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    Pressure sensor monolithically integrated and relative process of fabrication
    1.
    发明公开
    Pressure sensor monolithically integrated and relative process of fabrication 审中-公开
    单片集成压力传感器及其制造方法

    公开(公告)号：EP1215476A3

    公开(公告)日：2003-09-17

    申请号：EP01830759.5

    申请日：2001-12-12

    Applicant: STMicroelectronics S.r.l.

    Inventor： Coffa, Salvatore ,  Occhipinti, Luigi

    IPC: G01L9/06 ,  G01L9/00

    CPC classification number: B81C1/00182 ,  B81B2201/0257 ,  B81B2201/0264 ,  B81B2203/0127 ,  B81C2201/0109 ,  B81C2201/0115 ,  G01L9/0042

    Abstract: Monolithically integrated pressure sensors of outstanding quality and versatility are produced through micromechanical surface structures definition techniques. A microphonic cavity in the semiconductor substrate is monolithically formed by cutting by plasma etching the front side or the back side of the silicon wafer a plurality of trenches or holes deep enough to extend for at least part of its thickness into a purposely made doped buried layer of opposite type of conductivity of the substrate and of the epitaxial layer grown over it; electrochemically etching through such trenches, the silicon of the buried layer with an electrolytic solution suitable for selectively etching the doped silicon of said opposite type of conductivity, making the silicon of the buried layer porous; and oxidizing and leaching away the silicon so made porous. Preferably, the trenches or holes for accessing the doped buried layer are cut through the epitaxial layer and not through the rear of the monocrystalline silicon substrate thus avoiding the burden of precisely aligning the mask on the rear surface with the masks that are used on the front surface of the substrate. Moreover, the thickness of the substrate is normally much greater than that of the epitaxial layer and thus the need to cut relatively deep and narrow trenches requiring the use of special plasma etching equipment is avoided.

    Chaotic encryption
    2.
    发明公开
    Chaotic encryption 审中-公开
    ChaotischeVerschlüsselung

    公开(公告)号：EP1179912A1

    公开(公告)日：2002-02-13

    申请号：EP00830571.6

    申请日：2000-08-09

    Applicant: STMicroelectronics S.r.l.

    Inventor： Di Bernardo, Giovanni ,  La Rosa, Manuela ,  Di Cola, Eusebio ,  Occhipinti, Luigi

    IPC: H04L9/00

    CPC classification number: H04L9/001 ,  H04L2209/60

    Abstract: In order to protect the contents of an electronic document through an encryption system based on an initial confusing step in a scrambler and a subsequent diffusion step in a chaotic processor, both steps being of a chaotic type, initially (51) encryption keys (c j ) and an initial chaotic value (X 0 ) are acquired; input character strings (IN) are acquired (53); diffused character strings (s(t)) are calculated (54) using the input character strings, the encryption keys (C j ), and previous diffused character strings (s(t-j)). After a certain number of iterations, sets of diffused character strings (S j ) are added (63) to subsequent chaotic values (X) generated by a chaotic processor (61) to obtain encrypted words (X CR ). Decryption is obtained through two successive operations, wherein the encrypted words are added to chaotic values identical to the encryption values (X) and subtracted from previously decrypted words using an unscrambler element having a structure similar to that of the scrambler and using identical encryption keys.

    Abstract translation: 为了通过基于加扰器中的初始混淆步骤的加密系统和混沌处理器中的后续扩散步骤来保护电子文档的内容，这两个步骤是混沌类型，最初（51）加密密钥（cj） 并获取初始混沌值（X0）; 获取输入字符串（IN）（53）; 使用输入字符串，加密密钥（Cj）和先前的扩散字符串（s（t-j））来计算扩散字符串（s（t））（54）。 在一定次数的迭代之后，将混合字符串（Sj）的集合（63）添加到由混沌处理器（61）生成的后续混沌值（X）中以获得加密的字（XCR）。 通过两个连续操作获得解密，其中将加密的字添加到与加密值（X）相同的混沌值，并使用具有类似于加扰器的结构的解扰器元件并使用相同的加密密钥从先前解密的字中减去。

    Programmable analog array circuit
    3.
    发明公开
    Programmable analog array circuit 审中-公开
    程序分析Anordnung

    公开(公告)号：EP1170671A1

    公开(公告)日：2002-01-09

    申请号：EP00830467.7

    申请日：2000-07-04

    Applicant: STMicroelectronics S.r.l.

