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    • 4. 发明公开
    • INFORMATION RECORDING MEDIUM, METHOD FOR RECORDING INFORMATION ON INFORMATION RECORDING MEDIUM, METHOD FOR REPRODUCING INFORMATION FROM INFORMATION RECORDING MEDIUM, AND METHOD FOR MANUFACTURING INFORMATION RECORDING MEDIUM
    • 信息记录介质,方法上记录信息记录介质,方法进行信息再生在信息记录介质及其制造方法信息记录介质的信息
    • EP2407967A1
    • 2012-01-18
    • EP10750528.1
    • 2010-03-05
    • Panasonic Corporation
    • The designation of the inventor has not yet been filed
    • G11B7/0045G11B7/125
    • G11B7/00736G11B7/00456G11B7/0062
    • The present invention provides a measure for getting read/write control information stored within a space of a predetermined size in a format that ensures compatibility with media of a lower order or an older generation even if the size of the read/write control information increases significantly as the storage densities of information storage media rise in the near future. On an information storage medium, a data sequence is writable as a combination of marks and spaces. The medium has at least one information storage layer, which has an information storage area to store information and a control information area for use to perform a read/write operation on the at least one information storage layer. The control information area stores at least one set of control information, which includes a first kind of write pulse information including information to be used as a reference value and a second kind of write pulse information including information to be used as an offset value. If the pulse width or pulse position of a write pulse is definable with a precision of 1T/n (where T is a channel clock pulse width and n is a positive integer), the size of the offset value is large enough to define at least a 2/n range.
    • 本发明提供的度量做了与较低阶的媒体或老一代确保兼容性存储在预定尺寸的空间内的格式得到的读/写控制信息,即使读出的大小/写控制信息显着增大 在不久的将来,信息存储介质上升的存储密度。 上的信息存储介质中,数据序列是可写成标记和间隔的组合。 该介质具有至少一个信息记录层,其在信息存储区域存储的信息和使用的控制信息区执行读/所述至少一个信息记录层上写入操作。 所述控制信息区存储的至少一个的控制信息,其包括:第一种写入脉冲信息包括信息组被用作参考值和第二种记录脉冲信息,包括将被用作对偏移值的信息。 如果一个写脉冲的脉冲宽度或脉冲位置是可定义与1T / n(其中T是一个信道时钟的脉冲宽度和n是正整数)的精度,偏移值的大小足够大以至少限定 一个2 / N的范围。
    • 5. 发明公开
    • Optical recording method and optical recording apparatus
    • 光记录方法和光记录装置
    • EP2299441A2
    • 2011-03-23
    • EP10197371.7
    • 2004-02-19
    • VICTOR COMPANY OF JAPAN, LTD.
    • Tabata, HiroshiYonehara, KazuoUeki, Yasuhiro
    • G11B7/0045G11B7/125
    • G11B7/1263G11B7/0037G11B7/00454G11B7/00456G11B7/0062G11B20/10222G11B2007/24314G11B2007/24316G11B2020/10898
    • 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).
    • 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)。