JPS59140510U - Television receiver audio signal demodulation circuit - Google Patents

Television receiver audio signal demodulation circuit

Info

Publication number
JPS59140510U
JPS59140510U JP3375983U JP3375983U JPS59140510U JP S59140510 U JPS59140510 U JP S59140510U JP 3375983 U JP3375983 U JP 3375983U JP 3375983 U JP3375983 U JP 3375983U JP S59140510 U JPS59140510 U JP S59140510U
Authority
JP
Japan
Prior art keywords
audio signal
television receiver
demodulation circuit
signal demodulation
receiver audio
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
JP3375983U
Other languages
Japanese (ja)
Other versions
JPH0224304Y2 (en
Inventor
平井　一
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 JP3375983U priority Critical patent/JPS59140510U/en
Publication of JPS59140510U publication Critical patent/JPS59140510U/en
Application granted granted Critical
Publication of JPH0224304Y2 publication Critical patent/JPH0224304Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Television Receiver Circuits (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (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 the drawing]

第１図は多方式のテレビジョン信号が受信可能なテレビ
ジョン受像機の音声信号復調回路の一例を示す概略図、
第２図は従来の可変周波数発振回路の一例を示す回路図
、第３図は本考案の可変周波数発振回路の一例を示す回
路図である。 ５・・・・・・可変周波数発振回路、Ｌ２．Ｌ３・・・
・・・リアクタンス素子、Ｑ２・・・・・・増幅トラン
ジスタ。FIG. 1 is a schematic diagram showing an example of an audio signal demodulation circuit of a television receiver capable of receiving television signals of multiple formats;
FIG. 2 is a circuit diagram showing an example of a conventional variable frequency oscillation circuit, and FIG. 3 is a circuit diagram showing an example of the variable frequency oscillation circuit of the present invention. 5...Variable frequency oscillation circuit, L2. L3...
...Reactance element, Q2...Amplification transistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 発振周波数を決定するりアクタンス素子を切り換えて発
振周波数を変化させる可変周波数発振回路に於いて、前
記リアクタンス素子の切り換えに応じて該可変周波数発
振回路の増幅トランジスタのベースのバイアス電位を発
振強度の変化を補償する方向に変化させる手段を備える
ことを特徴とした可変周波数発振回路。In a variable frequency oscillation circuit that determines the oscillation frequency or changes the oscillation frequency by switching the reactance element, the bias potential of the base of the amplification transistor of the variable frequency oscillation circuit is changed in response to the switching of the reactance element to change the oscillation intensity. A variable frequency oscillation circuit characterized by comprising means for changing the frequency in a compensating direction.
JP3375983U 1983-03-08 1983-03-08 Television receiver audio signal demodulation circuit Granted JPS59140510U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3375983U JPS59140510U (en) 1983-03-08 1983-03-08 Television receiver audio signal demodulation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3375983U JPS59140510U (en) 1983-03-08 1983-03-08 Television receiver audio signal demodulation circuit

Publications (2)

Publication Number Publication Date
JPS59140510U true JPS59140510U (en) 1984-09-19
JPH0224304Y2 JPH0224304Y2 (en) 1990-07-03

Family

ID=30164533

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3375983U Granted JPS59140510U (en) 1983-03-08 1983-03-08 Television receiver audio signal demodulation circuit

Country Status (1)

Country Link
JP (1) JPS59140510U (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4955209A (en) * 1972-09-29 1974-05-29
JPS5040057A (en) * 1973-08-15 1975-04-12
JPS5136647U (en) * 1974-09-12 1976-03-18

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5136647B2 (en) * 1972-09-23 1976-10-09

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4955209A (en) * 1972-09-29 1974-05-29
JPS5040057A (en) * 1973-08-15 1975-04-12
JPS5136647U (en) * 1974-09-12 1976-03-18

Also Published As

Publication number Publication date
JPH0224304Y2 (en) 1990-07-03

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