JPS63157859U - - Google Patents
Info
- Publication number
- JPS63157859U JPS63157859U JP5089187U JP5089187U JPS63157859U JP S63157859 U JPS63157859 U JP S63157859U JP 5089187 U JP5089187 U JP 5089187U JP 5089187 U JP5089187 U JP 5089187U JP S63157859 U JPS63157859 U JP S63157859U
- Authority
- JP
- Japan
- Prior art keywords
- amount
- braking
- disc
- mentioned
- disc player
- 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
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Rotational Drive Of Disk (AREA)
Description
第1図は本考案の実施例を示すブロツク図、第
2図は本考案を原理的に説明するための特性図、
第3図は他の実施例に用いられる特性図、第4図
はピツクアツプの位置に対するブレーキ量の特性
図である。
なお図面に用いた符号において、1……デイス
ク、2……ドライブ回路、3……スピンドルモー
タ、4……ピツクアツプ、6……位置情報読取り
回路、7……ブレーキ時間演算回路、8……タイ
マ用カウンタ、である。
Fig. 1 is a block diagram showing an embodiment of the invention, Fig. 2 is a characteristic diagram for explaining the principle of the invention,
FIG. 3 is a characteristic diagram used in another embodiment, and FIG. 4 is a characteristic diagram of the brake amount with respect to the pickup position. In the symbols used in the drawings, 1...disk, 2...drive circuit, 3...spindle motor, 4...pickup, 6...position information reading circuit, 7...brake time calculation circuit, 8...timer counter.
Claims (1)
イスクプレーヤにおいて、 停止命令信号に基いて再生信号からデイスクに
対するピツクアツプの位置を検出する手段と、 上記検出された位置情報に基いて必要なブレー
キ量を演算する手段と、 上記デイスクを駆動するモータに与えられるブ
レーキ量を計測する手段とを設け、 上記計測されたブレーキ量が上記演算されたブ
レーキ量に達したとき、上記モータの駆動回路の
動作を停止させるようにしたデイスクプレーヤの
ブレーキ制御装置。[Scope of Claim for Utility Model Registration] In a disc player that plays back a disc that is rotated at a constant linear velocity, means for detecting the position of a pickup relative to the disc from a playback signal based on a stop command signal; means for calculating the necessary amount of braking based on the above-mentioned brake amount, and means for measuring the amount of braking applied to the motor that drives the disk, and when the measured amount of braking reaches the calculated amount of braking, the above-mentioned A brake control device for a disc player that stops the operation of the motor drive circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5089187U JPS63157859U (en) | 1987-04-03 | 1987-04-03 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5089187U JPS63157859U (en) | 1987-04-03 | 1987-04-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63157859U true JPS63157859U (en) | 1988-10-17 |
Family
ID=30874663
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5089187U Pending JPS63157859U (en) | 1987-04-03 | 1987-04-03 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63157859U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02260281A (en) * | 1989-03-31 | 1990-10-23 | Sanyo Electric Co Ltd | Method for braking rotation of disk reproducing device and rotation control device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5758269A (en) * | 1980-09-24 | 1982-04-07 | Sony Corp | Device for reproducing disk |
JPS5956262A (en) * | 1982-09-27 | 1984-03-31 | Toshiba Corp | Disc device |
JPS59107453A (en) * | 1982-12-09 | 1984-06-21 | Toshiba Corp | Disk record reproducer |
JPS61278082A (en) * | 1985-06-04 | 1986-12-08 | Matsushita Electric Ind Co Ltd | Braking device for information reproducing device |
-
1987
- 1987-04-03 JP JP5089187U patent/JPS63157859U/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5758269A (en) * | 1980-09-24 | 1982-04-07 | Sony Corp | Device for reproducing disk |
JPS5956262A (en) * | 1982-09-27 | 1984-03-31 | Toshiba Corp | Disc device |
JPS59107453A (en) * | 1982-12-09 | 1984-06-21 | Toshiba Corp | Disk record reproducer |
JPS61278082A (en) * | 1985-06-04 | 1986-12-08 | Matsushita Electric Ind Co Ltd | Braking device for information reproducing device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02260281A (en) * | 1989-03-31 | 1990-10-23 | Sanyo Electric Co Ltd | Method for braking rotation of disk reproducing device and rotation control device |
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