JPH0320031U - - Google Patents

Info

Publication number
JPH0320031U
JPH0320031U JP7895889U JP7895889U JPH0320031U JP H0320031 U JPH0320031 U JP H0320031U JP 7895889 U JP7895889 U JP 7895889U JP 7895889 U JP7895889 U JP 7895889U JP H0320031 U JPH0320031 U JP H0320031U
Authority
JP
Japan
Prior art keywords
detecting
optical disk
reflected light
detecting means
pits
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
Application number
JP7895889U
Other languages
English (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 JP7895889U priority Critical patent/JPH0320031U/ja
Publication of JPH0320031U publication Critical patent/JPH0320031U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (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構成図、第2
図はその動作説明に供する信号波形図である。 1……光デイスク、3……光ヘツド、4……ヘ
ツドアンプ、7……ピツト間信号発生器、8……
サンプルホールド回路、9……レーザ変調器、1
3……コンパレータ。

Claims (1)

    【実用新案登録請求の範囲】
  1. 光デイスクに照射したレーザ光ビームの反射光
    によつて情報の記録及び読み出しを行う追記型光
    デイスク装置に於いて、上記反射光によりプツシ
    ユプル信号を検出する第1の検出手段と、再生モ
    ード時に上記反射光によりピツトとピツトの中間
    部分を検出する第2の検出手段と、記録モード時
    に記録すべきピツトとピツトの中間部分を検出す
    る第3の検出手段とを有し、前記第2及び第3の
    検出手段による検出信号で前記第1の検出手段に
    よるプツシユプル信号をサンプルホールドするこ
    とを特徴とする追記型光デイスク装置。
JP7895889U 1989-07-04 1989-07-04 Pending JPH0320031U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7895889U JPH0320031U (ja) 1989-07-04 1989-07-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7895889U JPH0320031U (ja) 1989-07-04 1989-07-04

Publications (1)

Publication Number Publication Date
JPH0320031U true JPH0320031U (ja) 1991-02-27

Family

ID=31622692

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7895889U Pending JPH0320031U (ja) 1989-07-04 1989-07-04

Country Status (1)

Country Link
JP (1) JPH0320031U (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6032140A (ja) * 1983-07-29 1985-02-19 Ricoh Co Ltd 光情報記録再生装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6032140A (ja) * 1983-07-29 1985-02-19 Ricoh Co Ltd 光情報記録再生装置

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