JPS58173974U - magnetic recording and reproducing device - Google Patents
magnetic recording and reproducing deviceInfo
- Publication number
- JPS58173974U JPS58173974U JP3818183U JP3818183U JPS58173974U JP S58173974 U JPS58173974 U JP S58173974U JP 3818183 U JP3818183 U JP 3818183U JP 3818183 U JP3818183 U JP 3818183U JP S58173974 U JPS58173974 U JP S58173974U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic recording
- reproducing device
- signals
- speed
- monostable multivibrator
- 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
- Control Of Position Or Direction (AREA)
- Control Of Velocity Or Acceleration (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図は本考案の一実施例のブロック系統図１、第２図
Ａ−Ｅは夫々第１図の再生時の動作説明用タイムチャー
トである。
１・・・・・・映像信号入力端子、５・・・・・・コン
トロールヘッド、６，１６・・・・・・遅延回路、７・
・・・・・位相比較回路、訃・・・・・ピックアップヘ
ッド、９．１０・・・・・・単安定マルチバイブレータ
、１１・・・・・・フリップフロップ、１５・・・・・
・分周回路（単安定マルチバイブレータ）。FIG. 1 is a block system diagram 1 of an embodiment of the present invention, and FIGS. 2A to 2E are time charts for explaining the operation during reproduction of FIG. 1, respectively. 1...Video signal input terminal, 5...Control head, 6, 16...Delay circuit, 7.
...Phase comparator circuit, Pick-up head, 9.10... Monostable multivibrator, 11... Flip-flop, 15...
- Frequency divider circuit (monostable multivibrator).
Claims (1)
転磁気ヘッドにより映像信号等の情報信号及びコントロ
ール信号を磁気記録媒体上に記録し、該回転磁気ヘッド
によりこれを再生する装置において、再生時、上記磁気
記録媒体の速度を記録時のそれのｎ倍（但し、ｎは１よ
り大なる正の実数）として再生されたコントロール信号
を、遅延時間が記録されたコントロール信号の一周期よ
り短く、かつ、その（ｋ−１）／ｋ（但し、ｋは磁気記
録再生装置で決まるｎの最大値）よりも長く選定された
単安定マルチバイブレークに入力し、該単安定マルチバ
イブレータによりｌ／ｎ倍に分周された出力信号を上記
サーボ回路の基準信号として使用することを特徴とする
磁気記録再生装置。In a device that records information signals such as video signals and control signals on a magnetic recording medium using a rotating magnetic head whose rotational speed and rotational phase are controlled by a servo circuit, and reproduces the signals using the rotating magnetic head, during reproduction, The control signal reproduced by setting the speed of the magnetic recording medium to n times the speed at the time of recording (where n is a positive real number greater than 1), the delay time of which is shorter than one cycle of the recorded control signal, and , input to a selected monostable multivibrator longer than (k-1)/k (where k is the maximum value of n determined by the magnetic recording/reproducing device), and the monostable multivibrator increases l/n times. A magnetic recording/reproducing device characterized in that a frequency-divided output signal is used as a reference signal for the servo circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3818183U JPS58173974U (en) | 1983-03-16 | 1983-03-16 | magnetic recording and reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3818183U JPS58173974U (en) | 1983-03-16 | 1983-03-16 | magnetic recording and reproducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58173974U true JPS58173974U (en) | 1983-11-21 |
Family
ID=30049538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3818183U Pending JPS58173974U (en) | 1983-03-16 | 1983-03-16 | magnetic recording and reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58173974U (en) |
-
1983
- 1983-03-16 JP JP3818183U patent/JPS58173974U/en active Pending
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