公开(公告)号：US07974164B2

公开(公告)日：2011-07-05

申请号：US12446879

申请日：2006-10-31

申请人： Yoshio Sasaki ,  Shogo Miyanabe ,  Hiroyuki Uchino

发明人： Yoshio Sasaki ,  Shogo Miyanabe ,  Hiroyuki Uchino

IPC分类号： G11B7/00

CPC分类号： G11B20/10027 ,  G11B7/00456 ,  G11B7/1267 ,  G11B20/10009 ,  G11B20/10046 ,  G11B2220/215 ,  G11B2220/2541 ,  G11B2220/2562

摘要： An information recording apparatus (2) is for forming a record mark corresponding to a recording signal by applying a laser beam to a recording medium, and is provided with: a light source (21) for emitting the laser beam; and a signal generating device (22) for generating a recording pulse signal for driving the light source on the basis of the recording signal, the recording pulse signal includes a mark period and a space period, a level of the recording pulse signal corresponds to a recording power by which waveform distortion is greater than or equal to an upper limit (L) or is less than or equal to a lower limit (−L) of an amplitude limit value on a limit equalizer (15), in the mark period corresponding to a long mark.

摘要翻译： 信息记录装置（2）用于通过对记录介质施加激光来形成与记录信号相对应的记录标记，并且设置有：用于发射激光束的光源（21）; 信号产生装置（22），用于根据记录信号产生用于驱动光源的记录脉冲信号，记录脉冲信号包括标记周期和空间周期，记录脉冲信号的电平对应于 在极限均衡器（15）上的振幅限制值的波形失真大于或等于上限（L）或小于或等于下限（-L）的记录功率，在对应的标记周期 到一个长的标记。

公开(公告)号：US20090252016A1

公开(公告)日：2009-10-08

申请号：US12446819

申请日：2006-10-31

申请人： Yoshio Sasaki ,  Shogo Miyanabe ,  Hiroyuki Uchino

发明人： Yoshio Sasaki ,  Shogo Miyanabe ,  Hiroyuki Uchino

IPC分类号： G11B7/00

CPC分类号： G11B7/0062 ,  G11B7/1267

摘要： An information recording apparatus forms a record mark corresponding to a recording signal by applying a laser beam to a recording medium, and includes: a light source for emitting the laser beam; a signal generating device for generating a recording pulse signal for driving the light source on the basis of the recording signal; a test-writing device for performing test-writing; and a determining device for determining at least one of a power and a pulse width of the recording pulse signal on the basis of a test-writing result, the test-writing device performs the test-writing by changing the power of the recording pulse signal, the determining device determines the power, by which waveform distortion is greater than or equal to an upper limit or is less than or equal to a lower limit of an amplitude limit value on a limit equalizer in the mark period corresponding to the long mark.

摘要翻译： 信息记录装置通过向记录介质施加激光束来形成对应于记录信号的记录标记，并且包括：用于发射激光束的光源; 信号产生装置，用于根据记录信号产生用于驱动光源的记录脉冲信号; 用于执行测试写作的测试写入设备; 以及基于测试写入结果来确定记录脉冲信号的功率和脉冲宽度中的至少一个的确定装置，所述测试写入装置通过改变记录脉冲信号的功率来执行测试写入 决定装置确定波形失真大于或等于上限的功率，或小于或等于对应于长标记的标记周期内的限制均衡器上的振幅限制值的下限。

公开(公告)号：US08107341B2

公开(公告)日：2012-01-31

申请号：US12517273

申请日：2006-12-05

申请人： Yoshio Sasaki ,  Shogo Miyanabe ,  Hiroyuki Uchino

发明人： Yoshio Sasaki ,  Shogo Miyanabe ,  Hiroyuki Uchino

IPC分类号： G11B5/09

CPC分类号： G11B20/10009 ,  G11B20/10037 ,  G11B20/10046 ,  G11B20/10481 ,  G11B2020/1287 ,  G11B2220/2541 ,  G11B2220/2562

摘要： An information reproducing apparatus (1) is provided with: a judging device (20) for judging whether or not a read signal (RRF) read from a recording medium (100) satisfies a desired reproduction property; a correcting device (18) for correcting waveform distortion occurring in a read signal corresponding to a long mark, of the read signal if it is judged that the read signal does not satisfy the desired reproduction property; and a waveform equalizing device (15) for performing a waveform equalization process on the read signal in which the waveform distortion is corrected.

