公开(公告)号：US08250664B2

公开(公告)日：2012-08-21

申请号：US12524604

申请日：2008-02-22

申请人： Takahiro Yamaguchi ,  Masaya Yamamoto ,  Sanzo Ugawa ,  Toshihisa Nakano ,  Kaoru Murase

发明人： Takahiro Yamaguchi ,  Masaya Yamamoto ,  Sanzo Ugawa ,  Toshihisa Nakano ,  Kaoru Murase

IPC分类号： H04L29/06

CPC分类号： G11B23/0305 ,  G06F21/10 ,  G11B19/122 ,  G11B20/00086 ,  G11B23/283 ,  G11B23/30 ,  H04N5/85 ,  H04N5/913 ,  H04N2005/91342

摘要： A content protection data processing system and a playback device determine whether to permit playback of a content recorded in a recording medium, based on a type of the recording medium and a signature type of a signature attached to a program. Additionally, the content protection data processing system and the playback device switch a procedure relating to a digital signature for each signature type of the digital signature, which enables both the protection of the copyright of the content and the efficient manufacturing of commercial ROM media.

摘要翻译： 内容保护数据处理系统和重放装置根据记录介质的类型和附加到程序的签名的签名类型来确定是否允许记录在记录介质中的内容的回放。 此外，内容保护数据处理系统和回放装置切换与数字签名的每个签名类型相关的数字签名的过程，这使得能够保护内容的版权和商业ROM媒体的高效制造。

公开(公告)号：US20100100969A1

公开(公告)日：2010-04-22

申请号：US12524604

申请日：2008-02-22

申请人： Takahiro Yamaguchi ,  Masaya Yamamoto ,  Sanzo Ugawa ,  Toshihisa Nakano ,  Kaoru Murase

发明人： Takahiro Yamaguchi ,  Masaya Yamamoto ,  Sanzo Ugawa ,  Toshihisa Nakano ,  Kaoru Murase

IPC分类号： G06F21/24 ,  H04L9/32

CPC分类号： G11B23/0305 ,  G06F21/10 ,  G11B19/122 ,  G11B20/00086 ,  G11B23/283 ,  G11B23/30 ,  H04N5/85 ,  H04N5/913 ,  H04N2005/91342

摘要： If playback devices are prohibited from playing back contents recorded in R media, there occurs a problem that it takes more time to manufacture commercial ROM media. Conversely, if playback devices are permitted to play back contents recorded in R media, there occurs a problem that copyrights might be infringed. In view of these, the aim of the present invention is to provide a content protection data processing system and a playback device capable of determining whether to permit playback of a content recorded in a recording medium, based on a medium type of the recording medium and a signature type of a signature attached to a program, and switching a procedure relating to a digital signature for each signature type of the digital signature. This enables both the protection of the copyright of the content and the efficient manufacturing of commercial ROM media.

摘要翻译： 如果播放设备被禁止播放记录在R媒体中的内容，则出现制造商业ROM媒体需要更多时间的问题。 相反，如果播放设备被允许播放记录在R媒体中的内容，则会出现可能侵犯版权的问题。 鉴于这些，本发明的目的是提供一种内容保护数据处理系统和回放装置，其能够基于介质类型的记录介质来确定是否允许记录在记录介质中的内容的回放，以及 附加到程序的签名的签名类型，并且切换与数字签名的每个签名类型相关的数字签名的过程。 这既能保护内容的版权，又能实现商业ROM媒体的有效制造。

公开(公告)号：US07610626B2

公开(公告)日：2009-10-27

申请号：US10395135

申请日：2003-03-25

申请人： Takahiro Nagai ,  Kaoru Murase ,  Hideshi Ishihara

发明人： Takahiro Nagai ,  Kaoru Murase ,  Hideshi Ishihara

IPC分类号： G06F7/04 ,  G06F17/30 ,  G06F21/00

CPC分类号： H04N21/43615 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00333 ,  G11B20/00507 ,  G11B20/00536 ,  G11B20/00746 ,  G11B20/00753 ,  G11B20/00768 ,  H04N5/765 ,  H04N5/775 ,  H04N5/781 ,  H04N5/85 ,  H04N5/913 ,  H04N9/7921 ,  H04N9/8042 ,  H04N21/235 ,  H04N21/4345 ,  H04N21/435 ,  H04N21/4367 ,  H04N2005/91314 ,  H04N2005/91321 ,  H04N2005/91328 ,  H04N2005/91364 ,  H04N2005/91371

摘要： An MPEG2-PS format digital stream is composed of VOBUs and each VOBU except an RDI-Pack at the top is encrypted using a content key Kc. The content key Kc is an encryption key obtained by adding a title key Kt to CCI, and then converting a time varying coefficient using the sum. Accordingly, the resulting content key Kc differs for each VOBU. Since each content key Kc is all different for such a small unit of VOBU, copyright of the digital stream is firmly protected. CCI contained in RDI-Pack represents conditional Copy Freely status which allows the digital stream to be copied on condition that the digital stream is recorded only in encrypted form.

