JPS60127650U - VTR playback system - Google Patents

VTR playback system

Info

Publication number
JPS60127650U
JPS60127650U JP1381484U JP1381484U JPS60127650U JP S60127650 U JPS60127650 U JP S60127650U JP 1381484 U JP1381484 U JP 1381484U JP 1381484 U JP1381484 U JP 1381484U JP S60127650 U JPS60127650 U JP S60127650U
Authority
JP
Japan
Prior art keywords
detected
video signal
reproduction
playback system
gain control
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
JP1381484U
Other languages
Japanese (ja)
Inventor
小林　俊男
Original Assignee
日本電気株式会社
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 日本電気株式会社 filed Critical 日本電気株式会社
Priority to JP1381484U priority Critical patent/JPS60127650U/en
Publication of JPS60127650U publication Critical patent/JPS60127650U/en
Pending legal-status Critical Current

Links

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図は本考案の一実施例を示すブロック図である。 １．２・・・回転磁気ヘッド、３，４・・・再生プリア
ンプ、５・・・出力切換スイッチ、６・・・周波数補正
回路、７・・・自動電圧利得制御回路（ＡＧＣ回路）、
８・・・自動電圧利得制御検波回路、９・・・ＡＧＣ検
波回路用コンデンサー、１０・・・信号振幅制限器、１
１・・・ＦＭ復調器、１２・・・低域変換色信号用バン
ドパスフィルター、１３・・・ＲＦ信号レベル検出回路
、１４・・・サーボ回路出力混合器、１５・・・キャプ
スタンサーボ制御回路、１６・・・キャプスタンモータ
ドライバー、１７・・・キャプスタンモーター。FIG. 1 is a block diagram showing one embodiment of the present invention. 1.2... Rotating magnetic head, 3, 4... Reproduction preamplifier, 5... Output selection switch, 6... Frequency correction circuit, 7... Automatic voltage gain control circuit (AGC circuit),
8... Automatic voltage gain control detection circuit, 9... Capacitor for AGC detection circuit, 10... Signal amplitude limiter, 1
1... FM demodulator, 12... Band pass filter for low frequency conversion color signal, 13... RF signal level detection circuit, 14... Servo circuit output mixer, 15... Capstan servo control Circuit, 16... Capstan motor driver, 17... Capstan motor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 磁気ヘッドを回転させることにより、映像信号が磁気記
録された磁気テープから映像信号を検出、増幅し、この
増幅された映像信号が自動利得制御回路を通じ再生信号
処理されるシステｌ、において、該自動利得制御回路に
より再生信号レベルを検出し、これをもって前記磁気テ
ープの送り速度を制御することを特徴としたＶＴＲ用再
生システム。In this system, a video signal is detected and amplified from a magnetic tape on which the video signal is magnetically recorded by rotating a magnetic head, and the amplified video signal is processed as a reproduction signal through an automatic gain control circuit. A reproduction system for a VTR, characterized in that a reproduction signal level is detected by a gain control circuit, and the feeding speed of the magnetic tape is controlled based on the detected reproduction signal level.
JP1381484U 1984-02-03 1984-02-03 VTR playback system Pending JPS60127650U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1381484U JPS60127650U (en) 1984-02-03 1984-02-03 VTR playback system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1381484U JPS60127650U (en) 1984-02-03 1984-02-03 VTR playback system

Publications (1)

Publication Number Publication Date
JPS60127650U true JPS60127650U (en) 1985-08-27

Family

ID=30498165

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1381484U Pending JPS60127650U (en) 1984-02-03 1984-02-03 VTR playback system

Country Status (1)

Country Link
JP (1) JPS60127650U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02125584A (en) * 1988-11-04 1990-05-14 Victor Co Of Japan Ltd Tracking method for magnetic recording and reproduction device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02125584A (en) * 1988-11-04 1990-05-14 Victor Co Of Japan Ltd Tracking method for magnetic recording and reproduction device

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