調器の実施例である。 １：位相比較器、２：ＶＣＯｌＤ：バリキャップダイオ
ード、３：バリキャップダイオードの入力端、　　　・
４：増幅器、５：補償回路。

Claims (1)

    【実用新案登録請求の範囲】
  1. 位相比較器と、ローパスコフィルタと、バリキャップダ
    イオードを含むＶＣＯとを有し、入力信号を前記位相比
    較器へ印加し、かつ前記ローパスフィルタより復調出力
    信号を取り出すＦＭ復調器において：復調出力端と前記
    ＶＣＯとの間に非線形素子より成゛る補償回路を接続し
    、前記バリキャップダイオードにより生ずる前記出力信
    号中の２次歪を打消した事を特徴とするＦＭ復調器。
JP1982161139U 1982-10-26 1982-10-26 Ｆｍ復調器 Granted JPS5967012U (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1982161139U JPS5967012U (ja) 1982-10-26 1982-10-26 Ｆｍ復調器
US06/543,027 US4612511A (en) 1982-10-26 1983-10-18 FM demodulator including PLL and improved circuitry for eliminating distortion in the output thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1982161139U JPS5967012U (ja) 1982-10-26 1982-10-26 Ｆｍ復調器

Publications (2)

Publication Number Publication Date
JPS5967012U true JPS5967012U (ja) 1984-05-07
JPH0218602Y2 JPH0218602Y2 (ja) 1990-05-24

Family

ID=15729330

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1982161139U Granted JPS5967012U (ja) 1982-10-26 1982-10-26 Ｆｍ復調器

Country Status (2)

Country Link
US (1) US4612511A (ja)
JP (1) JPS5967012U (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0772289A1 (fr) * 1995-10-31 1997-05-07 Philips Composants Et Semiconducteurs Dispositif, de type boucle à verrouillage de phase, pour la démodulation d'un signal modulé en fréquence
US6223061B1 (en) * 1997-07-25 2001-04-24 Cleveland Medical Devices Inc. Apparatus for low power radio communications

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56164633U (ja) * 1980-04-30 1981-12-07
JPS5731561U (ja) * 1980-07-31 1982-02-19

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915134A1 (de) * 1979-04-12 1980-10-16 Siemens Ag Steuerbare oszillatoranordnung
DE3114595A1 (de) * 1981-04-10 1982-10-28 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig & Co KG, 8510 Fürth "schaltungsanordnung fuer einen fm-demodulator"

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56164633U (ja) * 1980-04-30 1981-12-07
JPS5731561U (ja) * 1980-07-31 1982-02-19

Also Published As

Publication number Publication date
US4612511A (en) 1986-09-16
JPH0218602Y2 (ja) 1990-05-24

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