JPS5936070U - Pickup element moving device - Google Patents
Pickup element moving deviceInfo
- Publication number
- JPS5936070U JPS5936070U JP13166082U JP13166082U JPS5936070U JP S5936070 U JPS5936070 U JP S5936070U JP 13166082 U JP13166082 U JP 13166082U JP 13166082 U JP13166082 U JP 13166082U JP S5936070 U JPS5936070 U JP S5936070U
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- pickup element
- moving device
- coil
- pulses
- 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
Landscapes
- Moving Of Head For Track Selection And Changing (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１−はピックアップ素子移動装置の機構部分の一例を
原理的に示す図、第２図は従来のピックアップ素子移動
装置の全体的な構成を示す回路図、第３図ａ、 ｂは第
２図に示す装置の動作を説明する為の信号波形図、第４
図はこの考案に係るピックアップ素子移動装置の一実施
例を示す回路図、第５図ａ、 ｂは第４図に示す装置の
動作を説明する為の信号波形図である。
１１−・・スタイラス、１２・・・ビデオディスク、１
３・・・ピックアップアーム、１４−・・スキッパマグ
ネット、１５・・・キツカーコイル、２３・・・オペア
ンプ、２４・・・トラッキング位置補正回路、３１−・
・第１のパルス発生回路、３２・−＠２のパルス発生回
路、Ｒ１６〜Ｒ□８．Ｒ２□〜Ｒ２３・・・抵抗。
第２図
、２４ ．１１1- is a diagram showing the principle of an example of a mechanical part of a pickup element moving device, FIG. 2 is a circuit diagram showing the overall configuration of a conventional pickup element moving device, and FIGS. Signal waveform diagram for explaining the operation of the device shown in Figure 4.
The figure is a circuit diagram showing an embodiment of the pickup element moving device according to the invention, and FIGS. 5a and 5b are signal waveform diagrams for explaining the operation of the device shown in FIG. 4. 11--Stylus, 12--Video disc, 1
3... Pickup arm, 14-... Skipper magnet, 15... Kitzker coil, 23... Operational amplifier, 24... Tracking position correction circuit, 31-...
- First pulse generating circuit, 32.-@2 pulse generating circuit, R16 to R□8. R2□~R23...Resistance. Figure 2, 24. 11
Claims (1)
分の交流信号の形態を成Ｃた駆動電流をコイルに供給す
ることによって電磁力を発生させ、この電磁力により記
録円盤より記録信号をピックアップするピックアップ素
子を該ピックアップ素子の搬送手段とは独立に記録円盤
の径方向へ移動せしめることが可能なピックアップ素子
移動装置に於いて、同極性のパルスでかつ幅が略等しく
しかも位相がその幅分だけずれた第１、第２の２つのパ
ルスを出力することが可能なパルス発生回路−と、°前
記第１のパルスが一方の入力端子に供給さ−れ前記第２
のパルスが他方の入力端子に供給されることにより出力
端子側に前記コイルに供給する為の駆動電流を導出可能
なオペアンプとを具備したピックアップ素子移動装置。 −第１図 １．３ １２２ 闇干[Claims for Utility Model Registration] An electromagnetic force is generated by supplying a drive current in the form of one period of an AC signal to a coil by a pulse part of positive polarity and a pulse part of negative polarity. In a pickup element moving device capable of moving a pickup element that picks up recording signals from a recording disk by force in the radial direction of the recording disk independently of a conveying means for the pickup element, pulses of the same polarity and width are used. a pulse generating circuit capable of outputting two pulses, a first pulse and a second pulse whose widths are substantially equal and whose phases are shifted by the width; Said second
an operational amplifier capable of deriving a drive current to be supplied to the coil on the output terminal side by supplying the pulse to the other input terminal. -Figure 1 1.3 122 Darkness
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13166082U JPS5936070U (en) | 1982-08-31 | 1982-08-31 | Pickup element moving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13166082U JPS5936070U (en) | 1982-08-31 | 1982-08-31 | Pickup element moving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5936070U true JPS5936070U (en) | 1984-03-06 |
Family
ID=30297578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13166082U Pending JPS5936070U (en) | 1982-08-31 | 1982-08-31 | Pickup element moving device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5936070U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6443878A (en) * | 1987-08-11 | 1989-02-16 | Sharp Kk | Track accessing device in disk reproducing device |
-
1982
- 1982-08-31 JP JP13166082U patent/JPS5936070U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6443878A (en) * | 1987-08-11 | 1989-02-16 | Sharp Kk | Track accessing device in disk reproducing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2992584B2 (en) | Pulse detection circuit | |
| JPS5936070U (en) | Pickup element moving device | |
| US2815498A (en) | Magnetic memory channel recirculating systems | |
| JPH0782023B2 (en) | Motor speed detector | |
| US4647988A (en) | Magnetic write circuit | |
| JPS6020812B2 (en) | magnetic recording device | |
| CA1149948A (en) | Bidirectional pulse generator for video disc stylus deflector transducer | |
| JP2714142B2 (en) | Control signal waveform shaping circuit | |
| JPS6123592B2 (en) | ||
| JPS58141682U (en) | Differential amplifier circuit | |
| JPS59187216U (en) | Current-limited feedback amplifier circuit | |
| JPH0297290A (en) | Motor rotation direction detection device | |
| JPS59127209A (en) | Removing method of external noise in read of magnetic medium | |
| JPS6364662A (en) | magnetic recording and reproducing device | |
| JPS6117203A (en) | magnetic recording and reproducing device | |
| JPS59122696U (en) | Disconnection detection device for sensors | |
| JPS59145732U (en) | Tape recorder control circuit | |
| JPS61151811A (en) | Floppy disk device | |
| JPS6138540B2 (en) | ||
| JPS63179407A (en) | Envelope detection circuit | |
| JPH0325844B2 (en) | ||
| JPS5994483U (en) | magnetic recording and playback device | |
| JPS5832549U (en) | Magnetic printed matter reading device | |
| JPH029726B2 (en) | ||
| JPS60702U (en) | Tone arm control device |