会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 32. 发明授权
    • Single-chip multi-media card/secure digital (MMC/SD) controller reading power-on boot code from integrated flash memory for user storage
    • 单芯片多媒体卡/安全数字(MMC / SD)控制器从集成闪存读取上电启动代码,用于用户存储
    • US07865630B2
    • 2011-01-04
    • US12426378
    • 2009-04-20
    • I-Kang Frank YuAbraham C. MaCharles C. Lee
    • I-Kang Frank YuAbraham C. MaCharles C. Lee
    • G06F3/00G06F13/28G06F13/12G06F9/00
    • G06F13/28Y02D10/14
    • A Multi-Media Card/Secure Digital (MMC/SD) single-chip flash device contains a MMC/SD flash microcontroller and flash mass storage blocks containing flash memory arrays that are block-addressable rather than randomly-addressable. MMC/SD transactions from a host MMC/SD bus are read by a bus transceiver on the MMC/SD flash microcontroller. Various routines that execute on a CPU in the MMC/SD flash microcontroller are activated in response to commands in the MMC/SD transactions. A flash-memory controller in the MMC/SD flash microcontroller transfers data from the bus transceiver to the flash mass storage blocks for storage. Rather than boot from an internal ROM coupled to the CPU, a boot loader is transferred by DMA from the first page of the flash mass storage block to an internal RAM. The flash memory is automatically read from the first page at power-on. The CPU then executes the boot loader from the internal RAM to load the control program.
    • 多媒体卡/安全数字(MMC / SD)单芯片闪存设备包含一个MMC / SD闪存微控制器和闪存大容量存储块,其中包含可寻址的闪存阵列,而不是随机寻址。 来自主机MMC / SD总线的MMC / SD事务由MMC / SD闪存微控制器上的总线收发器读取。 响应于MMC / SD事务中的命令,激活在MMC / SD闪存单片机中的CPU上执行的各种例程。 MMC / SD闪存单片机中的闪存控制器将数据从总线收发器传输到闪存大容量存储块以进行存储。 不是从耦合到CPU的内部ROM引导,引导加载程序由DMA从闪存大容量存储块的第一页传输到内部RAM。 在上电时,闪存将从第一页自动读取。 CPU然后从内部RAM执行引导加载程序来加载控制程序。
    • 33. 发明授权
    • Chained DMA for low-power extended USB flash device without polling
    • 用于低功耗扩展USB闪存设备的链接DMA,无轮询
    • US07707321B2
    • 2010-04-27
    • US11928124
    • 2007-10-30
    • Charles C. LeeDavid Q. ChowAbraham C. MaFrank YuMing-Shiang ShenHorng-Yee Chou
    • Charles C. LeeDavid Q. ChowAbraham C. MaFrank YuMing-Shiang ShenHorng-Yee Chou
    • G06F3/00G06F13/38
    • G06F13/28Y02D10/14
    • An extended Universal-Serial Bus (EUSB) host has reduced loading by using radio frequency (RF) transceivers or direct wiring traces rather than a pair of legacy USB cables. The reduced loading opens the eye pattern. The EUSB device transfers internal data using chained Direct-Memory Access (DMA). Registers in a DMA controller point to a vector table that has vector entries, each pointing to a destination and a source. The source is a memory table for a memory group. The memory table has entries for several memory segments. Each memory-table entry has a pointer to a memory segment and a byte count for the segment. Once all bytes in the segment are transferred, a flag in the entry indicates when another memory segment follows within the memory group. When an END flag is read, then vector table is advanced to the next vector entry, and another memory group of memory segments processed.
    • 扩展的通用串行总线(EUSB)主机通过使用射频(RF)收发器或直接布线轨迹而不是一对传统的USB电缆减少了负载。 减少负荷打开眼睛图案。 EUSB设备使用链接的直接内存访问(DMA)传输内部数据。 DMA控制器中的寄存器指向具有向量条目的向量表,每个向量表指向一个目的地和一个源。 源是内存组的内存表。 内存表有几个内存段的条目。 每个存储表条目具有指向存储器段的指针和段的字节计数。 一旦片段中的所有字节都被传送,该条目中的标志表示在存储器组中跟随其他内存段的时间。 读取END标志时,向量表前进到下一个向量条目,并处理另一个内存段的内存组。
    • 38. 发明授权
    • Cell-downgrading and reference-voltage adjustment for a multi-bit-cell flash memory
    • 针对多位单元闪存的单元降级和参考电压调整
    • US07333364B2
    • 2008-02-19
    • US11737336
    • 2007-04-19
    • Frank YuCharles C. LeeAbraham C. MaMing-Shiang Shen
    • Frank YuCharles C. LeeAbraham C. MaMing-Shiang Shen
    • G11C16/06
    • G11C11/5621G11C11/5642G11C29/00G11C2211/5634G11C2211/5641
    • A flash memory has multi-level cells (MLC) that can each store multiple bits per cell. Blocks of cells can be downgraded to fewer bits/cell when errors occur, or for storing critical data such as boot code. The bits from a single MLC are partitioned among multiple pages to improve error correctability using Error Correction Code (ECC). An upper reference voltage is generated by a voltage reference generator in response to calibration registers that can be programmed to alter the upper reference voltage. A series of decreasing references are generated from the upper reference voltage and are compared to a bit-line voltage. Compare results are translated by translation logic that generates read data and over- and under-programming signals. Downgraded cells use the same truth table but generate fewer read data bits. Noise margins are asymmetrically improved by using the same sub-states for reading downgraded and full-density MLC cells.
    • 闪存具有多级单元(MLC),每个单元可以存储多个位。 当发生错误时,单元块可以降级到较少的位/单元,或用于存储关键数据(如引导代码)。 来自单个MLC的位在多个页面之间进行分区,以使用错误校正码(ECC)来提高错误的可校正性。 响应于校准寄存器,由参考电压发生器产生较高的参考电压,校准寄存器可编程为改变上参考电压。 从较高参考电压产生一系列减小的参考值,并将其与位线电压进行比较。 比较结果由翻译逻辑翻译,生成读取数据和编程过程中和编程不足的信号。 降级的单元格使用相同的真值表,但生成较少的读取数据位。 通过使用相同的子状态来读取降级和全密度MLC单元,噪声余量被不对称地改善。