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    Integrated circuit monitoring an internal signal converted from an analog input signal
    1.
    发明授权
    Integrated circuit monitoring an internal signal converted from an analog input signal 有权
    集成电路监控从模拟输入信号转换的内部信号

    公开(公告)号：US07584315B2

    公开(公告)日：2009-09-01

    申请号：US10818568

    申请日：2004-04-06

    申请人： Naohiro Kimura ,  Harumitsu Miyashita ,  Takeshi Nakajima ,  Hiromichi Ishibashi ,  Yoshikazu Yamamoto ,  Kohei Nakata

    发明人： Naohiro Kimura ,  Harumitsu Miyashita ,  Takeshi Nakajima ,  Hiromichi Ishibashi ,  Yoshikazu Yamamoto ,  Kohei Nakata

    IPC分类号： G06F13/12 ,  G06F3/00 ,  G06F13/00 ,  G11B7/085

    CPC分类号： G01R31/3177

    摘要： An integrated circuit includes: a signal processor, which receives an input signal and generates a processed signal, representing processing information obtained by subjecting the input signal to predetermined processing, and at least one type of internal signal including internal information obtained during the processing; at least one memory storing the processing information; an interface exchanges signals with an external device; and a controller controlling the signal processor, memory and interface. On receiving a first instruction from the external device through the interface, the controller controls the signal processor and memory such that the processing information is once stored in the memory and then output to the external device via the interface. In response to a second instruction, the controller controls the signal processor and memory such that the internal information is once stored in the memory and then output to the external device via the interface.

    摘要翻译： 集成电路包括：信号处理器，其接收输入信号并产生经处理的信号，表示通过对输入信号进行预定处理而获得的处理信息;以及至少一种内部信号，包括在处理期间获得的内部信息; 存储所述处理信息的至少一个存储器; 接口与外部设备交换信号; 以及控制信号处理器，存储器和接口的控制器。 在通过接口从外部设备接收到第一指令时，控制器控制信号处理器和存储器，使得处理信息曾经存储在存储器中，然后经由接口输出到外部设备。 响应于第二指令，控制器控制信号处理器和存储器，使得内部信息被一次存储在存储器中，然后经由接口输出到外部设备。

    Signal evaluation method and signal evaluation apparatus
    6.
    发明授权
    Signal evaluation method and signal evaluation apparatus 有权
    信号评估方法及信号评估装置

    公开(公告)号：US08098557B2

    公开(公告)日：2012-01-17

    申请号：US13034762

    申请日：2011-02-25

    申请人： Harumitsu Miyashita ,  Kohei Nakata ,  Yasumori Hino ,  Naohiro Kimura

    发明人： Harumitsu Miyashita ,  Kohei Nakata ,  Yasumori Hino ,  Naohiro Kimura

    IPC分类号： G11B7/00

    CPC分类号： G11B20/10009 ,  G11B20/10046 ,  G11B20/10055 ,  G11B20/10111 ,  G11B20/1012 ,  G11B20/10212 ,  G11B20/10277 ,  G11B20/10296 ,  G11B20/10361 ,  G11B20/1037 ,  G11B20/10398 ,  G11B20/10472 ,  G11B20/10481 ,  G11B20/1816 ,  G11B20/182 ,  G11B20/225 ,  G11B2220/2541

    摘要： A signal evaluation method according to the present invention is a method for evaluating a read signal, retrieved from an information recording medium, based on a binarized signal generated from the read signal by a PRML method. The method includes the steps of: detecting the patterns of multiple paths associated with the binarized signal and merging into the same state; getting the ideal value of a correct pattern associated with the binarized signal and that of an erroneous pattern that is similar to, but different from, the correct pattern; calculating the difference between a distance from the ideal value of the correct pattern to the read signal and a distance from that of the erroneous pattern to the read signal; calculating, based on the difference, an expected error rate for each predetermined group of patterns by the PRML method; and calculating a standard deviation that is associated with a total error rate, which is obtained by adding together the error rates of the predetermined groups of patterns, and that is used for evaluating the read signal.

