JPS60261041A - Optical disc - Google Patents

Optical disc

Info

Publication number
JPS60261041A
JPS60261041A JP59115918A JP11591884A JPS60261041A JP S60261041 A JPS60261041 A JP S60261041A JP 59115918 A JP59115918 A JP 59115918A JP 11591884 A JP11591884 A JP 11591884A JP S60261041 A JPS60261041 A JP S60261041A
Authority
JP
Japan
Prior art keywords
information
area
optical disc
rewrite
recorded
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
JP59115918A
Other languages
Japanese (ja)
Inventor
Atsushi Isshiki
一色　篤
Isao Sato
勲 佐藤
Akira Ichinose
亮 一之瀬
Yuzuru Kuroki
譲 黒木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP59115918A priority Critical patent/JPS60261041A/en
Publication of JPS60261041A publication Critical patent/JPS60261041A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085—Pits
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/30—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture with provision for auxiliary signals
    • 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
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/022—Electronic editing of analogue information signals, e.g. audio or video signals
    • G11B27/026—Electronic editing of analogue information signals, e.g. audio or video signals on discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material

Abstract

PURPOSE:To record and protect important information or information requiring no rewrite by providing at least two kinds of areas among an information reproducing exclusive area, an additional area and an erasure rewrite area. CONSTITUTION:The important information, the information requiring no rewrite or the information recorded by an offerer of an optical disc is protected by recording the important information, the information requiring no erasure or the required information recorded by the offerer of the optical disc to the reproduction exclusive use area 2, and new information or the information requiring rewrite is added, corrected or erased by recording them to the erasure rewrite area.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、光学ディスクのような円板状の情°報担体に
情報を光学的に記録および、または再生する光学的情報
記録再生装置のための光学ディスク構造に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an optical information recording/reproducing device for optically recording and/or reproducing information on a disk-shaped information carrier such as an optical disk. The present invention relates to an optical disc structure.

従来例の構成とその問題点 従来、光学ディスクは、光学ディスク製造者があらかじ
め情報を記録しておき、利用者は、再生のみ可能な再生
専用ディスクと、利用者が任意の情報を記録可能である
が、記録された情報を消去できない、追記型ディスクと
、利用者が任意の情報を記録可能であり、記録された情
報を消去し、再度記録可能な消去再書込型ディスクとが
ある。Conventional configurations and their problems Traditionally, optical discs have information recorded in advance by the optical disc manufacturer, and users have two options: read-only discs that can only be played back, and discs that allow users to record any information they want. However, there are two types of discs: write-once discs, in which the recorded information cannot be erased, and erasable/rewritable discs, in which the user can record any information, erase the recorded information, and record it again.

再生専用ディスクにおいては、利用者は情報を書き加え
る事は不可能であるという欠点を有している。A read-only disc has the disadvantage that it is impossible for the user to add information to it.

追記型ディスクにおいては、誤まシのある情報を訂正す
る事は不可能であシ、また記録した情報の一部分のみを
訂正する事は不可能である。In write-once discs, it is impossible to correct erroneous information, and it is also impossible to correct only part of the recorded information.

消去再書込型ディスクにおいては、誤まシのある情報を
訂正し、または消去する事が可能であシ。With erasable and rewritable discs, it is possible to correct or erase erroneous information.

記録された情報の一部分のみの訂正、または加筆が可能
であるが、消去あるいは書き換えの必要のない情報を誤
まって、消去あるいは書き換えてしまうことがあるとい
う問題点を有している。Although it is possible to correct or add only a portion of recorded information, there is a problem in that information that does not need to be erased or rewritten may be mistakenly erased or rewritten.

発明の目的 本発明の光学ディスクは、上記の問題点を解決するため
になされたもので１重要な情報が誤まって、消去あるい
は書き換えられることがなく、また、新しい情報を任意
に記録することが可能な、光学ディスクを提供すること
を目的とするものである。Purpose of the Invention The optical disc of the present invention has been made to solve the above-mentioned problems. 1. Important information cannot be accidentally erased or rewritten, and new information can be recorded arbitrarily. The purpose of this invention is to provide an optical disc that is capable of

発明の構成 本発明は、あらかじめ情報が記録され、利用者は情報を
再生することしかできない再生専用領域と、利用者が情
報を記録できるが、消去あるいは書き換えることができ
ない追記型領域と、利用者が情報を記録することができ
、また情報を消去あるいは書き換えることができる消去
再書込型領域のうち少なくとも２つの領域を備えた光学
ディスクであシ、重要な情報、あるいは、書き換えの必
要のない情報を再生専用領域、または追記型領域に記録
することによシ、保護することができ新しい情報、ある
いは、書き換えの必要な情報を消去再書込型領域に記録
することによシ、情報の追加、訂正、消去を行なうこと
ができるものである。Structure of the Invention The present invention provides a reproduction-only area in which information is recorded in advance and the user can only reproduce the information, a write-once area in which the user can record information but cannot erase or rewrite it, and a write-once area in which the user can record information but cannot erase or rewrite it. An optical disc with at least two erasable and rewritable areas on which information can be recorded and where information can be erased or rewritten. By recording information in a read-only area or a write-once area, you can protect new information, or by recording information that needs to be rewritten in an erase-rewrite area. It allows additions, corrections, and deletions.

