Information carrier, reading/writing device and reading device for
writing and/or reading information blocks
    1.
    发明授权
    Information carrier, reading/writing device and reading device for writing and/or reading information blocks 失效
    信息载体,读/写装置和用于写入和/或读取信息块的读取装置

    公开(公告)号:US06167012A

    公开(公告)日:2000-12-26

    申请号:US500303

    申请日:2000-02-08

    摘要: A disc-shaped information carrier has a track thereon which follows a helical or concentric path forming successive windings. For identifying each winding the information carrier also has a servo pattern thereon which includes position-information as well as synchronization elements. Such elements may be, for example, brief pulses in a continuous track wobble, and are distinguishable in adjacent windings based on a predetermined detectable parameter, such as alternating polarity or shifted relative phase positions. During recording by a read/write head a system control detects the synchronization elements and monitors whether a deviation has occurred signifying that the read/write head has wandered to an adjacent winding. In that event recording is interrupted. Thus, the least possible information in adjacent windings is overwritten in the case of disturbances resulting from shocks or defects of the information carrier. A read device is also described which interrupts reading if the winding identification provided by the synchronization elements signifies erroneous operation.

    摘要翻译: 盘状信息载体具有跟随形成连续绕组的螺旋或同心路径的轨道。 为了识别每个绕组,信息载体还具有包括位置信息以及同步元件的伺服模式。 这样的元件可以是例如连续轨道摆动中的短脉冲,并且可以基于预定的可检测参数(例如交替极性或偏移的相对位置)在相邻绕组中区分。 在通过读/写头进行记录期间,系统控制检测同步元件并监视是否发生偏差,表示读/写头已经流向相邻绕组。 在这种情况下,记录中断。 因此,在由于信息载体的冲击或缺陷引起的干扰的情况下,相邻绕组中的最不可能的信息被覆盖。 还描述了如果由同步元件提供的绕组识别意味着错误操作则中断读取的读取装置。

    Optical disc and apparatus for scanning the optical disc
    2.
    发明授权
    Optical disc and apparatus for scanning the optical disc 失效
    用于扫描光盘的光盘和设备

    公开(公告)号:US06580680B1

    公开(公告)日:2003-06-17

    申请号:US09366694

    申请日:1999-08-04

    IPC分类号: G11B700

    CPC分类号: G11B7/007 G11B7/00745

    摘要: The invention relates to an optical disc for recording data at a constant density, so called CLV (Constant Linear Velocity) or at zoned CLV. The disc has headers distributed along the disc on regular angular positions, a so called CAV (Constant Angular Velocity) pattern subdividing the track in track portions for recording an amount of data proportional to the radical position of the track portion concerned. Address information included in the headers is provided at the data density, which is CLV. The apparatus comprises header detection means for detecting the headers at the CAV locations, and for recovering position information from the headers at CLV density. Data sectors do not start at headers and are not fitted regularly between the headers, but start and stop at arbitrary positions which are calculated from the known amounts of data recordable in the track portion.

    摘要翻译: 本发明涉及用于以恒定密度记录数据的光盘,即所谓的CLV(恒定线速度)或分区CLV。 光盘具有沿着盘的规则角位置分配的头部,即所谓的CAV(恒角速度)图案,其将轨道部分中的轨道细分,用于记录与相关轨道部分的激进位置成比例的数据量。 标题中包含的地址信息是以CLV的数据密度提供的。 该装置包括头部检测装置,用于检测CAV位置处的头部,并用于从CLV密度的头部恢复位置信息。 数据扇区不以标题开始,并且不能在标题之间定期设置,而是可以从在轨道部分中可记录的已知数据量计算的任意位置开始和停止。

    Optical disc and apparatus for scanning the optical disc
    4.
    发明授权
    Optical disc and apparatus for scanning the optical disc 失效
    用于扫描光盘的光盘和设备

    公开(公告)号:US06700861B2

    公开(公告)日:2004-03-02

    申请号:US10349238

    申请日:2003-01-22

    IPC分类号: G11B700

    CPC分类号: G11B7/007 G11B7/00745

    摘要: The invention relates to an optical disc for recording data at a constant density, so called CLV (Constant Linear Velocity) or at zoned CLV. The disc has headers distributed along the disc on regular angular positions, a so called CAV (Constant Angular Velocity) pattern subdividing the track in track portions for recording an amount of data proportional to the radial position of the track portion concerned. Address information included in the headers is provided at the data density, which is CLV. The apparatus comprises header detection means for detecting the headers at the CAV locations, and for recovering position information from the headers at CLV density. Data sectors do not start at headers and are not fitted regularly between the headers, but start and stop at arbitrary positions which are calculated from the known amounts of data recordable in the track portions.

