JPS62117720U - - Google Patents
Info
- Publication number
- JPS62117720U JPS62117720U JP503486U JP503486U JPS62117720U JP S62117720 U JPS62117720 U JP S62117720U JP 503486 U JP503486 U JP 503486U JP 503486 U JP503486 U JP 503486U JP S62117720 U JPS62117720 U JP S62117720U
- Authority
- JP
- Japan
- Prior art keywords
- servo
- acceleration
- predetermined level
- gain
- 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
- 230000001133 acceleration Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図は、この考案の一実施例を示すブロツク
図である。第２図は、第１図の回路の動作波形図
である。第３図は、第１図の回路の具体例を示す
回路図である。第４図は、この考案をトラツキン
グ制御へ適用する一例を示した回路図である。
１０…加速度センサ、１１４，１１６…トラツ
キングエラー検出用ＰＩＮダイオード、１２２…
ゲインダウン回路、１２４…ゲインアツプ回路。
FIG. 1 is a block diagram showing one embodiment of this invention. FIG. 2 is an operational waveform diagram of the circuit of FIG. 1. FIG. 3 is a circuit diagram showing a specific example of the circuit shown in FIG. 1. FIG. 4 is a circuit diagram showing an example of applying this invention to tracking control. 10... Acceleration sensor, 114, 116... PIN diode for tracking error detection, 122...
Gain down circuit, 124...gain up circuit.
Claims (1)
装置本体に加わる加速度を検出する加速度検出手
段と、 この加速度検出手段の検出出力に基づいて前記
サーボ制御のサーボゲインを可変制御する制御手
段と、 を具備するサーボ回路。 (2) 前記制御手段は、前記検出される加速度が
所定レベルより大きい場合は前記サーボゲインを
通常より高くし、 前記検出される加速度が所定レベルより小さく
、かつ前記サーボ制御のエラー信号が所定レベル
より大きい場合は前記サーボゲインを通常より低
くするものである ことを特徴とする実用新案登録請求の範囲第１項
に記載のサーボ回路。[Claims for Utility Model Registration] (1) Acceleration detection means for detecting acceleration applied to a main body of a device whose position of an actuator is servo-controlled; and a servo gain of the servo control is variable based on the detection output of the acceleration detection means. A servo circuit comprising: a control means for controlling; and a servo circuit. (2) The control means makes the servo gain higher than normal when the detected acceleration is larger than a predetermined level, and when the detected acceleration is smaller than a predetermined level and the error signal of the servo control is at a predetermined level. 2. The servo circuit according to claim 1, wherein the servo gain is lower than normal if the servo gain is larger.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP503486U JPS62117720U (en) | 1986-01-20 | 1986-01-20 | |
| US06/870,074 US4764860A (en) | 1985-06-26 | 1986-06-03 | Servo circuit for an information recording and/or reproducing apparatus |
| EP86108320A EP0207374B1 (en) | 1985-06-26 | 1986-06-19 | Servo circuit for an information recording and/or reproducing apparatus |
| DE8686108320T DE3673894D1 (en) | 1985-06-26 | 1986-06-19 | SERVO CIRCUIT FOR AN INFORMATION RECORDING AND / OR REPLAYING DEVICE. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP503486U JPS62117720U (en) | 1986-01-20 | 1986-01-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62117720U true JPS62117720U (en) | 1987-07-27 |
Family
ID=30786241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP503486U Pending JPS62117720U (en) | 1985-06-26 | 1986-01-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62117720U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03157822A (en) * | 1989-11-15 | 1991-07-05 | Matsushita Commun Ind Co Ltd | Tracking controller |
-
1986
- 1986-01-20 JP JP503486U patent/JPS62117720U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03157822A (en) * | 1989-11-15 | 1991-07-05 | Matsushita Commun Ind Co Ltd | Tracking controller |
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