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45 条记录 (耗时 0.039 秒)

    Optical recording method and optical recording apparatus
    22.
    发明公开
    Optical recording method and optical recording apparatus 审中-公开
    光记录方法和光记录装置

    公开(公告)号：EP2299441A2

    公开(公告)日：2011-03-23

    申请号：EP10197371.7

    申请日：2004-02-19

    申请人： VICTOR COMPANY OF JAPAN, LTD.

    发明人： Tabata, Hiroshi ,  Yonehara, Kazuo ,  Ueki, Yasuhiro

    IPC分类号： G11B7/0045 ,  G11B7/125

    CPC分类号： G11B7/1263 ,  G11B7/0037 ,  G11B7/00454 ,  G11B7/00456 ,  G11B7/0062 ,  G11B20/10222 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2020/10898

    摘要： A mark having a length nT (n being an integer equal to or greater than 3 and T being a clock period) is formed by modulating irradiation laser power with three values of recording power Pw, erase power Pe, and bias power Pb (Pw Pe > Pb). Constant strength periods of the recording power Pw are set as A t T, A l T, ... , and A m T and constant strength periods of the bias power Pb are set as B t T, B l T, ..., B m T, and CT (C = -1 to 3). The application of laser is divided into pulses in order of A t T, B t T, A l T, E l T, ... , A m T, B m T, and CT (m = (n-k)/2, k=3 (if n is an odd number), or k=4 (if n is an even number)). (Here, the constant strength period A t of the recording power Pw for n=3, D=4 n≥5 (odd number), and n≥6 (even number) is set as A t3 , A t4 , A tod , and A tev , the constant strength period Bt of the bias power Pb for n=3, n=4, n≥5 (odd number), and n≥6 (even number) is set as B t3 , B t4 , B tod , and B tev , and then, At 3 +B t3 = A tod +B tod = A m +B m = 2T and At4+Bt4 = A tev +B tev = 3T).

    摘要翻译： 通过利用三个记录功率Pw，擦除功率Pe和偏置功率Pb（Pw Pe）来调制照射激光功率，形成具有长度nT（n是等于或大于3的整数，并且T是时钟周期）的标记 > Pb）。 将记录功率Pw的恒定强度周期设定为AtT，AlT，...，并且将偏置功率Pb的AmT和恒定强度周期设定为BtT，BlT，...，BmT和CT（C = -1 到3）。 激光的应用按照AtT，BtT，AlT，ElT，...，AmT，BmT和CT（m =（nk）/ 2，k = 3（如果n是奇数）的顺序被分成脉冲， 或者k = 4（如果n是偶数））。 （这里，对于n = 3，D =4n≥5（奇数），并且n≥6（偶数），记录功率Pw的恒定强度时段At被设置为At3，At4，Atod和Atev， 对于n = 3，n = 4，n≥5（奇数）和n≥6（偶数）的偏置功率Pb的恒定强度时段Bt设置为Bt3，Bt4，Btod和Btev，然后，At3 + Bt3 = Atod + Btod = Am + Bm = 2T和At4 + Bt4 = Atev + Btev = 3T）。

    Information-signal recording and reproducing apparatus
    25.
    发明公开
    Information-signal recording and reproducing apparatus 有权
    Vorrichtung zur Aufzeichnung und Wiedergabe von Informationssignalen

    公开(公告)号：EP1927986A2

    公开(公告)日：2008-06-04

    申请号：EP08003870.6

    申请日：2000-09-11

    申请人： VICTOR COMPANY OF JAPAN, LTD.

    发明人： Ueki, Yasuhiro

    IPC分类号： G11B20/10 ,  G11B27/00 ,  G11B27/32 ,  G11B33/12

    CPC分类号： H04N5/85 ,  G11B7/0079 ,  G11B20/10527 ,  G11B27/005 ,  G11B27/034 ,  G11B27/036 ,  G11B27/105 ,  G11B27/329 ,  G11B27/34 ,  G11B27/36 ,  G11B2020/10537 ,  G11B2020/10592 ,  G11B2020/1062 ,  G11B2020/10703 ,  G11B2020/10722 ,  G11B2020/10916 ,  G11B2020/10953 ,  G11B2020/10962 ,  G11B2220/216 ,  G11B2220/2562 ,  G11B2220/2575 ,  H04N9/8042 ,  H04N19/152 ,  H04N19/61

    摘要： A recording medium has first and second areas on which first and second information signals are recorded respectively. The first information signal has a size Ya. The second information signal has a size Yb. A head operates for reproducing the first and second information signals from the first and second areas of the recording medium and transmitting the reproduced first and second information signals on a time sharing basis and at a predetermined constant transfer rate Rp while moving between the first and second areas of the recording medium. A buffer memory operates for receiving the first and second information signals from the head at the predetermined constant transfer rate Rp, for temporarily storing the first and second information signals, and for outputting the first and second information signals at first and second transfer rates Ra and Rb respectively. The first and second transfer rates Ra and Rb are lower than the predetermined constant transfer rate Rp. The predetermined constant transfer rate Rp, the first transfer rate Ra, the second transfer rate Rb, the size Ya of the first information signal, the size Yb of the second information signal, a seek time Tab taken by the head to move from the first area to the second area of the recording medium, and a seek time Tba taken by the head to move from the second area to the first area of the recording medium are in a relation as follows: Ya + Yb ≧ Rp • Ra + Rb • Tab + Tba / Rp - Ra - Rb

    摘要翻译： 记录介质具有分别记录有第一和第二信息信号的第一和第二区域。 第一个信息信号的大小为Ya。 第二信息信号具有大小Yb。 头部用于从记录介质的第一和第二区域再现第一和第二信息信号，并且在时间共享的基础上以预定的恒定传送速率Rp发送再现的第一和第二信息信号，同时在第一和第二信号之间移动 记录介质的区域。 缓冲存储器用于以预定的恒定传送速率Rp从头接收第一和第二信息信号，用于临时存储第一和第二信息信号，并且用于以第一和第二传送速率Ra输出第一和第二信息信号， Rb。 第一和第二传递速率Ra和Rb低于预定的恒定传送速率Rp。 预定的恒定传送速率Rp，第一传送速率Ra，第二传送速率Rb，第一信息信号的尺寸Ya，第二信息信号的尺寸Yb，由头部从第一传送速率Rp， 区域到记录介质的第二区域，并且由头部从第二区域移动到记录介质的第一区域的寻道时间Tba的关系如下：Ya + Yb‰§Rp€¢Ra + Rb€¢Tab + Tba / Rp - Ra - Rb