公开(公告)号：US06807365B1

公开(公告)日：2004-10-19

申请号：US09577129

申请日：2000-05-24

Applicant: Yoshito Aoki

Inventor： Yoshito Aoki

IPC: H04N5917

CPC classification number: G11B20/00086 ,  G06T1/0021 ,  G11B20/00007 ,  G11B20/0021 ,  G11B20/00492 ,  G11B20/00884 ,  G11B20/10 ,  G11B2020/1843

Abstract: First modification detection data is generated from the (compressed) video data. The video data is combined with the first modification detection data. The combined data is recorded on a recording medium. The read combined data is separated into the compressed video data and the first modification detection data. Second modification detection data is generated according to the separated compressed data. The separated first data modification detection data is compared with the second data modification detection data to detect data modification. Outputting expanded video data is controlled according to the comparing result. The recorded data may be copied on a removable disc. A data reproducing apparatus having the second modification detection data generation circuit and the comparing circuit reproduces the removable disc. The reproduced video data may be further processed by a watermark processing circuit to embed watermark data in the video data which are recorded on another removable disc. The compressed video data may be transmitted through a network with encrypting. Encrypting key data is exchanged between the data transmitting side and the receiving side for decrypting. Encrypted video data may be recorded or transmitted and the encrypting key is stored for decrypting or transmitted for decrypting.

Abstract translation: 从（压缩）视频数据生成第一修改检测数据。 视频数据与第一修改检测数据组合。 组合的数据被记录在记录介质上。 读取的组合数据被分成压缩视频数据和第一修改检测数据。 根据分离的压缩数据生成第二修改检测数据。 将分离的第一数据修改检测数据与第二数据修改检测数据进行比较以检测数据修改。 根据比较结果控制扩展视频数据的输出。 记录的数据可以复制在可移动盘上。 具有第二修改检测数据生成电路和比较电路的数据再现装置再现可移除盘。 再现的视频数据可以由水印处理电路进一步处理，以将水印数据嵌入到记录在另一移动盘上的视频数据中。 压缩视频数据可以通过加密的网络传输。 在数据发送侧和接收侧之间交换加密密钥数据以进行解密。 可以记录或发送加密的视频数据，并且存储加密密钥以进行解密或发送用于解密。

公开(公告)号：US06553532B1

公开(公告)日：2003-04-22

申请号：US09401852

申请日：1999-09-22

Applicant: Yoshito Aoki

Inventor： Yoshito Aoki

IPC: G11C2900

CPC classification number: G11B20/1833 ,  G06F11/1417 ,  G11B19/04 ,  G11B20/10 ,  G11B20/1217

Abstract: Information is recorded on and reproduced from a disk ECC-block by ECC-block. Every ECC block is composed of plural sectors. A recording command is generated which contains information of a recording position on the disk. The information of the recording position is stored into a nonvolatile memory. Data is recorded on the disk in response to the recording command. In cases where power supply is turned on after interruption of power supply terminates, a specified ECC block is detected from the information stored in the nonvolatile memory. The specified ECC block is adversely affected by the interruption of power supply during the recording of data on the disk. One of a reproducing command and a verify command is generated for at least one sector of the specified ECC block. Data is reproduced from the specified ECC block on the disk in response to the one of the reproducing command and the verify command. A decision is made as to whether or not the reproduction of data from the specified ECC block succeeds or fails. In cases where it is decided that the reproduction of data from the specified ECC block fails, data is recorded on a whole of the specified ECC block to convert the specified ECC block into a normal ECC block.

Abstract translation: 通过ECC块将信息记录在磁盘ECC块上并由其再现。 每个ECC块由多个扇区组成。 产生包含磁盘上的记录位置的信息的记录命令。 记录位置的信息被存储到非易失性存储器中。 响应于记录命令，数据被记录在磁盘上。 在电源中断后电源接通的情况下，从存储在非易失性存储器中的信息中检测出指定的ECC块。 在磁盘上记录数据时，指定的ECC块受到电源中断的不利影响。 为指定的ECC块的至少一个扇区生成再现命令和验证命令之一。 响应于再现命令和验证命令之一，数据从盘上的指定ECC块再现。 决定来自指定ECC块的数据的再现是否成功或失败。 在确定来自指定的ECC块的数据的再现失败的情况下，将数据记录在整个指定的ECC块上，以将指定的ECC块转换成正常的ECC块。

公开(公告)号：US06438096B1

公开(公告)日：2002-08-20

申请号：US09570615

申请日：2000-05-12

Applicant: Yoshinari Takemura ,  Shigeru Furumiya ,  Takashi Ishida ,  Yoshito Aoki ,  Shunji Ohara ,  Yuichi Kamioka ,  Toyoji Gushima