摘要翻译： 一种信息再现装置（1）具有：判断装置（20），用于判断从记录介质（100）读取的读取信号（RRF）是否满足期望的再现特性; 校正装置（18），用于如果判断出读取信号不满足期望的再现性质，则校正读出信号对应于长标记的读取信号中出现的波形失真; 以及用于对其中校正波形失真的读取信号执行波形均衡处理的波形均衡装置（15）。

公开(公告)号：US08094534B2

公开(公告)日：2012-01-10

申请号：US12517256

申请日：2006-12-05

申请人： Yoshio Sasaki ,  Shogo Miyanabe ,  Hiroyuki Uchino

发明人： Yoshio Sasaki ,  Shogo Miyanabe ,  Hiroyuki Uchino

IPC分类号： G11B5/09

CPC分类号： G11B20/10314 ,  G11B20/10009 ,  G11B20/10037 ,  G11B20/10046 ,  G11B20/10055 ,  G11B20/10212 ,  G11B20/10481 ,  G11B2220/2541 ,  G11B2220/2562

摘要： An information reproducing apparatus (1) is provided with: a waveform shaping device (14) for performing waveform shaping on a read signal (RRF) read from a recording medium (100), on the basis of a reference amplification factor; a correcting device (18) for correcting waveform distortion occurring in a read signal corresponding to at least a long mark, of the read signal on which the waveform shaping is performed; and a waveform equalizing device (15) for performing a waveform equalization process on the read signal in which the waveform distortion is corrected, the waveform shaping device arbitrarily increases the reference amplification factor.

摘要翻译： 信息再现装置（1）具有：基于参考放大系数对从记录介质（100）读取的读取信号（RRF）进行波形整形的波形整形装置（14）; 校正装置（18），用于校正在执行波形整形的读取信号中对应于至少长标记的读取信号中出现的波形失真; 以及用于对其中校正波形失真的读取信号执行波形均衡处理的波形均衡装置（15），波形整形装置任意地增加参考放大系数。

公开(公告)号：US08059511B2

公开(公告)日：2011-11-15

申请号：US12517427

申请日：2006-12-05

申请人： Yoshio Sasaki ,  Shogo Miyanabe ,  Hiroyuki Uchino

发明人： Yoshio Sasaki ,  Shogo Miyanabe ,  Hiroyuki Uchino

IPC分类号： G11B20/10

CPC分类号： G11B20/10009 ,  G11B20/10055 ,  G11B20/10111 ,  G11B20/1012 ,  G11B2220/2541

摘要： An information reproducing apparatus (1) is provided with: a correcting device (18) for correcting waveform distortion occurring in a read signal corresponding to a long mark, of a read signal (RRF) read from a recording medium (100); and a processing device (15) for performing a PRML (Partial Response Maximum Likelihood) process on the read signal in which the waveform distortion is corrected.

摘要翻译： 一种信息再现装置（1）具有：校正装置（18），用于校正从与记录介质（100）读取的读取信号（RRF）相对应的长标记的读取信号中发生的波形失真; 以及用于对其中校正波形失真的读取信号执行PRML（部分响应最大似然）处理的处理装置（15）。

公开(公告)号：US07978571B2

公开(公告)日：2011-07-12

申请号：US12670729

申请日：2007-08-01

申请人： Shogo Miyanabe ,  Hiroyuki Uchino ,  Yoshio Sasaki

发明人： Shogo Miyanabe ,  Hiroyuki Uchino ,  Yoshio Sasaki

IPC分类号： G11B15/52

CPC分类号： G11B7/00456 ,  G11B7/1267 ,  G11B20/10009 ,  G11B20/10481 ,  G11B20/1879 ,  G11B2020/183 ,  G11B2220/2537

摘要： A recording apparatus (1) is provided with: a recording device (11) for recording a data pattern onto a recording medium (100); a first controlling device (22) for stopping the recording; a reading device (11) for reading the data pattern which is recorded immediately before the recording is stopped, thereby obtaining a read signal; a measuring device (19) for measuring jitter of the read signal; an adjusting device (21) for adjusting a recording condition such that the jitter satisfies a desired condition, and a second controlling device (22) for restarting the recording of the data pattern by using the adjusted recording condition.

摘要翻译： 一种记录装置（1）具有：用于将数据图案记录到记录介质（100）上的记录装置（11）; 用于停止记录的第一控制装置（22）; 用于读取紧接在记录之前被记录的数据模式的读取装置（11），从而获得读取信号; 用于测量读取信号的抖动的测量装置（19）; 用于调整记录条件以使得抖动满足所需条件的调节装置（21）和用于通过使用调整后的记录条件来重新启动数据模式的记录的第二控制装置（22）。

公开(公告)号：US20100080099A1

公开(公告)日：2010-04-01

申请号：US12517427

申请日：2006-12-05

申请人： Yoshio Sasaki ,  Shogo Miyanabe ,  Hiroyuki Uchino

发明人： Yoshio Sasaki ,  Shogo Miyanabe ,  Hiroyuki Uchino

IPC分类号： G11B20/18

CPC分类号： G11B20/10009 ,  G11B20/10055 ,  G11B20/10111 ,  G11B20/1012 ,  G11B2220/2541

摘要： An information reproducing apparatus (1) is provided with: a correcting device (18) for correcting waveform distortion occurring in a read signal corresponding to a long mark, of a read signal (RRF) read from a recording medium (100); and a processing device (15) for performing a PRML (Partial Response Maximum Likelihood) process on the read signal in which the waveform distortion is corrected