    摘要翻译: 本发明涉及用于以恒定密度记录数据的光盘,即所谓的CLV(恒定线速度)或分区CLV。 光盘具有沿着盘的规则角位置分配的头部,即所谓的CAV(恒定角速度)图案,其细分轨道部分中的轨迹,用于记录与相关轨道部分的径向位置成比例的数据量。 标题中包含的地址信息是以CLV的数据密度提供的。 该装置包括头部检测装置,用于检测CAV位置处的头部,并用于从CLV密度的头部恢复位置信息。 数据扇区不在标题处开始,并且不能在标题之间定期地拟合,而是可以从在轨道部分中可记录的已知数据量计算出的任意位置开始和停止。

    Optical record carrier
    5.
    发明授权
    Optical record carrier 失效
    光记录载体

    公开(公告)号:US06269071B1

    公开(公告)日:2001-07-31

    申请号:US09268256

    申请日:1999-03-15

    IPC分类号: G11B700

    摘要: An optical record carrier has parallel tracks for recording user information in a pattern of optically detectable marks, the tracks being provided with control information. The tracks are grouped in pairs of neighboring tracks. The control information in both tracks of a pair is identical and the control information in tracks of different pairs is different. The identity of the control information reduces the effect of crosstalk on neighboring tracks.

    摘要翻译: 光学记录载体具有用于以光学可检测标记的图案记录用户信息的平行轨道,轨道被提供有控制信息。 轨道被分成成对的相邻轨道。 一对的两个轨道中的控制信息是相同的,并且不同对的轨道中的控制信息是不同的。 控制信息的身份减少了串扰对相邻轨道的影响。

    Modifying the recording process to extend the life of a rewritable
information carrier
    6.
    发明授权
    Modifying the recording process to extend the life of a rewritable information carrier 失效
    修改记录过程以延长可重写信息载体的使用寿命

    公开(公告)号:US6115340A

    公开(公告)日:2000-09-05

    申请号:US800633

    申请日:1997-02-14

    摘要: The device according to the invention is suitable for recording a rewritable information carrier such a CD-E covered by a phase-change recording layer. As is known, such an information carrier has a limited useful life because the recorded, optically readable patterns start deviating ever more from the desired form when recorded recurrently. The invention is also based on the recognition that this degradation is accelerated if a certain part of the track on the information carrier constantly accommnodates the same patterns, for example, if information blocks are recorded starting from fixed initial positions and the information is represented by the patterns in a specific manner. The device comprises means for shifting the initial position along the track over a distance randomly selected within predefined boundaries and/or for adapting the manner of representation. This causes constantly different patterns to be recorded, even if the same information is to be recorded in a specific part of the track. The information carrier described according to the invention has an additional margin between the information blocks to allow of the shifting of the initial position.

    摘要翻译: 根据本发明的装置适用于记录由相变记录层覆盖的诸如CD-E的可重写信息载体。 众所周知,这种信息载体具有有限的使用寿命,因为记录的光可读模式在循序记录时开始偏离期望的形式。 本发明还基于这样的认识,即如果信息载体上的轨道的某一部分不断地匹配相同的模式,则这种劣化是加速的,例如,如果从固定的初始位置开始记录信息块,并且信息由 模式以特定的方式。 该装置包括用于沿着轨道在预定边界内随机选择的距离上移动初始位置和/或用于调整表示方式的装置。 即使在轨道的特定部分记录相同的信息,也会导致持续不断的记录模式。 根据本发明描述的信息载体在信息块之间具有允许初始位置移位的附加余量。

    Information carrier, reading/writing device and reading device for
writing and/or reading information blocks
    7.
    发明授权
    Information carrier, reading/writing device and reading device for writing and/or reading information blocks 失效
    信息载体,读/写装置和用于写入和/或读取信息块的读取装置

