公开(公告)号：US20020051414A1

公开(公告)日：2002-05-02

申请号：US09982982

申请日：2001-10-22

Applicant: Pioneer Corporation and Tohoku Pioneer Corporation

Inventor： Hiroki Kuribayashi

IPC: G11B007/0045 ,  G11B007/24

CPC classification number: G11B7/24085 ,  G11B7/00454 ,  G11B7/00455 ,  G11B7/00718 ,  G11B7/00745 ,  G11B2007/0013

Abstract: A stable rewritable multi-layer information recording medium capable of suppressing noises and a recording apparatus for the same. The multi-layer information recording medium is capable of recording/rewriting information, provided with a plurality of recording layers sequentially layered through spacer layers. Each recording layer is made of a material that changes reflectance upon irradiation of a beam of light, each recording layer is provided with alternately and adjacently aligned information rewritable regions and pre-pit regions where predetermined information has been written. Average reflectance of the rewritable regions is different from average reflectance of the pre-pits regions. In this construction, the pre-pit regions have recording marks that lessen a difference between the average reflectance of the rewritable regions and the average reflectance of the pre-pit regions. The recording apparatus for recording/rewriting information by irradiating a beam of light to a multi-layer information recording medium capable of recording/rewriting information, includes a circuit for generating a recording mark signal for recording a recording mark of a predetermined length in each of the pre-pit regions while the beam of light is irradiated on the pre-pit region.

Abstract translation: 能够抑制噪声的稳定的可重写多层信息记录介质及其记录装置。 多层信息记录介质能够记录/重写信息，设置有通过间隔层顺序分层的多个记录层。 每个记录层由在光束照射时改变反射率的材料制成，每个记录层设置有交替地和相邻对准的信息可重写区域和预定信息已被写入的预制凹坑区域。 可重写区域的平均反射率不同于预制凹坑区域的平均反射率。 在这种结构中，预制凹坑区域具有减小可重写区域的平均反射率与预制凹坑区域的平均反射率之间的差异的记录标记。 用于通过向能够记录/重写信息的多层信息记录介质照射光束来记录/重写信息的记录装置包括用于产生用于记录每个记录/重写信息中预定长度的记录标记的记录标记信号的电路 预制凹坑区域，同时将光束照射在预制凹坑区域上。

公开(公告)号：US20040233805A1

公开(公告)日：2004-11-25

申请号：US10793666

申请日：2004-03-05

Applicant: Pioneer Corporation

Inventor： Masayoshi Yoshida ,  Hiroki Kuribayashi ,  Kaoru Yamamoto

IPC: G11B007/00

CPC classification number: G11B7/0948

Abstract: A defect on a DVD-RAM is detected by using a track error signal TE and an RF signal before the decoding thereof, which are used for the position control of an optical pickup. Because the defect detection is performed by using the track error signal TE and the RF signal before the decoding thereof, even if the verification and reproduction of information are not performed, it is possible to make or update a defect list and increase the accuracy of the defect detection. It is possible to extract only information about the defect which is the obstacle of the information recording realistically and collect it on the defect list.

Abstract translation: 在用于光学拾取器的位置控制的解码之前，通过使用轨道误差信号TE和RF信号来检测DVD-RAM上的缺陷。 由于通过在解码之前使用轨道误差信号TE和RF信号来执行缺陷检测，即使不执行信息的验证和再现，也可以制造或更新缺陷列表并提高其精度 缺陷检测。 有可能仅提取作为信息记录的障碍的缺陷的信息，并将其收集到缺陷列表上。

公开(公告)号：US20030223330A1

公开(公告)日：2003-12-04

申请号：US10440376

申请日：2003-05-19

Applicant: Pioneer Corporation

Inventor： Hiroki Kuribayashi ,  Takuma Yanagisawa

IPC: G11B007/00

CPC classification number: G11B7/005

Abstract: It is an object to provide a recorded information reproducing apparatus that allows to eliminate crosstalk from an adjacent track correctly, even from a recording medium having both a recorded area in which information data are recorded and an unrecorded area. In order to detect a crosstalk component from an adjacent track based on a correlation between a main read signal read from a main track and a sub read signal read from an adjacent track, the relative phase between the sub read signal and the main read signal is shifted.

Abstract translation: 本发明的目的是提供一种记录信息再现装置，即使从具有记录信息数据的记录区域和未记录区域的记录介质也可以正确地消除来自相邻磁道的串扰。 为了基于从主轨道读取的主读取信号与从相邻轨道读取的副读取信号之间的相关性来检测来自相邻轨道的串扰分量，子读取信号和主读取信号之间的相对相位是 转移

公开(公告)号：US20020054681A1

公开(公告)日：2002-05-09

申请号：US09985837

申请日：2001-11-06

Applicant: Pioneer Corporation

Inventor： Hiroki Kuribayashi ,  Shogo Miyanabe

IPC: H04N007/167

CPC classification number: G11B20/10009 ,  H04N5/85 ,  H04N7/1675 ,  H04N21/231 ,  H04N21/2347 ,  H04N2005/91364

Abstract: The output bits that are shifted in order in the direction from stage R0 to R13 of a 14-stage shift register select Maximum-length sequences, which are generated by a specific primitive polynomial that correspond to a scramble number, from a selection table based on disk position data. Moreover, three selection bits are output according to the connection relationship with the selected Maximum-length sequences, and after the exclusive OR has been taken in order by the EXOR circuit, they are fed back to the initial stage R0. The recording data are scrambled by using the Maximum-length sequences that are generated in this way, making it possible to perform scrambling with little correlation and high reliability regardless of the recording position.

