JPS61203424U - - Google Patents
Info
- Publication number
- JPS61203424U JPS61203424U JP8566185U JP8566185U JPS61203424U JP S61203424 U JPS61203424 U JP S61203424U JP 8566185 U JP8566185 U JP 8566185U JP 8566185 U JP8566185 U JP 8566185U JP S61203424 U JPS61203424 U JP S61203424U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- polarity
- comparison signal
- control device
- utility
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Optical Recording Or Reproduction (AREA)
Description
第１図及び第３図は本考案の実施例を示す構成
図、第２図及び第４図は本考案の説明に供するタ
イミングチヤート図をそれぞれ示す。
１……コントロール装置、２……波形発生回路
、３……極性制御回路、４……差動増幅器、５…
…極性切換え回路、６１，６２……位相補償フイ
ルタ、７１，７２……バツフアアンプ、８……光
学ピツクアツプ系、９……トラツキングエラー検
出器、１０……光磁気デイスク、１１……差検出
装置、Ｓ３，Ｓ３′……基準信号、Ｓ６……トラ
ツキングエラー信号。
1 and 3 are block diagrams showing an embodiment of the present invention, and FIGS. 2 and 4 are timing charts for explaining the present invention, respectively. DESCRIPTION OF SYMBOLS 1... Control device, 2... Waveform generation circuit, 3... Polarity control circuit, 4... Differential amplifier, 5...
...polarity switching circuit, 6 1 , 6 2 ... phase compensation filter, 7 1 , 7 2 ... buffer amplifier, 8 ... optical pickup system, 9 ... tracking error detector, 10 ... magneto-optical disk, 11 ... ...Difference detection device, S3 , S3 ' ...Reference signal, S6 ...Tracking error signal.
Claims (1)
動に応じて正弦波状に変化するトラツキングエラ
ー信号の所望の点に前記光スポツトを対応位置さ
せるべく、一定の基準信号と前記トラツキングエ
ラー信号との比較信号によつて前記光スポツトの
前記デイスク上の位置を制御する手段と、前記光
スポツトを前記所望の点から他の点に対応位置さ
せるべく、前記基準信号として正傾斜から負傾斜
に、また負傾斜から正傾斜に変化する信号を発生
する手段と、前記光スポツトの対応位置が前記ト
ラツキングエラー信号の一方の傾斜領域から他方
の傾斜領域に変わる場合には前記比較信号の極性
が反転するように制御する手段とからなるトラツ
キング制御装置。 (2) 前記比較信号の極性を反転制御する手段は
、前記変化する基準信号と前記トラツキングエラ
ー信号とのレベル差に応答して前記比較信号の極
性を反転制御することを特徴とする実用新案登録
請求の範囲第１項記載のトラツキング制御装置。 (3) 前記比較信号の極性を反転制御する手段は
、前記変化する基準信号のピーク値に応答して前
記比較信号の極性を反転制御することを特徴とす
る実用新案登録請求の範囲第１項記載のトラツキ
ング制御装置。[Claims for Utility Model Registration] (1) A constant reference signal and means for controlling the position of the optical spot on the disk by a comparison signal with the tracking error signal; means for generating a signal varying from a slope to a negative slope and from a negative slope to a positive slope; A tracking control device comprising means for controlling the polarity of a comparison signal to be inverted. (2) A utility model characterized in that the means for inverting the polarity of the comparison signal inverts the polarity of the comparison signal in response to a level difference between the changing reference signal and the tracking error signal. A tracking control device according to claim 1. (3) Utility model registration claim 1, wherein the means for inverting the polarity of the comparison signal inverts the polarity of the comparison signal in response to a peak value of the changing reference signal. The tracking control device described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8566185U JPH056573Y2 (en) | 1985-06-06 | 1985-06-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8566185U JPH056573Y2 (en) | 1985-06-06 | 1985-06-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61203424U true JPS61203424U (en) | 1986-12-20 |
| JPH056573Y2 JPH056573Y2 (en) | 1993-02-19 |
Family
ID=30636259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8566185U Expired - Lifetime JPH056573Y2 (en) | 1985-06-06 | 1985-06-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH056573Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100618974B1 (en) * | 1999-08-28 | 2006-08-31 | 삼성전자주식회사 | Track jump control device for optical disc drive and method thereof |
-
1985
- 1985-06-06 JP JP8566185U patent/JPH056573Y2/ja not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100618974B1 (en) * | 1999-08-28 | 2006-08-31 | 삼성전자주식회사 | Track jump control device for optical disc drive and method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH056573Y2 (en) | 1993-02-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU537297B2 (en) | Dithered centre tracking system | |
| JPS61203424U (en) | ||
| JPH0110753Y2 (en) | ||
| JPS61140431U (en) | ||
| JPS58122238U (en) | Tracking servo device in recorded information reading device | |
| JPS62190926U (en) | ||
| JPH0445315U (en) | ||
| JPH0320030U (en) | ||
| JPH0538469Y2 (en) | ||
| JPH0211514U (en) | ||
| JPS632262U (en) | ||
| JPS61187018U (en) | ||
| JPH02117718U (en) | ||
| JPS58155668U (en) | Playback signal time axis error correction device | |
| JPS6211225U (en) | ||
| JPS62147130U (en) | ||
| JPS59125728U (en) | magneto-optical recording device | |
| JPS6183114U (en) | ||
| JPS6247828A (en) | Error signal generator for optical reproducer | |
| JPS61187020U (en) | ||
| JPS63159408U (en) | ||
| JPS58159685U (en) | Tracking servo control device for recorded information reading device | |
| JPS6381577U (en) | ||
| JPS6148423U (en) | ||
| JPS60173131U (en) | Optical recording disc playback device |