公开(公告)号：US07324740B2

公开(公告)日：2008-01-29

申请号：US11057763

申请日：2005-02-14

申请人： Tadashi Nakamura ,  Masanori Itoh ,  Yasumori Hino ,  Masafumi Shimotashiro

发明人： Tadashi Nakamura ,  Masanori Itoh ,  Yasumori Hino ,  Masafumi Shimotashiro

IPC分类号： H04N5/00 ,  H04N7/00

CPC分类号： G11B27/326 ,  G06F3/0601 ,  G06F17/30067 ,  G06F2003/0697 ,  G11B27/034 ,  G11B27/11 ,  G11B27/329 ,  G11B27/34 ,  G11B27/36 ,  G11B2220/213 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2525 ,  G11B2220/2562 ,  G11B2220/2575 ,  G11B2220/65 ,  H04N5/85 ,  H04N9/8042

摘要： An AV data recording apparatus and an AV data recording method are provided, in which even in the case of using the UDF file system, seeking can be minimized. The AV data recording method has file management information for managing continuous blocks on a disk as an extent, and dividing the extent into groups so as to manage the extent as a file, wherein a new directory is created on a disk, and a not recorded but allocated extent is kept as a reservation region for recording file management information.

摘要翻译： 提供一种AV数据记录装置和AV数据记录方法，其中即使在使用UDF文件系统的情况下，可以最小化搜索。 AV数据记录方法具有用于以盘区管理盘上的连续块的文件管理信息，并将盘区划分成组，以便管理作为文件的盘区，其中在盘上创建新目录，并且不记录 但是分配的范围被保存为用于记录文件管理信息的预留区域。

公开(公告)号：US07218844B2

公开(公告)日：2007-05-15

申请号：US11057444

申请日：2005-02-14

申请人： Tadashi Nakamura ,  Masanori Itoh ,  Yasumori Hino ,  Masafumi Shimotashiro

发明人： Tadashi Nakamura ,  Masanori Itoh ,  Yasumori Hino ,  Masafumi Shimotashiro

IPC分类号： H04N5/00 ,  H04N7/00

CPC分类号： G11B27/326 ,  G06F3/0601 ,  G06F17/30067 ,  G06F2003/0697 ,  G11B27/034 ,  G11B27/11 ,  G11B27/329 ,  G11B27/34 ,  G11B27/36 ,  G11B2220/213 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2525 ,  G11B2220/2562 ,  G11B2220/2575 ,  G11B2220/65 ,  H04N5/85 ,  H04N9/8042

摘要： An AV data recording apparatus and an AV data recording method are provided, in which even in the case of using the UDF file system, seeking can be minimized. The AV data recording method has file management information for managing continuous blocks on a disk as an extent, and dividing the extent into groups so as to manage the extent as a file, wherein a new directory is created on a disk, and a not recorded but allocated extent is kept as a reservation region for recording file management information.

公开(公告)号：US07136884B2

公开(公告)日：2006-11-14

申请号：US10220368

申请日：2001-02-28

申请人： Makoto Mitsuda ,  Masanori Ito ,  Masafumi Shimotashiro ,  Tadashi Nakamura ,  Yasumori Hino

发明人： Makoto Mitsuda ,  Masanori Ito ,  Masafumi Shimotashiro ,  Tadashi Nakamura ,  Yasumori Hino

IPC分类号： G06F12/00

CPC分类号： G06F3/0601 ,  G06F17/30017 ,  G06F2003/0697 ,  G11B27/329 ,  G11B2020/10537 ,  G11B2220/216 ,  G11B2220/2562 ,  G11B2220/2575 ,  Y10S707/99956

摘要： A file management method for reducing a seek operation to a minimum even when a UDF file system is used is provided. The file management method has file management information for managing contiguous blocks on a disc as an extent and for grouping the extent as a file and managing the file, and includes the steps of: when creating a new directory on the disc, reserving as a reserved area for recording file management information on the file a file or a data area in the directory; and reserving a directory block having a predetermined size in the reserved area for recording a file entry of the directory and a file identifier descriptor of the directory.

公开(公告)号：US20060120224A1

公开(公告)日：2006-06-08

申请号：US10524515

申请日：2003-09-25

申请人： Tadashi Nakamura ,  Yasumori Hino

发明人： Tadashi Nakamura ,  Yasumori Hino

IPC分类号： G11B17/22

CPC分类号： G11B27/105 ,  G11B27/034 ,  G11B27/329 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2562

摘要： A recording/playback apparatus of the present invention is a recording/playback apparatus for recording or playing back a video data file to/from a recording medium, comprising: a recording unit operable to record a video data file, an additional data file related to the video data file, and management information which includes recording resume information indicating a last recorded file; and a controlling unit operable to control the recording unit to record the recording resume information indicating the video data file which was most recently recorded as the last recorded file, into the management information when the video data file and the additional data file are recorded by the recording unit.