Inventor： Yoshinari Takemura ,  Shigeru Furumiya ,  Takashi Ishida ,  Yoshito Aoki ,  Shunji Ohara ,  Yuichi Kamioka ,  Toyoji Gushima

IPC: G11B724

CPC classification number: G11B7/0901 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0938 ,  G11B20/1252 ,  G11B27/19 ,  G11B27/24 ,  G11B27/3027 ,  G11B2020/1232 ,  G11B2020/1239 ,  G11B2020/1267 ,  G11B2020/1274 ,  G11B2020/1287 ,  G11B2220/20 ,  G11B2220/216 ,  G11B2220/2537

Abstract: Address groups are composed of two of address blocks 16, 17, 18, and 19, where the address blocks 16, 17, 18, and 19 are disposed in a sector address region 5 and include identifiable information of address numbers 13 and overlapping sequential numbers 14. The address groups are disposed so that each group is alternately shifted from a track center 2 toward the inner periphery side or the outer periphery side, by a width substantially equal to half the track pitch, along the radius direction.

Abstract translation: 地址组由地址块16,17,18和19中的两个组成，其中地址块16,17,18和19被布置在扇区地址区5中，并且包括地址号13的可识别信息和重叠的连续数 地址组被设置成使得每个组沿着半径方向从轨道中心2向内周侧或外周侧交替地移动宽度大致等于轨道间距的一半的宽度。

公开(公告)号：US06172960B2

公开(公告)日：2001-01-09

申请号：US09171044

申请日：1999-01-04

Applicant: Yoshinari Takemura ,  Shigeru Furumiya ,  Takashi Ishida ,  Yoshito Aoki ,  Shunji Ohara ,  Yuichi Kamioka ,  Toyoji Gushima

Inventor： Yoshinari Takemura ,  Shigeru Furumiya ,  Takashi Ishida ,  Yoshito Aoki ,  Shunji Ohara ,  Yuichi Kamioka ,  Toyoji Gushima

IPC: G11B724

CPC classification number: G11B7/0901 ,  G11B7/00718 ,  G11B7/00745 ,  G11B7/0938 ,  G11B20/1252 ,  G11B27/19 ,  G11B27/24 ,  G11B27/3027 ,  G11B2020/1232 ,  G11B2020/1239 ,  G11B2020/1267 ,  G11B2020/1274 ,  G11B2020/1287 ,  G11B2220/20 ,  G11B2220/216 ,  G11B2220/2537

Abstract: Address groups are composed of two of address blocks 16, 17, 18, and 19, where the address blocks 16, 17, 18, and 19 are disposed in a sector address region 5 and include identifiable information of address numbers 13 and overlapping sequential numbers 14. The address groups are disposed so that each group is alternately shifted from a track center 2 toward the inner periphery side or the outer periphery side, by a width substantially equal to half the track pitch, along the radius direction.

Abstract translation: 地址组由地址块16,17,18和19中的两个组成，其中地址块16,17,18和19被布置在扇区地址区5中，并且包括地址号13的可识别信息和重叠的连续数 地址组被设置成使得每个组沿着半径方向从轨道中心2向内周侧或外周侧交替地移动宽度大致等于轨道间距的一半的宽度。

公开(公告)号：US5729525A

公开(公告)日：1998-03-17

申请号：US666945

申请日：1996-06-20

Applicant: Takashi Ishida ,  Mamoru Shoji ,  Shunji Ohara ,  Shinichi Konishi ,  Yoshito Aoki ,  Yoshiyuki Miyabata ,  Yuji Hisakado ,  Hironori Deguchi

Inventor： Takashi Ishida ,  Mamoru Shoji ,  Shunji Ohara ,  Shinichi Konishi ,  Yoshito Aoki ,  Yoshiyuki Miyabata ,  Yuji Hisakado ,  Hironori Deguchi

IPC: G11B7/0037 ,  G11B7/005 ,  G11B7/007 ,  G11B7/24038 ,  G11B20/12 ,  G11B27/32 ,  G11B7/00

CPC classification number: G11B7/24038 ,  G11B27/329 ,  G11B7/0037 ,  G11B7/00736 ,  G11B7/00745 ,  G11B20/1217 ,  G11B2020/1228 ,  G11B2020/1288 ,  G11B2220/215 ,  G11B2220/237 ,  G11B7/005

Abstract: A two-layer optical disk has a first layer of a disk shaped recording medium for storing data and a second layer of a disk shaped recording medium placed over the first layer for storing data. Data blocks A, B, C are stored in the first layer in said order. Similarly, data blocks X, Y, Z are stored in the second layer in said order. When reading the data from the two-layer optical disk, the data blocks are read in the order of A, X, B, Y, C, Z.