公开(公告)号：US20060126470A1

公开(公告)日：2006-06-15

申请号：US11298585

申请日：2005-12-12

申请人： Taku Hoshizawa

发明人： Taku Hoshizawa

IPC分类号： G11B5/09

CPC分类号： G11B20/1883 ,  G11B7/00375 ,  G11B7/00736 ,  G11B27/034 ,  G11B27/036 ,  G11B27/329 ,  G11B2020/10907 ,  G11B2220/20 ,  G11B2220/218 ,  G11B2220/2562

摘要： In a recording method of a write-once optical disk which has a lead-in area, a user area and a lead-out area and to which a logical over-write processing is performed using disk structure definition information and a defect list table recorded to the lead-in area, the disk structure definition information includes information regarding at least one of the disk structure definition information and the defect list table that is to be referred to for a logical over-write cancellation processing, to thereby cancel recovery of a file system at the time of the occurrence of an accident in a data recording system to which a logical over-write processing is applied, or an over-write processing.

摘要翻译： 在具有导入区域，用户区域和导出区域的一次写入光盘的记录方法中，使用盘结构定义信息和记录的缺陷列表表进行逻辑重写处理 在导入区域中，盘结构定义信息包括关于盘结构定义信息和缺陷列表表中关于逻辑重写取消处理的参考的至少一个的信息，从而取消对 在应用了逻辑重写处理的数据记录系统中发生事故时的文件系统或者写入处理。

公开(公告)号：US20050229082A1

公开(公告)日：2005-10-13

申请号：US11156652

申请日：2005-06-21

申请人： Osamu Kawamae ,  Taku Hoshizawa ,  Harukazu Miyamoto ,  Shigeki Taira ,  Yukari Katayama

发明人： Osamu Kawamae ,  Taku Hoshizawa ,  Harukazu Miyamoto ,  Shigeki Taira ,  Yukari Katayama

IPC分类号： G11B20/12 ,  G11B7/004 ,  G11B20/18 ,  G11B27/10 ,  G11B27/32 ,  H03M13/00

CPC分类号： G11B20/00768 ,  G11B20/1217 ,  G11B20/1833 ,  G11B20/1866 ,  G11B27/105 ,  G11B27/329 ,  G11B2020/1222 ,  G11B2020/1265 ,  G11B2020/1292 ,  G11B2020/1294 ,  G11B2020/1836 ,  G11B2220/218 ,  G11B2220/2562

摘要： If a large minimum data unit for recorded data is used to record a small data amount of management information, the recording time is long, and furthermore when a WO (write once) is used as the recording medium, the number of recording operations which can be performed is restricted. To solve the above problems, the present invention can record data in a management area in units smaller than ordinary units for recorded data to suitably record information in a limited management area and thereby efficiently use the user data area. At that time, the present invention simplifies interleave processing usually applied to ordinary recorded data, and performs the simplified interleave processing on a data structure (for data of small size) of the present invention so as to ensure the signal processing compatibility between the ordinary data and data having the data structure according to the present invention.

摘要翻译： 如果用于记录数据的大的最小数据单元用于记录管理信息的小数据量，则记录时间长，此外当使用WO（一次写入）作为记录介质时，可以记录操作的数量 被执行是受限制的。 为了解决上述问题，本发明可以以小于普通单位的单位在管理区域中记录数据以在有限的管理区域中适当地记录信息，从而有效地使用用户数据区域。 此时，本发明简化了通常适用于普通记录数据的交错处理，并且对本发明的数据结构（小尺寸数据）执行简化的交错处理，以确保普通数据之间的信号处理兼容性 以及具有根据本发明的数据结构的数据。

