JPH0250866U - - Google Patents
Info
- Publication number
- JPH0250866U JPH0250866U JP12633188U JP12633188U JPH0250866U JP H0250866 U JPH0250866 U JP H0250866U JP 12633188 U JP12633188 U JP 12633188U JP 12633188 U JP12633188 U JP 12633188U JP H0250866 U JPH0250866 U JP H0250866U
- Authority
- JP
- Japan
- Prior art keywords
- disk motor
- disk
- time
- circuit
- motor 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 5
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 1
Landscapes
- Rotational Drive Of Disk (AREA)
Description
第1図及び第2図はこの考案に係るデイスクモ
ータのブレーキ回路の実施例を示し、第1図はブ
ロツク図、第2図はデイスクの回転速度の時間的
減速特性を示した特性図である。
主な符号の説明、1……デイスク、2……ピツ
クアツプ、3……デイスクモータ、4……プリア
ンプ、5……ピツクアツプサーボ回路、6……デ
イスクモータ制御回路、7……デイスクモータ駆
動回路、8……減速検出回路、9……ロジツク信
号発生回路、10……直径8cmのデイスク、11
……直径12cmのデイスク。
Figures 1 and 2 show an embodiment of the disc motor brake circuit according to this invention, with Figure 1 being a block diagram and Figure 2 being a characteristic diagram showing the temporal deceleration characteristics of the rotational speed of the disc. . Explanation of main symbols: 1...Disk, 2...Pickup, 3...Disk motor, 4...Preamplifier, 5...Pickup servo circuit, 6...Disc motor control circuit, 7...Disc motor drive circuit, 8...Deceleration detection circuit, 9...Logic signal generation circuit, 10...8 cm diameter disk, 11
...A disk with a diameter of 12 cm.
Claims (1)
クモータと、記録された情報を読み取るピツクア
ツプと、読み取つた情報信号によりデイスクモー
タを規定の回転で回転させるデイスクモータ制御
回路と、このデイスクモータ制御回路に対してデ
イスクモータの起動、停止及び制御を指示するロ
ジツク信号発生回路と、上記ピツクアツプで読み
取つた情報信号よりデイスクモータの回転があら
かじめ設定された回転速度より遅くなつた事を検
出する減速検出回路より構成したデイスクモータ
の制御システムにおいて、 上記ロジツク信号発生回路よりデイスクモータ
制御回路に対して停止命令を送つた時から減速検
出回路があらかじめ設定された速度より遅くなつ
た事を検出する検出手段と、この検出するまでの
時間を計測する時間計測手段と、この計測時間に
よつて検出時以降の停止命令を継読し送り続ける
時間を設定する時間設定手段とを設けて、使用デ
イスクによつてデイスクの停止時間を変えて停止
するように構成したことを特徴とするデイスクモ
ータのブレーキ回路。[Claim for Utility Model Registration] A disk motor that rotates a disk on which information is recorded, a pick-up that reads the recorded information, and a disk motor control circuit that rotates the disk motor at a specified rotation based on the read information signal, This logic signal generation circuit instructs the disk motor control circuit to start, stop, and control the disk motor, and the information signal read by the above pickup indicates that the rotation of the disk motor has become slower than the preset rotation speed. In a disk motor control system configured with a deceleration detection circuit, the deceleration detection circuit detects that the speed has become slower than a preset speed from the time the logic signal generation circuit sends a stop command to the disk motor control circuit. A detecting means for detecting, a time measuring means for measuring the time until the detection, and a time setting means for setting the time to continue reading and sending the stop command after the detection based on the measured time, A brake circuit for a disk motor, characterized in that the brake circuit for a disk motor is configured to change the stopping time of the disk depending on the disk used.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988126331U JPH0718058Y2 (en) | 1988-09-29 | 1988-09-29 | Disc motor brake circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988126331U JPH0718058Y2 (en) | 1988-09-29 | 1988-09-29 | Disc motor brake circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0250866U true JPH0250866U (en) | 1990-04-10 |
JPH0718058Y2 JPH0718058Y2 (en) | 1995-04-26 |
Family
ID=31377762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1988126331U Expired - Lifetime JPH0718058Y2 (en) | 1988-09-29 | 1988-09-29 | Disc motor brake circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0718058Y2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02240865A (en) * | 1989-03-14 | 1990-09-25 | Sanyo Electric Co Ltd | Disk rotation controller |
JPH04328363A (en) * | 1991-04-26 | 1992-11-17 | Nippon Columbia Co Ltd | Rotation stopping device for player |
JP2003178513A (en) * | 2001-12-11 | 2003-06-27 | Sanyo Electric Co Ltd | Optical disk reproducing device |
JP2004158104A (en) * | 2002-11-06 | 2004-06-03 | Funai Electric Co Ltd | Optical disk playback device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6469278A (en) * | 1987-09-07 | 1989-03-15 | Sanyo Electric Co | Method of stopping rotor |
-
1988
- 1988-09-29 JP JP1988126331U patent/JPH0718058Y2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6469278A (en) * | 1987-09-07 | 1989-03-15 | Sanyo Electric Co | Method of stopping rotor |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02240865A (en) * | 1989-03-14 | 1990-09-25 | Sanyo Electric Co Ltd | Disk rotation controller |
JPH04328363A (en) * | 1991-04-26 | 1992-11-17 | Nippon Columbia Co Ltd | Rotation stopping device for player |
JP2003178513A (en) * | 2001-12-11 | 2003-06-27 | Sanyo Electric Co Ltd | Optical disk reproducing device |
JP2004158104A (en) * | 2002-11-06 | 2004-06-03 | Funai Electric Co Ltd | Optical disk playback device |
Also Published As
Publication number | Publication date |
---|---|
JPH0718058Y2 (en) | 1995-04-26 |
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