JPS6161668U - - Google Patents

Info

Publication number
JPS6161668U
JPS6161668U JP1984145906U JP14590684U JPS6161668U JP S6161668 U JPS6161668 U JP S6161668U JP 1984145906 U JP1984145906 U JP 1984145906U JP 14590684 U JP14590684 U JP 14590684U JP S6161668 U JPS6161668 U JP S6161668U
Authority
JP
Japan
Prior art keywords
reference signal
reproducing apparatus
output
optical information
detection means
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
JP1984145906U
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 JP1984145906U priority Critical patent/JPS6161668U/ja
Priority to US06/776,676 priority patent/US4674072A/en
Publication of JPS6161668U publication Critical patent/JPS6161668U/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/24—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by sensing features on the record carrier other than the transducing track ; sensing signals or marks recorded by another method than the main recording

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

Description

【図面の簡単な説明】
第１図は本考案の一実施例の構成図、第２図お
よび第３図は同実施例の動作を示す波形図、第４
図は従来装置の一例の構成図、第５図は記録媒体
の平面図、第６図および第７図は第４図に示す構
成例の動作を説明する波形図である。 １……デイスク、２……クランプ、３……モー
タ、４……光反射部、５……フオトリフレクタ、
６……比較器。

Claims (1)

    【実用新案登録請求の範囲】
  1. 情報を光学的に記録又は再生する光情報記録再
    生装置において、記録媒体に設けられたインデツ
    クスマークを検出する検出手段と、この検出手段
    の出力をローパスフイルタを通して参照信号とし
    、この参照信号と前記検出手段の出力とを比較し
    てインデツクスパルスを出力する手段とを備える
    ことを特徴とする光情報記録再生装置。
JP1984145906U 1984-09-28 1984-09-28 Pending JPS6161668U (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1984145906U JPS6161668U (ja) 1984-09-28 1984-09-28
US06/776,676 US4674072A (en) 1984-09-28 1985-09-16 Index pulse generator capable of producing an index pulse of stabilized nature for use in optical information recording and reproduction systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1984145906U JPS6161668U (ja) 1984-09-28 1984-09-28

Publications (1)

Publication Number Publication Date
JPS6161668U true JPS6161668U (ja) 1986-04-25

Family

ID=15395796

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1984145906U Pending JPS6161668U (ja) 1984-09-28 1984-09-28

Country Status (2)

Country Link
US (1) US4674072A (ja)
JP (1) JPS6161668U (ja)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4339727A (en) * 1978-03-07 1982-07-13 Nippon Electric Co., Ltd. Waveform converting circuit
EP0054438B1 (en) * 1980-12-17 1985-11-06 Matsushita Electric Industrial Co., Ltd. Optical disk having an index mark

Also Published As

Publication number Publication date
US4674072A (en) 1987-06-16

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