JPS62142737U - - Google Patents
Info
- Publication number
- JPS62142737U JPS62142737U JP3048186U JP3048186U JPS62142737U JP S62142737 U JPS62142737 U JP S62142737U JP 3048186 U JP3048186 U JP 3048186U JP 3048186 U JP3048186 U JP 3048186U JP S62142737 U JPS62142737 U JP S62142737U
- Authority
- JP
- Japan
- Prior art keywords
- control signal
- capstan motor
- magnetic tape
- magnetic
- head
- 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
- 238000010586 diagram Methods 0.000 description 4
Description
第１図は本考案に係る磁気記録再生装置のサー
ボ系の構成の一実施例を示すブロツク図、第２図
は同上装置の回転ドラム近傍の磁気ヘツドと磁気
テープとの関係を示す上面図、第３図は同上装置
におけるキヤプスタンサーボ回路の具体的実施例
を示すブロツク図、第４図は同上キヤプスタンサ
ーボ回路の各部波形を示すタイミングチヤート、
第５図は従来の磁気記録再生装置の回転ドラム近
傍の上面図、第６図は磁気テープに記録された信
号の一般的なトラツクパターンを示した図、第７
図は従来の磁気記録再生装置のサーボ系の構成を
示すブロツク図である。
１…回転ヘツドドラム、２…磁気テープ、５…
コントロールヘツド、５′…コントロール信号消
去ヘツド、７…ドラムサーボ回路、９…ドラムモ
ータ、１２′…キヤプスタンサーボ回路、１３…
キヤプスタンモータドライバ回路、１４…キヤプ
スタンモータ。
FIG. 1 is a block diagram showing an embodiment of the configuration of a servo system of a magnetic recording/reproducing device according to the present invention, and FIG. 2 is a top view showing the relationship between the magnetic head and magnetic tape near the rotating drum of the same device. FIG. 3 is a block diagram showing a specific embodiment of the capstan servo circuit in the above device, and FIG. 4 is a timing chart showing waveforms of various parts of the capstan servo circuit in the above device.
FIG. 5 is a top view of the vicinity of the rotating drum of a conventional magnetic recording/reproducing device, FIG. 6 is a diagram showing a general track pattern of a signal recorded on a magnetic tape, and FIG.
The figure is a block diagram showing the configuration of a servo system of a conventional magnetic recording/reproducing device. 1... Rotating head drum, 2... Magnetic tape, 5...
Control head, 5'... Control signal erasing head, 7... Drum servo circuit, 9... Drum motor, 12'... Capstan servo circuit, 13...
Capstan motor driver circuit, 14...capstan motor.
Claims (1)
定速駆動して第１の磁気ヘツドにより上記磁気テ
ープに情報信号を記録すると共に第２の磁気ヘツ
ドで上記磁気テープにコントロール信号を記録す
るものであつて、 再生時、上記第２の磁気ヘツドでコントロール
信号を再生してキヤプスタンモータ制御回路に入
力し、上記コントロール信号に基づく上記キヤプ
スタンモータ制御回路の制御電圧により上記キヤ
プスタンモータの回転を制御するものにおいて、 上記磁気テープ上のコントロール信号を消去す
るための消去ヘツドを上記第２の磁気ヘツドに隣
接して設け、斯る消去ヘツドで上記磁気テープ上
の任意の位置でのコントロール信号を消去できる
ようにし、 かつ、上記キヤプスタンモータ制御回路は再生
時上記コントロール信号が消勢するとその制御電
圧により上記キヤプスタンモータを高速回転させ
るようにした事を特徴とする磁気記録再生装置。[Claims for Utility Model Registration] A magnetic tape is driven at a constant speed by rotation of a capstan motor, information signals are recorded on the magnetic tape by a first magnetic head, and control is performed on the magnetic tape by a second magnetic head. The device records a signal, and when reproducing, the control signal is reproduced by the second magnetic head and inputted to the capstan motor control circuit, and the control voltage of the capstan motor control circuit is determined based on the control signal. An erasing head for erasing the control signal on the magnetic tape is provided adjacent to the second magnetic head, and the erasing head erases the control signal on the magnetic tape. The control signal at any position can be erased, and the capstan motor control circuit is configured to rotate the capstan motor at high speed using the control voltage when the control signal is deactivated during playback. A magnetic recording/reproducing device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3048186U JPS62142737U (en) | 1986-02-28 | 1986-02-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3048186U JPS62142737U (en) | 1986-02-28 | 1986-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62142737U true JPS62142737U (en) | 1987-09-09 |
Family
ID=30835330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3048186U Pending JPS62142737U (en) | 1986-02-28 | 1986-02-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62142737U (en) |
-
1986
- 1986-02-28 JP JP3048186U patent/JPS62142737U/ja active Pending
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