JPS627618U - - Google Patents
Info
- Publication number
- JPS627618U JPS627618U JP9696185U JP9696185U JPS627618U JP S627618 U JPS627618 U JP S627618U JP 9696185 U JP9696185 U JP 9696185U JP 9696185 U JP9696185 U JP 9696185U JP S627618 U JPS627618 U JP S627618U
- Authority
- JP
- Japan
- Prior art keywords
- speed
- frequency
- optical head
- optical
- voltage
- 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 10
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Moving Of Head For Track Selection And Changing (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Description
第１図〜第５図は本考案の第１実施例を示して
おり、第１図は回路部のブロツク図、第２図は機
構部の平面図、第３図は光学ヘツドの送り時にお
ける信号の波形を示すグラフ、第４図は光学ヘツ
ドの停止時における信号の波形を示すグラフ、第
５図は光学ヘツドの送り速度と記録トラツクを横
断する周波数との関係を示すグラフである。第６
図は本考案の第２実施例の回路部のブロツク図で
ある。
なお図面に用いた符号において、１１……光学
デイスク、１３……光学ヘツド、１４……コイル
、１７……磁気回路、２１……エンベロープ検波
器、２３……周波数―電圧変換器である。
1 to 5 show a first embodiment of the present invention, in which FIG. 1 is a block diagram of the circuit section, FIG. 2 is a plan view of the mechanism section, and FIG. 3 is a diagram of the optical head during feeding. FIG. 4 is a graph showing the signal waveform when the optical head is stopped, and FIG. 5 is a graph showing the relationship between the optical head feeding speed and the frequency across the recording track. 6th
The figure is a block diagram of the circuit section of the second embodiment of the present invention. In the symbols used in the drawings, 11...optical disk, 13...optical head, 14...coil, 17...magnetic circuit, 21...envelope detector, 23...frequency-voltage converter.
Claims (1)
断する様に前記光学記録媒体に対する前記光学ヘ
ツドの相対的な送りを行う駆動機構と、 前記横断によつて変調された前記記録トラツク
からの再生信号のエンベロープを検波するエンベ
ロープ検波器と、 このエンベロープ検波器の出力信号の周波数に
応じた電圧を出力する周波数―電圧変換器とを夫
夫具備し、 この周波数―電圧変換器の前記電圧から前記駆
動機構による前記送りの速度を検出し、 この検出した速度に基づいて前記送りの速度制
御を行う様にした光学ヘツド用速り装置。[Claims for Utility Model Registration] A drive mechanism for moving the optical head relative to the optical recording medium so that the optical head traverses a recording track of the optical recording medium; The frequency-voltage converter is equipped with an envelope detector that detects the envelope of the reproduction signal from the recording track, and a frequency-voltage converter that outputs a voltage according to the frequency of the output signal of the envelope detector. A speed device for an optical head, wherein the speed of the feed by the drive mechanism is detected from the voltage of the head, and the speed of the feed is controlled based on the detected speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9696185U JPS627618U (en) | 1985-06-26 | 1985-06-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9696185U JPS627618U (en) | 1985-06-26 | 1985-06-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS627618U true JPS627618U (en) | 1987-01-17 |
Family
ID=30963354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9696185U Pending JPS627618U (en) | 1985-06-26 | 1985-06-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS627618U (en) |
-
1985
- 1985-06-26 JP JP9696185U patent/JPS627618U/ja active Pending
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