JPH01170369U - - Google Patents
Info
- Publication number
- JPH01170369U JPH01170369U JP6665988U JP6665988U JPH01170369U JP H01170369 U JPH01170369 U JP H01170369U JP 6665988 U JP6665988 U JP 6665988U JP 6665988 U JP6665988 U JP 6665988U JP H01170369 U JPH01170369 U JP H01170369U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic disk
- magnetic
- head
- servo
- servo information
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Moving Of Head For Track Selection And Changing (AREA)
- Moving Of The Head To Find And Align With The Track (AREA)
Description
第１図はこの考案の磁気デイスク装置の一実施
例に係り、サーボ装置および制御装置のブロツク
図、第２図は第１図のサーボ装置の動作処理手順
を示すフローチヤート、第３図は同制御装置の動
作処理手順を示すフローチヤート、第４図はサー
ボ機能修復動作時におけるタイムチヤート図、第
５図は変形例として示した同タイムチヤート図、
第６図は磁気デイスク装置の概略構成を示す平面
図、第７図は第６図の内部構造を示す正面図であ
る。
１……ウインチエスタ・デイスク装置（磁気デ
イスク装置）、３……スピンドルモータ（デイス
ク駆動機構）、４，５，６……磁気デイスク、７
ａ……サーボヘツド（磁気ヘツド機構）、７ｂ〜
７ｆ……データヘツド（磁気ヘツド機構）、８ａ
〜８ｆ……ヘツドアーム（磁気ヘツド機構）、９
……キヤリア（磁気ヘツド機構）、１１……ＶＣ
Ｍ（ヘツド位置決め機構）、１２……サーボ処理
部、１３……ヘツド位置検出回路、１４……サー
ボ機能修復回路、１５……制御処理部、１６……
アクチユエータ制御回路、１７……アクチユエー
タ駆動回路。
FIG. 1 is a block diagram of a servo device and a control device according to an embodiment of the magnetic disk device of this invention, FIG. 2 is a flowchart showing the operation processing procedure of the servo device of FIG. 1, and FIG. A flowchart showing the operation processing procedure of the control device, FIG. 4 is a time chart during a servo function repair operation, and FIG. 5 is a time chart of the same shown as a modified example.
FIG. 6 is a plan view showing a schematic configuration of the magnetic disk device, and FIG. 7 is a front view showing the internal structure of FIG. 1... Winchiesta disk device (magnetic disk device), 3... Spindle motor (disk drive mechanism), 4, 5, 6... Magnetic disk, 7
a...Servo head (magnetic head mechanism), 7b~
7f...Data head (magnetic head mechanism), 8a
~8f...Head arm (magnetic head mechanism), 9
...Carrier (magnetic head mechanism), 11...VC
M (head positioning mechanism), 12... Servo processing unit, 13... Head position detection circuit, 14... Servo function restoration circuit, 15... Control processing unit, 16...
Actuator control circuit, 17... Actuator drive circuit.
Claims (1)
構と、上記磁気デイスク上に情報を記録または上
記磁気デイスク上のサーボ情報を含む情報を再生
する磁気ヘツド機構と、上記サーボ情報をもとに
、上記磁気ヘツドを上記磁気デイスクの目的トラ
ツクに位置決めするヘツド位置決め機構とを備え
た磁気デイスク装置において、 上記磁気ヘツドがサーボ情報を正常に読込んで
いるか否かを検知する正常読込み検知手段と、上
記正常読込み検知手段によつてサーボ情報が正常
に読込まれていないことが検知された時、上記ヘ
ツド位置決め機構を微小速度で駆動させ、サーボ
情報を探し出すサーボ機能修復手段とを備えた磁
気デイスク装置。[Claims for Utility Model Registration] A disk drive mechanism that rotationally drives a magnetic disk, a magnetic head mechanism that records information on the magnetic disk or reproduces information including servo information on the magnetic disk, and In a magnetic disk device equipped with a head positioning mechanism for positioning the magnetic head on a target track of the magnetic disk, there is provided normal reading detection means for detecting whether or not the magnetic head is reading servo information normally. and servo function restoration means for driving the head positioning mechanism at a minute speed to search for servo information when the normal reading detection means detects that the servo information is not being read normally. disk device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6665988U JPH01170369U (en) | 1988-05-20 | 1988-05-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6665988U JPH01170369U (en) | 1988-05-20 | 1988-05-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01170369U true JPH01170369U (en) | 1989-12-01 |
Family
ID=31292057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6665988U Pending JPH01170369U (en) | 1988-05-20 | 1988-05-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01170369U (en) |
-
1988
- 1988-05-20 JP JP6665988U patent/JPH01170369U/ja active Pending
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