JPH0420773U - - Google Patents

Info

Publication number
JPH0420773U
JPH0420773U JP6161190U JP6161190U JPH0420773U JP H0420773 U JPH0420773 U JP H0420773U JP 6161190 U JP6161190 U JP 6161190U JP 6161190 U JP6161190 U JP 6161190U JP H0420773 U JPH0420773 U JP H0420773U
Authority
JP
Japan
Prior art keywords
circuit
pal
secam
oscillation circuit
modulator
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
JP6161190U
Other languages
English (en)
Other versions
JP2552307Y2 (ja
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 filed Critical
Priority to JP1990061611U priority Critical patent/JP2552307Y2/ja
Publication of JPH0420773U publication Critical patent/JPH0420773U/ja
Application granted granted Critical
Publication of JP2552307Y2 publication Critical patent/JP2552307Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【図面の簡単な説明】
第１図は本考案の一実施例のブロツク図、第２
図は本考案の一実施例の概略平面図、第３図は従
来の一例のブロツク図である。 ６……ＦＭ変調発振回路、９……平衡変調器、
１０……音声信号入力端子、１１……エンフアシ
ス回路、１２……出力端子、１３，１８，２７，
２８……同調回路、１４……発振回路、２０……
ＰＡＬ／ＳＥＣＡＭ両用ＩＣ、２１……ＡＭ変調
器、２２……発振回路、２５……スイツチ回路、
２６……発振動作切換制御信号入力端子、３１…
…ブースタ、３２……ケース、ＳＷ１……スイツ
チ。

Claims (1)

  1. 【実用新案登録請求の範囲】 ＰＡＬ用の音声信号ＦＭ変調発振回路と、ＳＥ
    ＣＡＭ用の音声信号ＡＭ変調器と該ＡＭ変調器に
    搬送波を供給するＳＥＣＡＭ用発振回路と、外部
    からのＰＡＬ／ＳＥＣＡＭ切換信号によつて上記
    ＰＡＬ用ＦＭ変調発振回路と上記ＳＥＣＡＭ用発
    振回路とを夫々切換え動作させるスイツチ回路と
    、映像信号系回路とを一つのＩＣ内に構成し、 かつ、該ＩＣの外付部品として、上記ＰＡＬ用
    ＦＭ変調発振回路の同調をとるＰＡＬ用同調回路
    と、上記ＳＥＣＡＭ用発振回路の同調をとるＳＥ
    ＣＡＭ用同調回路と、ＰＡＬ用の音声信号エンフ
    アシス回路と、入力音声信号をＰＡＬ系回路及び
    ＳＥＣＡＭ系回路に切換え供給するスイツチと、
    平衡変調器と、該平衡変調器に搬送波を供給する
    発振回路と、ＰＡＬ／ＳＥＣＡＭによつて平衡変
    調方式を切換えるボリユームとを設けてなるＰＡ
    Ｌ／ＳＥＣＡＭ切換えモジユレータ。
JP1990061611U 1990-06-11 1990-06-11 Ｐａｌ／ｓｅｃａｍ切換えモジュレータ Expired - Lifetime JP2552307Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990061611U JP2552307Y2 (ja) 1990-06-11 1990-06-11 Ｐａｌ／ｓｅｃａｍ切換えモジュレータ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990061611U JP2552307Y2 (ja) 1990-06-11 1990-06-11 Ｐａｌ／ｓｅｃａｍ切換えモジュレータ

Publications (2)

Publication Number Publication Date
JPH0420773U true JPH0420773U (ja) 1992-02-21
JP2552307Y2 JP2552307Y2 (ja) 1997-10-29

Family

ID=31590013

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990061611U Expired - Lifetime JP2552307Y2 (ja) 1990-06-11 1990-06-11 Ｐａｌ／ｓｅｃａｍ切換えモジュレータ

Country Status (1)

Country Link
JP (1) JP2552307Y2 (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5588474A (en) * 1978-12-26 1980-07-04 Hitachi Ltd Rf modulator for both pal and secam

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5588474A (en) * 1978-12-26 1980-07-04 Hitachi Ltd Rf modulator for both pal and secam

Also Published As

Publication number Publication date
JP2552307Y2 (ja) 1997-10-29

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