公开(公告)号：US20060184857A1

公开(公告)日：2006-08-17

申请号：US11366140

申请日：2006-03-02

申请人： Yuji Takagi ,  Makoto Usui ,  Hiroyuki Yabuno

发明人： Yuji Takagi ,  Makoto Usui ,  Hiroyuki Yabuno

IPC分类号： H03M13/00

CPC分类号： G11B20/1833 ,  G11B20/1803 ,  G11B20/1866 ,  G11B2020/1287 ,  G11B2220/2562 ,  H03M13/29 ,  H03M13/2954

摘要： A recording medium is provided for storing a data stream containing first error correcting codes obtained by encoding first information, second error correcting codes obtained by encoding second information, and synchronization signals. The first error correcting codes have a first correction capability, and the second error correcting codes have a second correction capability higher than the first correction capability. In the data stream, the second error correcting codes and the synchronization signals alternatively interleave the first error correcting codes. The second information includes address information.

摘要翻译： 提供一种记录介质，用于存储包含通过对第一信息进行编码而获得的第一纠错码，通过编码第二信息获得的第二纠错码和同步信号的数据流。 第一纠错码具有第一校正能力，第二纠错码的第二校正能力高于第一校正能力。 在数据流中，第二纠错码和同步信号交错地交织第一纠错码。 第二信息包括地址信息。

公开(公告)号：US20090034383A1

公开(公告)日：2009-02-05

申请号：US12088129

申请日：2006-09-29

申请人： Shoei Kobayashi ,  Tamotsu Yamagami ,  Yuji Takagi ,  Makoto Usui ,  Paulus Gijsbertus Petrus Weijenbergh ,  Bart Van Rompaey

发明人： Shoei Kobayashi ,  Tamotsu Yamagami ,  Yuji Takagi ,  Makoto Usui ,  Paulus Gijsbertus Petrus Weijenbergh ,  Bart Van Rompaey

IPC分类号： G11B20/18

CPC分类号： G11B20/00086 ,  G11B20/00304 ,  G11B20/00623 ,  G11B20/10

摘要： To record specific information to a disk-shaped record medium and reproduce the recorded specific information without any influence on the error correction capability. Copy protection information (CPID) having an error correction code appended thereto, shuffled and otherwise treated is sent as a CPID bit block to an EDC rewrite circuit (14). The EDC rewrite circuit (14) rewrites an error detection code appended to user data in each sector in accordance with bit information in the CPID bit block. Thereafter, the data in each sector is scrambled, and an ECC block including a plurality of sectors is modulated with an error correction code and sync signal appended thereto. The modulated signal is recorded in a reserve area of a lead-in area of the disk-shaped record medium. During reproduction, CPID is restored based on the result of error detection of each sector.

摘要翻译： 将特定信息记录到盘形记录介质，并且再现所记录的特定信息，而不会对纠错能力产生任何影响。 将具有附加纠错码的复制保护信息（CPID）作为CPID位块发送到EDC重写电路（14）。 EDC重写电路（14）根据CPID位块中的比特信息重写附加到每个扇区中的用户数据的错误检测码。 此后，每个扇区中的数据被加扰，并且包括多个扇区的ECC块用附加的纠错码和同步信号进行调制。 调制信号被记录在盘形记录介质的导入区域的保留区域中。 在再现期间，CPID基于每个扇区的错误检测结果而被恢复。

公开(公告)号：US07284180B2

公开(公告)日：2007-10-16

申请号：US11379314

申请日：2006-04-19

申请人： Yuji Takagi ,  Makoto Usui ,  Hiroyuki Yabuno

发明人： Yuji Takagi ,  Makoto Usui ,  Hiroyuki Yabuno

IPC分类号： H03M13/00

CPC分类号： G11B20/1833 ,  G11B20/1803 ,  G11B20/1866 ,  G11B2020/1287 ,  G11B2220/2562 ,  H03M13/29 ,  H03M13/2954

摘要： A recording medium for storing a data stream is comprised of first error correcting codes obtained by encoding first information, and second error correcting codes obtained by encoding second information, and synchronization signals. The first error correcting codes have a first correction capability. The second error correcting codes have a second correction capability higher than the first correction capability. In the data stream, the second error correcting codes and the synchronization signals alternatively interleave the first error correcting codes. The first and second error correcting codes are encoded using Reed-Solomon codes.

