JPH0272412U - - Google Patents
Info
- Publication number
- JPH0272412U JPH0272412U JP15147588U JP15147588U JPH0272412U JP H0272412 U JPH0272412 U JP H0272412U JP 15147588 U JP15147588 U JP 15147588U JP 15147588 U JP15147588 U JP 15147588U JP H0272412 U JPH0272412 U JP H0272412U
- Authority
- JP
- Japan
- Prior art keywords
- optical head
- movement
- optical disk
- optical
- drive control
- 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 12
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Description
第１図は本考案の一実施例の構成を示す構成図
、第２図は本考案装置の動作時の各部の信号波形
を示す波形図、第３図は従来装置の構成を示す構
成図である。
１……光学ヘツド、２……スライド部、４……
スピンドルモータ、５……リミツトスイツチ、６
……モータ、７……モータ駆動部、８……制御回
路、１０……エンコーダ、１１……カウンタ、１
２……メモリ、１３……減算回路、１４……停止
制御回路、１５……スイツチ。
FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, FIG. 2 is a waveform diagram showing signal waveforms of various parts during operation of the device of the present invention, and FIG. 3 is a block diagram showing the configuration of a conventional device. be. 1...Optical head, 2...Slide section, 4...
Spindle motor, 5...Limit switch, 6
... Motor, 7 ... Motor drive section, 8 ... Control circuit, 10 ... Encoder, 11 ... Counter, 1
2...Memory, 13...Subtraction circuit, 14...Stop control circuit, 15...Switch.
Claims (1)
るための光デイスクシステムであつて、 光デイスクの半径方向に移動可能な光学ヘツド
と、 この光学ヘツドを移動させる駆動手段と、 この駆動手段に制御信号を印加する駆動制御手
段と、 前記光学ヘツドの移動限界位置を検知するリミ
ツトスイツチと、 前記光学ヘツドの移動方向を検出する移動方向
検出手段とを備え、 前記光学ヘツドの移動中に前記リミツトスイツ
チで移動限界が検知された時点で、前記駆動制御
手段は前記光学ヘツドを逆方向に駆動するための
制御信号を発生し、 前記光学ヘツドが逆方向に移動し始めたことが
前記移動方向検出手段により検出された時点で、
前記駆動制御手段は制御信号の発生を停止するよ
う構成したことを特徴とする光デイスクシステム
。[Claims for Utility Model Registration] An optical disk system for recording, reproducing, or erasing data on an optical disk, comprising: an optical head movable in the radial direction of the optical disk; and a driving means for moving the optical head. , a drive control means for applying a control signal to the drive means, a limit switch for detecting a movement limit position of the optical head, and a movement direction detection means for detecting a movement direction of the optical head, the movement of the optical head When a movement limit is detected by the limit switch during the movement, the drive control means generates a control signal for driving the optical head in the reverse direction, and it is determined that the optical head starts to move in the reverse direction. When detected by the moving direction detection means,
An optical disk system characterized in that the drive control means is configured to stop generating control signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15147588U JPH0272412U (en) | 1988-11-21 | 1988-11-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15147588U JPH0272412U (en) | 1988-11-21 | 1988-11-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0272412U true JPH0272412U (en) | 1990-06-01 |
Family
ID=31425554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15147588U Pending JPH0272412U (en) | 1988-11-21 | 1988-11-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0272412U (en) |
-
1988
- 1988-11-21 JP JP15147588U patent/JPH0272412U/ja active Pending
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