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    • 28. 发明授权
    • Modulation signal generator for producing original disc of optical disc
    • 用于生产光盘原盘的调制信号发生器
    • US07054244B2
    • 2006-05-30
    • US10240781
    • 2002-02-07
    • Toshihiko SennoAkiya SaitoToru AidaYoshinobu Usui
    • Toshihiko SennoAkiya SaitoToru AidaYoshinobu Usui
    • G11B7/28G11B7/004
    • G11B20/1426G11B7/261G11B20/10527G11B2020/1461
    • 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.
    • 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。
    • 29. 发明申请
    • READ-ONLY OPTICAL DISC MEDIUM AND METHOD OF MANUFACTURING SAME
    • 只读光盘及其制造方法
    • US20090080312A1
    • 2009-03-26
    • US12159009
    • 2007-11-08
    • Tetsuhiro SakamotoJun NakanoAkiya SaitoToshihiko SennoYoshinobu UsuiMakoto Tsukahara
    • Tetsuhiro SakamotoJun NakanoAkiya SaitoToshihiko SennoYoshinobu UsuiMakoto Tsukahara
    • G11B7/00G11B7/24B05D3/12B32B37/00
    • G11B7/00736G11B7/00451G11B7/263G11B7/268
    • At the stage where disc substrates are to be manufactured in mass production by using a stamper, a section where pits/lands are not formed is formed in advance as an additional information recording section among recording tracks formed by a recording data sequence of pits/lands. A metal alloy reflection film is coated on the information recording surface including such an additional information recording section 10. Then, thereafter, additional information is recorded in the additional information recording section 10 by forming hole marks 6 by erasing or decreasing a partial area of the metal alloy reflection film. The additional information is recorded in a partial area of recording tracks in the information recording area (the area where information is recorded by a recording data sequence of pits/lands, the area including a content area and a management area such as a lead-in). The hole marks 6 are formed as marks from which logic values that are the same as those of pits are obtained at the time of reproduction.
    • 在通过使用压模来批量生产盘基片的阶段,预先形成没有形成凹坑/平台的部分作为附加信息记录部分,在由凹坑/平台的记录数据序列形成的记录道中 。 金属合金反射膜涂覆在包括这样的附加信息记录部分10的信息记录表面上。然后,通过擦除或减少附加信息记录部分10的部分区域来形成孔标记6,将附加信息记录在附加信息记录部分10中。 金属合金反射膜。 附加信息被记录在信息记录区域中的记录轨道的部分区域中(通过凹坑/区域的记录数据序列记录信息的区域,包括内容区域的区域和诸如引入区域的管理区域 )。 孔标记6形成为在再现时获得与凹坑的逻辑值相同的逻辑值的标记。
    • 30. 发明授权
    • Signal shaping circuit
    • 信号整形电路
    • US07054238B2
    • 2006-05-30
    • US10240097
    • 2002-01-29
    • Jun SatoAkiya SaitoToru AidaYoshinobu Usui
    • Jun SatoAkiya SaitoToru AidaYoshinobu Usui
    • G11B7/00
    • G11B20/10425G11B7/00456G11B7/00458G11B7/005G11B7/261G11B20/10G11B20/10009G11B20/1426G11B2020/1461
    • The present invention relates to a signal shaping circuit which is capable of shaping a returning light signal of a modulated signal whose signal level and signal length are arbitrarily varied such that it can be demodulated. The shaped signal pattern generation circuit 15 has, in advance, variation pattern information with regard to a predetermined variation pattern to be applied on a returning light signal recorded therein. The counter 13 inputs a returning light signal, counts a signal length thereof and sends a count value to the shaped signal pattern generation circuit 15. An A/D conversion 14 detects a signal level of the returning light signal and sends the detected signal level to the shaped signal pattern generation circuit 15 in a similar way. The shaped signal pattern generation circuit 15 refers to the variation pattern information and calculates an optimum signal pattern corresponding to a signal length and a signal level of the inputted, returning light signal. The calculated shaped signal pattern is outputted to a shaped signal generation circuit 16. Based on the signal pattern, the shaped signal generation circuit 16 converts the returning light signal and generates an optimum shaped signal.
    • 信号整形电路技术领域本发明涉及一种信号整形电路,其能够对其信号电平和信号长度任意变化的调制信号的返回光信号进行整形,使得其可被解调。 成形信号图案生成电路15预先具有关于要记录在其中的返回光信号应用的预定变化图案的变化图案信息。 计数器13输入返回光信号,对其信号长度进行计数,并向成形信号图案生成电路15发送计数值。 A / D转换14检测返回光信号的信号电平,并以类似的方式将检测信号电平发送到成形信号模式产生电路15。 成形信号图案生成电路15参照变化图案信息,并计算与输入的返回光信号的信号长度和信号电平对应的最佳信号图案。 计算出的成形信号图案被输出到成形信号生成电路16。 成形信号生成电路16基于信号图案转换返回光信号,并生成最佳成形信号。