JPH0340655U - - Google Patents

Info

Publication number
JPH0340655U
JPH0340655U JP10132189U JP10132189U JPH0340655U JP H0340655 U JPH0340655 U JP H0340655U JP 10132189 U JP10132189 U JP 10132189U JP 10132189 U JP10132189 U JP 10132189U JP H0340655 U JPH0340655 U JP H0340655U
Authority
JP
Japan
Prior art keywords
synchronization signal
disk
gain
signal
detected
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
JP10132189U
Other languages
English (en)
Other versions
JPH0621081Y2 (ja
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 JP10132189U priority Critical patent/JPH0621081Y2/ja
Publication of JPH0340655U publication Critical patent/JPH0340655U/ja
Application granted granted Critical
Publication of JPH0621081Y2 publication Critical patent/JPH0621081Y2/ja
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】
図は本考案のスピンドルモータサーボ制御装置
を含むＣＤプレーヤの要部ブロツク図である。 １……ＣＤ、４……同期信号検出器、５……擬
時同期信号発生部、７……ＣＬＶ回路、１１……
システムコントローラ、１２……デイスクサイズ
センサ、１３……ゲイン切換器、１４……アンド
ゲート。

Claims (1)

  1. 【実用新案登録請求の範囲】 デイスクから読み取つた信号に含まれる同期信
    号を検出する同期信号検出回路、 同期信号が検出できない場合において擬似同期
    信号を発生する擬似同期信号発生器、 同期信号又は擬似同期信号とシステムクロツク
    信号を用いて線速度一定でスピンドルモータを回
    転制御する線速度一定制御回路、 デイスクのサイズを検出するセンサ、 デイスクが小のときスピンドルモータサーボ系
    のゲインを下げるゲイン切換回路、 同期信号が検出されていない時にはデイスクが
    小であつてもゲインを下げず、同期信号が検出さ
    れた時にゲインを下げる制御信号を発生するゲイ
    ン切換信号発生部を有することを特徴とするスピ
    ンドルモータサーボ制御装置。
JP10132189U 1989-08-30 1989-08-30 スピンドルモータサーボ制御装置 Expired - Lifetime JPH0621081Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10132189U JPH0621081Y2 (ja) 1989-08-30 1989-08-30 スピンドルモータサーボ制御装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10132189U JPH0621081Y2 (ja) 1989-08-30 1989-08-30 スピンドルモータサーボ制御装置

Publications (2)

Publication Number Publication Date
JPH0340655U true JPH0340655U (ja) 1991-04-18
JPH0621081Y2 JPH0621081Y2 (ja) 1994-06-01

Family

ID=31650280

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10132189U Expired - Lifetime JPH0621081Y2 (ja) 1989-08-30 1989-08-30 スピンドルモータサーボ制御装置

Country Status (1)

Country Link
JP (1) JPH0621081Y2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007265576A (ja) * 2006-03-29 2007-10-11 Teac Corp ディスク装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007265576A (ja) * 2006-03-29 2007-10-11 Teac Corp ディスク装置

Also Published As

Publication number Publication date
JPH0621081Y2 (ja) 1994-06-01

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term