JPS5942516U - magnetic recording and reproducing device - Google Patents
magnetic recording and reproducing deviceInfo
- Publication number
- JPS5942516U JPS5942516U JP13667282U JP13667282U JPS5942516U JP S5942516 U JPS5942516 U JP S5942516U JP 13667282 U JP13667282 U JP 13667282U JP 13667282 U JP13667282 U JP 13667282U JP S5942516 U JPS5942516 U JP S5942516U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- recording
- composite
- magnetic
- reproducing device
- 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
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
第１図は本考案の一実施例を示すブロック図。
第２図は本考案の一実施例における記録信号の周波数帯
域の分布を示す図。第３図は本考案の−・実施例の作用
の説明に供する波形図。第４図ａおよびｂは本考案の一
実施例において音声周波数変調信号の搬送波周波数を隣
接トラック毎に切替える場合を示すブロック図。
１および１５・・・・・・信号処理回路、２・・・・・
・周波数変調器、２−２および２−２′・・・・・・搬
送波発振器、４・・・・・・スイッチ回路、５・・・・
・・加算回路、６・・・・・・回転ドラム、７および８
・・・・・・磁気ヘッド、９・・・・・・垂直同期信号
分離回路、１０・・・・・・遅延回路、１１゜１９およ
び２１・・・・・・単安定マルチバイブレータ、１４・
・・・・・切替スイッチ回路、１６・・・・・・バンド
パスフィルタ、１７および１７′・・・・・・復調回路
、１８・・・・・・ミュート回路、２０および２２・・
・・・・フリップフロップ。FIG. 1 is a block diagram showing an embodiment of the present invention. FIG. 2 is a diagram showing the distribution of frequency bands of recording signals in one embodiment of the present invention. FIG. 3 is a waveform diagram for explaining the operation of the embodiment of the present invention. FIGS. 4a and 4b are block diagrams showing a case in which the carrier frequency of an audio frequency modulation signal is switched for each adjacent track in an embodiment of the present invention. 1 and 15...signal processing circuit, 2...
・Frequency modulator, 2-2 and 2-2'... Carrier wave oscillator, 4... Switch circuit, 5...
... Addition circuit, 6 ... Rotating drum, 7 and 8
...... Magnetic head, 9... Vertical synchronization signal separation circuit, 10... Delay circuit, 11°19 and 21... Monostable multivibrator, 14.
...Changing switch circuit, 16...Band pass filter, 17 and 17'...Demodulation circuit, 18...Mute circuit, 20 and 22...
····flip flop.
Claims (1)
ビジョン信号を磁気テープに記録するための信号処理し
た信号と音声信号を周波数変調した周波数変調音声信号
とを合成した合成信号の１フイ一ルド分を超える範囲を
順次記録トラックを異にして磁気ヘッドを介して記録す
る磁気記録再生装置において、前記合成信号を記録する
とき前記合成カラーテレビジョン信号中の垂直同期信号
に関連して前記周波数変調音声信号に欠落部分を作る欠
落部分作成手段と、再生のときに再生信号における周波
数変調音声信号の欠落部分を検出する検出手段と、前記
検出手段の出力信号に同期して磁気ヘッドの出力信号を
切替える切替手段とを備えてなることを特徴とする磁気
記録再生装置。One field of a composite signal that has at least two magnetic heads and is a composite of a signal processed for recording a composite color television signal on a magnetic tape and a frequency modulated audio signal obtained by frequency modulating an audio signal. In a magnetic recording/reproducing device that sequentially records data over a range exceeding 100 nm using different recording tracks via a magnetic head, when recording the composite signal, the frequency modulated audio is recorded in relation to the vertical synchronization signal in the composite color television signal. A missing part creating means for creating a missing part in a signal, a detecting means for detecting a missing part of a frequency modulated audio signal in a reproduced signal during reproduction, and an output signal of the magnetic head is switched in synchronization with an output signal of the detecting means. 1. A magnetic recording and reproducing device comprising: switching means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13667282U JPS5942516U (en) | 1982-09-10 | 1982-09-10 | magnetic recording and reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13667282U JPS5942516U (en) | 1982-09-10 | 1982-09-10 | magnetic recording and reproducing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5942516U true JPS5942516U (en) | 1984-03-19 |
| JPH028462Y2 JPH028462Y2 (en) | 1990-02-28 |
Family
ID=30307225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13667282U Granted JPS5942516U (en) | 1982-09-10 | 1982-09-10 | magnetic recording and reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5942516U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002238274A (en) * | 2001-02-07 | 2002-08-23 | Canon Inc | Apparatus and method for controlling rotating speed of motor as well as motor rotating speed control program |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4940529A (en) * | 1972-08-19 | 1974-04-16 |
-
1982
- 1982-09-10 JP JP13667282U patent/JPS5942516U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4940529A (en) * | 1972-08-19 | 1974-04-16 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002238274A (en) * | 2001-02-07 | 2002-08-23 | Canon Inc | Apparatus and method for controlling rotating speed of motor as well as motor rotating speed control program |
| JP4659228B2 (en) * | 2001-02-07 | 2011-03-30 | キヤノン株式会社 | Motor rotation speed control device and motor rotation speed control method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH028462Y2 (en) | 1990-02-28 |
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