Abstract translation: 在从14级移位寄存器的阶段R0到R13的方向上按顺序移位的输出位选择基于对应于扰码的特定基本多项式生成的最大长度序列，该选择表基于 磁盘位置数据。 此外，根据与所选择的最大长度序列的连接关系输出三个选择位，并且在由EXOR电路依次执行异或之后，它们被反馈到初始级R0。 通过使用以这种方式生成的最大长度序列对记录数据进行加扰，使得可以执行无关于记录位置的相关性和高可靠性的加扰。

公开(公告)号：US20030048728A1

公开(公告)日：2003-03-13

申请号：US10238617

申请日：2002-09-11

Applicant: PIONEER CORPORATION

Inventor： Hiroki Kuribayashi ,  Takuma yanagisawa

IPC: G11B007/00

CPC classification number: G11B27/24 ,  G11B7/00745 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2545

Abstract: The object of the present invention is to provide a data recording method and optic recording medium that is capable of reproducing address data accurately by reducing the correlation of address data between adjacent tracks, reducing the effect of cross-talk between adjacent tracks on the recording clock and by making it possible to apply a cross-talk canceller to the wobble signal. The data-recording method of recording data while controlling the correlation between a first data string and a second data string that are contained in recording data, and is provided with a selecting process of selecting inversion/no inversion of first data string such that the correlation between first data string and second data string is reduced; and a recording process of recording first data string according to selected inversion/no inversion polarity, and recording control code that indicates whether inversion/no inversion was selected for first data string.

Abstract translation: 本发明的目的是提供一种数据记录方法和光学记录介质，其能够通过减少相邻轨道之间的地址数据的相关性来精确地再现地址数据，从而减少记录时钟上的相邻轨道之间的串扰的影响 并且可以将串扰消除器应用于摆动信号。 记录数据的数据记录方法，同时控制记录数据中包含的第一数据串和第二数据串之间的相关性，并且提供选择处理，其选择第一数据串的反转/不反转，使得相关性 在第一数据串和第二数据串之间减少; 以及根据选择的反转/无反转极性记录第一数据串的记录处理，以及指示是否针对第一数据串选择了反转/不反转的记录控制代码。

公开(公告)号：US20030031103A1

公开(公告)日：2003-02-13

申请号：US10216624

申请日：2002-08-12

Applicant: PIONEER CORPORATION

Inventor： Hiroki Kuribayashi ,  Takuma Yanagisawa

IPC: G11B007/005

CPC classification number: G11B7/0956 ,  G11B7/005 ,  G11B7/0903 ,  G11B7/094 ,  G11B7/0943

Abstract: An information reproduction apparatus for reading information of an optical recording medium is provided with: a first detecting device which supplies a difference between respective output signals optically obtained by a pair of detectors for reading information of a first track; a second detecting device and a third detecting device which supply a difference between respective output signals optically obtained by a pair of detectors for reading information of a second track and a third track respectively, the third and second tracks being placed on opposite sides of the first track; a crosstalk extracting device which extracts crosstalk caused by the second and third tracks, which is included in a detected signal supplied from the first detecting device; and a tracking control device which executes tracking control for the first detecting device based on a balance between the crosstalks caused by the second and third tracks.

Abstract translation: 一种用于读取光学记录介质的信息的信息再现设备设置有：第一检测装置，其提供用于读取第一轨道的信息的一对检测器光学获得的各个输出信号之间的差; 第二检测装置和第三检测装置，其分别提供由用于读取第二轨道和第三轨道的信息的一对检测器光学获得的各个输出信号之间的差异，所述第三和第二轨道被放置在第一和第二轨道的相对侧上 跟踪; 提取包括在从第一检测装置提供的检测信号中的由第二和第三磁道引起的串扰的串扰提取装置; 以及跟踪控制装置，其基于由第二和第三轨道引起的串扰之间的平衡来执行针对第一检测装置的跟踪控制。

公开(公告)号：US20020141307A1

公开(公告)日：2002-10-03

申请号：US10097325

申请日：2002-03-15

Applicant: PIONEER CORPORATION

Inventor： Hiroki Kuribayashi ,  Takuma Yanagisawa

IPC: G11B007/00

CPC classification number: G11B27/24 ,  G11B7/0053 ,  G11B7/131 ,  G11B20/10009 ,  G11B20/22 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2545 ,  G11B2220/2562

Abstract: There are disclosed an information reproduction apparatus, signal processing apparatus, and information reproduction method which can remove a crosstalk to a wobble signal, particularly a crosstalk attributed to an RF signal. The information reproduction apparatus for reading information of an optical recording medium includes a detector for outputting a difference between individual output signals optically obtained by a pair of detectors for reading the information of a first track, a detector for reading RF information of a second track adjacent to the first track, a demodulator for demodulating a detection signal outputted from the detector, and a crosstalk canceller which uses the detection signal outputted from the detector to cancel the crosstalk arising from the RF information of the track included in the detection signal outputted from the detector.

