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1. 发明申请

US20110002204A1 POWER ADJUSTMENT METHOD, INFORMATION WRITE METHOD AND INFORMATION WRITE MEDIUM 有权
标题翻译：功率调整方法，信息写入方法和信息写入介质
公开(公告)号：US20110002204A1
公开(公告)日：2011-01-06
申请号：US12569059
申请日：2009-09-29
申请人： Soichiro ETO , Koichi Watanabe , Harukazu Miyamoto
发明人： Soichiro ETO , Koichi Watanabe , Harukazu Miyamoto
IPC分类号： G11B7/00
CPC分类号： G11B7/1267
摘要： A write power adjustment method makes it possible to set optimum write power with high precision. Trial writing is conducted by using write power Pw,m (where m is an integer) of a plurality of kinds, and a modulation M,m associated with each write power is calculated. Optimum asymptotic power Pasy-opt is calculated by performing predetermined computation by using reference asymptotic power Pasy-ref and reference write start power Pws-ref which are previously determined for each medium. An evaluated value S,m=M,m×(Pw,m−Pasy-opt) is calculated by using the optimum asymptotic power Pasy-opt. Write power Pw that makes the evaluated value S equal to zero when applying straight line approximation to a relation between the write power Pw,m and the evaluated value S,m is calculated as optimum write start power Pws-opt. And optimum write power Pw-opt is found by performing predetermined computation on the optimum write start power Pws-opt.
摘要翻译：写入功率调整方法能够以高精度设置最佳写入功率。通过使用多种写入功率Pw，m（其中m是整数）进行试写，并且计算与每个写入功率相关联的调制M，m。通过使用预先为每种介质确定的参考渐近功率Pasy-ref和参考写入启动功率Pws-ref执行预定的计算来计算最佳渐近功率Pasy-opt。通过使用最佳渐近幂Pasy-opt计算评价值S，m = M，m×（Pw，m-Pasy-opt）。写入功率Pw，当将写入功率Pw，m与评估值S之间的关系应用直线近似时，使评估值S等于零，将m计算为最佳写入开始功率Pws-opt。通过对最佳写入开始功率Pws-opt执行预定的计算，找到最佳写入功率Pw-opt。

2. 发明申请

US20110317532A1 Power Adjustment Method, Information Write Method And Information Write Medium 有权
标题翻译：功率调整方法，信息写入方式和信息写入介质
公开(公告)号：US20110317532A1
公开(公告)日：2011-12-29
申请号：US13227030
申请日：2011-09-07
申请人： Soichiro ETO , Koichi Watanabe , Harukazu Miyamoto
发明人： Soichiro ETO , Koichi Watanabe , Harukazu Miyamoto
IPC分类号： G11B7/12
CPC分类号： G11B7/1267
摘要： An evaluation method and print wire method which includes (a) fitting a modulation characteristic formula M,m=Msat (1−(Pws−Pasy)/(Pw,m−Pasy)) having a saturated modulation Msat, write start power Pws, and asymptotic power Pasy as parameters to a relation between a plurality of kinds of write power Pw,m and a modulation M,m which is obtained from a signal amplitude of a trial-written signal, and finding an index value of an error; and (b) evaluating whether or not the relation between the write power and the modulation is valid for write power adjustment by using the index value of the error and a predetermined value the print write method further including (c) setting the write power based upon the result of evaluating and executing a write power process with the set write power.
摘要翻译：一种评估方法和打印线方法，其包括：（a）拟合具有饱和调制Msat的调制特性公式M，m = Msat（1-（Pws-Pasy）/（Pw，m-Pasy））写入开始功率Pws，以及渐近功率Pasy作为从写入信号的信号幅度获得的多种写入功率Pw，m与调制M，m之间的关系的参数，并找到误差的指标值; 以及（b）通过使用误差的指标值和预定值来评估写入功率和调制之间的关系对于写入功率调整是否有效，所述打印写入方法还包括（c）基于评估和执行具有设定写入功率的写入功率处理的结果。

3. 发明申请

US20120243392A1 RECORDING ADJUSTING METHOD, INFORMATION RECORDING AND REPRODUCING DEVICE, AND INFORMATION RECORDING MEDIUM 有权
标题翻译：记录调整方法，信息记录和再现装置以及信息记录介质
公开(公告)号：US20120243392A1
公开(公告)日：2012-09-27
申请号：US13334215
申请日：2011-12-22
申请人： Soichiro ETO , Takahiro Kurokawa
发明人： Soichiro ETO , Takahiro Kurokawa
IPC分类号： G11B27/36
CPC分类号： G11B7/1267 , G11B7/0906 , G11B7/24038 , G11B2007/0013
摘要： The present invention achieves tracking servo using a recording signal on a grooveless optical disc. Trial writing signals are written by using multiple recording conditions, and a recommended recording condition having favorable qualities of a reproduction signal and a tracking error signal is determined based on the trial writing signals. Then, recording is performed by using the recommended recording condition. In addition, by using a recording condition determined based on an optimum power control performed prior to the recording, signals are recorded adjacent to each other in at least two tracks. Signals are recorded by using the determined recording condition under which a tracking error signal quality obtained from the recording signal matches a desired value of a tracking error signal quality of the medium.
摘要翻译：本发明使用无槽光盘上的记录信号实现跟踪伺服。通过使用多个记录条件来写入试写信号，并且基于试写信号来确定具有良好的再现信号和跟踪误差信号质量的推荐记录条件。然后，使用推荐的记录条件进行记录。此外，通过使用基于在记录之前执行的最佳功率控制确定的记录条件，在至少两个轨道中彼此相邻地记录信号。通过使用确定的记录条件来记录信号，根据该记录条件，从记录信号获得的跟踪误差信号质量与介质的跟踪误差信号质量的期望值相匹配。

4. 发明申请

US20100290328A1 REPRODUCING POWER ADJUSTING METHOD, OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS AND INFORMATION RECORDING MEDIA 有权
标题翻译：再现功率调节方法，光信息记录/再现设备和信息记录介质
公开(公告)号：US20100290328A1
公开(公告)日：2010-11-18
申请号：US12776471
申请日：2010-05-10
申请人： Soichiro ETO , Toshimichi Shintani , Hiroyuki Minemura
发明人： Soichiro ETO , Toshimichi Shintani , Hiroyuki Minemura
IPC分类号： G11B7/12 , G11B20/10
CPC分类号： G11B20/10027 , G11B7/0037 , G11B7/00736 , G11B7/1267 , G11B20/10009 , G11B20/10055 , G11B20/10314 , G11B20/10398 , G11B20/10481 , G11B20/105 , G11B2007/0013 , G11B2220/2541 , G11B2220/2562 , G11B2220/2595
摘要： By referring to a table of reproducing conditions and medium specific parameters, stored in an optical disc or optical disc apparatus and/or generated by the optical disc apparatus, the medium specific parameters to be used for performing reproducing power adjustment are changed in accordance with the reproducing condition to execute reproducing power adjustment.
摘要翻译：通过参考存储在光盘或光盘装置中和/或由光盘装置产生的再现条件和介质特定参数表，用于执行再现功率调整的介质特定参数根据再现条件以执行再现功率调整。

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