JPS63142067U - - Google Patents
Info
- Publication number
- JPS63142067U JPS63142067U JP3310387U JP3310387U JPS63142067U JP S63142067 U JPS63142067 U JP S63142067U JP 3310387 U JP3310387 U JP 3310387U JP 3310387 U JP3310387 U JP 3310387U JP S63142067 U JPS63142067 U JP S63142067U
- Authority
- JP
- Japan
- Prior art keywords
- servo signal
- temporary
- drive device
- disk drive
- magnetic disk
- 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
- 238000010586 diagram Methods 0.000 description 8
- 230000005284 excitation Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Moving Of The Head To Find And Align With The Track (AREA)
Description
第１図ないし第５図は、この考案の一実施例を
説明するためのもので、第１図は書き込まれた仮
サーボ信号とサーボ信号および記録トラツクとの
関係を示す説明図、第２図は実施例に係る磁気デ
イスク駆動装置の制御系を示すブロツク図、第３
図は磁気デイスクの領域を示す説明図、第４図は
サーボ回路の一例を示すブロツク図、第５図は仮
サーボ信号とサーボ信号の書き込み手順を示すフ
ローチヤート、第６図は他の実施例に係る仮サー
ボパターンとサーボパターンを示す説明図、第７
図ないし第１０図は従来例を説明するためのもの
で、第７図は従来例に係る磁気デイスク駆動装置
の内部構造を示す平面図、第８図はトルク一定の
励磁電流を示す説明図、第９図はステツピングモ
ータの角度精度を示す実測図、第１０図は従来の
サーボパターンを示す説明図である。
１…磁気デイスク、２…磁気ヘツド、１１…ス
テツピングモータ、２２…駆動回路、Ｆ，Ｆ０，
…Ｆｎ…サーボ信号、ＤＦ，ＤＦ０，…ＤＦｎ…
仮サーボ信号、Ｓ…サーボ領域、Ｄ…データ領域
、Ｔ…記録トラツク。
1 to 5 are for explaining one embodiment of this invention, and FIG. 1 is an explanatory diagram showing the relationship between the written temporary servo signal, the servo signal, and the recording track, and FIG. 3 is a block diagram showing the control system of the magnetic disk drive device according to the embodiment.
The figure is an explanatory diagram showing the area of the magnetic disk, FIG. 4 is a block diagram showing an example of a servo circuit, FIG. 5 is a flowchart showing a temporary servo signal and a servo signal writing procedure, and FIG. 6 is another embodiment. 7th explanatory diagram showing a temporary servo pattern and a servo pattern according to
10 to 10 are for explaining the conventional example, FIG. 7 is a plan view showing the internal structure of a magnetic disk drive device according to the conventional example, FIG. 8 is an explanatory diagram showing an excitation current with constant torque, FIG. 9 is an actual measurement diagram showing the angular accuracy of the stepping motor, and FIG. 10 is an explanatory diagram showing a conventional servo pattern. DESCRIPTION OF SYMBOLS 1... Magnetic disk, 2... Magnetic head, 11... Stepping motor, 22... Drive circuit, F, F 0 ,
...F n ...servo signal, DF, DF 0 , ...DF n ...
Temporary servo signal, S...servo area, D...data area, T...recording track.
Claims (1)
転駆動し、モータ装置によつてステツプ駆動され
る磁気ヘツドを介して信号の書き込みおよび読み
出しをおこなう磁気デイスク駆動装置において、
予め設定した記録トラツク位置の予め設定した領
域に仮サーボ信号を書き込む仮サーボ信号書き込
み制御手段と、この仮サーボ信号書き込み制御手
段によつて書き込まれた仮サーボ信号を検出し、
該仮サーボ信号を基準として予め設定したライト
プロテクトされる領域に、記録トラツクの中心位
置情報を与えるサーボ信号を書き込むサーボ信号
書き込み制御手段と、を備えていることを特徴と
する磁気デイスク駆動装置。 (2) 実用新案登録請求の範囲第(1)項において、
仮サーボ信号が、上記記録トラツク位置の半径方
向に、隣接する記録トラツク間で交互に位置する
ように書き込まれていることを特徴とする磁気デ
イスク駆動装置。 (3) 実用新案登録請求の範囲第(1)項において、
サーボ信号が、上記ライトプロテクトされる領域
の半径方向に、互いに隣接するサーボ信号を交互
に位置させて書き込まれていることを特徴とする
磁気デイスク駆動装置。[Claims for Utility Model Registration] (1) A magnetic disk drive device that rotates a disk-shaped magnetic recording medium and writes and reads signals through a magnetic head that is step-driven by a motor device. In,
Temporary servo signal writing control means for writing a temporary servo signal in a preset area of a preset recording track position; detecting a temporary servo signal written by the temporary servo signal writing control means;
A magnetic disk drive device comprising: servo signal writing control means for writing a servo signal giving center position information of a recording track into a write-protected area preset based on the temporary servo signal. (2) In paragraph (1) of claims for utility model registration,
A magnetic disk drive device characterized in that temporary servo signals are written so as to be alternately located between adjacent recording tracks in the radial direction of the recording track position. (3) In paragraph (1) of claims for utility model registration,
A magnetic disk drive device characterized in that servo signals are written in such a manner that adjacent servo signals are alternately positioned in the radial direction of the write-protected area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3310387U JPH0753182Y2 (en) | 1987-03-09 | 1987-03-09 | Magnetic disk drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3310387U JPH0753182Y2 (en) | 1987-03-09 | 1987-03-09 | Magnetic disk drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63142067U true JPS63142067U (en) | 1988-09-19 |
| JPH0753182Y2 JPH0753182Y2 (en) | 1995-12-06 |
Family
ID=30840399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3310387U Expired - Lifetime JPH0753182Y2 (en) | 1987-03-09 | 1987-03-09 | Magnetic disk drive |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0753182Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63263676A (en) * | 1987-04-21 | 1988-10-31 | Y Ii Data:Kk | Method and device for recording servo data in magnetic disk |
-
1987
- 1987-03-09 JP JP3310387U patent/JPH0753182Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63263676A (en) * | 1987-04-21 | 1988-10-31 | Y Ii Data:Kk | Method and device for recording servo data in magnetic disk |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0753182Y2 (en) | 1995-12-06 |
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