JPS6082727U - Servo circuit for optical pickup - Google Patents
Servo circuit for optical pickupInfo
- Publication number
- JPS6082727U JPS6082727U JP17575883U JP17575883U JPS6082727U JP S6082727 U JPS6082727 U JP S6082727U JP 17575883 U JP17575883 U JP 17575883U JP 17575883 U JP17575883 U JP 17575883U JP S6082727 U JPS6082727 U JP S6082727U
- Authority
- JP
- Japan
- Prior art keywords
- optical pickup
- servo circuit
- signal
- outputs
- limiter
- 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
Landscapes
- Optical Recording Or Reproduction (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図は従来例の光ピツクアップのサーボ系を示すブロ
ック図、第2図は本考案に係る光ピツクアップ用サーボ
回路の実施例を示す第1図に対応′ したブロック図、
第3図は第2図のリミッタと補償回路を併せた具体的回
路図、第4図は第2図の回路図中の信号のタイムチャー
トである。
64.66・・・・・・ツェナーダイオード、68・・
・・・・アナログスイッチ。FIG. 1 is a block diagram showing a conventional optical pickup servo system, and FIG. 2 is a block diagram corresponding to FIG. 1 showing an embodiment of the optical pickup servo circuit according to the present invention.
FIG. 3 is a specific circuit diagram combining the limiter and compensation circuit shown in FIG. 2, and FIG. 4 is a time chart of signals in the circuit diagram shown in FIG. 2. 64.66... Zener diode, 68...
...Analog switch.
Claims (1)
信号を出力する光ピツクアップ用サーボ回路において、
一定値以上のエラー信号レベルを規制するリミッタと、
光ピツクアップからのピット有無検出信号によりデータ
のドロップアウトを検出してリミッタ作動信号を出力す
るドロップアウト検出回路と、を有することを特徴とす
る光ピツクアップ用サーボ回路。In an optical pickup servo circuit that inputs an optical pickup position error signal and outputs an error correction signal,
a limiter that regulates the error signal level above a certain value;
A servo circuit for an optical pickup, comprising: a dropout detection circuit that detects data dropout using a pit presence/absence detection signal from an optical pickup and outputs a limiter activation signal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17575883U JPS6082727U (en) | 1983-11-14 | 1983-11-14 | Servo circuit for optical pickup |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17575883U JPS6082727U (en) | 1983-11-14 | 1983-11-14 | Servo circuit for optical pickup |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6082727U true JPS6082727U (en) | 1985-06-07 |
JPH0337140Y2 JPH0337140Y2 (en) | 1991-08-06 |
Family
ID=30382290
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17575883U Granted JPS6082727U (en) | 1983-11-14 | 1983-11-14 | Servo circuit for optical pickup |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6082727U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5845666A (en) * | 1981-09-07 | 1983-03-16 | Sony Corp | Servo circuit for disc reproducer |
-
1983
- 1983-11-14 JP JP17575883U patent/JPS6082727U/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5845666A (en) * | 1981-09-07 | 1983-03-16 | Sony Corp | Servo circuit for disc reproducer |
Also Published As
Publication number | Publication date |
---|---|
JPH0337140Y2 (en) | 1991-08-06 |
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