摘要翻译： 用于存储数据流的记录介质包括通过对第一信息进行编码获得的第一纠错码和通过编码第二信息获得的第二纠错码和同步信号。 第一纠错码具有第一校正能力。 第二纠错码具有比第一校正能力高的第二校正能力。 在数据流中，第二纠错码和同步信号交错地交织第一纠错码。 使用里德 - 所罗门码对第一和第二纠错码进行编码。

公开(公告)号：US07277368B2

公开(公告)日：2007-10-02

申请号：US10702618

申请日：2003-11-07

申请人： Toyoji Gushima ,  Makoto Usui ,  Yuji Takagi ,  Yuichi Hashimoto

发明人： Toyoji Gushima ,  Makoto Usui ,  Yuji Takagi ,  Yuichi Hashimoto

IPC分类号： G11B7/00

CPC分类号： G11B27/24 ,  G11B20/10009 ,  G11B20/18 ,  G11B27/10 ,  G11B27/3027 ,  G11B2020/10675 ,  G11B2020/10759 ,  G11B2220/216 ,  G11B2220/2562

摘要： Stable playback performance is assured and data loss due to out-of-step synchronization is reduced even when playback signal quality deteriorates due to such cause as a recording medium defect. The playback method applies to a recording medium to which data is recorded in block units containing multiple fixed-length frames together with block address information. The data and the block address information are acquired from the recording medium. The recording position of each frame in a block is then predicted from the acquired block address information. Synchronization is then set to the frame level based on the acquired data, and the memory address for storing the acquired data is determined based on the predicted recording position. The acquired data is then stored at the determined memory address.

摘要翻译： 确保稳定的播放性能，并且即使由于诸如记录介质缺陷的原因而使播放信号质量劣化时，由于失步同步引起的数据丢失也降低。 播放方法适用于以块单位记录数据的记录介质，其中包含多个固定长度帧以及块地址信息。 从记录介质获取数据和块地址信息。 然后从所获取的块地址信息中预测块中每帧的记录位置。 然后基于获取的数据将同步设置为帧级，并且基于预测的记录位置来确定用于存储获取的数据的存储器地址。 然后将所获取的数据存储在所确定的存储器地址处。

公开(公告)号：US07272772B2

公开(公告)日：2007-09-18

申请号：US11366140

申请日：2006-03-02

申请人： Yuji Takagi ,  Makoto Usui ,  Hiroyuki Yabuno

发明人： Yuji Takagi ,  Makoto Usui ,  Hiroyuki Yabuno

IPC分类号： H03M13/00

CPC分类号： G11B20/1833 ,  G11B20/1803 ,  G11B20/1866 ,  G11B2020/1287 ,  G11B2220/2562 ,  H03M13/29 ,  H03M13/2954

摘要： A recording medium is provided for storing a data stream containing first error correcting codes obtained by encoding first information, second error correcting codes obtained by encoding second information, and synchronization signals. The first error correcting codes have a first correction capability, and the second error correcting codes have a second correction capability higher than the first correction capability. In the data stream, the second error correcting codes and the synchronization signals alternatively interleave the first error correcting codes. The second information includes address information.