摘要翻译： 一种信息再现装置（1）具有：校正装置（18），用于校正从与记录介质（100）读取的读取信号（RRF）相对应的长标记的读取信号中发生的波形失真; 以及用于对其中校正波形失真的读取信号执行PRML（部分响应最大似然）处理的处理装置（15）

公开(公告)号：US20090323494A1

公开(公告)日：2009-12-31

申请号：US12446639

申请日：2006-10-31

申请人： Yoshio Sasaki ,  Shogo Miyanabe ,  Hiroyuki Uchino

发明人： Yoshio Sasaki ,  Shogo Miyanabe ,  Hiroyuki Uchino

IPC分类号： G11B7/00

CPC分类号： G11B20/10046 ,  G11B20/10009 ,  G11B20/10037 ,  G11B20/10212 ,  G11B20/10314 ,  G11B20/10481 ,  G11B2220/2541 ,  G11B2220/2562

摘要： An information reproducing apparatus (1) is provided with: an amplitude limiting device (151, 152) for obtaining an amplitude limit signal (RSLIM) by limiting an amplitude level of a read signal (RRF) read from a recording medium (100) on the basis of a predetermined amplitude limit value; and a filtering device (158) for obtaining an equalization-corrected signal (RSH) by performing a high-frequency emphasizing and filtering process on the amplitude limit signal, the amplitude limiting device individually sets each of an upper limit (L1) and a lower limit (L2) of the amplitude limit value.

摘要翻译： 一种信息再现装置（1）具有：限幅装置（151,152），用于通过限制从记录介质（100）读取的读取信号（RRF）的幅度电平来获得振幅限制信号（RSLIM） 预定振幅极限值的基础; 以及通过对限幅信号进行高频强调和滤波处理来获得均衡校正信号（RSH）的滤波装置（158），所述振幅限制装置分别设定上限（L1）和下限 极限值（L2）。

公开(公告)号：US08154966B2

公开(公告)日：2012-04-10

申请号：US12517253

申请日：2006-12-05

申请人： Yoshio Sasaki ,  Shogo Miyanabe ,  Hiroyuki Uchino

发明人： Yoshio Sasaki ,  Shogo Miyanabe ,  Hiroyuki Uchino

IPC分类号： G11B11/00

CPC分类号： G11B20/10055 ,  G11B7/005 ,  G11B20/10203

摘要： An information reproducing apparatus (1) is provided with: an offset adding device (19-1, 19-2) for adding an offset value (OFS) which can be set to be variable, to a read signal (RRF) read from a recording medium (100); a correcting device (18) for correcting waveform distortion occurring in a read signal corresponding to a long mark, of the read signal to which the offset value is added; and a waveform equalizing device (18) for performing a waveform equalization process on the read signal in which the waveform distortion is corrected.

摘要翻译： 一种信息再现装置（1）具有：偏移量相加装置（19-1,19-2），用于将可设定为可变的偏移值（OFS）与从 记录介质（100）; 校正装置（18），用于校正在添加了偏移值的读取信号中对应于长标记的读取信号中出现的波形失真; 以及用于对其中校正波形失真的读取信号执行波形均衡处理的波形均衡装置（18）。

公开(公告)号：US08023381B2

公开(公告)日：2011-09-20

申请号：US12517415

申请日：2006-12-05

申请人： Yoshio Sasaki ,  Shogo Miyanabe ,  Hiroyuki Uchino

发明人： Yoshio Sasaki ,  Shogo Miyanabe ,  Hiroyuki Uchino

IPC分类号： G11B5/09

CPC分类号： G11B20/10046 ,  G11B20/10037 ,  G11B20/10203 ,  G11B2220/2541 ,  G11B2220/2562

摘要： An information reproducing apparatus (1) is provided with: an offset adding device (19-1, 19-2) for adding a first offset value (OFS) which can be set to be variable, to a read signal (RRF) read from a recording medium (100); a correcting device (18) for correcting waveform distortion occurring in a read signal corresponding to a long mark, of the read signal to which the first offset value is added; an offset subtracting device (19-2, 19-3) for subtracting a second offset value (OFS) which can be set to be variable, from the read signal in which the waveform distortion is corrected; and a waveform equalizing device (15) for performing a waveform equalization process on the read signal in which the second offset value is subtracted.

摘要翻译： 信息再现装置（1）具有：偏移量相加装置（19-1,19-2），用于将可设定为可变的第一偏移值（OFS）与读取的读取信号（RRF）相加 记录介质（100）; 校正装置（18），用于校正与添加了第一偏移值的读取信号相对应的长标记的读取信号中出现的波形失真; 用于从修正波形失真的读取信号中减去可设定为可变的第二偏移值（OFS）的偏移减法装置（19-2,19-3） 以及用于对其中减去第二偏移值的读取信号执行波形均衡处理的波形均衡装置（15）。