Pseudo-random number generator
    201.
    发明申请
    Pseudo-random number generator 审中-公开
    伪随机数发生器

    公开(公告)号:US20010023423A1

    公开(公告)日:2001-09-20

    申请号:US09805265

    申请日:2001-03-13

    Inventor: Fabrice Marinet

    CPC classification number: H03K3/84

    Abstract: A pseudo-random number generator includes a first generator for producing a sawtooth waveform signal having a first frequency, and a second generator for producing a pulse signal having a second frequency. A sampling circuit samples the sawtooth waveform signal and the pulse signal for generating a sample signal of the sawtooth waveform signal at the second frequency. A coding circuit codes the amplitude of the sample signal to supply binary values. The pseudo-random number generator has applications in integrated circuits which are used in contact type or contactless IC cards.

    Abstract translation: 伪随机数发生器包括用于产生具有第一频率的锯齿波形信号的第一发生器和用于产生具有第二频率的脉冲信号的第二发生器。 采样电路对锯齿波形信号和脉冲信号进行采样,以产生第二频率的锯齿波形信号的采样信号。 编码电路对采样信号的幅度进行编码以提供二进制值。 伪随机数发生器在用于接触型或非接触式IC卡的集成电路中具有应用。

    Read-ahead electrically erasable and programmable serial memory
    202.
    发明申请
    Read-ahead electrically erasable and programmable serial memory 有权
    预读电可擦除和可编程的串行存储器

    公开(公告)号:US20010021117A1

    公开(公告)日:2001-09-13

    申请号:US09795657

    申请日:2001-02-28

    Abstract: A serial input/output memory is able to read data in the memory upon reception of a partial read address in which there are N least significant bits lacking to form a complete address. The read-ahead step includes: simultaneously reading the P first bits of M words of the memory having the same partial address; when the received address is complete, selecting the P first bits of the word designated by the complete address and delivering these bits at the serial output of the memory; reading P following bits of the word designated by the complete address during the delivery of P previous bits and delivering these bits at the serial output of the memory when the P previous bits are delivered.

    Abstract translation: 串行输入/输出存储器能够在接收到缺少形成完整地址的N个最低有效位的部分读取地址时读取存储器中的数据。 预读步骤包括:同时读取具有相同部分地址的存储器的M个字的P个第一位; 当接收到的地址完成时,选择由完整地址指定的字的P个第一位,并将这些位传送到存储器的串行输出; 在传送P个以前的位期间读取由完整地址指定的字的P后续位,并且当P个先前的位被递送时,将这些位递送到存储器的串行输出。

    Device for the detection of a high voltage
    203.
    发明申请
    Device for the detection of a high voltage 有权
    用于检测高电压的装置

    公开(公告)号:US20010015661A1

    公开(公告)日:2001-08-23

    申请号:US09727299

    申请日:2000-11-30

    Inventor: Richard Fournel

    CPC classification number: G05F3/247 G01R19/16519 G11C5/147

    Abstract: A device for detecting the application of a high voltage signal to an internal node of an integrated circuit includes a high-voltage divider circuit and a threshold detection circuit. The threshold detection circuit receives a signal given by the output of the divider circuit, and provides a threshold crossing detection signal at an output thereof based upon the signal crossing a threshold. The detection circuit is connected between the logic supply voltage and ground, and further includes a negative feedback loop. The negative feedback loop is connected to the output of the divider circuit to limit the voltage build-up of the high voltage signal at the output thereof after the crossing of the detection threshold by the signal.

    Abstract translation: 用于检测向集成电路的内部节点施加高电压信号的装置包括高压分压器电路和阈值检测电路。 阈值检测电路接收由分频电路的输出给出的信号,并且基于信号穿过阈值在其输出端提供阈值交叉检测信号。 检测电路连接在逻辑电源电压和地之间,并且还包括负反馈回路。 负反馈回路连接到除法器电路的输出端,以在检测阈值与信号交叉之后限制其输出处的高电压信号的电压积分。

    Electronic security component
    204.
    发明申请
    Electronic security component 有权
    电子安全部件

    公开(公告)号:US20010003540A1

    公开(公告)日:2001-06-14

    申请号:US09727300

    申请日:2000-11-30

    CPC classification number: H04L9/0891 H04L9/0631 H04L2209/04

    Abstract: In an electronic component including a two-way bus through which data elements travel between peripherals and a central processing unit at the rate of a clock signal, the central processing unit and at least one of the peripherals each includes a data encryption/decryption cell. Each data encryption/decryption cell uses the same secret key. The secret key is produced locally at each clock cycle in each cell from a random signal synchronous with the clock signal, and is applied to each of the cells by a one-way transmission line.

    Abstract translation: 在包括双向总线的电子部件中,数据元件通过该双向总线以时钟信号的速率在外围设备和中央处理单元之间行进,中央处理单元和至少一个外围设备都包括数据加密/解密单元。 每个数据加密/解密单元使用相同的秘密密钥。 秘密密钥是从与时钟信号同步的随机信号在每个小区中的每个时钟周期本地产生的,并且通过单向传输线应用于每个小区。

    Variable Gain Amplifier in a Receiving Chain
    205.
    发明申请

    公开(公告)号:US20190372539A1

    公开(公告)日:2019-12-05

    申请号:US16428413

    申请日:2019-05-31

    Inventor: Renald Boulestin

    Abstract: A variable gain amplifier includes a pair of amplification and recentering branches. Each branch includes: a resistive element of variable resistance configured to be driven by a variable gain controller; a digitally-driven variable current source configured to be driven by a compensation current driver unit; a first transistor comprising a gate terminal coupled to an input terminal of the variable gain amplifier, and a source terminal coupled to a first terminal of the resistive element; and a second transistor comprising a gate terminal coupled to a drain terminal of the first transistor, and a source terminal coupled to an output terminal of the variable gain amplifier.

    Electronic device for ESD protection
    208.
    发明授权
    Electronic device for ESD protection 有权
    用于ESD保护的电子设备

    公开(公告)号:US09401351B2

    公开(公告)日:2016-07-26

    申请号:US14610173

    申请日:2015-01-30

    Abstract: An electronic device includes a thyristor having an anode, a cathode, a first bipolar transistor disposed on the anode side. A second bipolar transistor is disposed on the cathode side. These two bipolar transistors are nested and connected between the anode and the cathode. A MOS transistor is coupled between the collector region and the emitter region of the second bipolar transistor. The transistor has a gate region connected to the cathode via a resistive semiconductor region incorporating at least a part of the base region of the second bipolar transistor.

    Abstract translation: 电子器件包括具有阳极,阴极,设置在阳极侧的第一双极晶体管的晶闸管。 第二双极晶体管设置在阴极侧。 这两个双极晶体管被嵌套并连接在阳极和阴极之间。 MOS晶体管耦合在第二双极晶体管的集电极区域和发射极区域之间。 晶体管具有通过并入第二双极晶体管的基极区的至少一部分的电阻半导体区连接到阴极的栅极区。

Patent Agency Ranking