    公开(公告)号:US6091681A

    公开(公告)日:2000-07-18

    申请号:US922697

    申请日:1997-09-02

    摘要: A disc-shaped information carrier and a device for reading and/or writing information blocks in a track thereon which follows a helical or concentric path forming successive windings. For identifying each winding the information carrier also has a servo pattern thereon which includes position-information as well as synchronization elements. Such elements may be, for example, brief pulses in a continuous track wobble, and are distinguishable in adjacent windings based on a predetermined detectable parameter, such as alternating polarity or shifted relative phase positions. The device has a read/write head and a system control which during writing detects the synchronization elements and monitors whether a deviation has occurred signifying that the read/write head has wandered to an adjacent winding. In that event writing is interrupted. Thus, the least possible information in adjacent windings is overwritten in the case of disturbances resulting from shocks or defects of the information carrier. A read device is also described which interrupts reading if the winding identification provided by the synchronization elements signifies erroneous operation.

    摘要翻译: 一种盘形信息载体和用于在其上的轨道中读取和/或写入信息块的装置,其沿着形成连续绕组的螺旋或同心路径。 为了识别每个绕组,信息载体还具有包括位置信息以及同步元件的伺服模式。 这样的元件可以是例如连续轨道摆动中的短脉冲,并且可以基于预定的可检测参数(例如交替极性或偏移的相对位置)在相邻绕组中区分。 该设备具有读/写头和系统控制,其在写入期间检测同步元件并监视是否发生偏差,表示读/写头已经移动到相邻绕组。 在这种情况下,写作中断。 因此,在由于信息载体的冲击或缺陷引起的干扰的情况下,相邻绕组中的最不可能的信息被覆盖。 还描述了如果由同步元件提供的绕组识别意味着错误操作则中断读取的读取装置。

    Varying the process of rewriting to extend the life of a information carrier
    8.
    发明授权
    Varying the process of rewriting to extend the life of a information carrier 有权
    改变重写过程,延长信息载体的寿命

    公开(公告)号:US06469968B1

    公开(公告)日:2002-10-22

    申请号:US09619071

    申请日:2000-07-19

    IPC分类号: G11B509

    摘要: The life of a rewritable information carrier such a CD-E covered by a phase-change recording layer is extended by varying the manner of representing information of an information block, for subsequent recordings, in the same portion of the record carrier. The manner can be changed, for example, by shifting the initial position at which representing information is written along the track over a distance randomly selected within predefined boundaries; or by writing a varying amount of information representing information from the end of the block before the start of information from the beginning of the information block to rotate the information in the track; or by scrambling the information in a varying manner such as using different keys. The manner of representation can be changed, for example, for each subsequent recording on the same portion of the record carrier. This causes different patterns to be recorded in the same portion, even if the same information is recorded in that portion of the track.

    摘要翻译: 由相变记录层覆盖的诸如CD-E的可重写信息载体的寿命通过改变在记录载体的相同部分中用于后续记录的信息块的信息的表示的方式而被扩展。 例如,可以通过沿着轨道在预定边界内随机选择的距离上沿着轨道写入表示信息的初始位置来改变方式; 或者通过在从信息块的开头开始信息之前写入表示来自块结束的信息的变化量的信息,以使信息在轨道中旋转; 或通过以诸如使用不同的键的不同方式加扰信息。 例如,可以改变表示的方式,用于记录载体的相同部分上的每个后续记录。 这导致不同的图案被记录在相同的部分中,即使在轨道的该部分中记录了相同的信息。

    Modulation apparatus/method, demodulation apparatus/method and program presenting medium
    9.
    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:US07466246B2

    公开(公告)日:2008-12-16

    申请号:US11556874

    申请日:2006-11-06

    IPC分类号: H03M7/00

    摘要: 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: 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将数据串以基本 2比特的数据长度根据转换表具有3比特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.调制单元12使用的转换表包括替换码 用于将最小运行的连续出现次数限制为预定值,以及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
    10.
    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:US07158060B2

    公开(公告)日:2007-01-02

    申请号:US11335806

    申请日:2006-01-19

    IPC分类号: H03M7/40

    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。