実施例の説明 第１図は本発明の第１の実施例における光学ディスクを
示す。第１図において、１は再生専用領域であシ、２は
消去再書込型領域である。DESCRIPTION OF THE EMBODIMENTS FIG. 1 shows an optical disc in a first embodiment of the present invention. In FIG. 1, 1 is a read-only area, and 2 is an erase/rewrite type area.

本実施例において、重要な情報、あるいは消去する必要
のない情報、あるいは光学ディスクの提供者が記録する
必要のある情報を、再生専用領域に記録することによシ
、重要な情報、あるいは消去する必要のない情報、ある
いは光学ディスクの提供者が記録した情報を、保護する
ことができ、また、新しい情報、あるいは書き換える必
要のある情報を、消去再書込型領域に記録することによ
シ、新しい情報、あるいは書き換える必要のある情報を
、追加、訂正、消去することができる。In this embodiment, important information or information that does not need to be erased, or information that the optical disc provider needs to record, can be recorded in the read-only area. Unnecessary information or information recorded by the optical disc provider can be protected, and new information or information that needs to be rewritten can be recorded in the erasure/rewritable area. New information or information that needs to be rewritten can be added, corrected, or deleted.

なお本実施例においては、再生専用領域を光学ディスク
の内周側に、消去再書込型領域を外周側においたが、一
般的に、光学ディスクの原板をカッティングして製造す
る再生専用領域の情報を再生する場合の再生波形の方が
、消去再書込型領域の情報を再生する場合の再生波形よ
りも、良好であり、また、一定速度で回転する光学ディ
スクにおいて、外周側に記録された情報を再生する場合
の再生波形の方が内周側に記録された情報を再生する場
合の再生波形よりも良好であるために、光学ディスクの
内周側に再生専用領域を設けて外周側に消去再書込型領
域を設けた方が、光学ディスクの全領域にわたって良効
な再生波形を得られる為により有効である。In this embodiment, the read-only area was placed on the inner circumferential side of the optical disc, and the erasable/rewritable area was placed on the outer circumferential side, but in general, the read-only area manufactured by cutting the original plate of an optical disc is The reproduction waveform when reproducing information is better than the reproduction waveform when reproducing information in an erase/rewritable area. Since the reproduction waveform when reproducing information recorded on the inner circumference is better than the reproduction waveform when reproducing information recorded on the inner circumference, a reproduction-only area is provided on the inner circumference of the optical disc and It is more effective to provide an erase/rewrite type area in the optical disk because a good reproduction waveform can be obtained over the entire area of the optical disk.

第２図は不発明の第２の実施例における光学ディスクを
示す。第２図において、１は追記型領域であり、３は消
去再書込型領域である。FIG. 2 shows an optical disc in a second embodiment of the invention. In FIG. 2, 1 is a write-once type area, and 3 is an erase/rewrite type area.

本実施例において、重要な情報、あるいは消去する必要
のない情報を、追記型領域に記録することにより、重要
なあるいは消去する必要のない情報を保護することがで
き、また、新しい情報、あるいは書き換える必要のある
情報を、消去再書込型領域に記録することによシ、新し
い情報、あるいは書き換える必要のある情報を、追加、
訂正、消去することができる。In this embodiment, by recording important information or information that does not need to be erased in the write-once area, it is possible to protect important information or information that does not need to be erased. By recording the necessary information in the erasable and rewritable area, you can add new information or information that needs to be rewritten.
Can be corrected or deleted.

なお、第１および第２の実施例において、再生専用領域
、あるいは追記型領域、および消去再書込型領域を光学
ディスクの片面に設けているが、再生専用領域、あるい
は追記型領域、あるいは消去再書込型領域を光学ディス
クの両面に設けてもよいことは言うまでもない。In the first and second embodiments, a read-only area, a write-once area, and an erase/rewrite area are provided on one side of the optical disc. It goes without saying that rewritable areas may be provided on both sides of the optical disc.

