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公开(公告)号:US06540397B2
公开(公告)日:2003-04-01
申请号:US09828693
申请日:2001-04-05
申请人: Jiro Yoshinari , Takuya Tsukagoshi , Hideki Hirata , Naoki Hayashida , Tokuyuki Honda , Mark E. McDonald , Michael V. Morelli , Andrew J. Daiber , Sanjoy Ghose , Lambertus Hesselink , Shunichi Nishimura , Sergei Sochava
发明人: Jiro Yoshinari , Takuya Tsukagoshi , Hideki Hirata , Naoki Hayashida , Tokuyuki Honda , Mark E. McDonald , Michael V. Morelli , Andrew J. Daiber , Sanjoy Ghose , Lambertus Hesselink , Shunichi Nishimura , Sergei Sochava
IPC分类号: G04B3700
CPC分类号: G11B7/0065 , G11B7/007 , G11B7/0938 , G11B7/24 , G11B7/243 , G11B7/244 , G11B7/2534 , G11B7/2595 , G11B2007/0013
摘要: An optical information medium comprising at least two data layers for bearing recorded information, and a servo layer for bearing tracking servo, information which is independently formed from the data layers; wherein the medium is used with a recording or reading system wherein a data beam for recording or reading the data in the data layer and a servo beam for reading the tracking servo information in the servo layer are used, and the servo layer is read by the servo beam that had passed through the data layer; and a filter layer is disposed between the data layer and the servo layer, and the filter layer exhibits higher absorption to the data beam than to the servo beam.
摘要翻译: 一种光信息介质,包括用于承载记录信息的至少两个数据层,以及用于承载跟踪伺服的伺服层,由数据层独立地形成的信息; 其中介质与记录或读取系统一起使用,其中使用用于记录或读取数据层中的数据的数据束和用于读取伺服层中的跟踪伺服信息的伺服光束,并且伺服层被读取 通过数据层的伺服光束; 并且在数据层和伺服层之间设置过滤层,并且过滤层对数据束的吸收比对伺服光束的吸收更高。
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公开(公告)号:US06574174B1
公开(公告)日:2003-06-03
申请号:US09549075
申请日:2000-04-15
申请人: James R. Amble , Lambrerrtus Hesselink , Tokyuki Honda , Mark E. McDonald , Michael V. Morelli , Andrew J. Daiber , Herman A. Ferrier , Sanjoy Ghose , Thomas A. Kridl , Matthew Lipson , Shunichi Nishimura , Sergei Sochava , LeRoy A. Volz
发明人: James R. Amble , Lambrerrtus Hesselink , Tokyuki Honda , Mark E. McDonald , Michael V. Morelli , Andrew J. Daiber , Herman A. Ferrier , Sanjoy Ghose , Thomas A. Kridl , Matthew Lipson , Shunichi Nishimura , Sergei Sochava , LeRoy A. Volz
IPC分类号: G11B700
CPC分类号: G11B7/0065 , G11B7/007 , G11B7/0938 , G11B7/24 , G11B7/2433 , G11B7/245 , G11B7/246 , G11B7/2472 , G11B7/252 , G11B7/2595 , G11B2007/0013
摘要: An optical information storage system using optical storage media including multiple data layers or stacks wherein each of the multiple data stacks has a storage density comparable to a conventional single layer optical disk. The optical data storage system comprises an optical medium having a single dedicated servo layer and multiple data stacks which each contain an embedded servo format, a servo laser beam positioned to maintain a first focus point on the dedicated servo reference layer, a read-write laser beam positioned to maintain a second focus point on one of the data stacks, a first, dedicated servo system which provides focus and tracking error correction according to error signals generated from the dedicated servo layer, and a second, embedded servo system which provides focus and tracking error correction according to error signals generated from the data stacks. The dedicated servo layer, in different embodiments of the invention, may be positioned either below or above the data stacks in the optical medium, or interposed between data stacks. The data stacks may comprise discrete physical data layers or “virtual” data layers defined by a format hologram. The servo and read-write lasers may differ in wavelength and/or polarization.
摘要翻译: 一种使用包括多个数据层或堆叠的光学存储介质的光学信息存储系统,其中多个数据堆栈中的每一个具有与常规单层光盘相当的存储密度。 光学数据存储系统包括具有单个专用伺服层的光学介质和各自包含嵌入式伺服格式的多个数据堆栈,定位成将第一焦点保持在专用伺服参考层上的伺服激光束,读写激光器 光束定位成在数据堆叠之一上保持第二焦点,第一专用伺服系统,其根据从专用伺服层产生的误差信号提供聚焦和跟踪误差校正;以及第二嵌入式伺服系统,其提供焦点和 根据从数据堆产生的误差信号进行跟踪误差校正。 在本发明的不同实施例中的专用伺服层可以位于光学介质中的数据堆的下方或上方,或者位于数据堆之间。 数据堆可以包括由格式全息图定义的离散物理数据层或“虚拟”数据层。 伺服和读写激光器的波长和/或极化可能不同。
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