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1. 发明授权

US5920579A Digital signal reproduction apparatus 失效
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.

2. 发明授权

US6014766A Digital signal reproduction apparatus 有权
标题翻译：数字信号再生装置
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。

3. 发明授权

US6154806A Method for recording digital signals on multiple-layered disks 有权
标题翻译：在多层磁盘上记录数字信号的方法
公开(公告)号：US6154806A
公开(公告)日：2000-11-28
申请号：US339816
申请日：1999-06-25
申请人： Hiroshi Hirayama , Osamu Kawamae , Masayuki Hirabayashi , Yutaka Nagai , Toshifumi Takeuchi
发明人： Hiroshi Hirayama , Osamu Kawamae , Masayuki Hirabayashi , Yutaka Nagai , Toshifumi Takeuchi
IPC分类号： G11B20/10 , G11B7/00 , G11B7/0037 , G11B7/004 , G11B7/0045 , G11B7/005 , G11B7/007 , G11B7/30 , G11B19/12 , G11B20/12 , G11B27/00 , G11B27/034 , G11B27/10 , G11B27/30 , G11B27/32 , B11B7/24
CPC分类号： G11B20/1217 , G11B19/12 , G11B27/034 , G11B27/105 , G11B27/3027 , G11B27/329 , G11B7/0037 , G11B7/0045 , G11B7/005 , G11B7/00745 , G11B20/1252 , G11B2007/0013 , G11B2020/1229 , G11B2020/1232 , G11B2020/1267 , G11B2020/1295 , G11B2220/213 , G11B2220/237 , G11B2220/2545
摘要： A method of recording digital signals on a disk having at least a first recording surface and a second recording surface. The digital signals are in the form of a data frame including a lead-in block and n data blocks. The lead-in block has a same format as the n data blocks. The method includes the steps of assigning n block addresses to respective ones of the n data blocks, assigning, to each of the n data blocks, information identifying an area on the disk in which a respective one of the n data blocks is to be recorded, recording m data block (0
摘要翻译：一种在具有至少第一记录表面和第二记录表面的盘上记录数字信号的方法。数字信号是包括导入块和n个数据块的数据帧的形式。导入块具有与n个数据块相同的格式。该方法包括以下步骤：将n个块地址分配给n个数据块中的相应的n个数据块，向n个数据块中的每个数据块分配用于识别在其中要记录n个数据块中的相应一个的盘上的区域的信息在盘的第一记录表面上记录n个数据块的m个数据块（0

4. 发明授权

US06233649B1 Digital signal reproducing method 有权
标题翻译：数字信号再现方法
公开(公告)号：US06233649B1
公开(公告)日：2001-05-15
申请号：US09342045
申请日：1999-06-28
申请人： Hiroshi Hirayama , Osamu Kawamae , Masayuki Hirabayashi , Yutaka Nagai , Toshifumi Takeuchi
发明人： Hiroshi Hirayama , Osamu Kawamae , Masayuki Hirabayashi , Yutaka Nagai , Toshifumi Takeuchi
IPC分类号： G11B502
CPC分类号： G11B20/1217 , G11B7/0037 , G11B7/0045 , G11B7/005 , G11B7/00745 , G11B19/12 , G11B20/1252 , G11B27/034 , G11B27/105 , G11B27/3027 , G11B27/329 , G11B2007/0013 , G11B2020/1229 , G11B2020/1232 , G11B2020/1267 , G11B2020/1295 , G11B2220/213 , G11B2220/237 , G11B2220/2545
摘要： A method of reproducing digital signals recorded on a disk having first and second recording surfaces. The digital signals are in the form of a data frame including a lead-in block and n data blocks. The lead-in block has a same format as the n data blocks. n block addresses are assigned to the n data blocks. Information identifying an area on the disk in which the n data blocks is recorded is assigned to the n data blocks. m data blocks (0
摘要翻译：一种再现记录在具有第一和第二记录表面的盘上的数字信号的方法。数字信号是包括导入块和n个数据块的数据帧的形式。导入块具有与n个数据块相同的格式。 n个块地址被分配给n个数据块。识别磁盘上记录有n个数据块的区域的信息被分配给n个数据块。 m个数据块（0

