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21. 发明申请

US20080205221A1 DATA RECORDING EVALUATION METHOD AND OPTICAL DISK RECORDING AND REPRODUCTION DEVICE 失效
标题翻译：数据记录评估方法和光盘记录和再现设备
公开(公告)号：US20080205221A1
公开(公告)日：2008-08-28
申请号：US11965505
申请日：2007-12-27
申请人： Hiroya Kakimoto , Fuyuki Miyazawa , Mitsuo Sekiguchi , Katsuhiro Oyama
发明人： Hiroya Kakimoto , Fuyuki Miyazawa , Mitsuo Sekiguchi , Katsuhiro Oyama
IPC分类号： G11B27/36 , G11B7/00
CPC分类号： G11B20/10009 , G11B7/00458 , G11B7/1267
摘要： Novel evaluation indexes are introduced to allow both a total evaluation of data recording and an evaluation of individual detection patterns. A data recording evaluation method includes a step of reproducing a result of data recording performed on an optical disk and identifying a predetermined detection pattern in a reproduction signal, a step of detecting a signal state of the reproduction signal associated with the predetermined detection pattern, and a first calculation step for calculating a first evaluation index value based on the detected signal state and a reference state identified from the predetermined detection pattern. When there is a plurality of predetermined detection patterns as described above, a second calculation step is further provided for calculating a second recording state evaluation index value using the first evaluation index value calculated from each of the predetermined detection patterns. Data recording can be properly evaluated using the first and second recording state evaluation index values.
摘要翻译：引入了新的评估指标，以便对数据记录进行总体评估，并对个别检测模式进行评估。数据记录评估方法包括重现在光盘上执行的数据记录结果并识别再现信号中的预定检测图案的步骤，检测与预定检测图案相关联的再现信号的信号状态的步骤，以及第一计算步骤，用于基于检测到的信号状态和从预定检测图案识别的参考状态来计算第一评估指标值。当存在如上所述的多个预定检测模式时，还提供第二计算步骤，用于使用从每个预定检测图案计算出的第一评估指标值来计算第二记录状态评估指标值。可以使用第一和第二记录状态评估指标值适当地评估数据记录。

22. 发明申请

US20060140084A1 Optical information recording device, optical information recording method, and signal processing circuit 失效
标题翻译：光信息记录装置，光信息记录方法和信号处理电路
公开(公告)号：US20060140084A1
公开(公告)日：2006-06-29
申请号：US11283265
申请日：2005-11-18
申请人： Fuyuki Miyazawa , Yoshikazu Sato , Isao Matsuda , Tetsuharu Kubo , Katsuhiro Oyama , Hiroya Kakimoto
发明人： Fuyuki Miyazawa , Yoshikazu Sato , Isao Matsuda , Tetsuharu Kubo , Katsuhiro Oyama , Hiroya Kakimoto
IPC分类号： G11B5/09
CPC分类号： G11B7/00456 , G11B7/0062 , G11B7/1267
摘要： It is an object of the present invention to improve a margin to meet good recording quality by conducting a realtime correction of a recording condition of a medium with different recording characteristics for inner and outer circumferences. To accomplish the object, control factors for power and a pulse width are independently detected and corrected using an mT pulse having a length of m′T as a pulse for power control and an nT pulse having a length of n′T as a pulse for pulse width control; more specifically, power correction for mT pulse and pulse width correction for nT pulse are conducted in realtime, wherein a recording pulse stream including the mT pulse and nT pulse is irradiated onto a medium 500 by a recording laser beam 20A as well as pits and spaces formed by irradiation of the recording pulse stream are reproduced by a reproducing laser beam 20E to detect the effects of power and pulse width variations independently.
摘要翻译：本发明的目的是通过对具有不同记录特性的介质的记录条件进行实时校正来改善内部和外部周边的记录条件，以提高满足良好记录质量的余量。为了实现该目的，使用具有长度为m'T的mT脉冲作为用于功率控制的脉冲和具有不为脉冲长度的nT脉冲独立地检测和校正功率和脉冲宽度的控制因素脉宽控制; 更具体地，实时地进行用于nT脉冲的mT脉冲和脉冲宽度校正的功率校正，其中包括mT脉冲和nT脉冲的记录脉冲流通过记录激光束20A照射到介质500上，以及凹坑通过记录脉冲流的照射形成的空间由再现激光束20E再现，以独立地检测功率和脉冲宽度变化的影响。

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