Modulation apparatus/method, demodulation apparatus/method and program presenting medium
    1.
    发明申请
    Modulation apparatus/method, demodulation apparatus/method and program presenting medium 有权
    调制装置/方法,解调装置/方法和程序呈现介质

    公开(公告)号:US20060132342A1

    公开(公告)日:2006-06-22

    申请号:US11335806

    申请日:2006-01-19

    IPC分类号: H03M3/00

    摘要: How to record and play back data at a high line density. A DSV control bit determining/inserting unit 11 inserts DSV control bits for execution of DSV control into an input data string and outputs the data string including the DSV control bits to a modulation unit 12. The modulation unit 12 converts the data string with a basic data length of 2 bits into variable length code with a basic code length of 3 bits in accordance with a conversion table and outputs the code resulting from the conversion to a NRZI encoding unit 13. The conversion table used by the modulation unit 12 includes substitution codes for limiting the number of consecutive appearances of a minimum run to a predetermined value and substitution codes for keeping a run length limit. In addition, the conversion table enforces a conversion rule, according to which the remainder of division of the “1” count of an element in a data string by 2 having a value of 0 or 1 shall always be equal to the remainder of division of the “1” count of an element in the code resulting from conversion of the data string by 2.

    摘要翻译: 如何以高线密度记录和播放数据。 DSV控制位确定/插入单元11将用于执行DSV控制的DSV控制位插入到输入数据串中,并将包括DSV控制位的数据串输出到调制单元12。 调制单元12根据转换表将具有2位的基本数据长度的数据串转换为具有3位的基本码长度的可变长度码,并将从转换得到的码输出到NRZI编码单元13。 由调制单元12使用的转换表包括用于将最小运行的连续出现次数限制为预定值的替代代码和用于保持游程长度限制的替代代码。 另外,转换表强制执行转换规则,根据该转换规则,数据串中的元素的“1”计数的余数除以2,值为0或1,其总和必须等于 由数据字符串转换得到的代码中的元素的“1”计数为2。

    Modulation apparatus/method, demodulation apparatus/method and program presenting medium
    2.
    发明授权
    Modulation apparatus/method, demodulation apparatus/method and program presenting medium 有权
    调制装置/方法,解调装置/方法和程序呈现介质

    公开(公告)号:US07098819B2

    公开(公告)日:2006-08-29

    申请号:US10704277

    申请日:2003-11-07

    IPC分类号: H03M7/00

    摘要: A DSV control bit determining/inserting unit inserts DSV control bits for execution of DSV control into an input data string and outputs the data string including the DSV control bits to a modulation unit. This modulation unit converts the data string with a basic data length of 2 bits into variable length code with a basic code length of 3 bits in accordance with a conversion table and outputs the code resulting from the conversion to a NRZI encoding unit. The conversion table used by the modulation unit includes substitution codes for limiting the number of consecutive appearances of a minimum run to a predetermined value and substitution codes for keeping a run length limit. In addition, the conversion table enforces a conversion rule, according to which the remaineder of division of the “1” count of an element in a data string by 2 having a value of 0 or 1 shall always be equal to the remainder of division of the “1” count of an element in the code resulting from conversion of the data string by 2.

    摘要翻译: DSV控制位确定/插入单元将用于执行DSV控制的DSV控制位插入到输入数据串中,并将包括DSV控制位的数据串输出到调制单元。 该调制单元根据转换表将具有2位的基本数据长度的数据串转换为具有3位的基本码长度的可变长度码,并将从转换得到的代码输出到NRZI编码单元。 由调制单元使用的转换表包括用于将最小运行的连续出现次数限制为预定值的替换代码和用于保持游程长度限制的替代代码。 另外,转换表执行转换规则,根据该转换规则,数据字符串中的元素“1”计数的剩余值除以2,值为0或1,总是等于 由数据字符串转换得到的代码中的元素的“1”计数为2。

    Method of storing a disc-ID on a record carrier, device and record carrier
    3.
    发明申请
    Method of storing a disc-ID on a record carrier, device and record carrier 审中-公开
    将盘ID存储在记录载体,设备和记录载体上的方法

    公开(公告)号:US20050041539A1

    公开(公告)日:2005-02-24

    申请号:US10838994

    申请日:2004-10-18

    摘要: The invention relates to a method of storing a disc-ID on a record carrier (1) comprising tracks (4) in which information can be stored. This disc-ID comprises a predetermined fixed number of disc-ID bits (10). The disc-ID bits (10) are stored on the record carrier (1) in a scattered way. For example, the disc-ID bits (10) can be stored in groups of one disc-ID bit (1) and at positions reserved for storing non-data bits. The invention further relates to a device for reading the record carrier (1) with the scattered disc-ID, and to a record carrier (1).

    摘要翻译: 本发明涉及一种将盘ID存储在包括其中可以存储信息的轨道(4)的记录载体(1)上的方法。 该盘ID包括预定的固定数量的盘ID位(10)。 盘ID位(10)以分散的方式存储在记录载体(1)上。 例如,可以将盘ID位(10)以一个盘-ID比特(1)和保留用于存储非数据比特的位置存储。 本发明还涉及一种用于读取具有散射盘ID的记录载体(1)以及记录载体(1)的装置。