5. 发明授权

US06332174B1 Digital signal reproducing apparatus 有权
标题翻译：数字信号再现装置
公开(公告)号：US06332174B1
公开(公告)日：2001-12-18
申请号：US09342175
申请日：1999-06-29
申请人： Hiroshi Hirayama , Osamu Kawamae , Masayuki Hirabayashi , Yutaka Nagai , Toshifumi Takeuchi
发明人： Hiroshi Hirayama , Osamu Kawamae , Masayuki Hirabayashi , Yutaka Nagai , Toshifumi Takeuchi
IPC分类号： B11B724
CPC分类号： G11B20/1217 , G11B7/0037 , G11B7/0045 , G11B7/005 , G11B7/00745 , G11B19/12 , G11B20/1252 , G11B27/034 , G11B27/105 , G11B27/3027 , G11B27/329 , G11B2007/0013 , G11B2020/1229 , G11B2020/1232 , G11B2020/1267 , G11B2020/1295 , G11B2220/213 , G11B2220/237 , G11B2220/2545
摘要： An apparatus for reproducing digital signals recorded on a disk having first and second recording surfaces. The digital signals are in the form of a data frame including a lead-in block and n data blocks. The lead-in block has a same format as the n data blocks. n block addresses are assigned to the n data blocks. Information identifying an area on the disk in which the n data blocks is recorded is assigned to the n data blocks. m data blocks (0
摘要翻译：一种用于再现记录在具有第一和第二记录表面的盘上的数字信号的装置。数字信号是包括导入块和n个数据块的数据帧的形式。导入块具有与n个数据块相同的格式。 n个块地址被分配给n个数据块。识别磁盘上记录有n个数据块的区域的信息被分配给n个数据块。 m个数据块（0

6. 发明授权

US06347353B1 Information medium having digital signals recorded thereon 有权
标题翻译：其上记录有数字信号的信息介质
公开(公告)号：US06347353B1
公开(公告)日：2002-02-12
申请号：US09343200
申请日：1999-06-30
申请人： Hiroshi Hirayama , Osamu Kawamae , Masayuki Hirabayashi , Yutaka Nagai , Toshifumi Takeuchi
发明人： Hiroshi Hirayama , Osamu Kawamae , Masayuki Hirabayashi , Yutaka Nagai , Toshifumi Takeuchi
IPC分类号： B11B724
CPC分类号： G11B20/1217 , G11B7/0037 , G11B7/0045 , G11B7/005 , G11B7/00745 , G11B19/12 , G11B20/1252 , G11B27/034 , G11B27/105 , G11B27/3027 , G11B27/329 , G11B2007/0013 , G11B2020/1229 , G11B2020/1232 , G11B2020/1267 , G11B2020/1295 , G11B2220/213 , G11B2220/237 , G11B2220/2545
摘要： An information medium having digital signals recorded therein includes a disk having first and second recording surfaces. The digital signals are in the form of a data frame including a lead-in block and n data blocks. The lead-in block has a same format as the n data blocks. n block addresses are assigned to the n data blocks. Information identifying an area on the disk in which the n data blocks is recorded is assigned to the n data blocks. m data blocks (0
摘要翻译：其中记录有数字信号的信息介质包括具有第一和第二记录表面的盘。数字信号是包括导入块和n个数据块的数据帧的形式。导入块具有与n个数据块相同的格式。 n个块地址被分配给n个数据块。识别磁盘上记录有n个数据块的区域的信息被分配给n个数据块。 m个数据块（0