摘要翻译： MPEG2-PS格式的数字流由VOBU组成，除顶部的RDI-Pack之外的每个VOBU都使用内容密钥Kc进行加密。 内容密钥Kc是通过将标题密钥Kt添加到CCI而获得的加密密钥，然后使用该和来转换时变系数。 因此，对于每个VOBU，所得到的内容密钥Kc不同。 由于每个内容密钥Kc对于这样一个小单元的VOBU都是不同的，所以数字流的版权被牢固地保护。 RDI-Pack中包含的CCI表示条件复制自由状态，允许在数字流仅以加密形式记录的条件下复制数字流。

公开(公告)号：US07529160B2

公开(公告)日：2009-05-05

申请号：US10488195

申请日：2002-08-29

申请人： Yoshiho Gotoh ,  Miyuki Sasaki ,  Kaoru Murase ,  Tatsushi Bannai

发明人： Yoshiho Gotoh ,  Miyuki Sasaki ,  Kaoru Murase ,  Tatsushi Bannai

IPC分类号： G11B7/085

CPC分类号： H04N5/9205 ,  G11B20/10527 ,  G11B27/034 ,  G11B27/329 ,  G11B2020/10537 ,  G11B2020/1062 ,  G11B2020/1074 ,  G11B2020/10944 ,  G11B2020/10953 ,  G11B2020/10962 ,  G11B2220/20 ,  H04N5/85

摘要： In order to perform simultaneous recording of a plurality of pieces of real time data, a large capacity of buffer memories were required. In addition, it was difficult to reproduce data which was recorded by a different apparatus. The present invention has an objective of providing an information recording medium, a simultaneous recording method, and an information recording and reproduction apparatus which guarantee simultaneous recording. The simultaneous recording is guaranteed by reproducing data in each of areas having at least a minimum size fulfilling the simultaneous recording condition which allows for the number of access operations which is twice the number of pieces of real time data to be recorded, and when the data amount in the buffer is empty, switching the current recording operation to another recording operation to continue recording.

摘要翻译： 为了执行多条实时数据的同时记录，需要大容量的缓冲存储器。 此外，难以再现由不同装置记录的数据。 本发明的目的是提供一种保证同时记录的信息记录介质，同时记录方法和信息记录和再现装置。 通过在具有满足同时记录条件的至少最小尺寸的区域中再现数据来保证同时记录，其允许要记录的实时数据的数量的两倍的访问操作的数量，并且当数据 缓冲器中的量为空，将当前记录操作切换到另一记录操作以继续记录。

公开(公告)号：US07376067B2

公开(公告)日：2008-05-20

申请号：US10498761

申请日：2002-12-16

申请人： Wilhelmus Jacobus Van Gestel ,  Steven Broeils Luitjens ,  Kaoru Murase ,  Yoshiho Gotoh ,  Miyuki Sasaki ,  Masanobu Nakamura ,  Motoki Kato

发明人： Wilhelmus Jacobus Van Gestel ,  Steven Broeils Luitjens ,  Kaoru Murase ,  Yoshiho Gotoh ,  Miyuki Sasaki ,  Masanobu Nakamura ,  Motoki Kato

IPC分类号： G11B7/007

CPC分类号： G11B20/1833 ,  G11B20/12

摘要： When recording data on a medium where a certain data rate is required, an allocation manager in the player must allocate sections of the logical space in such a way that the recording medium is efficiently filled and that an adequate data rate can be guaranteed even in the presence of defective ECC blocks. The allocation rules for the allocation manager are complex. The rules can be simplified by placing a lower limit on the size of an extent and by increasing the size of the extent depending on the number of defect ECC blocks in the extent.