摘要翻译： 提供一种记录介质，用于存储包含通过对第一信息进行编码而获得的第一纠错码，通过编码第二信息获得的第二纠错码和同步信号的数据流。 第一纠错码具有第一校正能力，第二纠错码的第二校正能力高于第一校正能力。 在数据流中，第二纠错码和同步信号交错地交织第一纠错码。 第二信息包括地址信息。

公开(公告)号：US20060236193A1

公开(公告)日：2006-10-19

申请号：US11379315

申请日：2006-04-19

申请人： Yuji Takagi ,  Makoto Usui ,  Hiroyuki Yabuno

发明人： Yuji Takagi ,  Makoto Usui ,  Hiroyuki Yabuno

IPC分类号： H03M13/00

CPC分类号： G11B20/1833 ,  G11B20/1803 ,  G11B20/1866 ,  G11B2020/1287 ,  G11B2220/2562 ,  H03M13/29 ,  H03M13/2954

摘要： A recording medium for storing a data stream is comprised of first error correcting codes obtained by encoding first information, second error correcting codes obtained by encoding second information, and synchronization signals. In the data stream, the second error correcting codes and the synchronization signals alternatively interleave the first error correcting codes. The second error correcting codes have the same number of corrections as the first error correcting codes. A code length of the second error correcting codes is shorter than a code length of the first error correcting codes.

摘要翻译： 用于存储数据流的记录介质包括通过对第一信息进行编码而获得的第一纠错码，通过编码第二信息获得的第二纠错码和同步信号。 在数据流中，第二纠错码和同步信号交错地交织第一纠错码。 第二纠错码具有与第一纠错码相同的校正次数。 第二纠错码的码长短于第一纠错码的码长。

公开(公告)号：US20120082018A1

公开(公告)日：2012-04-05

申请号：US13322666

申请日：2011-03-24

申请人： Toyoji Gushima ,  Makoto Usui ,  Yuji Takagi

发明人： Toyoji Gushima ,  Makoto Usui ,  Yuji Takagi

IPC分类号： G11B7/09

CPC分类号： G11B20/1217 ,  G11B7/0037 ,  G11B7/0045 ,  G11B7/006 ,  G11B7/00736 ,  G11B20/1024 ,  G11B2020/1277 ,  G11B2020/1288 ,  G11B2220/218 ,  G11B2220/2537

摘要： Provided are an optical disc recording device and a recording signal generating device which enable to correct displacement between a reproducing position of a reproduction signal from a concave-convex mark preformed in an optical disc, and a recording position of second information to be recorded in synchronism with the reproduction signal, and stably and speedily record the second information. A digital signal processor (202) specifies a reproducing position in the concave-convex mark, using a reproduction signal and a channel clock. A recording signal generator (211) generates a recording signal alternately including a plurality of additionally recordable data, each of which includes second information and has a predetermined length, and a plurality of dummy data. A recording position controller (110) detects a recording position displacement amount representing a displacement amount between the reproducing position and a recording position of the additionally recordable data, using the reproducing position and the reading signal. A recording length adjustor (208) increases or decreases the recording length of dummy data in accordance with the recording position displacement amount.

摘要翻译： 提供了一种光盘记录装置和记录信号产生装置，其能够校正来自在光盘中预先形成的凹凸标记的再现信号的再现位置与待同步记录的第二信息的记录位置之间的位移 具有再现信号，并稳定且快速地记录第二信息。 数字信号处理器（202）使用再现信号和通道时钟指定凹凸标记中的再现位置。 记录信号发生器（211）交替地产生包括多个附加可记录数据的记录信号，每个可附加记录数据包括第二信息并具有预定长度，以及多个伪数据。 记录位置控制器（110）使用再现位置和读取信号来检测表示可附加记录的数据的再现位置和记录位置之间的位移量的记录位置位移量。 记录长度调节器（208）根据记录位置位移量增加或减少虚拟数据的记录长度。

