Non-binary holograms for increased capacity
    4.
    发明公开
    Non-binary holograms for increased capacity 审中-公开
    NichtbinäreHologrammefürerhöhteKapazität

    公开(公告)号:EP2472513A1

    公开(公告)日:2012-07-04

    申请号:EP11194057.3

    申请日:2011-12-16

    摘要: Techniques are provided for increasing storage capacity in a holographic storage system. While typical holographic storage systems involve binary storage for each data position in a holographic disk, present techniques involve storing data such that more than two data levels may be recorded at different positions (66,68,70) in a data layer (60). In some embodiments, a recording beam directed to the disk may be adjusted to different power levels depending on the data level to be recorded. Furthermore, the recording time at a data position may be adjusted to increase the energy directed to the data position by increasing the amount of time the recording beam is impinged on the data position. Embodiments are suitable for different types of holographic storage, including dye-based medium.

    摘要翻译: 提供了用于增加全息存储系统中的存储容量的技术。 虽然典型的全息存储系统涉及全息盘中的每个数据位置的二进制存储,但是现有技术涉及存储数据,使得可以在数据层(60)中的不同位置(66,68,70)记录两个以上的数据级。 在一些实施例中,根据要记录的数据级别,可以将指向磁盘的记录光束调整到不同的功率电平。 此外,可以调整数据位置处的记录时间,以通过增加记录光束撞击在数据位置上的时间量来增加指向数据位置的能量。 实施例适用于不同类型的全息存储,包括基于染料的介质。