Optical information reproducing apparatus and method
    2.
    发明申请
    Optical information reproducing apparatus and method 审中-公开
    光信息再生装置及方法

    公开(公告)号:US20040151091A1

    公开(公告)日:2004-08-05

    申请号:US10712304

    申请日:2003-11-14

    Abstract: An apparatus for and a method of reproducing information from an optical information storage medium (OISM) in which inherent information and control data are recorded according to a bi-phase modulation method and other data are recorded according to a general modulation method. Sum signals of signals reflected from the OISM are determined. A ROM-PIC demodulator demodulates optical information storage medium-related information (OISMRI) from the sum signal. A data demodulator demodulates reproduction-related user data from the sum signal, a wobble PIC demodulator demodulates recordable OISMRI recorded as pit wobbles from a differential signal of the reflected signals, and a wobble PID demodulator demodulates physical identification data that is recorded as pit wobbles from the differential signal. A determination is made whether the OISM is a read-only OISM or a recordable OISM based on whether the optical information storage medium comprises a plurality of different modulation codes.

    Abstract translation: 根据一般调制方法记录根据双相调制方法和其他数据记录固有信息和控制数据的光信息存储介质(OISM)的信息再现装置和方法。 确定从OISM反射的信号的和信号。 ROM-PIC解调器从和信号解调光信息存储介质相关信息(OISMRI)。 数据解调器从和信号解调再现相关的用户数据,摆动的PIC解调器从反射信号的差分信号解调记录为凹坑摆动的可记录的OISMRI,并且摆动PID解调器解调作为凹坑摆动记录的物理识别数据 差分信号。 基于光信息存储介质是否包括多个不同的调制码,确定OISM是只读OISM还是可记录OISM。

    Apparatus and method for demodulating signal
    5.
    发明申请
    Apparatus and method for demodulating signal 失效
    用于解调信号的装置和方法

    公开(公告)号:US20040028150A1

    公开(公告)日:2004-02-12

    申请号:US10446641

    申请日:2003-05-28

    CPC classification number: H03M5/145 G11B20/1488

    Abstract: An apparatus for and a method of signal demodulation which reduces a number of calculations required for demodulating an M-bit codeword which has been modulated from an N-bit codeword. Probability data for each bit of the M-bit codeword is tested to determine if the probability data indicates a high reliability of being either a one or a zero. Bits having the high reliability are compared with corresponding bits in each of a plurality of reference codewords and the codewords having bits which match the corresponding bits having the high reliability are used along with the probability data to calculate a probability of each bit of the N-bit codeword. As a number of bits having the high reliability increases, a number of calculations required to calculate the probability of each bit of the N-bit codeword decreases.

    Abstract translation: 一种用于信号解调的装置和方法,其减少了从N比特码字调制的M位码字的解调所需的计算数量。 测试M比特码字的每个比特的概率数据,以确定概率数据是否表示是一个或一个零的高可靠性。 将具有高可靠性的比特与多个参考码字中的每一个中的相应比特进行比较,并且与概率数据一起使用具有与具有高可靠性的相应比特匹配的比特的码字,以计算N比特的每个比特的概率, 位码字。 随着具有高可靠性的多个比特数增加,计算N比特码字的每个比特的概率所需的计算量减少。

    Apparatus for recording data on and/or reproducing data from optical disc
    7.
    发明申请
    Apparatus for recording data on and/or reproducing data from optical disc 有权
    用于在光盘上记录数据和/或从光盘再现数据的装置

    公开(公告)号:US20040240368A1

    公开(公告)日:2004-12-02

    申请号:US10886555

    申请日:2004-07-09

    Abstract: An optical disc on which data is recorded and/or from which the data is reproduced, includes a recording area where the data is recorded in at least one physical cluster, a defective area, where a defect that prevents a recording and/or reproduction of data is present, provided in the recording area, and a recording end area where information indicating an end of recording is recorded before the defective area. A method of recording data on and/or reproducing the data from a high density optical disc having a defective area, includes recording the data in a predetermined recording area having the defective area, and recording end data indicating an end of the recording before the defective area.

