JPH0361619U - - Google Patents
Info
- Publication number
- JPH0361619U JPH0361619U JP12373389U JP12373389U JPH0361619U JP H0361619 U JPH0361619 U JP H0361619U JP 12373389 U JP12373389 U JP 12373389U JP 12373389 U JP12373389 U JP 12373389U JP H0361619 U JPH0361619 U JP H0361619U
- Authority
- JP
- Japan
- Prior art keywords
- optical disk
- magnetic head
- servo amplifier
- radial
- deflection
- 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
- 230000003287 optical effect Effects 0.000 claims description 16
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案に係わる光デイスクドライブ装
置の一実施例を示す構成図、第２図は変位センサ
位置での光デイスク振れと磁気ヘツド位置での光
デイスク振れを示すタイムチヤート、第３図は本
考案の他の実施例を示す構成図、第４図は従来例
である。
１０…磁気ヘツド、１１…光デイスク、１２…
光学ヘツド、１３…スライド、１４…変位センサ
、１５…遅延回路、１６…サーボアンプ、１７…
ラジアルサーボアンプ。
FIG. 1 is a configuration diagram showing an embodiment of an optical disk drive device according to the present invention, FIG. 2 is a time chart showing optical disk vibration at the displacement sensor position and optical disk vibration at the magnetic head position, and FIG. 3 4 is a configuration diagram showing another embodiment of the present invention, and FIG. 4 is a conventional example. 10... Magnetic head, 11... Optical disk, 12...
Optical head, 13...Slide, 14...Displacement sensor, 15...Delay circuit, 16...Servo amplifier, 17...
Radial servo amplifier.
Claims (1)
半径方向に位置制御できる磁気ヘツドと、この磁
気ヘツドと光デイスクの同一側・同一半径上で前
記スライドに保持され光デイスクの振れを検出す
る変位センサと、この変位センサの出力が入力さ
れ前記磁気ヘツド位置での光デイスク振れと変位
センサ位置での光デイスク振れの時間遅れに相当
する遅れを与える遅延回路と、この遅延回路の出
力を増幅するサーボアンプと、前記磁気ヘツドと
は光デイスクに対して反対側・同一半径上で前記
スライドに保持された光学ヘツドからのラジアル
コイル電流を増幅するラジアルサーボアンプと、
前記サーボアンプとラジアルサーボアンプの出力
が入力され前記磁気ヘツドを光デイスクの厚さ方
向及び半径方向に変位させる磁気ヘツドアクチユ
エータを設けた構成とし、光デイスクの振れ及び
偏心の検出信号を用いて光デイスクの振れ及び偏
心に追従するように磁気ヘツドの位置制御を行う
ようにしたことを特徴とする光デイスクドライブ
装置。 A magnetic head held on a slide and capable of controlling the position in the thickness direction and radial direction of the optical disk, and a displacement sensor held on the slide on the same side and on the same radius of the optical disk as the magnetic head and detecting the deflection of the optical disk. , a delay circuit to which the output of the displacement sensor is input and provides a delay corresponding to the time delay between the optical disk shake at the magnetic head position and the optical disk shake at the displacement sensor position, and a servo amplifier that amplifies the output of this delay circuit. and a radial servo amplifier that amplifies the radial coil current from the optical head held on the slide on the opposite side and on the same radius as the optical disk with respect to the magnetic head.
The magnetic head actuator is provided with a magnetic head actuator that receives the outputs of the servo amplifier and the radial servo amplifier and displaces the magnetic head in the thickness direction and radial direction of the optical disk, and uses detection signals for the deflection and eccentricity of the optical disk. 1. An optical disk drive device characterized in that the position of a magnetic head is controlled so as to follow the deflection and eccentricity of the optical disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12373389U JPH0361619U (en) | 1989-10-23 | 1989-10-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12373389U JPH0361619U (en) | 1989-10-23 | 1989-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0361619U true JPH0361619U (en) | 1991-06-17 |
Family
ID=31671697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12373389U Pending JPH0361619U (en) | 1989-10-23 | 1989-10-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0361619U (en) |
-
1989
- 1989-10-23 JP JP12373389U patent/JPH0361619U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0361619U (en) | ||
| JPS6183114U (en) | ||
| JPH03121551U (en) | ||
| JPH01160309U (en) | ||
| JPH0366028U (en) | ||
| JPS5810110U (en) | Servo mechanism | |
| JPS63181124A (en) | Optical disk device | |
| JPH0384915U (en) | ||
| JPS6183113U (en) | ||
| JPS63200270U (en) | ||
| JPS62180321U (en) | ||
| JPS63157824U (en) | ||
| JPS60186515U (en) | optical pickup device | |
| JPH0276369U (en) | ||
| JPH01146314U (en) | ||
| JPS62138315U (en) | ||
| JPS6336957U (en) | ||
| JPS63195615U (en) | ||
| JPS63293724A (en) | Device for moving optical head | |
| JPS58136843U (en) | Mirror position detection device | |
| JPH0416620U (en) | ||
| JPH01138213U (en) | ||
| JPH01107381A (en) | Magnetic storage device utilized in positioning amplitude of data signal | |
| JPH0246970U (en) | ||
| JPS61153116U (en) |