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1.发明授权Method and apparatus for detecting position of alternated land and groove of information recording medium 失效用于检测信息记录介质的交替焊盘和凹槽位置的方法和装置
公开(公告)号：US6091678A
公开(公告)日：2000-07-18
申请号：US2830
申请日：1998-01-05
申请人： Tetsuya Fushimi , Toru Kawashima , Hisataka Sugiyama , Hiroyuki Minamura , Yoshio Suzuki , Hisamitsu Tanaka
发明人： Tetsuya Fushimi , Toru Kawashima , Hisataka Sugiyama , Hiroyuki Minamura , Yoshio Suzuki , Hisamitsu Tanaka
CPC分类号： G11B7/005 , G11B7/007 , G11B7/00745 , G11B7/0901
摘要： For a disk of a land/groove scheme with land tracks and grooves appearing alternately, in order to enable stable and reliable reproduction of information as recorded on a disk by stably and reliably detecting a specific position at which a land track and groove change therebetween, a technique is employed for detecting the position whereat one land track is changed to a groove, or vice versa, by utilizing an HPP signal rather than an RF signal in cases where an optical head 103 attempts to reproduce certain information at the pit formation position of a disk 101. In addition, detect the polarity--positive or negative--of a pit signal appearing in the HPP signal, and then detect the position whereat the land track and groove change therebetween based on the position at which the order or sequence thereof changes, thereby permitting effectuation of optical head's tracking control and focus control by a method suitable for its respective parts.
摘要翻译： 对于具有交替出现的轨迹和凹槽的平台/凹槽方案的盘，为了通过稳定可靠地检测在其间的凹槽轨道和槽的变化的特定位置来使得能够稳定可靠地再现记录在盘上的信息， 在使用HPP信号而不是RF信号的情况下，采用一种技术来检测一条脊轨道改变为凹槽的位置，反之亦然。在光头103尝试在凹坑形成位置再现某些信息的情况下， 另外，检测出现在HPP信号中的凹坑信号的极性正或负，然后根据其顺序或顺序改变的位置来检测纹间和凹槽之间的位置。 从而可以通过适用于其各自部件的方法来实现光学头的跟踪控制和聚焦控制。
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公开(公告)号：US06850470B2
公开(公告)日：2005-02-01
申请号：US10214367
申请日：2002-08-08
IPC分类号： G11B7/0045 , G11B7/005 , G11B7/09 , G11B7/00
CPC分类号： G11B7/005 , G11B7/0045 , G11B7/0945
摘要： An optical disc apparatus and method for recording and reproducing information to/from an optical disc, including discrimination of the optical disc, reading control information in an un-recordable area formed in an inner periphery of the optical disc, conducting focus control based on a focus error signal in a recordable area formed outside of the un-recordable area, and determining an optimum offset value of the focus error signal in the recordable area. Further, adjustment in amplitude of a reproduced signal from an inner periphery of the recordable area is conducted, test-writing in the inner periphery of the recordable area is conducted, test-writing in an outer periphery of the recordable area is conducted, and adjustment in amplitude of a reproduced signal from the outer periphery of the recordable area is conducted. The respective operations are conducted sequentially so as to make the optical disc in a reproducible and recordable condition.
摘要翻译： 一种用于向/从光盘记录和再现信息的光盘装置和方法，包括识别光盘，在形成在光盘内周的不可记录区域中的读取控制信息，基于 在形成在不可记录区域之外的可记录区域中的聚焦误差信号，以及确定可记录区域中的聚焦误差信号的最佳偏移值。 此外，进行来自可记录区域的内周的再现信号的振幅的调整，进行可记录区域的内周的测试写入，进行可记录区域的外周的测试写入，以及调整 进行来自可记录区域的外周的再生信号的振幅。 相应的操作顺序进行，以使光盘处于可再现和可记录状态。
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公开(公告)号：US06438078B2
公开(公告)日：2002-08-20
申请号：US09968968
申请日：2001-10-03
IPC分类号： G11B700
CPC分类号： G11B7/005 , G11B7/0045 , G11B7/0945
摘要： An optical disc apparatus and method for recording and reproducing information to/from an optical disc, including discrimination of the optical disc, reading control information in an un-recordable area formed in an inner periphery of the optical disc, conducting focus control based on a focus error signal in a recordable area formed outside of the un-recordable area, and determining an optimum offset value of the focus error signal in the recordable area. Further, adjustment in amplitude of a reproduced signal from an inner periphery of the recordable area is conducted, test-writing in the inner periphery of the recordable area is conducted, test-writing in an outer periphery of the recordable area is conducted, and adjustment in amplitude of a reproduced signal from the outer periphery of the recordable area is conducted. The respective operations are conducted sequentially so as to make the optical disc in a reproducible and recordable condition.
摘要翻译： 一种用于向/从光盘记录和再现信息的光盘装置和方法，包括识别光盘，在形成在光盘内周的不可记录区域中的读取控制信息，基于 在形成在不可记录区域之外的可记录区域中的聚焦误差信号，以及确定可记录区域中的聚焦误差信号的最佳偏移值。 此外，进行来自可记录区域的内周的再现信号的振幅的调整，进行可记录区域的内周的测试写入，进行可记录区域的外周的测试写入，以及调整 进行来自可记录区域的外周的再生信号的振幅。 相应的操作顺序进行，以使光盘处于可再现和可记录状态。
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公开(公告)号：US06301210B1
公开(公告)日：2001-10-09
申请号：US09291216
申请日：1999-04-14
IPC分类号： G11B700
CPC分类号： G11B7/005 , G11B7/0045 , G11B7/0945
摘要： An optical disc apparatus having at least two optical condenser lens for recording and reproducing information of an optical disc, comprising: means for discriminating the optical disc; means for reading control information in a ROM area which is formed in an inner periphery of said optical disc; means for conducting focus control in a RAM area which is formed outside of said ROM area; means for conducting adjustment in amplitude of a reproduced signal from an inner periphery of said RAM area; means for conducting a pre-writing (a sample-writing); means for conducting test-writing in the inner periphery of said RAM area; means for conducting test-writing in an outer periphery of said RAM area; and means for conducting adjustment in amplitude of a reproduced signal from the outer periphery of said RAM area, wherein said means conducts the respective operations sequentially, thereby making said optical disc in reproducible and recorable condition, with a short time period and with a smooth confirmation operation.
摘要翻译： 一种具有用于记录和再现光盘信息的至少两个光学聚光透镜的光盘装置，包括：用于识别光盘的装置; 用于读取在所述光盘的内周形成的ROM区域中的控制信息的装置; 用于在形成在所述ROM区域外部的RAM区域中进行聚焦控制的装置; 用于从所述RAM区域的内周进行再现信号的振幅调整的装置; 进行预写（样本写作）的手段; 用于在所述RAM区域的内周进行测试写入的装置; 用于在所述RAM区域的外围进行测试写入的装置; 以及用于进行来自所述RAM区域的外围的再现信号的幅度调整的装置，其中所述装置依次进行各个操作，从而使所述光盘在可重现和可回收状态下以短时间段和平滑确认 操作。
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