OPTICAL DISC, OPTICAL DISC DRIVE, OPTICAL DISC RECORDING/REPRODUCING METHOD, AND INTEGRATED CIRCUIT
    81.
    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

    IPC分类号: G11B7/00 G11B7/24

    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。

    Recording control apparatus, recording and reproduction apparatus, and recording control method
    82.
    发明授权
    Recording control apparatus, recording and reproduction apparatus, and recording control method 有权
    记录控制装置,记录和再现装置以及记录控制方法

    公开(公告)号:US07453658B2

    公开(公告)日:2008-11-18

    申请号:US12046025

    申请日:2008-03-11

    IPC分类号: G11B5/035 G11B7/00

    摘要: A recording control apparatus includes a waveform rectification section for receiving a digital signal generated from an analog signal representing information reproduced from an information recording medium, and rectifying a waveform of the digital signal; a maximum likelihood decoding section for performing maximum likelihood decoding of the digital signal having the waveform thereof rectified, and generating a binary signal representing a result of the maximum likelihood decoding; a reliability calculation section for calculating a reliability of the result of the maximum likelihood decoding based on the digital signal having the waveform thereof rectified and the binary signal; and an adjusting section for adjusting a shape of a recording signal for recording the information on the information recording medium based on the calculated reliability.

    摘要翻译: 一种记录控制装置,包括:波形整流部分,用于接收从表示从信息记录介质再现的信息的模拟信号产生的数字信号,并整流数字信号的波形; 最大似然解码部分,用于对其波形进行整流的数字信号进行最大似然解码,并生成表示最大似然解码结果的二进制信号; 可靠性计算部分,用于基于其整流波形的数字信号和二进制信号来计算最大似然解码结果的可靠性; 以及调整部,用于基于所计算的可靠性来调整用于将信息记录在信息记录介质上的记录信号的形状。

    Information Processing Device, Access Device, Recording Medium, Information Processing Method, And Information Processing Program
    84.
    发明申请
    Information Processing Device, Access Device, Recording Medium, Information Processing Method, And Information Processing Program 有权
    信息处理装置,接入装置,记录介质,信息处理方法和信息处理程序

    公开(公告)号:US20080112288A1

    公开(公告)日:2008-05-15

    申请号:US11666884

    申请日:2005-10-14

    IPC分类号: G11B27/36

    摘要: An information processing device (225) is a device for processing specific information recorded to a recording medium (100), and has a characteristic identification unit (204) and a processing unit (226). The characteristic identification unit (204) identifies the reflection characteristic of the recording medium (100). The processing unit (226) processes the specific information recorded to the recording medium (100) according to the identified reflection characteristic. The reflection characteristic is either a first characteristic such that the reflectance of light reflected by a recorded region of the recording medium (100) (referred to as first reflectance) is greater than the reflectance of light reflected by an unrecorded region of the recording medium (100) (referred to as second reflectance), or a second characteristic such that the first reflectance is less than the second reflectance.

    摘要翻译: 信息处理装置(225)是用于处理记录在记录介质(100)上的特定信息的装置,具有特征识别部(204)和处理部(226)。 特征识别单元(204)识别记录介质(100)的反射特性。 处理单元(226)根据所识别的反射特性来处理记录到记录介质(100)的特定信息。 反射特性是由记录介质(100)的记录区域反射的光的反射率(被称为第一反射率)大于由记录介质的未记录区域反射的光的反射率的第一特性( 100)(称为第二反射率)或第二特性,使得第一反射率小于第二反射率。

    Recording method, recording apparatus, program and recording control apparatus
    85.
    发明申请
    Recording method, recording apparatus, program and recording control apparatus 审中-公开
    记录方法,记录装置,程序和记录控制装置

    公开(公告)号:US20070121450A1

    公开(公告)日:2007-05-31

    申请号:US10577865

    申请日:2004-11-01

    IPC分类号: G11B7/12

    摘要: The present invention provides a recording method for recording information on a recording medium under one recording condition of a plurality of recording conditions. The recording method includes the steps of: (a) recording a plurality of test information on the recording medium under the plurality of recording conditions; and (b) recording the information on the recording medium under one recording condition of the plurality of recording conditions, wherein the step (b) includes: the step of (b-1) calculating differences between each of a plurality of test signals obtained by reproducing the plurality of test information recorded on the recording medium and at least one desired signal; and (b-2) selecting one recording condition of the plurality of recording conditions by referring to the calculated differences.

