JPS6190023U - - Google Patents

Info

Publication number
JPS6190023U
JPS6190023U JP17633784U JP17633784U JPS6190023U JP S6190023 U JPS6190023 U JP S6190023U JP 17633784 U JP17633784 U JP 17633784U JP 17633784 U JP17633784 U JP 17633784U JP S6190023 U JPS6190023 U JP S6190023U
Authority
JP
Japan
Prior art keywords
objective lens
tracking coil
pick
pulse
period
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
JP17633784U
Other languages
English (en)
Other versions
JPH0329775Y2 (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 JP17633784U priority Critical patent/JPH0329775Y2/ja
Publication of JPS6190023U publication Critical patent/JPS6190023U/ja
Application granted granted Critical
Publication of JPH0329775Y2 publication Critical patent/JPH0329775Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)

Description

【図面の簡単な説明】
第１図は、本考案の一実施例を示す回路図、第
２図イ乃至ハはその説明に供する為の模型図及び
第３図イ乃至ニは第１図の各部の波形を示す特性
図である。 主な図番の説明、３…駆動信号発生回路、５…
トラツキングコイル、６，７…比較回路、８…微
分回路、９…単安定マルチバイブレータ、１０…
短絡トランジスタ。

Claims (1)

    【実用新案登録請求の範囲】
  1. ピツクアツプ本体をモータで駆動してピツクア
    ツプをデイスクの径方向に粗送りし、その間トラ
    ツキングコイルにトラツキング駆動信号を印加し
    て対物レンズの位置制御を行うデイスクプレーヤ
    において、前記対物レンズの位置制御を行う為に
    トラツキングコイルに印加される駆動電圧が所定
    レベルを越えたことを検出する手段と、該手段の
    出力に応じて前記対物レンズの自由振動の周期の
    略1/2の幅を有するパルスを発生させる手段と、
    該パルスの発生期間中前記駆動電圧が前記トラツ
    キングコイルに印加されるのを停止する手段とを
    備えることを特徴とするデイスクプレーヤ。
JP17633784U 1984-11-20 1984-11-20 Expired JPH0329775Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17633784U JPH0329775Y2 (ja) 1984-11-20 1984-11-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17633784U JPH0329775Y2 (ja) 1984-11-20 1984-11-20

Publications (2)

Publication Number Publication Date
JPS6190023U true JPS6190023U (ja) 1986-06-11
JPH0329775Y2 JPH0329775Y2 (ja) 1991-06-25

Family

ID=30733936

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17633784U Expired JPH0329775Y2 (ja) 1984-11-20 1984-11-20

Country Status (1)

Country Link
JP (1) JPH0329775Y2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210021574A (ko) 2018-06-26 2021-02-26 니폰 가가쿠 고교 가부시키가이샤 부열팽창재, 그의 제조 방법 및 복합 재료

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210021574A (ko) 2018-06-26 2021-02-26 니폰 가가쿠 고교 가부시키가이샤 부열팽창재, 그의 제조 방법 및 복합 재료

Also Published As

Publication number Publication date
JPH0329775Y2 (ja) 1991-06-25

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