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    • 1. 发明授权
    • Semiconductor processing device and IC card
    • 半导体处理装置和IC卡
    • US08050085B2
    • 2011-11-01
    • US10521553
    • 2002-08-29
    • Masatoshi TakahashiTakanori YamazoeKozo KatayamaToshihiro TanakaYutaka ShinagawaHiroshi WataseTakeo KanaiNobutaka Nagasaki
    • Masatoshi TakahashiTakanori YamazoeKozo KatayamaToshihiro TanakaYutaka ShinagawaHiroshi WataseTakeo KanaiNobutaka Nagasaki
    • G11C7/10G11C11/40
    • G07F7/1008G06Q20/341G06Q20/40975G07F7/084G11C11/005G11C16/0425G11C16/0433G11C16/16
    • A semiconductor processing device according to the invention includes a first non-volatile memory (21) for erasing stored information on a first data length unit, a second non-volatile memory (22) for erasing stored information on a second data length unit, and a central processing unit (2), and capable of inputting/outputting encrypted data from/to an outside. The first non-volatile memory is used for storing an encryption key to be utilized for encrypting the data. The second non-volatile memory is used for storing a program to be processed by the central processing unit. The non-volatile memories to be utilized for storing the program and for storing the encryption key are separated from each other, and the data lengths of the erase units of information to be stored in the non-volatile memories are defined separately. Therefore, the stored information can efficiently be erased before the execution of a processing of writing the program, and the stored information can be erased corresponding to the data length of a necessary processing unit in the write of the encryption key to be utilized in the calculation processing of the CPU.
    • 根据本发明的半导体处理装置包括用于擦除第一数据长度单元上存储的信息的第一非易失性存储器(21),用于擦除第二数据长度单元上存储的信息的第二非易失性存储器(22),以及 中央处理单元(2),能够从/向外部输入/输出加密数据。 第一非易失性存储器用于存储要用于加密数据的加密密钥。 第二非易失性存储器用于存储要由中央处理单元处理的程序。 用于存储程序和用于存储加密密钥的非易失性存储器彼此分离,并且存储在非易失性存储器中的信息的擦除单元的数据长度被分开地定义。 因此,在执行写入程序的处理之前可以有效地擦除存储的信息,并且可以根据在计算中要使用的加密密钥的写入中的必要处理单元的数据长度来擦除存储的信息 处理CPU。
    • 4. 发明授权
    • Booster circuit
    • 增压电路
    • US07215179B2
    • 2007-05-08
    • US10535102
    • 2003-09-26
    • Takanori YamazoeTakeo Kanai
    • Takanori YamazoeTakeo Kanai
    • G05F1/10
    • G11C5/146G11C5/145H02M3/073H02M2001/009H02M2003/071H02M2003/075H02M2003/076
    • The present invention relates to a booster circuit of a non-volatile memory requiring a plus or minus high voltage equal to or higher than a power-supply voltage. The present invention can generate a high voltage of approximately 12 V even at a low power-supply voltage equal to or lower than 3 V and generate not only a plus high voltage but also a minus high voltage by the same circuit. Also, by combining a body-controlled type parallel charge pump, which is a booster circuit according to the present invention, with a serial-type charge pump, two types of high voltages can be efficiently generated and a reduction in chip areas can be achieved.
    • 本发明涉及一种非易失性存储器的升压电路,其需要等于或高于电源电压的正或负高电压。 本发明即使在等于或低于3V的低电源电压下也可产生大约12V的高电压,并且不仅通过相同电路产生正高电压而且产生负高电压。 此外,通过将根据本发明的升压电路的身体控制型并联电荷泵与串联型电荷泵组合,可以有效地产生两种类型的高电压,并且可以实现芯片面积的减少 。
    • 10. 发明申请
    • DATA PROCESSING DEVICE
    • 数据处理设备
    • US20080137429A1
    • 2008-06-12
    • US11971887
    • 2008-01-09
    • Masaaki TERASAWAYoshiki KawajiriTakanori Yamazoe
    • Masaaki TERASAWAYoshiki KawajiriTakanori Yamazoe
    • G11C16/06
    • G11C16/0466G11C16/08G11C16/10G11C16/32
    • A delay from the release of a low power consumption mode of nonvolatile memory to the restart of read operation is reduced. Nonvolatile memory which can electrically rewrite stored information has in well regions plural nonvolatile memory cell transistors having drain electrodes and source electrodes respectively coupled to bit lines and source lines and gate electrodes coupled to word lines and storing information based on a difference between threshold voltages to a word line select level in read operation, and the nonvolatile memory has a low power consumption mode. In the low power consumption mode, a second voltage lower than a circuit ground voltage and higher than a first negative voltage necessary for read operation is supplied to the well regions and word lines. When boost forming a rewriting negative voltage therein, a circuit node at a negative voltage is not the circuit ground voltage in the low power consumption mode.
    • 从非易失性存储器的低功耗模式的释放到读取操作的重新开始的延迟降低。 可以电重写存储的信息的非易失性存储器在阱区中具有多个非易失性存储单元晶体管,其具有分别耦合到位线和源极线的漏电极和源电极以及耦合到字线的栅电极,并且基于阈值电压之间的差存储信息 读操作中的字线选择电平,而非易失性存储器具有低功耗模式。 在低功耗模式中,将低于电路接地电压并高于读操作所需的第一负电压的第二电压提供给阱区和字线。 当升压形成重写负电压时,负电压的电路节点不是低功耗模式下的电路接地电压。