公开(公告)号：US20050117474A1

公开(公告)日：2005-06-02

申请号：US10933947

申请日：2004-09-03

申请人： Yoshinori Ishikawa ,  Taku Hoshizawa ,  Fumio Isshiki

发明人： Yoshinori Ishikawa ,  Taku Hoshizawa ,  Fumio Isshiki

IPC分类号： G11B7/00 ,  G11B7/09

CPC分类号： G11B7/0945 ,  G11B7/0941

摘要： Even in an optical disk which includes, within a single disk, plural record areas whose track-pitches differ from each other, a tracking parameter is adjusted in a short time and with a high accuracy. At first, an optical pickup for reading information recorded in the optical disk is displaced into a reference track-pitch area which is one of the plural record areas of the optical disk. Moreover, the tracking gain is adjusted so that the tracking servo gain in this area may exhibit a predetermined characteristic. Also, the value thus acquired is recorded into, e.g., a non-volatile memory. After that, based on the tracking parameter learned/adjusted in the reference track-pitch area, the tracking parameter in another track-pitch area is calculated using the track-pitch ratio therebetween. Thereby it becomes possible to adjust the tracking parameter in a short time and with a high accuracy.

摘要翻译： 即使在单个盘中包括轨道间距彼此不同的多个记录区域的光盘中，也可以在短时间内以高精度调整跟踪参数。 首先，用于读取记录在光盘中的信息的光学拾取器被移动到作为光盘的多个记录区域之一的参考轨道间距区域中。 此外，调整跟踪增益，使得该区域中的跟踪伺服增益可以呈现预定特性。 此外，由此获得的值被记录到例如非易失性存储器中。 之后，基于在参考轨道间距区域中学习/调整的跟踪参数，使用它们之间的轨道间距比来计算另一轨道间距区域中的跟踪参数。 由此，可以在短时间内和高精度地调整跟踪参数。

公开(公告)号：US6014766A

公开(公告)日：2000-01-11

申请号：US253616

申请日：1999-02-19

申请人： Yutaka Nagai ,  Shuichi Sagano ,  Yoshifumi Takeuchi ,  Taku Hoshizawa ,  Osamu Kawamae

发明人： Yutaka Nagai ,  Shuichi Sagano ,  Yoshifumi Takeuchi ,  Taku Hoshizawa ,  Osamu Kawamae

IPC分类号： H04N5/92 ,  G11B20/18 ,  G11C29/00 ,  H03M13/00 ,  H04N5/926 ,  H04N5/945

CPC分类号： G11B20/1813 ,  H04N5/945 ,  G11B2020/183 ,  H04N5/9262

摘要： A quick retry operation is possible by outputting an error flag pertaining to a sector after error correction processing of digital data. When an output of an error detection flag unit for a correction block indicates the existence of an uncorrectable error, the sectors are checked to see if the sectors corresponding to retrieved data include any error or not based on output from a sector error flag register B. When the sectors are judged as error, signals are retrieved again from a storage medium, restored in a memory, and an error correction processing is repeated again. The data such as that of P pictures or B pictures of MPEG which can be reproduced even with errors are output even when the error detection flag unit indicates the existence of the uncorrectable error. It enables identification of the sectors with the errors and simplifies the following operations pertaining to the error at a data receiving side by outputting the error flag along with the data.

摘要翻译： 通过在数字数据的纠错处理之后输出与扇区相关的错误标志，可以进行快速重试操作。 当用于校正块的错误检测标志单元的输出指示存在不可校正的错误时，根据来自扇区错误标志寄存器B的输出，检查扇区以查看与检索数据相对应的扇区是否包括任何错误。 当扇区被判断为错误时，再次从存储介质中取回信号，并将其恢复到存储器中，并再次重复纠错处理。 甚至当错误检测标志单元指示存在不可校正的错误时也输出甚至可以再现错误的MPEG图像的P图像或B图像的数据。 它能够识别具有错误的扇区，并通过与数据一起输出错误标志来简化与数据接收侧的错误有关的以下操作。

公开(公告)号：US5920579A

公开(公告)日：1999-07-06

申请号：US8906

申请日：1998-01-16

申请人： Yutaka Nagai ,  Shuichi Sagano ,  Toshifumi Takeuchi ,  Taku Hoshizawa ,  Osamu Kawamae

发明人： Yutaka Nagai ,  Shuichi Sagano ,  Toshifumi Takeuchi ,  Taku Hoshizawa ,  Osamu Kawamae