7. 发明授权

US06324618B1 Optical disk reproducing apparatus 有权
标题翻译：光盘重放装置
公开(公告)号：US06324618B1
公开(公告)日：2001-11-27
申请号：US09563433
申请日：2000-05-03
申请人： Hiroshi Hirayama , Osamu Kawamae , Masayuki Hirabayashi , Yutaka Nagai , Toshifumi Takeuchi
发明人： Hiroshi Hirayama , Osamu Kawamae , Masayuki Hirabayashi , Yutaka Nagai , Toshifumi Takeuchi
IPC分类号： B11B724
CPC分类号： G11B20/1217 , G11B7/0037 , G11B7/0045 , G11B7/005 , G11B7/00745 , G11B19/12 , G11B20/1252 , G11B27/034 , G11B27/105 , G11B27/3027 , G11B27/329 , G11B2007/0013 , G11B2020/1229 , G11B2020/1232 , G11B2020/1267 , G11B2020/1295 , G11B2220/213 , G11B2220/237 , G11B2220/2545
摘要： An optical disk reproducing apparatus for reproducing digital signals in the form of a data frame including a lead-in block and data blocks from an optical disk including at least first and second recording surfaces each being readable from a same side of the optical disk. The data blocks include block addresses and data, and are recorded on the first and second recording surfaces. The lead-in block is recorded at a head of the data frame and includes disk information relating to a number of data blocks recorded on the first and second recording surfaces. The apparatus includes an optical pickup, a focus control circuit, a pickup movement control circuit, a disk information detection circuit which detects disk information included in a reproduced lead-in block, a block address detection circuit which detects block addresses included in reproduced data blocks, and an access/reproduction control circuit which controls the focus control circuit and the pickup movement control circuit to access the first and second recording surfaces and reproduce data blocks recorded thereon. The access/reproduction control circuit controls the focus control circuit to perform focus changing of the optical pickup to access the first and second recording surfaces in accordance with block addresses of data blocks to be reproduced and the detected disk information.
摘要翻译：一种用于再现数字信号的光盘再现装置，该数据信号包括从光盘至少包括第一和第二记录表面的数据块和数据块，每个记录表面可从光盘的同一侧读取。数据块包括块地址和数据，并被记录在第一和第二记录表面上。导入块被记录在数据帧的头部，并且包括与记录在第一和第二记录表面上的多个数据块有关的盘信息。该装置包括光拾取器，聚焦控制电路，拾取移动控制电路，检测包含在再现的导入块中的盘信息的盘信息检测电路，块地址检测电路，其检测再现数据块中包括的块地址以及访问/再现控制电路，其控制聚焦控制电路和拾取器移动控制电路以访问第一和第二记录表面并再现其上记录的数据块。访问/再现控制电路控制聚焦控制电路，以根据要再现的数据块的块地址和检测到的盘信息来执行光学拾取器的聚焦改变以访问第一和第二记录表面。

8. 发明授权

US5966721A Digital signal recording method and disk reproducing apparatus 失效
标题翻译：数字信号记录方法和盘重放装置
公开(公告)号：US5966721A
公开(公告)日：1999-10-12
申请号：US669245
申请日：1996-06-24
申请人： Hiroshi Hirayama , Osamu Kawamae , Masayuki Hirabayashi , Yutaka Nagai , Toshifumi Takeuchi
发明人： Hiroshi Hirayama , Osamu Kawamae , Masayuki Hirabayashi , Yutaka Nagai , Toshifumi Takeuchi
IPC分类号： G11B20/10 , G11B7/00 , G11B7/0037 , G11B7/004 , G11B7/0045 , G11B7/005 , G11B7/007 , G11B7/30 , G11B19/12 , G11B20/12 , G11B27/00 , G11B27/034 , G11B27/10 , G11B27/30 , G11B27/32 , G11B7/24
CPC分类号： G11B20/1217 , G11B19/12 , G11B27/034 , G11B27/105 , G11B27/3027 , G11B27/329 , G11B7/0037 , G11B7/0045 , G11B7/005 , G11B7/00745 , G11B20/1252 , G11B2007/0013 , G11B2020/1229 , G11B2020/1232 , G11B2020/1267 , G11B2020/1295 , G11B2220/213 , G11B2220/237 , G11B2220/2545
摘要： A method of recording digital signals on a disk which has at least a first recording surface and a second recording surface both being readable from a same side of the disk. The digital signals are in the form of a data frame which includes at least n data blocks (n is a natural number). The method includes the steps of assigning block addresses to a series of the data blocks included in the data frame in order, respectively; recording, at the head of the data frame, a lead-in block including information indicating a number of recording surfaces, an end data block address of the first recording surface, and an end data block address of the data frame; recording first to m-th data blocks (m is a natural number, 0
摘要翻译：一种在具有至少第一记录表面和第二记录表面的盘上记录数字信号的方法，其可从盘的同一侧读取。数字信号是包括至少n个数据块（n是自然数）的数据帧的形式。该方法包括以下步骤：分别向数据帧中包括的一系列数据块分配块地址; 在数据帧的头部记录包括指示记录表面数量的信息的导入块，第一记录表面的结束数据块地址和数据帧的结束数据块地址; 在盘的第一径向方向上首先记录包括盘的第一记录表面上的数据帧的各个块地址的第m个数据块（m是自然数，0