摘要翻译： 本发明的记录/重放装置是用于向/从记录介质记录或再现视频数据文件的记录/重放装置，包括：记录单元，用于记录视频数据文件，与 视频数据文件和包括表示最后记录文件的记录恢复信息的管理信息; 以及控制单元，用于当视频数据文件和附加数据文件被记录在视频数据文件和附加数据文件中时，控制记录单元将表示最近被记录为最后记录文件的视频数据文件的记录恢复信息记录到管理信息中 录音单元

公开(公告)号：US07012857B2

公开(公告)日：2006-03-14

申请号：US10297012

申请日：2001-05-28

申请人： Motoyoshi Murakami ,  Yuko Kawaguchi ,  Yasumori Hino

发明人： Motoyoshi Murakami ,  Yuko Kawaguchi ,  Yasumori Hino

IPC分类号： G11B11/00

CPC分类号： G11B11/10515 ,  G11B11/10582 ,  G11B11/10584 ,  G11B11/10586

摘要： A magneto optical recording medium capable of stable recording and readout using a DWDD system is provided. The magneto optical recording medium of the present invention comprises an optical disk substrate and a multilayer recording film comprising essentially a readout layer, an intermediate layer, and a recording layer successively formed on top of the substrate. The readout layer has a smaller magnetic domain wall coercivity than the recording layer. The intermediate layer comprises a magnetic layer whose Curie temperature is lower than the readout layer and the recording layer. A recorded/readout magnetic domain corresponding to recorded/readout information is formed only in a groove area of the optical disk substrate. The thickness of the recording film at the boundary between mutually adjacent recording track areas is smaller than the thickness of the recording film in the center portions of the recording track areas.

摘要翻译： 提供了能够使用DWDD系统稳定记录和读出的磁光记录介质。 本发明的磁光记录介质包括光盘基片和多层记录膜，该多层记录膜基本上包括依次形成在基底上的读出层，中间层和记录层。 读出层具有比记录层更小的磁畴壁矫顽力。 中间层包括居里温度低于读出层和记录层的磁性层。 与记录/读出信息相对应的记录/读出磁畴仅形成在光盘基板的槽区域中。 相邻的记录轨道区域之间的边界处的记录膜的厚度小于记录轨道区域的中心部分中记录膜的厚度。

公开(公告)号：US06999398B2

公开(公告)日：2006-02-14

申请号：US10106110

申请日：2002-03-27

申请人： Masakuni Yamamoto ,  Yasushi Hozumi ,  Yasumori Hino

发明人： Masakuni Yamamoto ,  Yasushi Hozumi ,  Yasumori Hino

IPC分类号： G11B7/45 ,  G11B7/24

CPC分类号： G11B7/00718 ,  G11B7/0045 ,  G11B11/10595

摘要： Information is recorded on an information recording medium such as a magneto-optical recording medium, having two recording tracks arranged alternately, typically in a double spiral manner. The two recording tracks have different recording characteristics and information is firstly recorded on the recording track less liable to cross write, typically on a land section, and subsequently on the recording track more liable to cross write, typically on a groove section.

摘要翻译： 信息被记录在诸如磁光记录介质的信息记录介质上，具有两个交替布置的记录轨道，通常以双螺旋方式布置。 两个记录轨道具有不同的记录特性，并且信息首先被记录在记录轨道上，较不易于跨写入，通常在陆地部分上，并且随后在记录轨道上更容易进行交叉写入，通常在凹槽部分上。

公开(公告)号：US06965545B2

公开(公告)日：2005-11-15

申请号：US10110613

申请日：2001-08-16

申请人： Yasumori Hino ,  Masayoshi Shioya ,  Kazumasa Hirano ,  Shohei Yumita

发明人： Yasumori Hino ,  Masayoshi Shioya ,  Kazumasa Hirano ,  Shohei Yumita

IPC分类号： G11B7/007 ,  G11B7/013 ,  G11B7/09 ,  G11B7/26 ,  G11B11/105 ,  G11B11/00

CPC分类号： G11B7/24085 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0938 ,  G11B7/261 ,  G11B11/10576 ,  G11B11/10578

摘要： An information recording medium for reproducing information by irradiation with a laser beam condensed by an objective lens with a numerical aperture NA includes a disk-shaped substrate and a recording layer disposed on the substrate. On the surface of the substrate, a plurality of prepit regions and a plurality of data regions are disposed alternately along spiral or concentric virtual track centers. Each prepit region includes a pair of wobble pits for tracking servo, and a length L (μm) of the wobble pit along the virtual track center, a wavelength λ (μm) of the laser beam, and a numerical aperture NA satisfy a relationship: 0.3≦L. NA/λ≦0.65.

