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    INFORMATION RECORDING/REPRODUCING DEVICE USING OPTICAL DISK AND METHOD THEREFOR AND INFORMATION RECORDING SYSTEM AND INFORMATION RECORDING METHOD
    81.
    发明公开
    INFORMATION RECORDING/REPRODUCING DEVICE USING OPTICAL DISK AND METHOD THEREFOR AND INFORMATION RECORDING SYSTEM AND INFORMATION RECORDING METHOD 有权
    INFORMATIONSAUFZEICHNUNGS - / - WIEDERGABEGERÄTUND-EXFAHREN，DAS EINE OPTISCHE PLATTE VERWENDET

    公开(公告)号：EP1320096A1

    公开(公告)日：2003-06-18

    申请号：EP00949887.4

    申请日：2000-07-26

    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    Inventor： GUSHIMA, Toyoji ,  AKAGI, Toshiya ,  INOKUCHI, Chikashi

    IPC: G11B20/10 ,  G11B20/12 ,  G11B20/18

    CPC classification number: G11B20/18 ,  G11B20/1883 ,  G11B20/1889 ,  G11B27/3027 ,  G11B2220/20 ,  G11B2220/216 ,  G11B2220/2575

    Abstract: The sector synchronism of a timing generation section (114) for generating data recording/reproducing timing is corrected at the address-mark detection timing of an address-mark detection section (111). Moreover, even if only one piece of address information having no error is not reproduced in the sector concerned, when at least one piece of address information having no error is reproduced in any of a predetermined number of sectors preceding the subject sector and at least one address mark is detected in the subject sector, the data recording/reproducing is permitted, and thus the data is recorded/reproduced at a high speed and a high reliability even if an error rate of a physical address is deteriorated.

    Abstract translation: 在地址标记检测部分（111）的地址标记检测定时处校正用于产生数据记录/再现定时的定时产生部分（114）的扇区同步。 此外，即使在有关的扇区中没有再现没有错误的一条地址信息，当在主题扇区之前的预定数量的扇区中的任何一个中再现至少一个没有错误的地址信息时，至少一个 在主体扇区中检测到地址标记，允许数据记录/再现，因此即使物理地址的错误率恶化，也能高速且高可靠性地记录/再现数据。

    Method and apparatus to detect and manage servo sectors with defects on servo pattern area in hard disk drives
    82.
    发明公开
    Method and apparatus to detect and manage servo sectors with defects on servo pattern area in hard disk drives 有权
    用于检测和盘的伺服图案区域与缺陷处理伺服扇区的方法和设备

    公开(公告)号：EP1189222A3

    公开(公告)日：2003-06-11

    申请号：EP01122138.9

    申请日：2001-09-14

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Chu, Sang-Hoon ,  Shim, Jun-Seok ,  Yu, Seong-Hwan ,  Choi, Soo-Il

    IPC: G11B20/18 ,  G11B5/596 ,  G11B27/36

    CPC classification number: G11B20/1883 ,  G11B5/59655 ,  G11B20/18 ,  G11B27/3027 ,  G11B27/36 ,  G11B2020/183 ,  G11B2220/20

    Abstract: An apparatus, method and computer program product for a hard disk drive (10) defect detection system. In one embodiment, a method of detecting defects on the surface of a disk (12) having a plurality of tracks (t n ) is recited. The method comprises reading, one or more times, the servo bits for a plurality of sectors (i) and determining a burst measure for at least one sector, where the burst measure is a function of the burst signals for the sector. This method further comprises determining a reference value, where the reference value is a function of the burst signals of the plurality of sectors, and comparing the burst measure of at least one sector to the reference value to identify a potential defect. In one embodiment, a sector is mapped as defective where its burst measure differs from the reference value by at least 5 percent.

