JPS6121006U - Dropout compensation device for magnetic recording and reproducing equipment - Google Patents
Dropout compensation device for magnetic recording and reproducing equipmentInfo
- Publication number
- JPS6121006U JPS6121006U JP10513084U JP10513084U JPS6121006U JP S6121006 U JPS6121006 U JP S6121006U JP 10513084 U JP10513084 U JP 10513084U JP 10513084 U JP10513084 U JP 10513084U JP S6121006 U JPS6121006 U JP S6121006U
- Authority
- JP
- Japan
- Prior art keywords
- dropout
- head
- magnetic recording
- compensation device
- playback
- 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
Links
Landscapes
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Television Signal Processing For Recording (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
第１図は本考案の磁気記録再生装置のドロップアウト補
償装置の一実施例を示したブロック図、第２図及び第３
図は第１図に示した記録再生ヘッド１とドロップアウト
検出専用ヘッド１８との配置関係を示した図、第４図は
第１図に示した回路の動作波形図、第５図は本考案の他
の実施例を示したブロック図、第６図は従来の音一ＦＭ
記録方式の再生音声信号のドロップアウト補償装置の一
例を示したブロック図、第７図は従来のビデオ信号のド
ロップアウト補償装置の一例を示したブロック図、第８
図は第６図に示した回路の動作波形図である。
１・・・記録再生ヘッド、３，２０・・・プリアンプ、
４，２１・・・ＡＧＣ回路、７・・・バンドパスフィル
タ、８・・・復調器、９・・・スイッチ、１０・・・電
界効果トランジスタ、１２・・・コンデンサ、１８・・
・ドロップアウト専用検出ヘッド、１９・・・ロータリ
ートランス、２２・・・リミツタ、２３・・・ドロップ
アウトエンベロープ検出器、２４・・・検出感度調整器
。FIG. 1 is a block diagram showing an embodiment of a dropout compensating device for a magnetic recording/reproducing device of the present invention, and FIGS.
The figure shows the arrangement relationship between the recording/reproducing head 1 shown in Fig. 1 and the dropout detection head 18, Fig. 4 is an operating waveform diagram of the circuit shown in Fig. 1, and Fig. 5 is a diagram of the present invention. FIG. 6 is a block diagram showing another embodiment of the conventional Otoichi FM.
FIG. 7 is a block diagram showing an example of a dropout compensating device for a playback audio signal using a recording method. FIG. 7 is a block diagram showing an example of a conventional dropout compensating device for a video signal.
This figure is an operation waveform diagram of the circuit shown in FIG. 6. 1... Recording/playback head, 3, 20... Preamplifier,
4, 21... AGC circuit, 7... Band pass filter, 8... Demodulator, 9... Switch, 10... Field effect transistor, 12... Capacitor, 18...
- Dropout dedicated detection head, 19... rotary transformer, 22... limiter, 23... dropout envelope detector, 24... detection sensitivity adjuster.
Claims (1)
記録再生装置における再生信号のドロップアウトを補償
するドロップアウト補償装置において、再生ヘッドに先
行して磁気テープ上の信号を拾うドロップアウト検出専
用ヘッドを回転ディスクに設け、このドロップアウト検
出専用ヘッドにより再生される再生信号からのドロップ
アウト検出信号を得るドロップアウト検出手段を設け、
、このドロップアウト検出信号を用いて前記再生ヘッド
により再生される再生信号のドロップアウトを補償する
手段を作動又は解除することを特徴と．する磁気記録再
生装置のドロップアウト補償装置。In a dropout compensation device that compensates for dropouts in a playback signal in a magnetic recording and playback device that records and plays back frequency modulated recording signals using a rotating head, a dedicated dropout detection head that picks up signals on the magnetic tape in advance of the playback head is used. Dropout detection means is provided on the rotating disk and obtains a dropout detection signal from a playback signal reproduced by the dropout detection dedicated head,
, wherein the dropout detection signal is used to activate or deactivate means for compensating for dropouts in the reproduction signal reproduced by the reproduction head. Dropout compensation device for magnetic recording and reproducing devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10513084U JPS6121006U (en) | 1984-07-13 | 1984-07-13 | Dropout compensation device for magnetic recording and reproducing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10513084U JPS6121006U (en) | 1984-07-13 | 1984-07-13 | Dropout compensation device for magnetic recording and reproducing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6121006U true JPS6121006U (en) | 1986-02-06 |
Family
ID=30664467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10513084U Pending JPS6121006U (en) | 1984-07-13 | 1984-07-13 | Dropout compensation device for magnetic recording and reproducing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6121006U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01144701U (en) * | 1988-03-29 | 1989-10-04 | ||
| JPH07171058A (en) * | 1992-05-28 | 1995-07-11 | Shuji Hakamata | Heating and cooking device and cartridge type fuel to be used for this device |
-
1984
- 1984-07-13 JP JP10513084U patent/JPS6121006U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01144701U (en) * | 1988-03-29 | 1989-10-04 | ||
| JPH07171058A (en) * | 1992-05-28 | 1995-07-11 | Shuji Hakamata | Heating and cooking device and cartridge type fuel to be used for this device |
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