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    • 8. 发明申请
    • Flash / Phase-Change Memory in Multi-Ring Topology Using Serial-Link Packet Interface
    • 使用串行链路分组接口的多环拓扑中的闪存/相变存储器
    • US20080016269A1
    • 2008-01-17
    • US11773827
    • 2007-07-05
    • David ChowCharles LeeFrank Yu
    • David ChowCharles LeeFrank Yu
    • G06F12/00
    • G06F13/1684G11C13/0004G11C16/102G11C2216/30
    • A multi-ring memory controller sends request packets to multiple rings of serial flash-memory chips. Each of the multiple rings has serial flash-memory chips with serial links in a uni-directional ring. Each serial flash-memory chip has a bypassing transceiver with a device ID checker that bypasses serial packets to a clock re-synchronizer and bypass logic for retransmission to the next device in the ring, or extracts the serial packet to the local device when an ID match occurs. Serial packets pass through all devices in the ring during one round-trip transaction from the controller. The average latency of one round is constant for all devices on the ring, reducing data-dependent performance, since the same packet latency occurs regardless of the data location on the ring. The serial links can be a Peripheral Component Interconnect (PCI) Express bus. Packets have modified-PCI-Express headers that define the packet type and data-payload length.
    • 多环存储器控制器将请求数据包发送到串行闪存芯片的多个环。 多个环中的每个环都具有串行闪存芯片,其具有单向环中的串行链路。 每个串行闪存芯片都具有一个旁路收发器,其中设备ID检查器将串行数据包绕过时钟重新同步器,并且旁路逻辑用于重传到环中的下一个设备,或者当ID为ID时将串行数据包提取给本地设备 匹配发生。 在来自控制器的一次往返事务期间,串行数据包通过环中的所有设备。 由于相同的数据包延迟发生,环路上的所有设备的平均延迟都是恒定的,从而降低了数据相关性能,无论环的数据位置如何。 串行链路可以是外围组件互连(PCI)Express总线。 数据包已经修改了PCI-Express头,定义了数据包类型和数据有效负载长度。
    • 9. 发明申请
    • Page and Block Management Algorithm for NAND Flash
    • NAND Flash的页面和块管理算法
    • US20070276988A1
    • 2007-11-29
    • US11779804
    • 2007-07-18
    • Jianjun LuoChris TsuCharles LeeDavid Chow
    • Jianjun LuoChris TsuCharles LeeDavid Chow
    • G06F13/28
    • G06F12/0246G06F12/0292G06F13/28G06F2212/1036G06F2212/7211
    • A flash controller is adapted to communicate with a host and the flash memory and including volatile memory configured to store a page-block table of logical addresses addressable by the physical addresses. The logical addresses are used by the controller to identify the blocks. The table has an address mapping table and a property value table, the property value table includes property values, each of the property values being increased in value every time a block is written up to a maximum value and being associated with a block of a predetermined group of blocks and indicative of the number of times a block has been written, the property values corresponding to the logical addresses of the address mapping table, wherein the maximum number the property values of the predetermined group of blocks take on is adjustably different than the maximum number the property values of another group of blocks.
    • 闪存控制器适于与主机和闪存进行通信,并且包括被配置为存储可通过物理地址寻址的逻辑地址的页块表的易失性存储器。 逻辑地址由控制器用于识别块。 该表具有地址映射表和属性值表,属性值表包括属性值,每当一个块写入最大值并且与预定的块相关联时,每个属性值都被增加, 指示块的写入次数的一组块,对应于地址映射表的逻辑地址的属性值,其中预定块组的属性值的最大数量可以与 最大数量的另一组块的属性值。