JP2566111C - - Google Patents

Info

Publication number
JP2566111C
JP2566111C JP2566111C JP 2566111 C JP2566111 C JP 2566111C JP 2566111 C JP2566111 C JP 2566111C
Authority
JP
Japan
Prior art keywords
guide groove
magneto
width
address signal
pit
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.)
Expired - Lifetime
Application number
Other languages
English (en)
Japanese (ja)
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.)
Sharp Corp
Original Assignee
Sharp Corp
Publication date

Links

Family

ID=

Similar Documents

Publication Publication Date Title
KR100776850B1 (ko) 광 기록 매체 및 광 기록 재생 장치
JPH0689473A (ja) 光磁気記録媒体
JPH0547043A (ja) 光メモリ
JPH0518186B2 (enExample)
EP1341167B1 (en) Optical recording medium and optical disk device
US6487164B1 (en) Optical recording medium capable of assuring sufficient levels of signals required for reading/writing data, and stamper for manufacture of the same
US7242662B2 (en) Optical recording/reproducing medium, mother stamper for producing optical recording/reproducing medium and optical recording/reproducing device
JPH0481816B2 (enExample)
US6654337B2 (en) Magneto-optical recording medium having pit pitch greater than groove pitch
JP3150014B2 (ja) 光学的情報記録媒体
JP2006040446A (ja) 光ディスク及び情報再生装置
JP2644840B2 (ja) 光ディスク
JP2566111B2 (ja) 光磁気メモリ素子
JPH0546622B2 (enExample)
JP3108671B2 (ja) 光磁気メモリ素子
JP2863431B2 (ja) 光磁気記録再生装置
US20050018582A1 (en) Optical disk and optical disk apparatus
JP3108682B2 (ja) 光磁気メモリ素子の製造方法
JP2566111C (enExample)
JP2636563B2 (ja) 光ディスク
US6349085B1 (en) High density recording medium with pit width to track pitch ratio in the range of 0.4 to 0.55 for push-pull tracking servo control
JPH03241538A (ja) 光学的記録媒体円盤
US7068585B2 (en) Optical information recording medium
JPH09115185A (ja) 光記録媒体および光情報検出装置
JP2522033B2 (ja) 記録再生可能な光ディスク