公开(公告)号：US06754156B2

公开(公告)日：2004-06-22

申请号：US09987057

申请日：2001-11-13

申请人： Shin Akabane

发明人： Shin Akabane

IPC分类号： G11B390

CPC分类号： G11B7/126 ,  G11B7/0045

摘要： An optical recording apparatus includes a light source driving unit for driving the light source to emit the light beam; an emission light power detecting unit for detecting an emission light power from the light source; and a light power adjusting unit for controlling the light source driving unit based on a detected light power by the emission light power detecting unit to adjust the emission light power from the light source.

公开(公告)号：US06757233B2

公开(公告)日：2004-06-29

申请号：US10045037

申请日：2002-01-15

申请人： Shin Akabane ,  Junji Tanaka

发明人： Shin Akabane ,  Junji Tanaka

IPC分类号： G11B700

CPC分类号： G11B20/10009 ,  G11B27/24 ,  G11B27/3027 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2562

摘要： A composite signal in which pre-pit signal components are piggypacked onto frequency components of wobbling, is extracted from an optical recording medium. The composite signal is binarized, so that pre-pit signals are generated. The pre-pit signals pass through a first gate when the gate is open. The gate is periodically opened only in a period during which the amplitude of the wobbling becomes a maximum one. The number of the pre-pit signals passing through the gate is counted, so that a binarizing level for generating the pre-pit signal is set based on the relationship between the counted number per a reference time and a predetermined reference number.

摘要翻译： 从光记录介质中提取其中将预凹坑信号分量插入到摆动的频率分量上的复合信号。 复合信号被二值化，从而产生预凹陷信号。 当门打开时，预凹陷信号通过第一个门。 仅在摆动幅度变为最大值的时间周期性地打开门。 对通过栅极的预凹陷信号的数量进行计数，从而基于每个参考时间的计数数与预定的参考数之间的关系来设置用于产生预凹陷信号的二值化电平。

公开(公告)号：US06891784B2

公开(公告)日：2005-05-10

申请号：US10201271

申请日：2002-07-24

申请人： Naoharu Yanagawa ,  Junji Tanaka ,  Shin Akabane ,  Takakazu Sugiyama

发明人： Naoharu Yanagawa ,  Junji Tanaka ,  Shin Akabane ,  Takakazu Sugiyama

IPC分类号： G11B7/005 ,  G11B7/007 ,  G11B20/12 ,  G11B20/14 ,  G11B27/19 ,  G11B27/24 ,  G11B7/00

CPC分类号： G11B20/1403 ,  G11B7/005 ,  G11B7/0053 ,  G11B7/00745 ,  G11B7/24082 ,  G11B20/1217 ,  G11B27/24 ,  G11B2020/1274 ,  G11B2020/1275 ,  G11B2020/1287 ,  G11B2020/1298 ,  G11B2220/215 ,  G11B2220/216 ,  G11B2220/2562

摘要： An information recording/reproducing apparatus irradiates a light beam on an optical disc on which pre-pits are formed, and performs recording and/or reproduction of information with respect to the optical disc according to a recording clock produced based on a wobble signal and a pre-pit signal. When recording information onto the optical disc having the pre-pits, a light beam is radiated to thereby extract the wobble signal and pre-pit signal. Then, according to the wobble signal and the pre-pit signal, a recording clock signal is produced, and information is recorded based on the recording clock signal. When producing a pre-pit signal, a push-pull signal is produced from the reflected light from the optical disc, and this signal is compared with a reference level to thereby detect a pre-pit. Here, when a pre-pit is not detected, the reference level is changed and the detection processing of the pre-pits is executed again.

摘要翻译： 信息记录/再现装置将光束照射在其上形成有预定凹坑的光盘上，并且根据基于摆动信号产生的记录时钟执行关于光盘的信息的记录和/或再现， 预坑信号。 当将信息记录到具有预凹坑的光盘上时，辐射光束，从而提取摆动信号和预凹陷信号。 然后，根据摆动信号和预凹陷信号，产生记录时钟信号，并根据记录时钟信号记录信息。 当产生预凹陷信号时，从来自光盘的反射光产生推挽信号，并将该信号与参考电平进行比较，从而检测预凹坑。 这里，当未检测到预凹坑时，参考电平被改变，并且再次执行预制凹坑的检测处理。

公开(公告)号：US20100232267A1

公开(公告)日：2010-09-16

申请号：US12278805

申请日：2007-01-18

申请人： Ryo Harada ,  Shin Akabane ,  Tsutomu Satake

发明人： Ryo Harada ,  Shin Akabane ,  Tsutomu Satake

IPC分类号： G11B7/00

CPC分类号： G11B7/24038 ,  G11B7/1267 ,  G11B2007/0013

摘要： The invention is directed to provide an information recording apparatus having an adjusting process device which performs adjusting processes including an OPC process for optimizing a recording power for each of recording layers on a multilayer information recording medium, and an information recording device which performs an information recording process for each of the recording layers based on a result of the adjusting processes for each of the recording layers. The adjusting process device includes an initial adjusting process device which performs the adjusting processes at a start of information recording with the information recording device only for a start recording layer having the first recording start address, and an intermediate adjusting process device which performs the adjusting processes during information recording process with the information recording device for a recording layer other than the start recording layer.

摘要翻译： 本发明旨在提供一种具有调整处理装置的信息记录装置，该调整处理装置执行包括用于优化多层信息记录介质上每个记录层的记录功率的OPC处理的调整处理和执行信息记录的信息记录装置 基于每个记录层的调整处理结果对每个记录层进行处理。 调整处理装置包括初始调整处理装置，该初始调整处理装置仅在具有第一记录开始地址的开始记录层的信息记录装置的信息记录开始时执行调整处理，以及执行调整处理的中间调整处理装置 在与开始记录层以外的用于记录层的信息记录装置的信息记录处理期间。