JPS6456017U - - Google Patents
Info
- Publication number
- JPS6456017U JPS6456017U JP15230187U JP15230187U JPS6456017U JP S6456017 U JPS6456017 U JP S6456017U JP 15230187 U JP15230187 U JP 15230187U JP 15230187 U JP15230187 U JP 15230187U JP S6456017 U JPS6456017 U JP S6456017U
- Authority
- JP
- Japan
- Prior art keywords
- gain
- servo circuit
- circuit
- optical pickup
- detection device
- 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
- 238000001514 detection method Methods 0.000 claims 2
- 230000003287 optical effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
図は何れも本考案の一実施例を示すもので、第
１図は要部回路図、第２図は要部斜視図である。
１……差動増幅器、４……振動センサー、６，
７，８……コンパレータ、トランジスタ、インピ
ーダンス（ゲイン変更回路）。
Each figure shows an embodiment of the present invention, with FIG. 1 being a circuit diagram of the main part, and FIG. 2 being a perspective view of the main part. 1...Differential amplifier, 4...Vibration sensor, 6,
7, 8... Comparator, transistor, impedance (gain change circuit).
Claims (1)
及び若しくはフオーカスサーボ回路のゲインを変
更するゲイン変更回路と、前記光ピツクアツプ装
置の振動を検出する振動検出装置とを有し、この
振動検出装置により所定の振動が検出された時、
前記ゲイン変更回路でもつてサーボ回路のゲイン
を増大させる構成としたことを特徴とするピツク
アツプサーボ回路。 It has a gain change circuit that changes the gain of a tracking servo circuit and/or a focus servo circuit of an optical pickup device, and a vibration detection device that detects vibrations of the optical pickup device, and the vibration detection device detects a predetermined vibration. When detected,
A pick-up servo circuit characterized in that the gain changing circuit is configured to increase the gain of the servo circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15230187U JPS6456017U (en) | 1987-10-05 | 1987-10-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15230187U JPS6456017U (en) | 1987-10-05 | 1987-10-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6456017U true JPS6456017U (en) | 1989-04-06 |
Family
ID=31427103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15230187U Pending JPS6456017U (en) | 1987-10-05 | 1987-10-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6456017U (en) |
-
1987
- 1987-10-05 JP JP15230187U patent/JPS6456017U/ja active Pending
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