    Inventor： Arena, Paolo ,  Occhipinti, Luigi ,  Branciforte, Marco ,  Di Bernardo, Giovanni

    IPC: G06F17/13

    CPC classification number: G06F17/13

    Abstract: The invention relates to an integrated cellular network structure, being programmable to solve partial derivative differential equations in order to control a phenomenon of diffusion or a propagation of electric drive pulses for robot actuators. Advantageously, such structure comprises analog and digital portions interconnected with each other; the analog portion includes a matrix array (6) of analog cells (2) arranged to receive data from an I/O interface (7), and the digital portion includes first and second memory arrays (8,9) for storing a desired configuration and the initial state of such analog matrix array (6), respectively.

    Abstract translation: 本发明涉及一种集成的蜂窝网络结构，其可编程以解决偏微分方程，以便控制用于机器人致动器的电驱动脉冲的扩散现象或传播现象。 有利地，这种结构包括彼此互连的模拟和数字部分; 所述模拟部分包括布置成从I / O接口（7）接收数据的模拟单元（2）的矩阵（6），并且所述数字部分包括用于存储所需配置的第一和第二存储器阵列（8,9） 和这种模拟矩阵阵列（6）的初始状态。

    Method and circuit for generating and controlling the movement of an electro-mechanic multi-actuator system
    4.
    发明公开
    Method and circuit for generating and controlling the movement of an electro-mechanic multi-actuator system 有权
    电路，用于产生和控制具有多个致动器的机电系统的运动

    公开(公告)号：EP0997235A1

    公开(公告)日：2000-05-03

    申请号：EP98830658.5

    申请日：1998-10-30

    Applicant: STMicroelectronics S.r.l.

    Inventor： Arena, Paolo ,  Caponeto, Riccardo ,  Fortuna, Luigi ,  Occhipinti, Luigi

    IPC: B25J9/16 ,  B62D57/032

    CPC classification number: B62D57/032 ,  B25J9/1602 ,  B25J9/1615

    Abstract: The invention relates to a new method for the control of movement which takes its idea from the principles on which the movement of certain biological organisms are founded.
    The proposed approach also permits the development of robotic architecture equipped with a revolutionary analogic system of locomotion, inspired by biological walking.
    The circuital embodiment of such system of locomotion is made concrete with the possibility of circuitally implementing a model of equations of the reaction diffusion type capable of generating, for certain combinations of parameters, initial conditions and boundary conditions, signals of auto-wave or spatial pattern type for the control of movement.

    Abstract translation: 本发明涉及一种用于运动控制这需要从哪个某些生物体的运动是建立在原则的理念的新方法。 因此，所提出的方法允许配备了运动的革命性的类比系统，通过生物启发行走机器人构造的发展。 运动的搜索系统的circuital实施例是由混凝土制成与circuitally实施能够产生，为的参数，初始条件和边界条件，自动波或空间图案的信号的某些组合的反应扩散类型的方程的一个模型的可能性 键入移动的控制。

    High efficiency DC/DC converter.
    8.
    发明公开
    High efficiency DC/DC converter. 失效
    Gleichspannungswandler mit hohem Wirkungsgrad

    公开(公告)号：EP0933865A1

    公开(公告)日：1999-08-04

    申请号：EP97830740.3

    申请日：1997-12-31

    Applicant: STMicroelectronics S.r.l.

    Inventor： Criscione, Marcello ,  Occhipinti, Luigi

    IPC: H02M3/158

    CPC classification number: H02M3/158

    Abstract: A DC/DC conversion circuit, adapted to convert a DC input voltage (Vin) to a DC output voltage (Vout), employs a PNP type of bipolar power transistor (7) as a synchronous rectifier element, to allow power-on through a simplified control circuitry (5) capable of sensing, automatically and at a high speed, the difference of potential across the switch.
    This approach allows power to be transferred from the input to the output unilaterally, while automatically controlling the depth of saturation of the power transistor and regulating its base current.

    Abstract translation: 适用于将DC输入电压（Vin）转换为DC输出电压（Vout）的DC / DC转换电路采用PNP型双极功率晶体管（7）作为同步整流元件，以允许通过 简化的控制电路（5）能够自动和高速地感测开关两端的电位差。 这种方法允许功率从单向传输到输出，同时自动控制功率晶体管的饱和深度并调节其基极电流。

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