    Abstract translation: 用于硬盘驱动器的装置，方法和计算机程序产品（10）的缺陷检测系统。在一个实施方案中，具有轨道（TN）的多个盘（12）的表面上检测缺陷的方法列举。 该方法包括读取，一次或多次，所述伺服位为扇区（i）多个与确定性采矿突发度量的至少一个扇区，其中所述突发的措施是为界的脉冲串信号的功能。 该方法还包括确定开采的基准值，其中，所述参考值是扇区的多个突发信号的一个功能，并且至少一个扇区的突发测量与基准值来识别一个潜在的缺陷。 在一个其中其突发测量从基准值由至少实施方式5的不同百分比的扇区被映射为有缺陷的。

    Optical disk device
    86.
    发明公开
    Optical disk device 有权
    光盘设备

    公开(公告)号：EP1130580A3

    公开(公告)日：2003-04-02

    申请号：EP01301476.6

    申请日：2001-02-20

    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA

    Inventor： Yokoyama, Eiji, c/o Mitsubishi Denki ,  Ryu, Tomoaki, c/o Mitsubishi Denki

    IPC: G11B7/09

    CPC classification number: G11B7/0948 ,  G11B7/0953 ,  G11B7/0956 ,  G11B20/18

    Abstract: A disk physical strain correction signal generation means (11) outputs a signal obtained by allowing a phase compensation signal (S8) to pass a LPF as a disk physical strain correction signal (S11) during a normal period. During a defect detection period, it outputs the output signal of the LPF sampled at the time of the defect detection start as the disk physical strain correction signal (S11). The disturbance pulse detection means (13a) outputs a disturbance pulse correction signal (S13) based upon a disturbance pulse (S13a) obtained by subtracting the disk physical strain correction signal (S11) from the phase compensation signal (S8). The addition means (12) adds the disk physical strain correction signal (S11) and the disturbance pulse correction signal (S13) to output a defect compensation signal (S12). This defect compensation signal (S12) is applied as an actuator control signal (S20) during the detect detection period. Thus, it is possible to provide an optical disk device which can carry out a stable driving control for a reproducing operation, etc. without losing the continuity of control before and after the defect detection even when the defect detection period is long.

    Abstract translation: 盘正常应变校正信号发生装置（11）在正常周期期间输出通过允许相位补偿信号（S8）通过LPF而获得的信号作为盘物理应变校正信号（S11）。 在缺陷检测期间，输出在缺陷检测开始时采样的LPF的输出信号作为盘片物理应变校正信号（S11）。 干扰脉冲检测装置（13a）根据通过从相位补偿信号（S8）中减去光盘物理应变校正信号（S11）而获得的干扰脉冲（S13a）输出干扰脉冲校正信号（S13）。 加法装置（12）将盘片物理应变校正信号（S11）和干扰脉冲校正信号（S13）相加以输出缺陷补偿信号（S12）。 该缺陷补偿信号（S12）在检测检测时段期间被用作致动器控制信号（S20）。 因此，即使在缺陷检测时间长的情况下，也可以提供一种光盘装置，其能够对再现操作等进行稳定的驱动控制，而不会在缺陷检测之前和之后失去控制的连续性。

    METHOD AND APPARATUS OF CONVERTING A SERIES OF DATA WORDS INTO A MODULATED SIGNAL
    87.
    发明公开
    METHOD AND APPARATUS OF CONVERTING A SERIES OF DATA WORDS INTO A MODULATED SIGNAL 审中-公开
    用于转换的数据字的方法和设备遵循一个调制信号

    公开(公告)号：EP1295400A1

    公开(公告)日：2003-03-26

    申请号：EP01926202.1

    申请日：2001-04-19

    Applicant: LG ELECTRONICS INC.