    摘要翻译： 根据本发明的信号评估方法是一种用于根据通过PRML方法从读取信号产生的二值化信号来评估从信息记录介质检索的读取信号的方法。 该方法包括以下步骤：检测与二值化信号相关联的多个路径的模式并合并成相同的状态; 获得与二值化信号相关联的正确模式的理想值以及类似于但不同于正确模式的错误模式的理想值; 计算从正确图案的理想值到读取信号的距离与从错误图案到读取信号的距离之间的差; 基于差异，通过PRML方法计算每个预定组模式的预期误码率; 以及计算与总误差率相关联的标准偏差，其通过将预定组图案的误差率相加并且用于评估读取信号而获得。

    Signal evaluation method and signal evaluation apparatus
    7.
    发明授权
    Signal evaluation method and signal evaluation apparatus 有权
    信号评估方法及信号评估装置

    公开(公告)号：US08068399B2

    公开(公告)日：2011-11-29

    申请号：US12394281

    申请日：2009-02-27

    申请人： Harumitsu Miyashita ,  Kohei Nakata ,  Yasumori Hino ,  Naohiro Kimura

    发明人： Harumitsu Miyashita ,  Kohei Nakata ,  Yasumori Hino ,  Naohiro Kimura

    IPC分类号： G11B5/09

    CPC分类号： G11B20/10009 ,  G11B20/10046 ,  G11B20/10055 ,  G11B20/10111 ,  G11B20/1012 ,  G11B20/10212 ,  G11B20/10277 ,  G11B20/10296 ,  G11B20/10361 ,  G11B20/1037 ,  G11B20/10398 ,  G11B20/10472 ,  G11B20/10481 ,  G11B20/1816 ,  G11B20/182 ,  G11B20/225 ,  G11B2220/2541

    摘要： A signal evaluation method according to the present invention is a method for evaluating a read signal, retrieved from an information recording medium, based on a binarized signal generated from the read signal by a PRML method. The method includes the steps of: detecting the patterns of multiple paths associated with the binarized signal and merging into the same state; getting the ideal value of a correct pattern associated with the binarized signal and that of an erroneous pattern that is similar to, but different from, the correct pattern; calculating the difference between a distance from the ideal value of the correct pattern to the read signal and a distance from that of the erroneous pattern to the read signal; calculating, based on the difference, an expected error rate for each predetermined group of patterns by the PRML method; and calculating a standard deviation that is associated with a total error rate, which is obtained by adding together the error rates of the predetermined groups of patterns, and that is used for evaluating the read signal.

    摘要翻译： 根据本发明的信号评估方法是一种用于根据通过PRML方法从读取信号产生的二值化信号来评估从信息记录介质检索的读取信号的方法。 该方法包括以下步骤：检测与二值化信号相关联的多个路径的模式并合并成相同的状态; 获得与二值化信号相关联的正确模式的理想值以及类似于但不同于正确模式的错误模式的理想值; 计算从正确图案的理想值到读取信号的距离与从错误图案到读取信号的距离之间的差; 基于差异，通过PRML方法计算每个预定组模式的预期误码率; 以及计算与总误差率相关联的标准偏差，其通过将预定组图案的误差率相加并且用于评估读取信号而获得。

    OPTICAL DISC, OPTICAL DISC DRIVE, OPTICAL DISC RECORDING/REPRODUCING METHOD, AND INTEGRATED CIRCUIT
    8.
    发明申请
    OPTICAL DISC, OPTICAL DISC DRIVE, OPTICAL DISC RECORDING/REPRODUCING METHOD, AND INTEGRATED CIRCUIT 审中-公开
    光盘，光盘驱动器，光盘记录/再现方法和集成电路

    公开(公告)号：US20090175151A1

    公开(公告)日：2009-07-09

    申请号：US12274428

    申请日：2008-11-20

    申请人： Harumitsu Miyashita ,  Kohei Nakata ,  Naohiro Kimura

    发明人： Harumitsu Miyashita ,  Kohei Nakata ,  Naohiro Kimura

    IPC分类号： G11B7/00 ,  G11B7/24

    CPC分类号： G11B20/1217 ,  G11B2020/1267 ,  G11B2020/1279 ,  G11B2220/235 ,  G11B2220/2537

    摘要： An address format for appropriately controlling the recording linear density and the number of information recording layers is provided in order to increase the recording capacity of an information recording medium such as an optical disc or the like in a range in which a necessary S/N ratio can be guaranteed. An optical disc includes an information recording layer having a concentric or spiral track, and has a format for describing a track address, which is pre-recorded on the track or is to be added to data that is to be recorded on the information recording layer. The format includes layer information regarding the information recording layer and address information regarding the track address.