9. 发明授权

US5442612A Digital signal reproduction devices, integrated circuits for use therewith, and digital signal reproduction methods 失效
标题翻译：数字信号再现装置，与其一起使用的集成电路和数字信号再现方法
公开(公告)号：US5442612A
公开(公告)日：1995-08-15
申请号：US144527
申请日：1993-11-02
申请人： Toshifumi Takeuchi , Shinichi Obata , Izumi Kimura , Osamu Kawamae , Hiroshi Tadokoro , Yutaka Nagai
发明人： Toshifumi Takeuchi , Shinichi Obata , Izumi Kimura , Osamu Kawamae , Hiroshi Tadokoro , Yutaka Nagai
IPC分类号： G11B20/10 , G11B20/14 , G11B20/18 , G11B27/36 , H03L7/107 , G11B5/09 , G11B7/00
CPC分类号： G11B20/18 , G11B20/10 , G11B20/1403 , G11B27/36 , G11B20/1866 , G11B20/1876
摘要： A digital signal reproduction device including a data strobe circuit high in margin against noise and rapid in recovery from dropout of data and a digital signal reproduction method performed in such device. The digital signal reproduction device includes a pair of data strobe circuits and a switching circuit for selecting one of the outputs of the pair of data strobe circuits, and a circuit for generating from the received signal a signal to control the switching circuit. The data strobe circuits ensure high reliability of the received signal against noise and a short time from dropout of the received signal to acquisition of a reproduction clock. The data strobe circuit is selectable which is suitable for the reproduction state of the reproduced signal.
摘要翻译：一种数字信号再现装置，包括数据选通电路，其噪声偏高，数据丢失恢复快，并且在该装置中执行的数字信号再现方法。数字信号再现装置包括一对数据选通电路和用于选择一对数据选通电路的输出之一的开关电路，以及用于从接收信号产生控制开关电路的信号的电路。数据选通电路确保接收到的信号对噪声的高可靠性以及从接收信号的丢失到获取再现时钟的短时间。数据选通电路是可选择的，其适合于再现信号的再现状态。

10. 发明授权

US6076135A Information medium having a plurality of recording surfaces 失效
标题翻译：具有多个记录面的信息介质
公开(公告)号：US6076135A
公开(公告)日：2000-06-13
申请号：US84931
申请日：1998-05-28
申请人： Hiroshi Hirayama , Osamu Kawamae , Masayuki Hirabayashi , Yutaka Nagai , Toshifumi Takeuchi
发明人： Hiroshi Hirayama , Osamu Kawamae , Masayuki Hirabayashi , Yutaka Nagai , Toshifumi Takeuchi
IPC分类号： G11B20/10 , G11B7/00 , G11B7/0037 , G11B7/004 , G11B7/0045 , G11B7/005 , G11B7/007 , G11B7/30 , G11B19/12 , G11B20/12 , G11B27/00 , G11B27/034 , G11B27/10 , G11B27/30 , G11B27/32 , G11B7/24
CPC分类号： G11B20/1217 , G11B19/12 , G11B27/034 , G11B27/105 , G11B27/3027 , G11B27/329 , G11B7/0037 , G11B7/0045 , G11B7/005 , G11B7/00745 , G11B20/1252 , G11B2007/0013 , G11B2020/1229 , G11B2020/1232 , G11B2020/1267 , G11B2020/1295 , G11B2220/213 , G11B2220/237 , G11B2220/2545
摘要： An information medium having recorded thereon digital signals includes at least a first recording surface and a second recording surface. The digital signals are in the form of a data frame which includes at least a lead-in block and n data blocks (n is a natural number), with m data blocks of the n data blocks (m is a natural number, 0
摘要翻译：其上记录有数字信号的信息介质至少包括第一记录表面和第二记录表面。数字信号是数据帧的形式，其至少包括导入块和n个数据块（n是自然数），其中n个数据块的m个数据块（m是自然数，0 < n

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