摘要翻译： 用于通过用具有数值孔径NA的物镜聚光的激光束照射来再现信息的信息记录介质包括盘形基板和设置在基板上的记录层。 在基板的表面上，多个预凹坑区域和多个数据区域沿着螺旋或同心的虚拟轨道中心交替设置。 每个预凹坑区域包括用于跟踪伺服的一对摆动凹坑，沿着虚拟轨道中心的摆动凹坑的长度L（母体），激光束的波长λ（mum）和数值孔径NA满足关系： 0.3 <= L。 NA /λ<= 0.65。

公开(公告)号：US20050147390A1

公开(公告)日：2005-07-07

申请号：US11057444

申请日：2005-02-14

申请人： Tadashi Nakamura ,  Masanori Itoh ,  Yasumori Hino ,  Masafumi Shimotashiro

发明人： Tadashi Nakamura ,  Masanori Itoh ,  Yasumori Hino ,  Masafumi Shimotashiro

IPC分类号： G06F3/06 ,  G06F17/30 ,  G11B20/12 ,  G11B27/034 ,  G11B27/11 ,  G11B27/32 ,  G11B27/34 ,  G11B27/36 ,  H04N5/85 ,  H04N9/804 ,  H04N5/781

CPC分类号： G11B27/326 ,  G06F3/0601 ,  G06F17/30067 ,  G06F2003/0697 ,  G11B27/034 ,  G11B27/11 ,  G11B27/329 ,  G11B27/34 ,  G11B27/36 ,  G11B2220/213 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2525 ,  G11B2220/2562 ,  G11B2220/2575 ,  G11B2220/65 ,  H04N5/85 ,  H04N9/8042

摘要： An AV data recording apparatus and an AV data recording method are provided, in which even in the case of using the UDF file system, seeking can be minimized. The AV data recording method has file management information for managing continuous blocks on a disk as an extent, and dividing the extent into groups so as to manage the extent as a file, wherein a new directory is created on a disk, and a not recorded but allocated extent is kept as a reservation region for recording file management information.

公开(公告)号：US06873789B1

公开(公告)日：2005-03-29

申请号：US09629744

申请日：2000-07-31

申请人： Tadashi Nakamura ,  Masanori Itoh ,  Yasumori Hino ,  Masafumi Shimotashiro

发明人： Tadashi Nakamura ,  Masanori Itoh ,  Yasumori Hino ,  Masafumi Shimotashiro

IPC分类号： G06F3/06 ,  G06F17/30 ,  G11B20/12 ,  G11B27/034 ,  G11B27/11 ,  G11B27/32 ,  G11B27/34 ,  G11B27/36 ,  H04N5/85 ,  H04N9/804 ,  H04N7/04

CPC分类号： G11B27/326 ,  G06F3/0601 ,  G06F17/30067 ,  G06F2003/0697 ,  G11B27/034 ,  G11B27/11 ,  G11B27/329 ,  G11B27/34 ,  G11B27/36 ,  G11B2220/213 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2525 ,  G11B2220/2562 ,  G11B2220/2575 ,  G11B2220/65 ,  H04N5/85 ,  H04N9/8042

摘要： An AV data recording apparatus and an AV data recording method are provided, in which even in the case of using the UDF file system, seeking can be minimized. The AV data recording method has file management information for managing continuous blocks on a disk as an extent, and dividing the extent into groups so as to manage the extent as a file, wherein a new directory is created on a disk, and a not recorded but allocated extent is kept as a reservation region for recording file management information.

公开(公告)号：US20050002318A1

公开(公告)日：2005-01-06

申请号：US10902328

申请日：2004-07-29

申请人： Motoyoshi Murakami ,  Takeshi Sakaguchi ,  Yasumori Hino

发明人： Motoyoshi Murakami ,  Takeshi Sakaguchi ,  Yasumori Hino

IPC分类号： G11B3/00 ,  G11B11/00 ,  G11B11/105

CPC分类号： G11B11/10578 ,  G11B11/10515 ,  G11B11/10582 ,  G11B11/10584 ,  G11B11/10586

摘要： A magneto-optical recording medium, including a recording layer, a transfer control layer magnetically coupled to the recording layer, and a reproduction layer. The recording layer includes a recording magnetic domain in which information is recorded by a magnetization direction vertical to the surface of the film. The reproduction layer includes a reproduction magnetic domain in which information in the recording layer is transferred and formed as a magnetization direction by magnetic coupling. The direction of magnetization of the recording magnetic domain of the recording layer and the direction of magnetization of the transfer control layer corresponding to the recording magnetic domain are in opposite directions in at least part of the range of temperatures less than a transfer temperature where the reproduction magnetic domain is transferred to the reproduction layer. The Curie point temperature of the transfer control layer is higher than this transfer temperature.

摘要翻译： 包括记录层，磁耦合到记录层的转移控制层和再现层的磁光记录介质。 记录层包括通过垂直于胶片表面的磁化方向记录信息的记录磁畴。 再现层包括其中记录层中的信息通过磁耦合传送并形成为磁化方向的再现磁畴。 记录层的记录磁畴的磁化方向和对应于记录磁畴的转印控制层的磁化方向在至少部分小于转印温度的范围内的方向上是相反的，其中再生 磁畴被传送到再现层。 转移控制层的居里点温度高于此转印温度。