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
Application number
JP12633188U
Other languages
Japanese (ja)
Other versions
JPH0718058Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1988126331U priority Critical patent/JPH0718058Y2/en
Publication of JPH0250866U publication Critical patent/JPH0250866U/ja
Application granted granted Critical
Publication of JPH0718058Y2 publication Critical patent/JPH0718058Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Rotational Drive Of Disk (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

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)

【実用新案登録請求の範囲】 情報が記録されたデイスクを回転させるデイス
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.
JP1988126331U 1988-09-29 1988-09-29 Disc motor brake circuit Expired - Lifetime JPH0718058Y2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6469278A (en) * 1987-09-07 1989-03-15 Sanyo Electric Co Method of stopping rotor

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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