IPC分类号： H04N5/92 ,  G11B20/18 ,  G11C29/00 ,  H03M13/00 ,  H04N5/926 ,  H04N5/945

CPC分类号： G11B20/1813 ,  H04N5/945 ,  G11B2020/183 ,  H04N5/9262

摘要： A quick retry operation is possible by outputting an error flag pertaining to a sector after error correction processing of digital data. When an output of an error detection flag unit for a correction block indicates the existence of an uncorrectable error, the sectors are checked to see if the sectors corresponding to retrieved data include any error or not based on output from a sector error flag register B. When the sectors are judged as error, signals are retrieved again from a storage medium, restored in a memory, and an error correction processing is repeated again. The data such as that of P pictures or B pictures of MPEG which can be reproduced even with errors are output even when the error detection flag unit indicates the existence of the uncorrectable error. It enables identification of the sectors with the errors and simplifies the following operations pertaining to the error at a data receiving side by outputting the error flag along with the data.

公开(公告)号：US20140098654A1

公开(公告)日：2014-04-10

申请号：US14119415

申请日：2011-06-10

申请人： Taku Hoshizawa

发明人： Taku Hoshizawa

IPC分类号： G11B7/007

CPC分类号： G11B7/00736 ,  G11B7/24038 ,  G11B19/122 ,  G11B20/1217 ,  G11B27/329 ,  G11B2020/122 ,  G11B2020/1287 ,  G11B2020/1292 ,  G11B2220/20 ,  G11B2220/232 ,  G11B2220/235

摘要： When recording layers were provided on both the front and back sides of an optical disk in order to increase the recording capacity, whether the reproducing surface of the optical disk taken out of the cartridge was the front side or the back side could not be determined. This problem can be solved by adding to the BCA, in addition to disk identification information: type information indicating whether a recording surface is provided on one side or both sides; side information indicating whether the surface with which reproduction is being performed is side A or side B; recording layer quantity information indicating whether the disk has a single layer or a double layer; information indicating the areas other than the BCA and the directions in which data on the read-in, data zones, and read-out are recorded/reproduced; and information indicating the presence/absence of a disk cartridge.

摘要翻译： 当为了增加记录容量而在光盘的前后两侧设置记录层时，从盒中取出的光盘的再现面是否为正面或背面无法确定。 除了盘识别信息之外，还可以通过添加到BCA来解决该问题：指示记录表面是设置在一侧还是两侧的类型信息; 指示正在执行再现的表面是侧面A还是侧面B的侧面信息; 记录层数量信息，指示盘是单层还是双层; 指示BCA以外的区域的信息以及读取，数据区和读出数据被记录/再现的方向; 以及指示盘盒的存在/不存在的信息。

公开(公告)号：US08300511B2

公开(公告)日：2012-10-30

申请号：US13089837

申请日：2011-04-19

申请人： Kenichi Shimada ,  Toshiki Ishii ,  Taku Hoshizawa ,  Motoyuki Suzuki

发明人： Kenichi Shimada ,  Toshiki Ishii ,  Taku Hoshizawa ,  Motoyuki Suzuki

IPC分类号： G11B7/00

CPC分类号： G11B7/0065 ,  G03H1/26 ,  G11B7/00772 ,  G11B7/083 ,  G11B7/08564 ,  G11B7/128

摘要： A holographic memory apparatus comprises first phase modulation means that adds phase information to each pixel of a signal beam to generate page data at recording time; oscillator light generation means that generates an oscillator light that is superimposed on, and interferes with, a diffracted light from a holographic recording medium at reproduction time; second phase modulation means that adds phase information to the oscillator light; and light detection means that detects an interference light generated by superimposing the oscillator light and the diffracted light from the holographic recording medium.

