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    • 6. 发明授权
    • Optical information recording reproduction device
    • 光信息记录再生装置
    • US07755993B2
    • 2010-07-13
    • US11843556
    • 2007-08-22
    • Katsuhiro OyamaMitsuo SekiguchiHiroya KakimotoFuyuki Miyazawa
    • Katsuhiro OyamaMitsuo SekiguchiHiroya KakimotoFuyuki Miyazawa
    • G11B7/00
    • G11B7/0945G11B7/13925
    • An optical information recording reproduction device is disclosed, in which aberration detection is stably performed, so that an excellent record grade can be achieved. An RF signal is subjected to differential operation along a time axis of the signal, the RF signal being obtained from reflected light including primary light situated in the periphery of a primary dark ring enclosing zero-order light in a central portion of a beam spot formed on a pit; pulse signal waveforms are represented in an absolute value form, the pulse signal waveforms being generated in correspondence with front and rear ends of the beam spot on the time axis; the pulse signal waveforms represented in the absolute value form are stored into a storage medium; the stored, two pulse signal waveforms are combined to generate a beam profile of the beam spot formed on an optical recording medium; and a beam spot diameter, spherical aberration, and coma aberration of a record laser beam are adjusted based on the beam profile.
    • 公开了一种稳定地进行像差检测的光信息记录再现装置,从而可以获得良好的记录等级。 RF信号沿着信号的时间轴进行差分操作,RF信号从包含初级光的反射光的反射光获得,该主光位于形成的光束点的中心部分中的包围零级光的初级暗环的周围 在坑里 脉冲信号波形以绝对值形式表示,脉冲信号波形是根据时间轴上的光束点的前端和后端产生的; 以绝对值形式表示的脉冲信号波形被存储到存储介质中; 存储的两个脉冲信号波形被组合以产生形成在光学记录介质上的光束的光束分布; 并且基于光束轮廓来调整记录激光束的束斑直径,球面像差和彗形像差。
    • 7. 发明授权
    • Optical recording method, optical recording apparatus, one-chip CPU device, and computer program
    • 光记录方法,光记录装置,单片CPU装置和计算机程序
    • US07693016B2
    • 2010-04-06
    • US11501601
    • 2006-08-08
    • Fuyuki MiyazawaHiroya KakimotoMitsuo Sekiguchi
    • Fuyuki MiyazawaHiroya KakimotoMitsuo Sekiguchi
    • G11B19/02
    • G11B7/1267G11B2007/0013
    • There are provided an optical recording method, an optical recording apparatus, a one-chip CPU device, and a computer program. Reference data corresponding to a recording condition of a first recording layer, a physical characteristic value correlated with the recording condition, and a physical characteristic value correlated with a recording condition of a second recording layer are extracted from a data table in a memory, and the recording condition of the extracted reference data is set as a recording condition of a recording medium as an information recording target. When no correlated reference data exists, the closest reference data are extracted from the data table, and a recording pulse condition suitable for recording information on the second recording layer of an optical disk as the information recording target is extracted on the basis of the correlation between the recording condition of the reference data and the physical characteristic value.
    • 提供了光记录方法,光记录装置,单片CPU装置和计算机程序。 从存储器中的数据表中提取与第一记录层的记录条件相对应的参考数据,与记录条件相关的物理特性值和与第二记录层的记录条件相关的物理特性值, 所提取的参考数据的记录条件被设置为作为信息记录目标的记录介质的记录条件。 当没有相关参考数据存在时,从数据表中提取最接近的参考数据,并且基于在作为信息记录目标的光盘的第二记录层上记录信息的记录脉冲条件是基于 参考数据的记录条件和物理特性值。
    • 9. 发明申请
    • Apparatus and method for optical information recording and reproducing
    • 用于光信息记录和再现的装置和方法
    • US20070159946A1
    • 2007-07-12
    • US11638199
    • 2006-12-13
    • Hiroya KakimotoMitsuo SekiguchiFuyuki Miyazawa
    • Hiroya KakimotoMitsuo SekiguchiFuyuki Miyazawa
    • G11B20/10
    • G11B7/00736G11B7/00456G11B7/0062
    • A recording condition on a media is optimized by introducing a new evaluation index. An apparatus for optical information recording and reproducing includes: a measurement means for recording codes including a specific code in a medium for optical information recording and reproducing, reproducing the codes from the medium for optical information recording and reproducing, and measuring, from a reproduced signal of the codes, a peak value of amplitude of a reproduced signal related to the specific code, the peak value being a maximum value or a minimum value of the amplitude of the reproduced signal related to the specific code; a statistic calculation means for calculating preset statistic by using a plurality of peak values at the same or different recording places, the plurality of peak value having been obtained by the measurement means; and a condition decision means for deciding at least one of a recording laser power condition and a recording pulse condition by using the statistic. The peak value and the statistic thereof serving as a new evaluation index are effective for evaluation of the apparatus for optical information recording and reproducing or setting of a recording condition in the specification.
    • 通过引入新的评估指标来优化介质上的记录条件。 一种用于光学信息记录和再现的装置,包括:用于在用于光学信息记录和再现的介质中记录包括特定代码的代码的测量装置,从用于光学信息记录和再现的介质再现代码,以及从再现信号 与特定码相关的再现信号的振幅的峰值,峰值是与特定码相关的再现信号的幅度的最大值或最小值; 统计量计算装置,用于通过在相同或不同记录位置处使用多个峰值来计算预设统计量,所述多个峰值已由所述测量装置获得; 以及条件决定装置,用于通过使用统计量来决定记录激光功率条件和记录脉冲条件中的至少一个。 作为新的评价指标的峰值和统计量对于评价说明书中记录和再现记录条件的光学信息的装置是有效的。
    • 10. 发明授权
    • Data recording evaluation method and optical disk recording and reproduction device
    • 数据记录评估方法和光盘记录和再现装置
    • US07965600B2
    • 2011-06-21
    • US11965505
    • 2007-12-27
    • Hiroya KakimotoFuyuki MiyazawaMitsuo SekiguchiKatsuhiro Oyama
    • Hiroya KakimotoFuyuki MiyazawaMitsuo SekiguchiKatsuhiro Oyama
    • G11B7/00
    • G11B20/10009G11B7/00458G11B7/1267
    • Novel evaluation indexes are introduced to allow both a total evaluation of data recording and an evaluation of individual detection patterns. A data recording evaluation method includes a step of reproducing a result of data recording performed on an optical disk and identifying a predetermined detection pattern in a reproduction signal, a step of detecting a signal state of the reproduction signal associated with the predetermined detection pattern, and a first calculation step for calculating a first evaluation index value based on the detected signal state and a reference state identified from the predetermined detection pattern. When there is a plurality of predetermined detection patterns as described above, a second calculation step is further provided for calculating a second recording state evaluation index value using the first evaluation index value calculated from each of the predetermined detection patterns. Data recording can be properly evaluated using the first and second recording state evaluation index values.
    • 引入了新的评估指标,以便对数据记录进行总体评估,并对个别检测模式进行评估。 数据记录评估方法包括重现在光盘上执行的数据记录结果并识别再现信号中的预定检测图案的步骤,检测与预定检测图案相关联的再现信号的信号状态的步骤,以及 第一计算步骤,用于基于检测到的信号状态和从预定检测图案识别的参考状态来计算第一评估指标值。 当存在如上所述的多个预定检测模式时,还提供第二计算步骤,用于使用从每个预定检测图案计算出的第一评估指标值来计算第二记录状态评估指标值。 可以使用第一和第二记录状态评估指标值适当地评估数据记录。