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    Recording method and apparatus using write pulse waveforms
    32.
    发明授权
    Recording method and apparatus using write pulse waveforms 有权
    使用写入脉冲波形的记录方法和装置

    公开(公告)号：US07551536B2

    公开(公告)日：2009-06-23

    申请号：US12180681

    申请日：2008-07-28

    申请人： Atsushi Nakamura ,  Shigeru Furumiya

    发明人： Atsushi Nakamura ,  Shigeru Furumiya

    IPC分类号： G11B7/0045

    CPC分类号： G11B7/0062

    摘要： A data recording method according to the present invention is a method for recording data as edge position information, including marks and spaces of multiple different lengths, on a storage medium by irradiating the storage medium with a pulsed energy beam. The method includes the steps of: (A) generating a write code sequence based on the data to be recorded; (B) determining a write pulse waveform, defining the power modulation of the energy beam, according to the code lengths of respective codes included in the write code sequence; and (C) modulating the power of the energy beam based on the write pulse waveform. If the shortest code length of the write code sequence is n (which is an integer equal to or greater than one), a write pulse waveform that has only one write pulse is assigned to recording mark making periods corresponding to codes with code lengths x of n, n+1 and n+2, and a write pulse waveform that has multiple write pulses Pw is assigned to recording mark making periods corresponding to codes with code lengths x of n+3 or more.

    摘要翻译： 根据本发明的数据记录方法是通过用脉冲能量束照射存储介质，将数据作为边缘位置信息（包括多个不同长度的标记和间隔）记录在存储介质上的方法。 该方法包括以下步骤：（A）基于要记录的数据生成写代码序列; （B）根据包含在写代码序列中的各个代码的码长，确定写入脉冲波形，定义能量束的功率调制; 和（C）基于写入脉冲波形调制能量束的功率。 如果写代码序列的最短代码长度为n（其为等于或大于1的整数），则仅具有一个写脉冲的写脉冲波形被分配给与代码长度为x的代码相对应的记录标记制作周期 n，n + 1和n + 2，并且具有多个写入脉冲Pw的写入脉冲波形被分配给与代码长度为x + 3或更大的代码相对应的记录标记制作周期。

    Comparator feedback peak detector
    33.
    发明授权
    Comparator feedback peak detector 有权
    比较器反馈峰值检测器

    公开(公告)号：US07535263B2

    公开(公告)日：2009-05-19

    申请号：US11543672

    申请日：2006-10-05

    申请人： Atsushi Nakamura

    发明人： Atsushi Nakamura

    IPC分类号： G01R19/00

    CPC分类号： G01R19/04

    摘要： There is disclosed a circuit and a process for detecting peak-to-peak voltage. The circuit comprises a first comparator having an output coupled to a first capacitor, a non-inverting input for receiving a high frequency AC waveform, and an inverting input, a second comparator having an output coupled to a second capacitor, and a first second input, an operational amplifier having a non-inverting input coupled to the inverting input of the first comparator, and an inverting input coupled to the first input. The process comprises charging a first capacitor when a high frequency AC waveform voltage is greater than a buffered voltage of the first capacitor, charging a second capacitor when an inverted buffered voltage of the second capacitor is greater than the high frequency AC waveform voltage, and outputting a voltage based on the buffered voltage of the first capacitor and the inverted buffered voltage of the second capacitor.

    摘要翻译： 公开了用于检测峰 - 峰电压的电路和处理。 该电路包括第一比较器，其具有耦合到第一电容器的输出端，用于接收高频AC波形的非反相输入端和反相输入端，具有耦合到第二电容器的输出的第二比较器和第一第二输入端 ，具有耦合到第一比较器的反相输入的非反相输入的运算放大器和耦合到第一输入的反相输入。 该过程包括当高频AC波形电压大于第一电容器的缓冲电压时对第一电容器充电，当第二电容器的反相缓冲电压大于高频AC波形电压时，对第二电容器充电，并且输出 基于第一电容器的缓冲电压和第二电容器的反相缓冲电压的电压。

    Recording method and media having marks and spaces with lengths defined by a predetermined modulation method
    36.
    发明授权
    Recording method and media having marks and spaces with lengths defined by a predetermined modulation method 有权
    记录方法和具有由预定调制方法定义的长度的标记和间隔的介质

    公开(公告)号：US07486605B2

    公开(公告)日：2009-02-03

    申请号：US11467130

    申请日：2006-08-24

    申请人： Mamoru Shoji ,  Kenji Koishi ,  Atsushi Nakamura ,  Takashi Ishida ,  Shuichi Tasaka

    发明人： Mamoru Shoji ,  Kenji Koishi ,  Atsushi Nakamura ,  Takashi Ishida ,  Shuichi Tasaka

    IPC分类号： G11B7/0045

    CPC分类号： G11B7/24085 ,  G11B7/00456 ,  G11B11/10506 ,  G11B11/1053

    摘要： The optical data recording method comprising the steps of: modulating data to be recorded, to generate a plurality of recording modulation codes; and emitting a pulse-like light beam to an optical disc, so that a plurality of recording marks and spaces which have lengths corresponding to the plurality of recording modulation codes are formed on the optical disc. In the optical data recording method, at least two of the plurality of recording marks comprises: a first pulse which is disposed at a front and forms a leading edge of the recording mark, a last pulse which is disposed at a backend and forms a trailing edge of the recording mark, and a multi-pulse train which is disposed between the first pulse and the last pulse and forms a center of the recording mark. The multi-pulse train has a pulse period longer than T which represents a reference period of the recording modulation code.

    摘要翻译： 该光学数据记录方法包括以下步骤：调制要记录的数据，以产生多个记录调制码; 并向光盘发射脉冲状光束，使得在光盘上形成具有与多个记录调制码对应的长度的多个记录标记和空间。 在光学数据记录方法中，多个记录标记中的至少两个记录标记包括：设置在前面并形成记录标记的前沿的第一脉冲，设置在后端并形成尾部的最后脉冲 记录标记的边缘，以及设置在第一脉冲和最后脉冲之间并形成记录标记的中心的多脉冲串。 多脉冲串具有长于T的脉冲周期，其表示记录调制码的参考周期。