    Inventor： IMMINK, Kees, A., Schouhamer ,  Ahn, Seong Keun ,  Suh, Sang Woon ,  Kim, Jin Yong

    IPC: H03M7/46

    CPC classification number: G11B20/10203 ,  G11B20/1426 ,  G11B20/18 ,  G11B20/1803 ,  H03M5/145 ,  H03M7/46

    Abstract: The present invention relates to method and apparatus of converting a series of data words into modulated signals. This method divides a data word, which a sync signal is to be added in front or rear of when it is written in a recording medium, into two or more word segments, generates for each word segment a number of intermediate sequences by combining mutually different digital words with that word segment, scrambles these intermediate sequences to form alternative sequences, translates each alternative sequence into a (d,k) constrained sequence, checks how many undesired sub-sequences are contained in each (d,k) constrained sequence, and selects one (d,k) constrained sequence for recording on an optical or magneto-optical recording medium among the (d,k) constrained sequences not having the undesired sub-sequence. Applying this method to a modulating device, DSV control can be conducted by much simpler hardware.

    SECURE DIGITAL VIDEO DISK AND PLAYER
    88.
    发明公开
    SECURE DIGITAL VIDEO DISK AND PLAYER 审中-公开
    受保护的数字影碟机和板

    公开(公告)号：EP1290689A2

    公开(公告)日：2003-03-12

    申请号：EP01941833.4

    申请日：2001-06-01

    Applicant: Macrovision Corporation

    Inventor： DOWNING, Daniel, D.

    IPC: G11B20/10

    CPC classification number: G11B20/12 ,  G11B20/10 ,  G11B20/18

    Abstract: A method for recording data on an optical medium is disclosed. In one embodiment, the method includes receiving main data from a data source, determining a plurality of data frame values in response to the main data, inverting at least one selected bit in at least one of the data frame values to generate a plurality of encoded data frames, scrambling the encoded data frames by a feedback shift register to generate scrambled data frames, generating ECC values in response to the scrambled data frames, adding the ECC values to the scrambled data frames to generate an ECC block, rearranging the ECC block to generate a plurality of recording frames, encoding the recording frames by an eight-to-sixteen modulation (ESM) encoder to generate code words, adding sync values to the code words to generate a plurality of physical sectors, and recording the physical sectors on the optical medium. A complementary method for reading and decoding data from an optical medium is also disclosed. These complementary encoding and decoding schemes provide a method for creating and reading proprietary format DVDs which may not be read or copied by conventional DVD players. These encoding and decoding schemes result from relatively minor modifications to existing DVD standards, allowing many standard system components to be used and thereby making the encoding/decoding system relatively easy and inexpensive to implement.

    A METHOD OF REACQUIRING CLOCK SYNCHRONIZATION ON A NON-TRACKING HELICAL SCAN TAPE DEVICE
    89.
    发明授权
    A METHOD OF REACQUIRING CLOCK SYNCHRONIZATION ON A NON-TRACKING HELICAL SCAN TAPE DEVICE 有权
    方法恢复从上的时钟同步轨道地段倾斜磁道磁带驱动器

    公开(公告)号：EP1131823B1

    公开(公告)日：2003-02-05

    申请号：EP99961684.0

    申请日：1999-11-16

    Applicant: EXABYTE CORPORATION

    Inventor： BLATCHLEY, Michael, A. ,  MCAULIFFE, Richard, H.

    IPC: G11B20/18 ,  G11B20/14

    CPC classification number: G11B20/1403 ,  G11B20/18

    Abstract: A method and apparatus for reacquiring synchronization of a clock synchronization signal (58) with a data signal (60) in a non-tracking storage device is presented. A packet error detector (46) detects errors in data packets (55) from a data signal (60) and generates a packet error status (56) for each reconstructed packet (55). A read quality detector (42) monitors the packet error status (56) and determines whether the quality of the data signal (60) is of an acceptable versus unacceptable read quality condition. The read quality condition is based on the number of consecutive packets in which an error is detected. Upon detection of an unacceptable read quality condition, the read channel is disabled and the clock synchronize signal (58) is relocked to a known reference frequency (54). The read channel is then reenabled and the clock synchronization signal (58) is relocked to the data signal (60).

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