Data recording method and device, data recording medium, data reproduction method and device
    95.
    发明申请
    Data recording method and device, data recording medium, data reproduction method and device 失效
    数据记录方法和装置,数据记录介质,数据再现方法和装置

    公开(公告)号:US20050152255A1

    公开(公告)日:2005-07-14

    申请号:US10509887

    申请日:2004-01-29

    摘要: Main data and a sub code supplied from input terminals 1a and 1b are processed by encoders 2a and 2b, respectively. The encoded main data and sub code are supplied to an EFM modulating portion 4 through a multiplexer 3. The EFM modulating portion 4 is composed of an 8-14 converting portion 5a and a connection bit selecting portion 5b. For the EFM modulating portion 4, a DSV normal controlling portion 7a and a DSV special controlling portion 7b are disposed. In only a predetermined region designated on an optical disc, the DSV special control is performed. The DSV special control causes the absolute value of the DSV to increase so that data will be prevented from being normally reproduced. The normal control causes the absolute value of the DSV to converge at 0. When data is reproduced from the optical disc, if the reproduction state of the predetermined region is abnormal, it is determined that the disc is an original disc. An encryption key can be recorded in the predetermined region.

    摘要翻译: 主数据和从输入端子1a和1b提供的子代码分别由编码器2a和2b处理。 经编码的主数据和子码通过多路复用器3提供给EFM调制部分4。 EFM调制部分4由8-14转换部分5a和连接位选择部分5b组成。 对于EFM调制部分4,设置DSV正常控制部分7a和DSV专用控制部分7b。 在仅在光盘上指定的预定区域中,执行DSV特殊控制。 DSV特殊控制使DSV的绝对值增加,从而防止数据正常再现。 通常的控制使得DSV的绝对值收敛到0.当从光盘再现数据时,如果预定区域的再现状态异常,则确定该盘是原始盘。 可以在预定区域中记录加密密钥。

    Data recording apparatus and method, data playback apparatus and method, and optical disc
    97.
    发明授权
    Data recording apparatus and method, data playback apparatus and method, and optical disc 失效
    数据记录装置和方法,数据重放装置和方法以及光盘

    公开(公告)号:US06438084B2

    公开(公告)日:2002-08-20

    申请号:US09816943

    申请日:2001-03-23

    IPC分类号: G11B700

    摘要: When writing data to a normal-density CD-R, data linking blocks including two run-out blocks are appended to each packet of the data, and the data is interleaved with a maximum delay of 108 frames. On the other hand, when writing data to a double-density CD-R, data linking blocks including three run-out blocks are appended to each packet of the data, and the data is interleaved with a maximum delay of 189 frames. There are provided a data recorder, data recording method, data player, data playback method, and an optical disc with which data can properly be written to or read from an optical disc having an increased recording density, and which can support an optical disc having the current format.

    摘要翻译: 当将数据写入正常密度CD-R时,包括两个输出块的数据链接块被附加到数据的每个数据包上,数据以108帧的最大延迟进行交织。 另一方面,当将数据写入双密度CD-R时,包括三个输出块的数据链接块被附加到数据的每个分组,并且以189帧的最大延迟交织数据。 提供了数据记录器,数据记录方法,数据播放器,数据重放方法和数据可以适当地从具有增加的记录密度的光盘写入或读取的光盘,并且其可以支持具有 当前格式。

    Recording apparatus and method, reproducing apparatus and method, and memory medium
    98.
    发明授权
    Recording apparatus and method, reproducing apparatus and method, and memory medium 失效
    记录装置和方法,再现装置和方法以及存储介质

    公开(公告)号:US07448086B2

    公开(公告)日:2008-11-04

    申请号:US10169695

    申请日:2001-11-02

    IPC分类号: H04L9/14

    摘要: Data areas AR1 and AR2, lead-in areas LIN1 and LIN2, and lead-out areas LOUT1 and LOUT2 are provided on a disc. For example, in case of encrypting and recording data into the data area AR2, copyright management information R2 and key information K2 are recorded into the lead-out area LOUT2. Only information in a Q channel of a subcode is recorded in the lead-out area and this area is filled with dummy data. A position of the lead-out is obtained from TOC information. The fact that a light spot has entered the lead-out area can be judged from the information in the Q channel. The copyright management information and key information are recorded by using the lead-out area. The lead-out area is not rewritten or accessed by an ordinary CD player, so that the copyright management information and the key information can be safely held.

    摘要翻译: 数据区AR 1和AR 2,导入区LIN 1和LIN 2以及引出区LOUT 1和LOUT 2设置在盘上。 例如,在将数据加密并记录到数据区域AR 2的情况下,版权管理信息R 2和密钥信息K 2被记录在引出区域LOUT 2中。 只有子码的Q信道中的信息被记录在导出区域中,并且该区域被填充有虚拟数据。 从TOC信息获得出口的位置。 可以根据Q通道中的信息来判断光点已经进入导出区域的事实。 使用导出区域记录版权管理信息和密钥信息。 导出区域不会由普通CD播放机重写或访问,从而可以安全地保存版权管理信息和密钥信息。