摘要翻译： 全息存储装置包括第一相位调制装置，其将相位信息添加到信号光束的每个像素，以在记录时间产生页数据; 振荡光产生装置，其在再现时产生叠加在来自全息记录介质的衍射光并与之干涉的振荡光; 将相位信息加到振荡器光的第二相位调制装置; 以及光检测装置，其检测通过叠加振荡光和来自全息记录介质的衍射光产生的干涉光。

公开(公告)号：US20120230172A1

公开(公告)日：2012-09-13

申请号：US13412649

申请日：2012-03-06

申请人： Takakiyo YASUKAWA ,  Taku Hoshizawa ,  Kunikazu Ohnishi ,  Yutaka Nagai

发明人： Takakiyo YASUKAWA ,  Taku Hoshizawa ,  Kunikazu Ohnishi ,  Yutaka Nagai

IPC分类号： G11B7/004

CPC分类号： G11B7/00736 ,  G11B7/0053 ,  G11B7/24094 ,  G11B20/00268 ,  G11B20/1217 ,  G11B20/1403 ,  G11B20/1426 ,  G11B2020/122 ,  G11B2220/2541

摘要： In the related art, writing of BCA data has been performed by a BCA cutter or the like after a user data area was formed. However, according to such a method, individual steps cannot help being provided for a disc manufacturing step in order to form the BCA. A burden on the disc manufacturer is large from a viewpoint of the number of disc producing steps and, further, manufacturing costs. By using a bit forming method similar to a user data area, the BCA manufacturing steps can be reduced. Specifically speaking, by devising a pit depth, a pit width, and a pit pattern, a modulation degree of a BCA portion can be further increased. A detecting method similar to that for the BCA in the related art can be applied.

摘要翻译： 在相关技术中，在形成用户数据区之后，通过BCA切割器等进行BCA数据的写入。 然而，根据这种方法，为了形成BCA，单独的步骤不能帮助提供用于盘制造步骤。 从盘片制造步骤的数量和制造成本来看，盘制造商的负担很大。 通过使用类似于用户数据区的位形成方法，可以减少BCA制造步骤。 具体来说，通过设计凹坑深度，凹坑宽度和凹坑图案，可以进一步提高BCA部分的调制度。 可以应用与现有技术中的BCA类似的检测方法。

公开(公告)号：US07984339B2

公开(公告)日：2011-07-19

申请号：US12180425

申请日：2008-07-25

申请人： Taku Hoshizawa ,  Shigeki Taira ,  Osamu Kawamae

发明人： Taku Hoshizawa ,  Shigeki Taira ,  Osamu Kawamae

IPC分类号： G06F11/00

CPC分类号： H03M13/2732 ,  G11B20/18 ,  G11B20/1803 ,  G11B20/1866 ,  H03M13/03 ,  H03M13/271 ,  H03M13/29

摘要： A digital data recording/reproducing method includes the steps of: interleaving data on a PI code for each PI code of a 208-row ECC block; and converting a short burst error into random errors by dispersing errors on the PI codes. Moreover, the digital data recording/reproducing method increases correction capability against several bytes to several tens bytes of errors generated at random without changing burst error correction length by performing this processing for respective PI codes by using interleave rules that are different as much as possible from one another.

公开(公告)号：US07719939B2

公开(公告)日：2010-05-18

申请号：US11290378

申请日：2005-11-29

申请人： Kenji Akahoshi ,  Taku Hoshizawa

发明人： Kenji Akahoshi ,  Taku Hoshizawa

IPC分类号： G11B5/09 ,  G11B7/00

CPC分类号： G11B20/1883 ,  G11B20/00086

摘要： On an optical disk medium, a spare area is allocated separately from a recording area. If the recording area includes a defective sector, alternate recording for the defective sector is performed in the spare area. An optical disk drive comprises: a medium information acquisition part which acquires, from the optical disk medium, medium information specific to the medium; and an area size determination part which determines the spare-area size suitable for the medium on the basis of the acquired medium information. The medium information is information about, for example, a media manufacturer, and a media type number. Further, there is provided a table which stores the relationship between the medium information and the optimum size of the spare area.

摘要翻译： 在光盘介质上，与记录区分开分配备用区。 如果记录区域包括缺陷扇区，则在备用区域中执行用于缺陷扇区的备用记录。 光盘驱动器包括：介质信息获取部分，从光盘介质获取介质特有的介质信息; 以及区域尺寸确定部，其基于所获取的介质信息来确定适合于介质的备用面积尺寸。 介质信息是关于例如媒体制造商和媒体类型号的信息。 此外，提供了存储介质信息与备用区域的最佳尺寸之间的关系的表。