JPS6172727U - - Google Patents

Info

Publication number
JPS6172727U
JPS6172727U JP1984156703U JP15670384U JPS6172727U JP S6172727 U JPS6172727 U JP S6172727U JP 1984156703 U JP1984156703 U JP 1984156703U JP 15670384 U JP15670384 U JP 15670384U JP S6172727 U JPS6172727 U JP S6172727U
Authority
JP
Japan
Prior art keywords
signal recording
shaped medium
portions
disk
utility
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
JP1984156703U
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 JP1984156703U priority Critical patent/JPS6172727U/ja
Publication of JPS6172727U publication Critical patent/JPS6172727U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Optical Recording Or Reproduction (AREA)

Description

【図面の簡単な説明】
第１図、第２図は、実施例の平面図、第３図は
情報読取装置のブロツク図、第４図は指示部の回
路ブロツク図、第５図は、第４図における波形図
、第６図は従来の情報読取装置のブロツク図、第
７図は動作説明のための図である。 １，５…デイスク状媒体、３，７…非信号記録
部分、４，８…反射率の異なるマーク部。

Claims (1)

    【実用新案登録請求の範囲】
  1. 非信号記録部分上に形成され、他の部分とは反
    対率の異なるマーク部を備えるデイスク状媒体。
JP1984156703U 1984-10-17 1984-10-17 Pending JPS6172727U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1984156703U JPS6172727U (ja) 1984-10-17 1984-10-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1984156703U JPS6172727U (ja) 1984-10-17 1984-10-17

Publications (1)

Publication Number Publication Date
JPS6172727U true JPS6172727U (ja) 1986-05-17

Family

ID=30714709

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1984156703U Pending JPS6172727U (ja) 1984-10-17 1984-10-17

Country Status (1)

Country Link
JP (1) JPS6172727U (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5625262A (en) * 1979-08-08 1981-03-11 Toshiba Corp Disk memory control system
JPS59210568A (ja) * 1984-04-17 1984-11-29 Matsushita Electric Ind Co Ltd 高密度デイスクプレ−ヤ

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5625262A (en) * 1979-08-08 1981-03-11 Toshiba Corp Disk memory control system
JPS59210568A (ja) * 1984-04-17 1984-11-29 Matsushita Electric Ind Co Ltd 高密度デイスクプレ−ヤ

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