摘要翻译： 当在需要某一数据速率的介质上记录数据时，播放器中的分配管理器必须以这样的方式分配逻辑空间的部分，使得记录介质被有效地填充，并且即使在 存在有缺陷的ECC块。 分配管理器的分配规则很复杂。 可以通过对范围的大小设置下限并根据程度中缺陷ECC块的数量增加扩展的大小来简化规则。

公开(公告)号：US07324416B2

公开(公告)日：2008-01-29

申请号：US11746673

申请日：2007-05-10

申请人： Yoshiho Gotoh ,  Miyuki Sasaki ,  Kaoru Murase ,  Tatsushi Bannai

发明人： Yoshiho Gotoh ,  Miyuki Sasaki ,  Kaoru Murase ,  Tatsushi Bannai

IPC分类号： G11B7/007

CPC分类号： G11B20/10527 ,  G11B20/1251 ,  G11B27/034 ,  G11B27/329 ,  G11B2020/1062 ,  G11B2020/10944 ,  G11B2020/10962 ,  G11B2220/20 ,  H04N5/76 ,  H04N5/781 ,  H04N5/85 ,  H04N5/9205 ,  H04N5/937 ,  H04N9/8042

摘要： In order to perform simultaneous recording and reproduction, a large capacity of buffer memories were required. In addition, it was difficult to record data while reproducing data which was recorded by a different apparatus. The present invention has an objective of providing an information recording medium, a simultaneous recording and reproduction method, and an information recording and reproduction apparatus which guarantee simultaneous recording and reproduction. The simultaneous recording and reproduction is guaranteed by reproducing data recorded in an area having at least a minimum size fulfilling the simultaneous recording and reproduction condition which allows for four access operations, recording data in an area having at least the same size, and performing reproduction and recording alternately by switching reproduction to recording when the data amount in the reproduction buffer becomes full and switching recording to reproduction when the data amount in the recording buffer becomes empty.

摘要翻译： 为了执行同时的记录和再现，需要大容量的缓冲存储器。 此外，在再现由不同装置记录的数据时难以记录数据。 本发明的目的是提供一种保证同时记录和再现的信息记录介质，同时记录和再现方法以及信息记录和再现装置。 通过再现记录在具有满足同时记录和再现条件的最小尺寸的区域中的数据来保证同时记录和再现，该条件允许四次访问操作，在具有至少相同尺寸的区域中记录数据，并执行再现和 当再现缓冲器中的数据量变满时，通过切换再现到记录来交替记录，并且当记录缓冲器中的数据量变空时，将记录切换为再现。

公开(公告)号：US20060251391A1

公开(公告)日：2006-11-09

申请号：US11454794

申请日：2006-06-19

申请人： Shinichi Saeki ,  Kaoru Murase ,  Tomoyuki Okada ,  Kazuhiro Tsuga ,  Tokuo Nakatani

发明人： Shinichi Saeki ,  Kaoru Murase ,  Tomoyuki Okada ,  Kazuhiro Tsuga ,  Tokuo Nakatani

IPC分类号： H04N7/00

CPC分类号： H04N9/8042 ,  G11B19/022 ,  G11B27/005 ,  G11B27/034 ,  G11B27/036 ,  G11B27/105 ,  G11B27/3027 ,  G11B27/329 ,  G11B27/34 ,  G11B2220/216 ,  G11B2220/2562 ,  G11B2220/2575 ,  H01L27/1087 ,  H04N5/775 ,  H04N5/85 ,  H04N9/8063

摘要： An optical disc including: a data area storing one or more video objects; and a time map area storing time map information. Each video object includes a plurality of video object units. The time map information includes a first time table and a second time table for each video object. Each first time table includes: addresses of video object units in a corresponding video object; and indicators. The addresses are arranged in order and indicate storage positions of the video object units that correspond to reproduction points that differ by a predetermined time unit. The predetermined time unit is longer than a maximum reproduction period of a video object unit. The indicators specify the video object units which respectively correspond to the addresses. Each second time table includes an entry for each video object unit in the corresponding video object. The entries are arranged in order. Each second time table includes a reproduction period and a data size of each video object unit.

公开(公告)号：US07079757B2

公开(公告)日：2006-07-18

申请号：US09910909

申请日：2001-07-24

申请人： Shinichi Saeki ,  Kaoru Murase ,  Tomoyuki Okada ,  Kazuhiro Tsuga ,  Tokuo Nakatani

发明人： Shinichi Saeki ,  Kaoru Murase ,  Tomoyuki Okada ,  Kazuhiro Tsuga ,  Tokuo Nakatani

IPC分类号： H04N5/85

CPC分类号： H04N9/8042 ,  G11B19/022 ,  G11B27/005 ,  G11B27/034 ,  G11B27/036 ,  G11B27/105 ,  G11B27/3027 ,  G11B27/329 ,  G11B27/34 ,  G11B2020/00079 ,  G11B2220/216 ,  G11B2220/2562 ,  G11B2220/2575 ,  H01L27/1087 ,  H04N5/775 ,  H04N5/85 ,  H04N9/8063

