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    • 4. 发明申请
    • DIGITAL VIDEO RECORDER WIDE DYNAMIC RANGE OPTICAL POWER CALIBRATION
    • 数字视频录像机宽动态范围光功率校准
    • US20090147635A1
    • 2009-06-11
    • US12332250
    • 2008-12-10
    • Jacob Moshe FinkelsteinAmit MillerErez TsidonMichael LevinAssaf Margalit
    • Jacob Moshe FinkelsteinAmit MillerErez TsidonMichael LevinAssaf Margalit
    • G11B7/00
    • G11B7/1267
    • A method and apparatus are presented for optimizing write operations for optical storage media. A determination is made, at least in part by iteration, of a next power range and a current score for a current power range. If it is determined that the current score is relatively equivalent to a maximum score, a plurality of final parameters is updated and provided, including an optimal power range and a final score. If it is determined that the current score is relatively greater than the final score, then the plurality of final parameters is updated. If it is determined that a maximum number of iterations has been performed, the plurality of final parameters is provided. Otherwise, the current power range is updated with the next power range. One or more of the returned plurality of final parameters are employed to optimize write operations for optical storage media. Determination of the score may also include determining validity of test data segments, selecting a score calculation criterion, and calculating the score based at least in part on the score calculation criterion and on a number and a sequence of valid test data segments. The score calculation criterion may be based on such criterion as beta criterion or modulation amplitude.
    • 提出了一种用于优化光学存储介质的写入操作的方法和装置。 至少部分地通过迭代确定下一功率范围和当前功率范围的当前分数。 如果确定当前分数相当于最大分数,则更新并提供多个最终参数,包括最佳功率范围和最终分数。 如果确定当前分数相对大于最终分数,则更新多个最终参数。 如果确定已经执行了最大迭代次数,则提供多个最终参数。 否则,当前功率范围将以下一个功率范围进行更新。 使用返回的多个最终参数中的一个或多个来优化光学存储介质的写入操作。 评分的确定还可以包括确定测试数据段的有效性,选择分数计算标准,以及至少部分地基于分数计算标准和有效测试数据段的数量和序列来计算分数。 分数计算标准可以基于诸如β标准或调制幅度的标准。
    • 5. 发明授权
    • Digital video recorder wide dynamic range optical power calibration
    • 数字录像机宽动态范围光功率校准
    • US08059506B2
    • 2011-11-15
    • US12476128
    • 2009-06-01
    • Jacob Moshe FinkelsteinAmit MillerErez TsidonMichael LevinAssaf Margalit
    • Jacob Moshe FinkelsteinAmit MillerErez TsidonMichael LevinAssaf Margalit
    • G11B7/00
    • G11B7/1267
    • A method and apparatus are presented for optimizing write operations for optical storage media. A determination is made, at least in part by iteration, of a next power range and a current score for a current power range. If it is determined that the current score is relatively equivalent to a maximum score, a plurality of final parameters is updated and provided, including an optimal power range and a final score. If it is determined that the current score is relatively greater than the final score, then the plurality of final parameters is updated. If it is determined that a maximum number of iterations has been performed, the plurality of final parameters is provided. Otherwise, the current power range is updated with the next power range. One or more of the returned plurality of final parameters are employed to optimize write operations for optical storage media. Determination of the score may also include determining validity of test data segments, selecting a score calculation criterion, and calculating the score based at least in part on the score calculation criterion and on a number and a sequence of valid test data segments. The score calculation criterion may be based on such criterion as beta criterion or modulation amplitude.
    • 提出了一种用于优化光学存储介质的写入操作的方法和装置。 至少部分地通过迭代确定下一功率范围和当前功率范围的当前分数。 如果确定当前分数相当于最大分数,则更新并提供多个最终参数,包括最佳功率范围和最终分数。 如果确定当前分数相对大于最终分数,则更新多个最终参数。 如果确定已经执行了最大迭代次数,则提供多个最终参数。 否则,当前功率范围将以下一个功率范围进行更新。 使用返回的多个最终参数中的一个或多个来优化光学存储介质的写入操作。 评分的确定还可以包括确定测试数据段的有效性,选择分数计算标准,以及至少部分地基于分数计算标准和有效测试数据段的数量和序列来计算分数。 分数计算标准可以基于诸如β标准或调制幅度的标准。