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    • 11. 发明申请
    • METHOD AND SYSTEM FOR MANAGING KEYS AND/OR RIGHTS OBJECTS
    • 管理对象和/或权利对象的方法和系统
    • WO2007094874A3
    • 2007-12-06
    • PCT/US2006060928
    • 2006-11-15
    • SANDISK CORPRASIZADE OKTAYQAWAMI BAHMANJOGAND-COULOMB FABRICECHANG ROBERT CSABET-SHARGHI FARSHID
    • RASIZADE OKTAYQAWAMI BAHMANJOGAND-COULOMB FABRICECHANG ROBERT CSABET-SHARGHI FARSHID
    • G06F21/10G06F21/78
    • G06F21/78G06F21/10
    • One or more rights objects (RO) files may be used for storing RO's preferably in the protected area available only to authenticated users. A RO navigation file is stored preferably in an unprotected public area containing status bits, where each status bit identifies whether a location in a RO file contains a valid RO or not. Preferably, there is a one-to-one correspondence between the location for a RO in a RO file and a location in the RO navigation file for the status bit which identifies whether its corresponding location in the RO file contains a valid RO or not. Whether a particular location in a RO file contains a valid RO or not can be found by checking its corresponding status bit in the RO navigation file. By finding out whether a particular location in a RO file contains a valid RO or not in this manner, it is possible to delete ROs without having to go through an authentication process. The process of finding an empty slot in the RO file for storing a new RO is also simplified. This greatly increases the efficiency of RO management. A similar system may be used for management of content encryption/ encryption keys for protecting content files.
    • 可以使用一个或多个权限对象(RO)文件来存储RO,优选地在仅对经认证的用户可用的保护区域中。 RO导航文件优选地存储在包含状态位的未受保护的公共区域中,其中每个状态位识别RO文件中的位置是否包含有效的RO。 优选地,在RO文件中的RO的位置与用于状态位的RO导航文件中的位置之间存在一一对应关系,该状态位标识其在RO文件中的相应位置是否包含有效的RO。 通过检查RO导航文件中相应的状态位,可以找到RO文件中的特定位置是否包含有效的RO。 通过查找RO文件中的特定位置是否包含有效的RO,以这种方式,可以删除RO而无需经过身份验证过程。 在RO文件中找到用于存储新的RO的空槽的过程也被简化。 这大大提高了RO管理的效率。 类似的系统可以用于管理用于保护内容文件的内容加密/加密密钥。
    • 12. 发明申请
    • METHOD AND SYSTEM FOR MANAGING PARTITIONS IN A STORAGE DEVICE
    • 用于管理存储设备中的分段的方法和系统
    • WO2007002866A2
    • 2007-01-04
    • PCT/US2006025467
    • 2006-06-28
    • SANDISK CORP
    • CHANG ROBERT CHOLTZMAN MICHAELSABET-SHARGHI FARSHIDMCAVOY PAULQAWAMI BAHMAN
    • G06F3/06
    • G06F3/0608G06F3/0644G06F3/0679
    • A mass storage memory system and a method for re-allocating memory partition space is provided. The storage system includes a memory controller with a microprocessor that is adapted to receive data via a logical interface from a host system; a first memory partition with a system area and a data area; and a second memory partition with a system area and a data area; wherein the memory controller re-allocates memory space from the second memory partition to the first memory partition that is either full or has reached a threshold value, by using a virtual block address for the system area and the data area such that the system area and the data area appear contiguous to the host system.
    • 提供了大容量存储存储器系统和用于重新分配存储器分区空间的方法。 存储系统包括具有微处理器的存储器控​​制器,其适于经由逻辑接口从主机系统接收数据; 具有系统区域和数据区域的第一存储器分区; 以及具有系统区域和数据区域的第二存储器分区; 其中所述存储器控制器通过使用所述系统区域和所述数据区域的虚拟块地址来将从所述第二存储器分区的存储器空间重新分配到已满或已经达到阈值的所述第一存储器分区,使得所述系统区域和 数据区域与主机系统相邻。
    • 15. 发明申请
    • METHOD AND APPARATUS FOR GROUPING PAGES WITHIN A BLOCK
    • 在块中分组页的方法和装置
    • WO2004040453A2
    • 2004-05-13
    • PCT/US0328047
    • 2003-09-10
    • SANDISK CORPCHANG ROBERT CQAWAMI BAHMANSABET-SHARGHI FARSHID
    • CHANG ROBERT CQAWAMI BAHMANSABET-SHARGHI FARSHID
    • G06F12/00G06F12/02
    • G06F12/0246
    • Methods and apparatus for efficiently enabling pages within a block to be accessed are disclosed. According to one aspect of the present invention, a method for writing data into a first block in a non-volatile memory which includes pages that are grouped into groups which each include two or more pages involves determining when a first group is available to receive the data. When it is determined that the first group is available to receive the data, the data is written into a first page included in the first group. The method also includes determining when a second group is available to receive the data if it is determined that the first group is not available to receive the data, and writing the data into a second page included in the second group when it is determined that the second group is available to receive the data.
    • 公开了用于有效地启用要访问的块内的页面的方法和装置。 根据本发明的一个方面,一种将数据写入非易失性存储器中的第一块中的方法,所述非易失性存储器包括分组为分组的页面,每个组包括两个或多个页面,包括确定第一组何时可用于接收 数据。 当确定第一组可用于接收数据时,数据被写入包括在第一组中的第一页。 该方法还包括如果确定第一组不可用于接收数据,则确定第二组何时可用于接收数据,并且当确定第二组中确定第 第二组可以接收数据。