Abstract translation: 公开了一种信息再现装置，信号处理装置和信息再现方法，其可以消除对摆动信号的串扰，特别是归因于RF信号的串扰。 用于读取光学记录介质的信息的信息再现装置包括：检测器，用于输出用于读取第一磁道的信息的一对检测器光学获得的各个输出信号之间的差异，用于读取相邻的第二磁道的RF信息的检测器 到第一轨道，用于解调从检测器输出的检测信号的解调器和使用从检测器输出的检测信号的串扰消除器来消除由从包含在从检测器输出的检测信号中的轨道的RF信息引起的串扰 探测器。

公开(公告)号：US20020034150A1

公开(公告)日：2002-03-21

申请号：US09955117

申请日：2001-09-19

Applicant: PIONEER CORPORATION

Inventor： Shogo Miyanabe ,  Hiroki Kuribayashi

IPC: G11B007/00

CPC classification number: G11B20/10046 ,  G11B7/005 ,  G11B20/10009

Abstract: A signal delay apparatus is provided with; a FIR filter for detecting a leakage signal, which is mixed in a digital detected signal, which is optically obtained from a main truck to be detected in association with the information recorded on a sub truck adjacent to the main truck to be detected, based n a filter coefficient; a coefficient setting unit for generating the above filter coefficient based on the digital detected signal, of which leakage signal is removed, and a digital detected signal, and outputting the generated filter coefficient to the filter; a CPU for controlling the delay amount in the delay with respect to any filter coefficient based on the change of the filter coefficient, which is generated in a predetermined time period and variable delay circuits and for delaying the digital detected signal and the digital detected signal by the controlled delay amount.

Abstract translation: 信号延迟装置具有： 基于na，检测与从待检测的主卡车相邻的副卡车上记录的信息与从要检测的主车辆光学获得的数字检测信号混合的FIR滤波器 滤波系数; 系数设定单元，用于根据去除了泄漏信号的数字检测信号和数字检测信号产生上述滤波器系数，并将生成的滤波器系数输出到滤波器; CPU，用于基于在预定时间段内产生的滤波器系数的变化和可变延迟电路来控制相对于任何滤波器系数的延迟的延迟量，并且用于通过以下步骤延迟数字检测信号和数字检测信号 受控延迟量。

公开(公告)号：US20040213340A1

公开(公告)日：2004-10-28

申请号：US10852423

申请日：2004-05-25

Applicant: PIONEER CORPORATION

Inventor： Hiroki Kuribayashi

IPC: H03K005/159

CPC classification number: G11B20/10009 ,  G11B20/1403

Abstract: A waveform equalizer is designed to perform high frequency enhancement on a read signal without increasing inter symbol interference even when the shortest run length of the read signal is not greater than twice the clock period of the channel clock signal. An addition value of weighted values of signal levels of an amplitude limited read signal obtained by limiting the amplitude of the read signal, where the signal levels are at first and second points of time, is added to a signal level at an intermediate timing of the first and second points of time, and a result of the addition is outputted as an equalization corrected read signal.

公开(公告)号：US20020159313A1

公开(公告)日：2002-10-31

申请号：US10105946

申请日：2002-03-26

Applicant: PIONEER CORPORATION

Inventor： Shogo Miyanabe ,  Hiroki Kuribayashi

IPC: G11C007/00

CPC classification number: G11B20/10009

Abstract: In a cross-talk canceller (CTC) that removes the cross-talk from the adjacent tracks that is contained in the reproduction signal from the main track, a sample-value series S1null for the reproduction signal from the adjacent track is input to a correlation-detection unit to find its correlation with the signal pattern of the signal output from the CTC that is detected by a pattern-detection unit, and then it passes through one of the correction-coefficient units that is connected by the switch and then integrated by the integrator, and the tap coefficient used by the variable filter of the CTC is obtained to a narrow control frequency zone.

Abstract translation: 在从主轨道的再现信号中消除来自相邻轨道的串扰的串扰消除器（CTC）中，将来自相邻轨道的再现信号的采样值序列S1'输入到 相关检测单元，找出其与由模式检测单元检测到的从CTC输出的信号的信号图案的相关性，然后通过由开关连接的校正系数单元之一，然后集成 并且由CTC的可变滤波器使用的抽头系数被获得到窄的控制频率区域。