また、第１の実施例においては、再生専用領域と、消去
再書込型を設け、第２の実施例においては、追記型領域
と、消去再書込型を設けたが、再生専用領域と追記型領
域を設けた光学ディスクあるいろ再生専用領域と良記型
領域と消去再書込型領域を設けた光学ディスクも有効で
ある。Further, in the first embodiment, a read-only area and an erase/rewrite type are provided, and in the second example, a write once area and an erase/rewrite type are provided. An optical disk provided with a write-once area, or an optical disk provided with a read-only area, a good write area, and an erasable/rewritable area are also effective.

発明の効果 以上の説明から明らかなように、本発明は、一枚の光学
ディスクにおいて、情報の再生専用領域と追記型領域と
消去再書込型領域のうちの少なくとも２種類の領域を設
けることによって、重要な情報あるいは書き換えの必要
のない情報を、記録しかつ保護することが可能となり、
また、新しい情報あるいは、書き換えの必要のある情報
を、記録、訂正、消去することが可能となる。Effects of the Invention As is clear from the above explanation, the present invention provides at least two types of areas among a read-only area, a write-once area, and an erasable/rewritable area in one optical disc. This makes it possible to record and protect important information or information that does not need to be rewritten.
Furthermore, it becomes possible to record, correct, and erase new information or information that needs to be rewritten.

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

第１図は本発明の第１の実施例における光学ディスクの
平面図、第２図は本発明の第２の実施例における光学デ
ィスクの平面図である。 １・・・・・・再生専用領域、２・・・・・・消去再書
込型頭板３・・・・・追記型領域。 代理人の氏名　弁理士　中　尾　敏　男　ほか１名第１
図 第２図FIG. 1 is a plan view of an optical disk according to a first embodiment of the invention, and FIG. 2 is a plan view of an optical disk according to a second embodiment of the invention. 1... Read-only area, 2... Erase/rewrite type headboard 3... Write-once type area. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2

Claims (1)

【特許請求の範囲】[Claims] 再生専用の情報が記録された第１の領域と、情報を記録
した後に、情報を消去し再度情報を記録する事をくり返
えし行なえる第２の領域と、再生専用の情報を一度だけ
記録することができる第３の領域のうち少々くとも２つ
の領域を設けた事を特徴とする光学ディスク。A first area in which playback-only information is recorded, a second area where information can be erased and recorded again after recording information, and a second area in which playback-only information is recorded only once. An optical disc characterized in that at least two of the third recordable areas are provided.
JP59115918A 1984-06-06 1984-06-06 Optical disc Pending JPS60261041A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59115918A JPS60261041A (en) 1984-06-06 1984-06-06 Optical disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59115918A JPS60261041A (en) 1984-06-06 1984-06-06 Optical disc

Publications (1)

Publication Number Publication Date
JPS60261041A true JPS60261041A (en) 1985-12-24

Family

ID=14674431

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59115918A Pending JPS60261041A (en) 1984-06-06 1984-06-06 Optical disc

Country Status (1)

Country Link
JP (1) JPS60261041A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61193526U (en) * 1985-05-24 1986-12-02
JPS62250532A (en) * 1986-04-23 1987-10-31 Teac Co Optical disk
JPS6344334A (en) * 1986-08-12 1988-02-25 Dainippon Printing Co Ltd Optical card
EP0232134A3 (en) * 1986-02-07 1988-12-28 Matsushita Electric Industrial Co., Ltd. Optical disc and disc drive apparatus for writing/reading data into/from the disc
JPH01282757A (en) * 1988-05-09 1989-11-14 Hitachi Ltd Optical disk
JPH02239440A (en) * 1989-03-14 1990-09-21 Fujitsu Ltd Optical disk
US5173886A (en) * 1986-02-07 1992-12-22 Matsushita Electric Industrial Co., Ltd. Composite optical disc having both a data read-only area and a data rewritable area, and a recording/reproducing system for use therewith

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61193526U (en) * 1985-05-24 1986-12-02
EP0232134A3 (en) * 1986-02-07 1988-12-28 Matsushita Electric Industrial Co., Ltd. Optical disc and disc drive apparatus for writing/reading data into/from the disc
US5023854A (en) * 1986-02-07 1991-06-11 Matsushita Electric Industrial Co., Ltd. Disc having a data read-only area and a data recording arm and a recording reproducing system therefor
US5173886A (en) * 1986-02-07 1992-12-22 Matsushita Electric Industrial Co., Ltd. Composite optical disc having both a data read-only area and a data rewritable area, and a recording/reproducing system for use therewith
JPS62250532A (en) * 1986-04-23 1987-10-31 Teac Co Optical disk
JPS6344334A (en) * 1986-08-12 1988-02-25 Dainippon Printing Co Ltd Optical card
JPH01282757A (en) * 1988-05-09 1989-11-14 Hitachi Ltd Optical disk
JPH02239440A (en) * 1989-03-14 1990-09-21 Fujitsu Ltd Optical disk

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