摘要： An optical disc including: a data area storing one or more video objects; and a time map area storing time map information. Each video object includes a plurality of video object units. The time map information includes a first time table and a second time table for each video object. Each first time table includes: addresses of video object units in a corresponding video object; and indicators. The addresses are arranged in order and indicate storage positions of the video object units that correspond to reproduction points that differ by a predetermined time unit. The predetermined time unit is longer than a maximum reproduction period of a video object unit. The indicators specify the video object units which respectively correspond to the addresses. Each second time table includes an entry for each video object unit in the corresponding video object. The entries are arranged in order. Each second time table includes a reproduction period and a data size of each video object unit.

公开(公告)号：US20060140590A1

公开(公告)日：2006-06-29

申请号：US11356141

申请日：2006-02-17

申请人： Kaoru Murase ,  Tomoyuki Okada ,  Kazuhiro Tsuga ,  Noriko Sugimoto

发明人： Kaoru Murase ,  Tomoyuki Okada ,  Kazuhiro Tsuga ,  Noriko Sugimoto

IPC分类号： H04N7/08

CPC分类号： G11B27/034 ,  G11B19/022 ,  G11B20/10527 ,  G11B27/105 ,  G11B27/329 ,  G11B27/34 ,  G11B2020/10546 ,  G11B2020/10592 ,  G11B2220/216 ,  G11B2220/2562 ,  G11B2220/2575 ,  H04N5/85 ,  H04N9/8045 ,  H04N9/8211

摘要： Optical discs formatted to record plural audio streams of different content for reproduction with a single video stream can result in audio output of content unexpected by the user depending upon the audio stream configuration contained in the AV stream reproduced. This can confuse and cause the user to change the audio output after reproduction starts. To prevent this, information indicating the type of audio stream configuration contained in each AV stream on the optical disc is stored with each audio stream. This audio stream type information is presented to the user on the same screen from which an AV program is selected for playback. The use can thus know before playback starts what audio stream channel is preselected for playback, and can change the audio channel as desired before payback starts.

摘要翻译： 用于记录用于用单个视频流再现的不同内容的多个音频流的光盘可以导致用户意外的内容的音频输出，这取决于包含在再现的AV流中的音频流配置。 这可能会混淆，并导致用户在再现开始后更改音频输出。 为了防止这种情况，与每个音频流一起存储指示包含在光盘上的每个AV流中的音频流配置的类型的信息。 该音频流类型信息在选择AV节目用于播放的同一屏幕上呈现给用户。 因此，在播放开始之前可以知道使用什么音频流频道进行播放，并且可以在投资回收开始之前根据需要改变音频频道。

公开(公告)号：US06480828B1

公开(公告)日：2002-11-12

申请号：US09675156

申请日：2000-09-29

申请人： Tomoyuki Okada ,  Kaoru Murase ,  Noriko Sugimoto ,  Kazuhiro Tsuga

发明人： Tomoyuki Okada ,  Kaoru Murase ,  Noriko Sugimoto ,  Kazuhiro Tsuga

IPC分类号： G10L2106

CPC分类号： G11B27/34 ,  G11B20/10527 ,  G11B27/034 ,  G11B27/036 ,  G11B27/105 ,  G11B27/3027 ,  G11B27/329 ,  G11B27/36 ,  G11B2020/10592 ,  G11B2220/216 ,  G11B2220/2562 ,  G11B2220/2575 ,  H04N5/05 ,  H04N5/85 ,  H04N9/8042 ,  H04N9/8063

摘要： The invention provides an information recording medium, such as an optical disk, having a large capacity and being capable of performing read/write operations at high speeds. The recording medium includes an audio stream prepared for after-recording data, and a audio attribute information having a bit rate information to the recorded audio stream as a management information. A recorder according to the invention has a check unit for checking, in advance, the possibility of after-recording operation of the recorder to the audio stream to be after-recorded with reference to the bit rate information of the audio attribute information.

摘要翻译： 本发明提供了一种具有大容量并且能够以高速执行读/写操作的诸如光盘的信息记录介质。 记录介质包括为后期记录数据准备的音频流和具有比特率信息的音频属性信息作为管理信息记录在记录音频流中。 根据本发明的记录器具有一个检查单元，用于参考音频属性信息的比特率信息预先检查记录器对待记录的音频流的后记录操作的可能性。