JPS59161586U - information storage medium - Google Patents

information storage medium

Info

Publication number
JPS59161586U
JPS59161586U JP1983054795U JP5479583U JPS59161586U JP S59161586 U JPS59161586 U JP S59161586U JP 1983054795 U JP1983054795 U JP 1983054795U JP 5479583 U JP5479583 U JP 5479583U JP S59161586 U JPS59161586 U JP S59161586U
Authority
JP
Japan
Prior art keywords
information storage
storage medium
different
medium according
discrimination
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
JP1983054795U
Other languages
Japanese (ja)
Inventor
大友　純一
Original Assignee
株式会社東芝
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 by 株式会社東芝 filed Critical 株式会社東芝
Priority to JP1983054795U priority Critical patent/JPS59161586U/en
Publication of JPS59161586U publication Critical patent/JPS59161586U/en
Pending legal-status Critical Current

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  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図、第２図は基板の両面に記憶層を有する情報記憶
媒体の一例を示す断面図、第３図ａ、　　ｂ。 Ｃはこの考案に係る情報記憶媒体の正面図、断面図、背
面図、第４図はこの考案に係る情報記憶媒体の情報再生
の使用態様を示す概略説明図、第５図は判別部の変形例
としての形状を変えた一例を示す概略説明図である。FIGS. 1 and 2 are cross-sectional views showing an example of an information storage medium having storage layers on both sides of a substrate, and FIGS. 3a and 3b. C is a front view, cross-sectional view, and back view of the information storage medium according to this invention, FIG. 4 is a schematic explanatory diagram showing how the information storage medium according to this invention is used for information reproduction, and FIG. 5 is a modification of the discrimination section. It is a schematic explanatory drawing which shows an example in which the shape as an example was changed.

Claims (4)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）両面側において記憶層を有する情報記憶媒体にお
いて、前記記憶層は表裏面の情報記憶エリア外に、光学
的検知情報が異なるような形態を有する判別部をそれぞ
れ具備することを特徴とする情報記憶媒体。(1) An information storage medium having storage layers on both sides, characterized in that each of the storage layers is provided with a discriminating section outside the information storage area on the front and back sides, each having a form that allows optically detected information to be different. Information storage medium. （２）前記表裏面の判別部の異なる形態は、数量の相違
であることを特徴とする実用新案登録請求の範囲第１項
に記載の情報記憶媒体。(2) The information storage medium according to claim 1, wherein the different forms of the front and back surface discrimination sections are different in quantity. （３）前記表裏面の判別部の数量は、それぞれ偶数と奇
数とであることを特徴とする実用新案登録請求の範囲第
２項に記載の情報記憶媒体。(3) The information storage medium according to claim 2, wherein the numbers of the discrimination parts on the front and back sides are even numbers and odd numbers, respectively. （４）前記表裏面の判別部の異なる形態は、形状の相違
であることを特徴とする実用新案登録請求の範囲第１項
に記載の情報記憶媒体。(4) The information storage medium according to claim 1, wherein the different forms of the discrimination portions on the front and back surfaces are different shapes.
JP1983054795U 1983-04-14 1983-04-14 information storage medium Pending JPS59161586U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1983054795U JPS59161586U (en) 1983-04-14 1983-04-14 information storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1983054795U JPS59161586U (en) 1983-04-14 1983-04-14 information storage medium

Publications (1)

Publication Number Publication Date
JPS59161586U true JPS59161586U (en) 1984-10-29

Family

ID=30185138

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1983054795U Pending JPS59161586U (en) 1983-04-14 1983-04-14 information storage medium

Country Status (1)

Country Link
JP (1) JPS59161586U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57172550A (en) * 1981-04-16 1982-10-23 Matsushita Electric Ind Co Ltd Optical disk

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57172550A (en) * 1981-04-16 1982-10-23 Matsushita Electric Ind Co Ltd Optical disk

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