    摘要翻译: 本发明提供一种用于在多个记录条件的一个记录条件下在记录介质上记录信息的记录方法。 记录方法包括以下步骤:(a)在多个记录条件下在记录介质上记录多个测试信息; 以及(b)在多个记录条件的一个记录条件下将信息记录在记录介质上,其中步骤(b)包括:(b-1)步骤,计算由 再现记录在记录介质上的多个测试信息和至少一个期望信号; 和(b-2)参照所计算出的差异来选择多个记录条件的一个记录条件。

    PRML detector having a viterbi decoder outputting temporary judgement results
    87.
    发明授权
    PRML detector having a viterbi decoder outputting temporary judgement results 有权
    PRML检测器具有输出临时判断结果的维特比解码器

    公开(公告)号:US06937551B2

    公开(公告)日:2005-08-30

    申请号:US10405626

    申请日:2003-04-03

    IPC分类号: G11B7/00 G11B7/005 G11B20/10

    摘要: A PRML detector includes a waveform equalizer for equalizing a waveform of a reproduction signal obtained by reproducing marks and non-marks recorded on a recording medium, and a decoder for generating binary-coded data of the reproduction signal based on the waveform equalized by the waveform equalizer. The decoder outputs a temporary data string which is obtained before the binary-coded data is obtained. The waveform equalizer includes an equalizer that includes a delay element that delays propagation of the reproduction signal, a plurality of multipliers that multiply predetermined coefficients by the reproduction signal and the delayed signal from the delay element, and an adder that adds outputs from the plurality of multipliers. A target value judger determines a target value for equalizing based on the temporary data string output from the decoder and a coefficient adaptive controller calculates the predetermined coefficients and adaptively updates the calculated predetermined coefficients for each of a plurality of multipliers.

    摘要翻译: PRML检测器包括用于均衡通过再现记录在记录介质上的标记和非标记而获得的再现信号的波形的波形均衡器,以及用于基于由波形均衡的波形来生成再现信号的二进制编码数据的解码器 均衡器 解码器输出在获得二进制编码数据之前获得的临时数据串。 波形均衡器包括均衡器,其包括延迟再现信号的传播的延迟元件,将来自延迟元件的再现信号和延迟信号乘以预定系数的多个乘法器和加法器,该加法器将来自多个 乘数。 目标值判断器基于从解码器输出的临时数据串确定用于均衡的目标值,并且系数自适应控制器计算预定系数,并且针对多个乘法器中的每一个自适应地更新所计算的预定系数。

    Recording control apparatus, recording and reproduction apparatus, and recording control method
    88.
    发明申请
    Recording control apparatus, recording and reproduction apparatus, and recording control method 有权
    记录控制装置,记录和再现装置以及记录控制方法

    公开(公告)号:US20050078579A1

    公开(公告)日:2005-04-14

    申请号:US10823264

    申请日:2004-04-13

    IPC分类号: G11B20/10 G11B20/14 G11B7/00

    摘要: A recording control apparatus includes a waveform rectification section for receiving a digital signal generated from an analog signal representing information reproduced from an information recording medium, and rectifying a waveform of the digital signal; a maximum likelihood decoding section for performing maximum likelihood decoding of the digital signal having the waveform thereof rectified, and generating a binary signal representing a result of the maximum likelihood decoding; a reliability calculation section for calculating a reliability of the result of the maximum likelihood decoding based on the digital signal having the waveform thereof rectified and the binary signal; and an adjusting section for adjusting a shape of a recording signal for recording the information on the information recording medium based on the calculated reliability.

    摘要翻译: 一种记录控制装置,包括:波形整流部分,用于接收从表示从信息记录介质再现的信息的模拟信号产生的数字信号,并整流数字信号的波形; 最大似然解码部分,用于对其波形进行整流的数字信号进行最大似然解码,并生成表示最大似然解码结果的二进制信号; 可靠性计算部分,用于基于其整流波形的数字信号和二进制信号来计算最大似然解码结果的可靠性; 以及调整部,用于基于所计算的可靠性来调整用于将信息记录在信息记录介质上的记录信号的形状。