Method for transmitting data, apparatus for recording data, medium for recording data, and apparatus for reproducing data
    5.
    发明申请
    Method for transmitting data, apparatus for recording data, medium for recording data, and apparatus for reproducing data 失效
    用于发送数据的方法,用于记录数据的装置,用于记录数据的介质,以及用于再现数据的装置

    公开(公告)号:US20030023861A1

    公开(公告)日:2003-01-30

    申请号:US10211499

    申请日:2002-08-02

    申请人: SONY CORPORATION

    IPC分类号: H04L009/00

    摘要: A data transmitting method, a data recording apparatus, a data record medium and a data reproducing apparatus are provided to disallow the encryption to be easily decoded and keep the secrecy of key information higher. The data transmitting apparatus includes an error correction coding process block. In the block, an input converting circuit operates to perform a logic operation with respect to the information data from an interface circuit 12 according to the key data. The converted information data is sent to an encoder 15 for generating parity data. This parity data is mixed with information data before conversion in a mixing circuit. The error correction coding block operates to send the resulting data to a modulating circuit 17 for modulating the data. The modulated data is recorded on a disk record medium.

    摘要翻译: 提供数据发送方法,数据记录装置,数据记录介质和数据再现装置,以使得不易加密被解码,并使密钥信息的保密性更高。 数据发送装置包括纠错编码处理块。 在该方框中,输入转换电路根据密钥数据对来自接口电路12的信息数据进行逻辑运算。 转换的信息数据被发送到用于产生奇偶校验数据的编码器15。 该混合电路中的该奇偶校验数据与转换前的信息数据混合。 纠错编码块用于将结果数据发送到用于调制数据的调制电路17。 调制数据被记录在磁盘记录介质上。