公开(公告)号：US20100188721A1

公开(公告)日：2010-07-29

申请号：US12439688

申请日：2007-10-03

申请人： Yuji Takagi ,  Makoto Usui ,  Kenichi Kasazumi

发明人： Yuji Takagi ,  Makoto Usui ,  Kenichi Kasazumi

IPC分类号： G03H1/04

CPC分类号： G11B7/0065 ,  G03H1/16 ,  G11B20/12 ,  G11C13/045

摘要： A two-dimensional encoder stores data on a holographic memory. The encoder encodes data of k bits (where k is an integer and k≧3) into n pixels arranged two-dimensionally (where n is an integer and n≧6). The encoder includes a first processing section 31 for classifying the n pixels into first and second groups of subblocks 11 and 12 using k1 bits out of the data of k bits (where k1 is an integer and k1≧1). Each of the subblocks 11 in the first group consists of m pixels (where m is an integer and m≧2), and the number of the subblocks 11 forming the first group is s1 (where s1 is an integer and s1≧2). Each of the subblocks 12 in the second group also consists of m pixels, and the number of the subblocks 12 forming the second group is s2 (where s2 is an integer and s2≧1). The encoder further includes a second processing section 32 for turning ON p pixels (where p is an integer and 1≦p≦m/2) out of the m pixels forming each subblock 11 in the first group and turning OFF all of the m pixels forming each subblock 12 in the second group using the other k2 bits of the data of k bits (where k2=k−k1).

摘要翻译： 二维编码器将数据存储在全息存储器上。 编码器将k位（其中k是整数，k≥3）的数据编码成二维布置的n个像素（其中n是整数，n≥6）。 编码器包括第一处理部分31，用于使用k位数据（其中k1是整数，k1≥1）中的k1位将n个像素分类为第一和第二子块11和12组。 第一组中的每个子块11由m个像素（其中m是整数，m≥2）组成，并且形成第一组的子块11的数量是s1（其中s1是整数，s1≥2）。 第二组中的每个子块12也由m个像素组成，并且形成第二组的子块12的数量是s2（其中s2是整数，s2≥1）。 编码器还包括用于在形成第一组中的每个子块11的m个像素中打开p个像素（其中p是整数和1＆nlE; p＆nlE; m / 2）的第二处理部分32，并且关闭所有m个像素 使用k位数据的其他k2位（其中k2 = k-k1）来形成第二组中的每个子块12。

公开(公告)号：US07493546B2

公开(公告)日：2009-02-17

申请号：US11846708

申请日：2007-08-29

申请人： Yuji Takagi ,  Makoto Usui ,  Hiroyuki Yabuno

发明人： Yuji Takagi ,  Makoto Usui ,  Hiroyuki Yabuno

IPC分类号： H03M13/00

CPC分类号： G11B20/1833 ,  G11B20/1803 ,  G11B20/1866 ,  G11B2020/1287 ,  G11B2220/2562 ,  H03M13/29 ,  H03M13/2954

摘要： A recording medium for storing a data stream is comprised of first error correcting codes obtained by encoding first information, second error correcting codes obtained by encoding second information, and synchronization signals. In the data stream, the second error correcting codes and the synchronization signals alternatively interleave the first error correcting codes. The second error correcting codes have the same number of corrections as the first error correcting codes. A code length of the second error correcting codes is shorter than a code length of the first error correcting codes.

摘要翻译： 用于存储数据流的记录介质包括通过对第一信息进行编码而获得的第一纠错码，通过编码第二信息获得的第二纠错码和同步信号。 在数据流中，第二纠错码和同步信号交错地交织第一纠错码。 第二纠错码具有与第一纠错码相同的校正次数。 第二纠错码的码长短于第一纠错码的码长。

公开(公告)号：US20070300124A1

公开(公告)日：2007-12-27

申请号：US11846708

申请日：2007-08-29

申请人： Yuji Takagi ,  Makoto Usui ,  Hiroyuki Yabuno

发明人： Yuji Takagi ,  Makoto Usui ,  Hiroyuki Yabuno

IPC分类号： H03M13/00

CPC分类号： G11B20/1833 ,  G11B20/1803 ,  G11B20/1866 ,  G11B2020/1287 ,  G11B2220/2562 ,  H03M13/29 ,  H03M13/2954

摘要： A recording medium for storing a data stream is comprised of first error correcting codes obtained by encoding first information, second error correcting codes obtained by encoding second information, and synchronization signals. In the data stream, the second error correcting codes and the synchronization signals alternatively interleave the first error correcting codes. The second error correcting codes have the same number of corrections as the first error correcting codes. A code length of the second error correcting codes is shorter than a code length of the first error correcting codes.