Method and device for recording information in units
    2.
    发明授权
    Method and device for recording information in units 失效
    以单位记录信息的方法和装置

    公开(公告)号:US07038991B1

    公开(公告)日:2006-05-02

    申请号:US09546971

    申请日:2000-04-11

    IPC分类号: G11B7/00

    摘要: A method and device for recording information in units on a partly recorded writable record carrier, e.g. an optical disc. The information is recorded in a track represented by series of marks of different runlengths between a minimum runlength and a maximum runlength and synchronizing patterns of marks, which patterns do not occur in the series of marks and comprise at least one long mark of at least the maximum runlength. At least one information unit is encoded into a modulated signal comprising signal elements corresponding to said marks. The track is scanned up to a link position before a selected one of said addressable locations, and the modulated signal is recorded from the link position. The modulated signal is provided at the begin and/or at the end with a link signal element corresponding to a mark of at most the minimum runlength.

    摘要翻译: 在部分记录的可写入记录载体上以单元记录信息的方法和装置,例如, 光盘。 信息被记录在由最小游程长度和最大游程长度之间的不同游程长度的一系列标记表示的轨道中,并且同步标记模式,该模式不在该系列标记中出现,并且包括至少一个长标记 最大游程长度。 至少一个信息单元被编码成包括对应于所述标记的信号元素的调制信号。 在所选择的所述可寻址位置之前,将轨道扫描到链接位置,并且从链接位置记录调制信号。 调制信号在开始和/或结束处以对应于至多最小游程长度的标记的链接信号元素提供。

    Record carrier and apparatus for scanning the record carrier
    3.
    发明授权
    Record carrier and apparatus for scanning the record carrier 有权
    用于扫描记录载体的记录载体和装置

    公开(公告)号:US06765861B2

    公开(公告)日:2004-07-20

    申请号:US10350939

    申请日:2003-01-24

    IPC分类号: G11B724

    摘要: A record carrier (1) is described comprising a servo track (4) indicating an information track (9) intended for recording information blocks represented by marks having lengths expressed in channel bits, which servo track (4) has a periodic variation of a physical parameter. The periodic variation is modulated for encoding record carrier information, such as addresses. The modulation is a bi-phase modulation in which a data bit of the record carrier information is encoded by a first predetermined number of variations of a first phase followed by the same number of variations of a second phase inverse to the first phase. A recording and/or playback device has a demodulator for retrieving data bits of the record carrier information from a first predetermined number of variations of a first phase followed by the same number of variations of a second phase inverse to the first phase.

    摘要翻译: 描述了一种记录载体(1),其包括指示用于记录由以通道位表示的长度的标记表示的信息块的信息轨道(9)的伺服轨道(4),该伺服轨道(4)具有物理 参数。 周期性变化被调制用于编码诸如地址的记录载体信息。 调制是双相调制,其中记录载体信息的数据位由第一相位的第一预定数量的变化编码,之后是与第一相位相反的第二相位的相同数量的变化。 记录和/或播放装置具有解调器,用于从第一相位的第一预定数量的变化跟随与第一相位相反的第二相位的相同数量的变化值来检索记录载体信息的数据位。

    Record carrier and apparatus for scanning the record carrier
    7.
    发明授权
    Record carrier and apparatus for scanning the record carrier 有权
    用于扫描记录载体的记录载体和装置

    公开(公告)号:US06538982B1

    公开(公告)日:2003-03-25

    申请号:US09490384

    申请日:2000-01-24

    IPC分类号: G11B724

    摘要: A record carrier is described comprising a servo track indicating an information track intended for recording information blocks represented by marks having lengths expressed in channel bits, which servo track has a periodic variation of a physical parameter. The periodic variation is modulated for encoding record carrier information, such as addresses. The modulation is a bi-phase modulation in which a data bit of the record carrier information is encoded by a first predetermined number of variations of a first phase followed by the same number of variations of a second phase inverse to the first phase. A recording and/or playback device has a demodulator for retrieving data bits of the record carrier information from a first predetermined number of variations of a first phase followed by the same number of variations of a second phase inverse to the first phase.

    摘要翻译: 描述了一种记录载体,其包括指示用于记录由以通道位表示的长度的标记表示的信息块的信息轨道的伺服轨道,该伺服轨道具有物理参数的周期性变化。 周期性变化被调制用于编码诸如地址的记录载体信息。 调制是双相调制,其中记录载体信息的数据位由第一相位的第一预定数量的变化编码,之后是与第一相位相反的第二相位的相同数量的变化。 记录和/或播放装置具有解调器,用于从第一相位的第一预定数量的变化跟随与第一相位相反的第二相位的相同数量的变化值来检索记录载体信息的数据位。

    Optical record carrier
    8.
    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。

    Phase-locked loop, phase comparator for use in the phase-locked loop,
and reproducing device including the phase-locked loop
    9.
    发明授权
    Phase-locked loop, phase comparator for use in the phase-locked loop, and reproducing device including the phase-locked loop 失效
    用于锁相环的锁相环,相位比较器和包括锁相环的再现装置

    公开(公告)号:US5619171A

    公开(公告)日:1997-04-08

    申请号:US534092

    申请日:1995-09-26

    CPC分类号: H03L7/089 H04L7/033

    摘要: A phase-locked loop includes an input terminal (1) for receiving a binary signal, a phase comparator (3) having a first input (2) coupled to the input terminal (1), having a second input (4), and having an output (5) coupled to an input (9) of a control-signal-controlled oscillator (10) via a control-signal generator unit (7). An output (11) of the oscillator is coupled to the second input of the phase comparator. The phase comparator derives a first pulse (P.sub.1) and a second pulse (P.sub.2) in response to a signal transition from a first value to a second value in the binary signal applied to the first input and an oscillation signal applied to the second input, the first pulse having a pulse width which is a measure of the phase difference between the binary signal and the oscillation signal, and the second pulse having a pulse width proportional to 1/2.f.sub.o, where f.sub.o is the frequency of the oscillation signal. The control-signal generator unit (7) derives a control signal from the first pulse and the second pulse and applies the control signal to the oscillator, and the control-signal generator unit derives such a control signal from the first pulse and the second pulse that the phase difference is controlled substantially toward zero.

    摘要翻译: 锁相环包括用于接收二进制信号的输入端(1),具有耦合到输入端(1)的第一输入(2)的相位比较器(3),具有第二输入端(4),并具有 经由控制信号发生器单元(7)耦合到控制信号控制振荡器(10)的输入(9)的输出(5)。 振荡器的输出(11)耦合到相位比较器的第二输入端。 相位比较器响应于从施加到第一输入的二进制信号中的第一值到第二值的信号转换和施加到第二输入的振荡信号,导出第一脉冲(P1)和第二脉冲(P2) 所述第一脉冲具有脉冲宽度,所述脉冲宽度是所述二进制信号和所述振荡信号之间的相位差的量度,并且所述第二脉冲具有与+ E成比例的脉冲宽度,f 1/2 + EE .fo,其中,fo是 振荡信号的频率。 控制信号发生器单元(7)从第一脉冲和第二脉冲导出控制信号并将控制信号施加到振荡器,并且控制信号发生器单元从第一脉冲和第二脉冲导出这样的控制信号 相位差基本上被控制到零。