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53 条记录 (耗时 0.018 秒)

    Modulation signal generator for producing original disc of optical disc
    9.
    发明授权
    Modulation signal generator for producing original disc of optical disc 有权
    用于生产光盘原盘的调制信号发生器

    公开(公告)号：US07054244B2

    公开(公告)日：2006-05-30

    申请号：US10240781

    申请日：2002-02-07

    申请人： Toshihiko Senno ,  Akiya Saito ,  Toru Aida ,  Yoshinobu Usui

    发明人： Toshihiko Senno ,  Akiya Saito ,  Toru Aida ,  Yoshinobu Usui

    IPC分类号： G11B7/28 ,  G11B7/004

    CPC分类号： G11B20/1426 ,  G11B7/261 ,  G11B20/10527 ,  G11B2020/1461

    摘要： The present invention relates to a modulated signal generator capable of carrying out signal processing at a higher speed or capable of supporting a special format and a new format with ease. A modulation processing storing unit 130 has a modulation processing program required for producing an optical disc master 320 stored therein in advance. Information data recorded in an master optical disc 310 is reproduced by an information reproducing unit 110 and is outputted to a modulation controller 120. The modulation controller 120 carries out the signal modulation processing onto the reproduced information data in accordance with the signal modulation processing program so as to generate a data stream and stores the data stream in a modulated information storing unit 140 as necessary. The modulation controller 120 sends a data stream generated at that time or the data stream stored in the modulated information storing unit 140 to a modulated signal outputting unit 150, and the data stream is outputted to a laser beam recorder 200 by the modulated signal outputting unit 150 at a predetermined clock. The present invention can be applied in cases of producing optical discs such as CD, MD, DVD and the like.

    摘要翻译： 本发明涉及一种调制信号发生器，其能够以更高的速度进行信号处理或能够容易地支持特殊格式和新格式。 调制处理存储单元130具有预先生成存储在其中的光盘主机320所需的调制处理程序。 记录在主光盘310中的信息数据由信息再现单元110再现，并被输出到调制控制器120。 调制控制器120根据信号调制处理程序对再现的信息数据执行信号调制处理，以产生数据流，并根据需要将数据流存储在调制信息存储单元140中。 调制控制器120将此时生成的数据流或存储在调制信息存储单元140中的数据流发送到调制信号输出单元150，并且数据流由调制信号输出单元输出到激光束记录器200 150在预定时钟。 本发明可以应用于制造诸如CD，MD，DVD等光盘的情况。

    Data recording medium, data recording method, and apparatus
    10.
    发明授权
    Data recording medium, data recording method, and apparatus 失效
    数据记录介质，数据记录方法和装置

    公开(公告)号：US07030788B2

    公开(公告)日：2006-04-18

    申请号：US10479717

    申请日：2003-03-31

    申请人： Toru Aida ,  Toshihiko Senno

    发明人： Toru Aida ,  Toshihiko Senno

    IPC分类号： H03M7/00

    CPC分类号： G11B20/1426 ,  G11B2020/1457 ,  G11B2020/1461 ,  G11B2020/1469

    摘要： Output data of a multiplexer 11 is EFM-modulated by an EFM modulator 12. In the EFM modulation, merging bits that satisfy run length limit conditions Tmin=3 and Tmax=11 are selected. Among them, merging bits that converge DSV are selected. A run length controlling portion 13 detects a particular data pattern that causes DSV to increase as large as a data read error takes place and controls the EFM modulator 12 so that the run length limit conditions of the EFM are loosened. As a result, an increase of DSV is suppressed. Data is reproduced from a data recording medium on which the data has been recorded in such a manner and the reproduced data is decoded. The decoded data is re-encoded so as to record it to another recoding medium. When the data pattern is re-encoded, DSV increases. As a result, data cannot be correctly reproduced from the other recording medium. Consequently, a copying operation can be prevented.

    摘要翻译： 复用器11的输出数据由EFM调制器12进行EFM调制。在EFM调制中，选择满足游程长度限制条件Tmin = 3和Tmax = 11的合并位。 其中，选择合并DSV的合并位。 游程长度控制部分13检测导致DSV增加的特定数据模式，如数据读取错误发生的那样大，并且控制EFM调制器12，使得EFM的游程长度限制条件被松开。 结果，DSV的增加被抑制。 数据从已经以这种方式记录了数据的数据记录介质再现，并且再现的数据被解码。 解码的数据被重新编码，以便将其记录到另一记录介质。 当数据模式被重新编码时，DSV增加。 结果，数据不能从其他记录介质正确再现。 因此，可以防止复印操作。