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    • 3. 发明公开
    • Optical disk apparatus, optical recording method, optical recording program and storage medium for optimizing emitting light power
    • 一种光盘装置,光记录方法,光记录程序和记录介质用于优化光能
    • EP1339049A2
    • 2003-08-27
    • EP03250669.3
    • 2003-02-03
    • Ricoh Company Ltd.
    • Suzuki, Haruyuki
    • G11B7/0045G11B7/125
    • G11B7/1267G11B7/0045
    • An optical disk apparatus (1) is disclosed. A light emitting element (4) emits a laser beam directed to a recordable optical disk (2). A driver (3) rotates the optical disk (2). A first optimum recording power obtaining part (8) performs test recording on the optical disk (2) while the optical disk (2) is rotated by the driver (3) and output power of the light emitting element (4) is varied so as to obtain an optimum recording power based on a reproduction signal in a test recorded area. A temperature measuring part (9) measures the temperature in the vicinity of the light emitting element (4). A memory (10) stores the optimum recording power obtained by the first optimum recording power obtaining part (8) and the measured temperature when the optimum recording power is obtained. A temperature-dependent recording power obtaining part refers to the optimum recording power and the associated temperature stored in the memory (10) so as to obtain an optimum recording power according to the temperature measured by the temperature measuring part (9) in real recording. A target recording power setting part (7) sets the optimum recording power obtained by the temperature-dependent recording power obtaining part to a target recording power in the real recording.
    • 的光盘装置(1)是光盘游离缺失。 一种发光元件(4)发出涉及一种可记录光盘(2)的激光束。 的驱动器(3)旋转光盘(2)。 第一最佳记录功率取得部(8)在光盘上执行测试记录(2),而在光盘(2)由驱动器(3)和输出的发光元件的功率旋转(4)被改变,从而 以获得根据在记录测试区域的再现信号最佳记录功率。 温度测量部分(9)测量在所述发光元件(4)的附近的温度。 一种存储器(10)存储由所述第一最佳记录功率取得部(8)和所测量的温度。当的最佳记录功率,获得获得的最佳记录功率。 一个温度相关的记录功率获取部指的最佳记录功率,并存储在存储器(10),以便获得在最佳记录功率雅丁通过在真实记录的温度测量部分(9)测得的温度相关联的温度。 目标记录功率设定部(7)设置由取决于温度的记录功率在真实记录获取部到目标记录功率获得的最佳记录功率。
    • 6. 发明公开
    • Method and apparatus for recording data at accurate location on recording medium
    • 用于在记录介质上的精确位置的记录数据的方法和装置
    • EP1158515A3
    • 2004-05-06
    • EP01304572.9
    • 2001-05-24
    • Ricoh Company, Ltd.
    • Suzuki, Haruyuki
    • G11B20/10
    • G11B20/10009G11B20/10G11B20/10527G11B2020/10814
    • An information recording device (1) includes a buffer memory (9), a buffer management unit (10) and a phase adjusting unit (12). The buffer memory (9) temporarily stores data to be written in a recording medium. The buffer management unit (10) starts writing the data in the recording medium if a size of the data stored in the buffer memory (9) exceeds a first predetermined size, and suspends writing the data in the recording medium if the size of the data stored in the buffer memory (9) becomes less than a second predetermined size. Additionally, the phase adjusting unit (12) starts adjusting a phase error between a signal (Esync) synchronous to the data and a signal (Async) synchronous to a location on the recording medium when the buffer management unit (10) starts writing the data in the recording medium, and finishes adjusting the phase error so that the phase error becomes substantially zero before the buffer management unit (10) suspends writing the data in the recording medium.
    • 一种信息记录装置(1)包括一个缓冲存储器(9),缓冲管理单元(10)和相位调整部(12)。 缓冲存储器(9)中暂时存储要被写入在记录介质中的数据。 缓冲器管理单元(10)开始在记录介质中写入数据,如果大小存储在缓冲存储器(9)中的数据的超过第一预定尺寸,并暂停在记录介质中写入数据,如果数据的大小 存储在缓冲存储器(9)变得小于第二预定尺寸。 此外,所述相位调整部(12)开始调整的信号(ESYNC)同步到数据的信号(异步)同步到所述记录介质上的一个位置之间的相位误差当缓冲管理单元(10)开始将数据写入 在记录介质中,并结束调整相位误差所以没有相位误差基本为零成为缓冲管理单元(10)之前将暂缓在记录介质中写入数据。
    • 10. 发明公开
    • Optical recording/reproducing method and apparatus
    • 光学记录/再现方法和设备
    • EP1519365A3
    • 2005-04-27
    • EP04027270.0
    • 2000-12-19
    • Ricoh Company Ltd.
    • Suzuki, Haruyuki
    • G11B7/00G11B7/125
    • G11B7/126G11B7/0045G11B7/1267
    • In an optical recording/reproducing method and apparatus of the present invention, a modulation parameter is calculated for each of reproduced data signals, each modulation parameter corresponding to one of respective recording powers. An optimum recording power is determined based on a relationship between the modulation parameters and the recording powers, wherein a sequence of pairs of the modulation parameter and the recording power is selected, a gamma, which defines a ratio of a change of the modulation parameter to a change of the recording power, is calculated for each of the selected pairs, and a target recording power corresponding to the optimum recording power is found based on a function derived from a relationship between the calculated gammas and the respective recording powers, the target recording power causing a value of the function to be equal to zero. When selecting the pairs of the modulation parameter and the recording power, a pair of the modulation parameter and the recording power is omitted if a value of the modulation parameter of the pair is not larger than a threshold value, and a pair of the modulation parameter m and the recording power p is selected if a value of the modulation parameter of a following pair first exceeds the threshold value.
    • 在本发明的光学记录/再现方法和设备中,为每个再现数据信号计算调制参数,每个调制参数对应于各个记录功率之一。 基于调制参数和记录功率之间的关系来确定最佳记录功率,其中,调制参数和记录功率的对的序列被选择;伽玛,其定义调制参数与记录功率的变化的比率 记录功率的变化被计算用于每个选择的对,并且基于从所计算的伽玛和各个记录功率之间的关系导出的函数,找到与最优记录功率对应的目标记录功率,目标记录 导致函数值等于零的功率。 当选择调制参数和记录功率对时,如果该对的调制参数的值不大于阈值,则省略一对调制参数和记录功率,并且一对调制参数 如果随后的一对的调制参数的值第一次超过阈值,则选择记录功率p。