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    • 1. 发明申请
    • Optical information recording device, optical information recording method, and signal processing circuit
    • 光信息记录装置,光信息记录方法和信号处理电路
    • US20060187788A1
    • 2006-08-24
    • US11350581
    • 2006-02-08
    • Hiroya KakimotoMitsuo SekiguchiIsao MatsudaMasashi Yamada
    • Hiroya KakimotoMitsuo SekiguchiIsao MatsudaMasashi Yamada
    • G11B5/09
    • G11B7/00456
    • The present invention enables a recording condition closer to an optimum to be obtained even for media unknown to a drive. The present invention provides a method that is especially effective for the case where it is applied to a code identification scheme, such as PRML in which code identification is performed on the basis of information on the amplitude of an RF signal. A condition for a recording pulse comprised of a top pulse, an intermediate pulse and a last pulse is configured in a predetermined order, that is, a reference condition is first determined by a test recording involving an examination of recording quality and changes in conditions for a power and a pulse width, then a condition for the last pulse is determined by a test recording using the reference condition, and subsequently a condition for the intermediate pulse is determined using the reference condition and the last pulse. A phase shift is corrected by a test recording using the recording pulse obtained by configuring the above conditions.
    • 本发明使得即使对于驱动器未知的介质也能够获得更接近于最佳的记录条件。 本发明提供了一种对于将其应用于诸如基于关于RF信号的幅度的信息执行代码识别的代码识别方案的代码识别方案的情况特别有效的方法。 由顶部脉冲,中间脉冲和最后脉冲组成的记录脉冲的条件以预定顺序配置,即,参考条件首先由涉及记录质量检查和条件变化的测试记录确定 功率和脉冲宽度,则通过使用参考条件的测试记录来确定最后脉冲的条件,随后使用参考条件和最后脉冲确定中间脉冲的条件。 通过使用通过配置上述条件获得的记录脉冲的测试记录来校正相移。
    • 3. 发明授权
    • Optical information recording device, optical information recording method, and signal processing circuit
    • 光信息记录装置,光信息记录方法和信号处理电路
    • US07684302B2
    • 2010-03-23
    • US11350581
    • 2006-02-08
    • Hiroya KakimotoMitsuo SekiguchiIsao MatsudaMasashi Yamada
    • Hiroya KakimotoMitsuo SekiguchiIsao MatsudaMasashi Yamada
    • G11B7/00
    • G11B7/00456
    • The present invention enables a recording condition closer to an optimum to be obtained even for media unknown to a drive. The present invention provides a method that is especially effective for the case where it is applied to a code identification scheme, such as PRML in which code identification is performed on the basis of information on the amplitude of an RF signal. A condition for a recording pulse comprised of a top pulse, an intermediate pulse and a last pulse is configured in a predetermined order, that is, a reference condition is first determined by a test recording involving an examination of recording quality and changes in conditions for a power and a pulse width, then a condition for the last pulse is determined by a test recording using the reference condition, and subsequently a condition for the intermediate pulse is determined using the reference condition and the last pulse. A phase shift is corrected by a test recording using the recording pulse obtained by configuring the above conditions.
    • 本发明使得即使对于驱动器未知的介质也能够获得更接近于最佳的记录条件。 本发明提供了一种对于将其应用于诸如基于关于RF信号的幅度的信息执行代码识别的代码识别方案的代码识别方案的情况特别有效的方法。 由顶部脉冲,中间脉冲和最后脉冲组成的记录脉冲的条件以预定顺序配置,即,参考条件首先由涉及记录质量检查和条件变化的测试记录确定 功率和脉冲宽度,则通过使用参考条件的测试记录来确定最后脉冲的条件,随后使用参考条件和最后脉冲确定中间脉冲的条件。 通过使用通过配置上述条件获得的记录脉冲的测试记录来校正相移。
    • 7. 发明申请
    • Optical information recording device, optical information recording method, and signal processing circuit
    • 光信息记录装置,光信息记录方法和信号处理电路
    • US20060256690A1
    • 2006-11-16
    • US11390686
    • 2006-03-28
    • Mitsuo SekiguchiHiroya KakimotoIsao MatsudaYoshikazu Sato
    • Mitsuo SekiguchiHiroya KakimotoIsao MatsudaYoshikazu Sato
    • G11B5/09
    • G11B20/10009G11B7/00456G11B7/1267G11B2020/1275
    • It is an object of certain inventive aspects to provide a recording condition closer to an optimum even for a medium unknown to a drive, and more particularly, to provide means for obtaining a preferable recording condition even for a high-speed recording in which conducting a test recording is difficult. In order to accomplish the object, a power and a phase of a recording pulse are simultaneously corrected at predetermined timing, depending on a recording speed or a recording position such as an inner or outer circumference. For instance, a phase shift ΔPhase generated due to a continuing recording from an inner circumference to an outer circumference at ×2 speed is corrected simultaneously with a correction of a power shift at the timing when a recording speed is changed from ×2 to ×4. For the other recording speed, in the same manner as above, a power and a phase shift are simultaneously corrected at every time when a recording speed is changed.
    • 某些创造性方面的目的是提供即使对于驱动器未知的介质也更接近于最佳的记录条件,更具体地,提供用于获得优选的记录条件的装置,即使对于高速记录 测试录音很困难。 为了实现该目的,根据记录速度或诸如内圆周或外周的记录位置,在预定的定时同时校正记录脉冲的功率和相位。 例如,在将记录速度从x2改变为x4的定时,与从内圆周到外圆的x2速度的连续记录而产生的相位差相位差同步校正。 对于其他记录速度,以与上述相同的方式,每当记录速度改变时,同时校正功率和相移。
    • 9. 发明授权
    • Optical information recording device, optical information recording method, and signal processing circuit
    • 光信息记录装置,光信息记录方法和信号处理电路
    • US07738337B2
    • 2010-06-15
    • US11390686
    • 2006-03-28
    • Mitsuo SekiguchiHiroya KakimotoIsao MatsudaYoshikazu Sato
    • Mitsuo SekiguchiHiroya KakimotoIsao MatsudaYoshikazu Sato
    • G11B7/00
    • G11B20/10009G11B7/00456G11B7/1267G11B2020/1275
    • It is an object of certain inventive aspects to provide a recording condition closer to an optimum even for a medium unknown to a drive, and more particularly, to provide means for obtaining a preferable recording condition even for a high-speed recording in which conducting a test recording is difficult. In order to accomplish the object, a power and a phase of a recording pulse are simultaneously corrected at predetermined timing, depending on a recording speed or a recording position such as an inner or outer circumference. For instance, a phase shift ΔPhase generated due to a continuing recording from an inner circumference to an outer circumference at ×2 speed is corrected simultaneously with a correction of a power shift at the timing when a recording speed is changed from ×2 to ×4. For the other recording speed, in the same manner as above, a power and a phase shift are simultaneously corrected at every time when a recording speed is changed.
    • 某些创造性方面的目的是提供即使对于驱动器未知的介质也更接近于最佳的记录条件,更具体地,提供用于获得优选的记录条件的装置,即使对于高速记录 测试录音很困难。 为了实现该目的,根据记录速度或诸如内圆周或外周的记录位置,在预定的定时同时校正记录脉冲的功率和相位。 例如,由于在×2速度下从内圆周到外圆周的连续记录而产生的相移&Dgr相位与记录速度从×2变更为定时的功率偏移的校正同时被修正为 ×4。 对于其他记录速度,以与上述相同的方式,每当记录速度改变时,同时校正功率和相移。