发明名称 INFORMATION RECORDING DEVICE, INFORMATION REPRODUCING DEVICE AND RECORDING MEDIUM
摘要 PROBLEM TO BE SOLVED: To provide an information recording device, an information reproduc ing device and a recording medium so that information is easily multivalued recorded can be reproduced. SOLUTION: The multivalued level number recording the information is added to record information in the information recording device multivalued executing the recording is added the record medium to be recorded into the same.
申请公布号 JP2002324361(A) 申请公布日期 2002.11.08
申请号 JP20010129516 申请日期 2001.04.26
申请人 RICOH CO LTD 发明人 KADOKAWA YUICHI
分类号 G11B20/10;G11B7/0045;G11B7/007;(IPC1-7):G11B20/10;G11B7/004 主分类号 G11B20/10
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