JPS60242532A - 情報記録担体 - Google Patents

情報記録担体

Info

Publication number
JPS60242532A
JPS60242532A JP60010857A JP1085785A JPS60242532A JP S60242532 A JPS60242532 A JP S60242532A JP 60010857 A JP60010857 A JP 60010857A JP 1085785 A JP1085785 A JP 1085785A JP S60242532 A JPS60242532 A JP S60242532A
Authority
JP
Japan
Prior art keywords
pit
information
output
depth
lambda
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.)
Granted
Application number
JP60010857A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0458095B2 (en, 2012
Inventor
Toshio Sugiyama
俊夫 杉山
Kazuo Shigematsu
和男 重松
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP60010857A priority Critical patent/JPS60242532A/ja
Publication of JPS60242532A publication Critical patent/JPS60242532A/ja
Publication of JPH0458095B2 publication Critical patent/JPH0458095B2/ja
Granted 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing
    • G11B7/0051—Reproducing involving phase depth effects

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Optical Recording Or Reproduction (AREA)
JP60010857A 1985-01-25 1985-01-25 情報記録担体 Granted JPS60242532A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60010857A JPS60242532A (ja) 1985-01-25 1985-01-25 情報記録担体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60010857A JPS60242532A (ja) 1985-01-25 1985-01-25 情報記録担体

Publications (2)

Publication Number Publication Date
JPS60242532A true JPS60242532A (ja) 1985-12-02
JPH0458095B2 JPH0458095B2 (en, 2012) 1992-09-16

Family

ID=11762021

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60010857A Granted JPS60242532A (ja) 1985-01-25 1985-01-25 情報記録担体

Country Status (1)

Country Link
JP (1) JPS60242532A (en, 2012)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63195835A (ja) * 1987-02-09 1988-08-12 Nippon Muki Kk 記録材料の情報記録方法
JPS63173724U (en, 2012) * 1987-04-30 1988-11-11
US6760299B1 (en) 1999-06-30 2004-07-06 Sharp Kabushiki Kaisha Optical disc having pits of different depth formed therein, optical disc device for reproducing the same, and method of reproduction
US7050383B2 (en) 2000-04-04 2006-05-23 Sharp Kabushiki Kaisha Optical recording medium recorded with information in depth direction, and method and apparatus of reproduction therefrom
KR100703123B1 (ko) * 1998-12-07 2007-04-05 소니 가부시끼 가이샤 광기록매체

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63195835A (ja) * 1987-02-09 1988-08-12 Nippon Muki Kk 記録材料の情報記録方法
JPS63173724U (en, 2012) * 1987-04-30 1988-11-11
KR100703123B1 (ko) * 1998-12-07 2007-04-05 소니 가부시끼 가이샤 광기록매체
KR100797971B1 (ko) * 1998-12-07 2008-01-24 소니 가부시끼 가이샤 광기록매체, 광기록매체의 기록장치 및 그 기록방법과재생장치 및 그 재생방법
US6760299B1 (en) 1999-06-30 2004-07-06 Sharp Kabushiki Kaisha Optical disc having pits of different depth formed therein, optical disc device for reproducing the same, and method of reproduction
US7072251B2 (en) 1999-06-30 2006-07-04 Sharp Kabushiki Kaisha Optical disc having pits of different depth formed therein, optical disc device for reproducing the same, and method of reproduction
EP1067523A3 (en) * 1999-06-30 2007-05-23 Sharp Kabushiki Kaisha Optical disc having pits of different depth formed therein, optical disc device for reproduction the same, and method of reproduction
EP1950750A1 (en) * 1999-06-30 2008-07-30 Sharp Kabushiki Kaisha Optical disc having pits of different depth formed therein, optical disc device for reproducing the same, and method of reproduction
US7050383B2 (en) 2000-04-04 2006-05-23 Sharp Kabushiki Kaisha Optical recording medium recorded with information in depth direction, and method and apparatus of reproduction therefrom
US7580329B2 (en) 2000-04-04 2009-08-25 Sharp Kabushiki Kaisha Optical recording medium recorded with information in depth direction, and method and apparatus of reproduction therefrom

Also Published As

Publication number Publication date
JPH0458095B2 (en, 2012) 1992-09-16

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