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    • 5. 发明授权
    • Non-volatile memory having multiple erase operations
    • 具有多次擦除操作的非易失性存储器
    • US07581058B2
    • 2009-08-25
    • US11963913
    • 2007-12-24
    • Yoshinori TakaseKeiichi YoshidaTakashi HoriiAtsushi NozoeTakayuki TamuraTomoyuki FujisawaKen Matsubara
    • Yoshinori TakaseKeiichi YoshidaTakashi HoriiAtsushi NozoeTakayuki TamuraTomoyuki FujisawaKen Matsubara
    • G06F12/06
    • G06F12/0246G06F12/0893G06F2212/2022G06F2212/7203G11C16/06G11C16/10G11C16/26G11C2216/22
    • A non-volatile storage device (1) has non-volatile memory units (FARY0 to FARY3), buffer units (BMRY0 to BMRY3) and a control unit (CNT), and the control unit can control a first access processing between an outside and the buffer unit and a second access processing between the non-volatile memory unit and the buffer unit upon receipt of directives from the outside separately from each other. The control unit can independently carry out an access control over the non-volatile memory unit and the buffer unit in accordance with the directives sent from the outside, respectively. Therefore, it is possible to set up next write data to the buffer unit simultaneously with the erase operation of the non-volatile memory unit or to output once read storage information to the buffer unit at a high speed as in a cache memory operation in accordance with the directive sent from the outside. Consequently, it is possible to reduce the overhead of a data transfer for reading/writing data from/to the non-volatile storage device.
    • 非易失性存储设备(1)具有非易失性存储单元(FARY0至FARY3),缓冲单元(BMRY0至BMRY3)和控制单元(CNT)),控制单元可以控制外部和 所述缓冲器单元以及当从所述外部分别接收到指令时,所述非易失性存储器单元和所述缓冲器单元之间的第二访问处理。 控制单元可以分别根据从外部发送的指令独立地对非易失性存储器单元和缓冲单元执行访问控制。 因此,可以与非易失性存储器单元的擦除操作同时地将缓冲单元的下一个写入数据设置为缓冲单元,或者按照高速缓存存储器操作中的高速将高速存储信息一次性地输出到缓冲器单元 指令从外面发出。 因此,可以减少用于从/向非易失性存储装置读/写数据的数据传输的开销。
    • 9. 发明申请
    • Memory system and memory card
    • 内存系统和存储卡
    • US20050015539A1
    • 2005-01-20
    • US10500252
    • 2002-01-09
    • Takashi HoriiKeiichi YoshidaAtsushi Nozoe
    • Takashi HoriiKeiichi YoshidaAtsushi Nozoe
    • G06F12/00G06F12/06G06F13/16G11C7/10G11C16/02G11C16/10
    • G11C16/32G06F13/1647G11C7/1042G11C7/1045G11C16/10G11C2216/14
    • A memory system includes a plurality of nonvolatile memory chips (CHP1 and CHP2) each having a plurality of memory banks (BNK1 and BNK2) which can perform a memory operation independent of each other and a memory controller (5) which can control to access each of said nonvolatile memory chips. The memory controller can selectively instruct either a simultaneous writing operation or an interleave writing operation on a plurality of memory banks of the nonvolatile memory chips. Therefore, in the simultaneous writing operation, the writing operation which is much longer than the write setup time can be performed perfectly in parallel. In the interleave writing operation, the writing operation following the write setup can be performed so as to partially overlap the writing operation on another memory bank. As a result, the number of nonvolatile memory chips constructing the memory system of the high-speed writing operation can be made relatively small.
    • 存储器系统包括多个非易失性存储器芯片(CHP1和CHP2),每个非易失性存储器芯片具有可以执行彼此独立的存储器操作的多个存储器组(BNK1和BNK2)和可以控制访问每个存储器 的所述非易失性存储器芯片。 存储器控制器可以选择性地指示在非易失性存储器芯片的多个存储体上的同时写入操作或交错写入操作。 因此,在同时写入操作中,可以完全并行地执行比写入建立时间长得多的写入操作。 在交错写入操作中,可以执行写入设置之后的写入操作,以便部分地与另一个存储体上的写入操作重叠。 结果,可以使构成高速写入操作的存储器系统的非易失性存储器芯片的数量相对较小。
    • 10. 发明授权
    • Semiconductor memory device
    • 半导体存储器件
    • US5440511A
    • 1995-08-08
    • US210385
    • 1994-03-18
    • Hiroshi YamamotoKiyonori OguraTakashi Horii
    • Hiroshi YamamotoKiyonori OguraTakashi Horii
    • H03K5/1252G11C8/18G11C11/409H03K19/003G11C7/00
    • G11C8/18
    • A semiconductor memory device has a first control signal is externally input to an input buffer circuit. A second control signal output from the input buffer circuit is input to an internal circuit. The internal circuit comprises a memory cell array having a number of memory cells and peripheral circuits for writing and reading cell information in and from the memory cells, and the writing and reading operations are executed based on the second control signal. Read data output from the internal circuit is input to an output buffer, which outputs the read data as output data. Power from a common power supply is supplied to the input buffer circuit and the output buffer. A noise-remove signal generator, which is connected to the input buffer circuit, functions based on either one of the first control signal and the second control signal to generate a noise remove signal in synchronism with an output timing of the output data. A noise removing circuit removes noise from the second control signal based on the noise remove signal.
    • 半导体存储器件具有外部输入到输入缓冲器电路的第一控制信号。 从输入缓冲电路输出的第二控制信号输入到内部电路。 内部电路包括具有多个存储单元的存储单元阵列和用于在存储单元中写入和读取单元信息的外围电路,并且基于第二控制信号执行写入和读取操作。 从内部电路输出的读取数据输入到输出缓冲器,输出读出的数据作为输出数据。 来自公共电源的电源被提供给输入缓冲器电路和输出缓冲器。 连接到输入缓冲器电路的噪声消除信号发生器基于第一控制信号和第二控制信号中的任一个起作用,以与输出数据的输出定时同步地产生噪声去除信号。 噪声去除电路基于噪声消除信号从第二控制信号中去除噪声。