    摘要翻译： 提供了用于适当地控制记录线密度和信息记录层数的地址格式，以便在诸如光盘等的信息记录介质的记录容量在必要的S / N比 可以保证。 光盘包括具有同心或螺旋形轨道的信息记录层，并且具有用于描述轨道地址的格式，其被预先记录在轨道上或被添加到待记录在信息记录层上的数据 。 该格式包括关于信息记录层的层信息和关于轨道地址的地址信息。

    Frequency and phase control apparatus and maximum likelihood decoder
    9.
    发明授权
    Frequency and phase control apparatus and maximum likelihood decoder 有权
    频率和相位控制装置和最大似然解码器

    公开(公告)号：US07623586B2

    公开(公告)日：2009-11-24

    申请号：US10532468

    申请日：2003-10-20

    申请人： Harumitsu Miyashita ,  Takeshi Nakajima ,  Naohiro Kimura

    发明人： Harumitsu Miyashita ,  Takeshi Nakajima ,  Naohiro Kimura

    IPC分类号： H04L23/02 ,  H04L5/12

    CPC分类号： G11B27/3027 ,  G11B20/10009 ,  G11B20/10037 ,  G11B20/10055 ,  G11B20/10222 ,  G11B20/10425 ,  G11B2020/1288 ,  G11B2220/2541 ,  G11B2220/2562 ,  H03L7/091 ,  H03L7/107 ,  H04L7/033 ,  H04L7/041

    摘要： A frequency and phase control apparatus includes an analog/digital conversion section for converting a reproduction signal into a multiple bit digital signal based on a clock signal; a maximum likelihood decoding section for converting the multiple bit digital signal into a binary signal; a pattern detection section for detecting a pattern of the binary signal; and a determination section for determining whether or not the multiple bit digital signal and the clock signal are in synchronization with each other based on the detection result. When the determination result of the determination section indicates that the multiple bit digital signal and the clock signal are in synchronization with each other, the maximum likelihood decoding section generates a binary signal based on a first state transition rule; otherwise, the maximum likelihood decoding section generates a binary signal based on a second state transition rule.

    摘要翻译： 频率相位控制装置包括：模拟/数字转换部分，用于基于时钟信号将再现信号转换成多位数字信号; 最大似然解码部分，用于将多位数字信号转换成二进制信号; 模式检测部分，用于检测二进制信号的模式; 以及确定部分，用于基于检测结果确定多位数字信号和时钟信号是否彼此同步。 当确定部分的确定结果指示多位数字信号和时钟信号彼此同步时，最大似然解码部分基于第一状态转换规则产生二进制信号; 否则，最大似然解码部分基于第二状态转换规则生成二进制信号。

    Optical disc apparatus, clock signal generation method, program, and control apparatus
    10.
    发明申请
    Optical disc apparatus, clock signal generation method, program, and control apparatus 审中-公开
    光盘装置，时钟信号生成方法，程序和控制装置

    公开(公告)号：US20050111318A1

    公开(公告)日：2005-05-26

    申请号：US10973780

    申请日：2004-10-26

    申请人： Takeshi Nakajima ,  Harumitsu Miyashita ,  Naohiro Kimura

    发明人： Takeshi Nakajima ,  Harumitsu Miyashita ,  Naohiro Kimura

    IPC分类号： G11B5/09 ,  G11B7/00 ,  G11B7/09 ,  G11B20/10 ,  G11B20/14 ,  G11B27/24 ,  H03L7/08 ,  H03L7/085 ,  H03L7/091

    CPC分类号： G11B27/24 ,  G11B20/1403 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2562 ,  G11B2220/2575 ,  H03L7/085 ,  H03L7/091

    摘要： An optical disc apparatus is provided, which comprises a signal detection section for detecting a wobble signal from a reproduced signal of an optical disc, and a generation section for generating a clock signal in synchronization with the wobble signal. The generation section comprises a first difference signal generation section for generating a first difference signal indicating a difference between a frequency of the wobble signal and a frequency of the clock signal, a period detection section for detecting a modulation period of the wobble signal based on the first difference signal, and an adjustment section for adjusting the frequency of the clock signal based on a predetermined signal other than the first difference signal during a modulation period, and adjusting the frequency of the clock signal based on the first difference signal during a period other than the modulation period.

    摘要翻译： 提供了一种光盘装置，其包括用于从光盘的再现信号检测摆动信号的信号检测部分和用于与摆动信号同步地产生时钟信号的生成部分。 所述生成部分包括：第一差分信号生成部分，用于产生指示摆动信号的频率与时钟信号的频率之间的差异的第一差分信号;周期检测部分，用于基于所述摆动信号的调制周期检测所述摆动信号; 第一差分信号和调整部分，用于在调制周期期间基于除第一差分信号之外的预定信号调整时钟信号的频率，并且在其它时间段期间基于第一差分信号调整时钟信号的频率 比调制周期。