    Abstract translation: 其上记录有数据和/或从中再现数据的光盘包括其中数据被记录在至少一个物理簇中的记录区域,缺陷区域,其中防止记录和/或再现的缺陷 在记录区域内提供数据,在记录区域之前记录表示记录结束的信息的记录结束区域。 一种在具有缺陷区域的高密度光盘上记录数据和/或再现数据的方法包括将数据记录在具有缺陷区域的预定记录区域中,以及记录表示在缺陷区域之前的记录结束的结束数据 区。

    Recording medium for storing linking type information, method of processing defective area using the same, and recording and/or reproducing apparatus therefor
    8.
    发明申请
    Recording medium for storing linking type information, method of processing defective area using the same, and recording and/or reproducing apparatus therefor 有权
    用于存储链接类型信息的记录介质,使用其的处理缺陷区域的方法,以及用于其的记录和/或再现装置

    公开(公告)号:US20040223431A1

    公开(公告)日:2004-11-11

    申请号:US10870139

    申请日:2004-06-18

    Abstract: A recording medium storing linking type information, a method of processing a defective area in the medium and recording and/or reproducing apparatus therefor. The recording medium stores information indicating that linking is applied immediately after the defective area, distinguishing a linking type which occurs in a general incremental recording mode from a linking type which occurs after the defective area. Defective areas are detected and registered in a predetermined area (recording management data (RMD) area) before user data is recorded or while user data is being recorded in the recording medium having a plurality of continuous basic recording units, such as a digital versatile disc-rewritable (DVD-RW) in which recording and reproducing can be done repeatedly. Linking is not only applied in an incremental recording mode or in a restricted overwrite recording mode, but linking is also applied to an area immediately after the defective area which is registered in the defect list, increasing reliability of the user data. In addition, a test signal such as data, a groove wobble pattern, or a recording mark which has a test pattern, which functions as linking data is recorded in advance in a block immediately after the defective area detected during certification. If the test signal is detected after the defective area, the new user data is recorded immediately after a predetermined number of error correction code (ECC) blocks following the defective area without using linking, reducing the time for recording linking data, which is advantageous to real-time recording.

    Abstract translation: 存储连接类型信息的记录介质,处理介质中的缺陷区域的方法以及用于其的记录和/或再现装置。 记录介质存储指示在缺陷区域之后立即应用链接的信息,区分以普通增量记录模式发生的链接类型与在缺陷区域之后发生的链接类型。 在用户数据被记录之前或者当用户数据被记录在具有多个连续基本记录单元的记录介质中时,在预定区域(记录管理数据(RMD)区域)中检测并登记有缺陷区域,例如数字通用盘 可再生(DVD-RW),其中可以重复进行记录和再现。 链接不仅应用于增量记录模式或限制重写记录模式,而且链接也被应用于紧跟在缺陷列表中的缺陷区域之后的区域,增加了用户数据的可靠性。 此外,在紧接在认证期间检测到的缺陷区域之后的块中,预先记录具有用作链接数据的测试图案的诸如数据,凹槽摆动图案或记录标记的测试信号。 如果在缺陷区域之后检测到测试信号,则在不使用链接的情况下紧跟在缺陷区之后的预定数量的纠错码(ECC)块之后立即记录新的用户数据,从而减少用于记录链接数据的时间,这有利于 实时录音。

    Method of automatically optimizing writing on optical recording medium and optical recording/reproducing apparatus for performing the same
    9.
    发明申请
    Method of automatically optimizing writing on optical recording medium and optical recording/reproducing apparatus for performing the same 审中-公开
    自动优化光记录介质上的写入和执行该记录介质的光记录/再现装置的方法

    公开(公告)号:US20040160874A1

    公开(公告)日:2004-08-19

    申请号:US10684837

    申请日:2003-10-15

    CPC classification number: G11B7/1267 G11B7/0062 G11B7/00736

    Abstract: A method of optimizing recording conditions of an optical recording medium and an apparatus using the method. The method includes recording a test write pattern in a plurality of tracks of the optical recording medium; and checking a quality of a radio frequency signal reproduced from one of the plurality of tracks in which the predetermined write pattern is recorded and which is effected by writing in adjacent tracks to determine the optimized recording conditions.

    Abstract translation: 一种优化光记录介质的记录条件的方法和使用该方法的装置。 该方法包括在光学记录介质的多个轨道中记录测试写入模式; 并且检查从其中记录了预定写入模式的多个磁道之一再现的射频信号的质量,并通过在相邻磁道中写入来实现,以确定优化的记录条件。

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