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    Controllable generator of chaotic signals, and its use in communication
    13.
    发明公开
    Controllable generator of chaotic signals, and its use in communication 有权
    Chaotische Signale verwendendes Kommunikationsverfahren

    公开(公告)号：EP1223718A1

    公开(公告)日：2002-07-17

    申请号：EP01830015.2

    申请日：2001-01-12

    Applicant: STMicroelectronics S.r.l.

    Inventor： Occhipinti, Luigi ,  Fortuna, Luigi ,  Rizzo, Alessandro ,  Frasca, Mattia

    IPC: H04L27/00

    CPC classification number: H04L27/001

    Abstract: A chaotic-signal generator comprises a set of elements (1 to 4) for generating signals, which are connected together according to a scheme of chaotic dynamics of signal generation. The connection scheme may advantageously correspond to the circuit generally referred to as Chua's circuit, in particular in its possible implementation as a cellular neural network (CNN). Interposed in the aforementioned connection scheme is at least one switch (5), such as a MOS transistor, the opening and closing of which causes the variation in the chaotic dynamics of signal generation. The opening and closing command signal (u(t)) applied to the aforesaid switch (5) may therefore be made to correspond to a modulating signal in view of transmission on a channel, such as a high-noise channel. In a particularly preferred application, the aforementioned modulating signal is a binary signal, and the aforementioned opening and closing command signal is constituted by a switching signal, the switching frequency of which is caused respectively to increase or decrease depending on the logic level assumed by the modulating signal.

    Abstract translation: 混沌信号发生器包括用于产生信号的一组元件（1至4），它们根据信号产生的混沌动力学方案连接在一起。 连接方案可以有利地对应于通常称为蔡氏电路的电路，特别是在作为细胞神经网络（CNN）的可能实现中。 在上述连接方案中插入至少一个开关（5），例如MOS晶体管，其开闭导致信号产生的混沌动力学的变化。 因此，应用于上述开关（5）的打开和关闭指令信号（u（t））可以考虑到诸如高噪声信道的信道上的传输而对应于调制信号。 在特别优选的应用中，前述的调制信号是二进制信号，上述的开闭指令信号由切换信号构成，该切换信号的切换频率分别根据由 调制信号。

    A system for the automatic analysis of images, such as DNA microarray images
    14.
    发明公开
    A system for the automatic analysis of images, such as DNA microarray images 有权
    Ein System zur automatischen Bildanalyse von DNA Mikroarrays

    公开(公告)号：EP1182602A1

    公开(公告)日：2002-02-27

    申请号：EP00830588.0

    申请日：2000-08-25

    Applicant: STMicroelectronics S.r.l.

    Inventor： Arena, Paolo, Uni. d. Studi di Catania-I.F.-Dees ,  Fortuna, Luigi ,  Lavorgna, Mario ,  Occhipinti, Luigi

    IPC: G06F19/00

    CPC classification number: G06T7/0012 ,  G06K9/00 ,  G06T2207/30072

    Abstract: The system can be used for the automatic analysis of images (I), comprising a matrix of spots, such as images of DNA microarrays after hybridisation. The system can be associated - and preferably integrated in a single monolithic component implementing VLSI CMOS technology - to a sensor (10) for acquiring said images (I). The system comprises a circuit (20) for processing the signals corresponding to the images (I), configured according to a cellular neural network (CNN) architecture for the parallel analogue processing of signals.

    Abstract translation: 该系统可用于图像（I）的自动分析，其包括斑点阵列，例如杂交后的DNA微阵列的图像。 该系统可以相关联并且优选地集成在实现VLSI CMOS技术的单个单片组件中，以用于获取所述图像（I）的传感器（10）。 该系统包括用于处理与根据用于信号的并行模拟处理的细胞神经网络（CNN）架构配置的图像（I）相对应的信号的电路（20）。

    Control of power transfer in a flyback converter by modulating the off-phase in function of the load
    15.
    发明公开
    Control of power transfer in a flyback converter by modulating the off-phase in function of the load 有权
    通过调节负载功能的关闭阶段来控制反激式转换器中的功率传输

    公开(公告)号：EP0993105A1

    公开(公告)日：2000-04-12

    申请号：EP98830591.8

    申请日：1998-10-07

    Applicant: STMicroelectronics S.r.l.

    Inventor： Lionetto, Antonio ,  Occhipinti, Luigi ,  Spampinato, Sergio Tommaso ,  Caponetto, Riccardo

    IPC: H02M3/335

    CPC classification number: H02M1/36 ,  H02M3/33523 ,  H02M2001/0032 ,  Y02B70/16

    Abstract: A method of controlling a flyback DC-DC converter, self-oscillating at steady state conditions, employing a transformer for storing and transferring energy to a load and having an auxiliary winding whose voltage, induced by the current flowing in the secondary winding of the transformer, is monitored to regulate the amount of energy being transferred by way of a primary control loop disabling and enabling the turning on of a power switch driving the primary winding of the transformer and to detect its the zero-crossing and consequently turn on the power switch for a new conduction and energy storage phase, the duration (T ON ) of which is established by a secondary control loop of the output voltage producing the turning off of the power switch for a new off phase (T OFF ), and comprising a fixed frequency oscillator of a frequency lower than the self-oscillating frequency of the converter for start-up charge transient of an output filter capacitor, wherein the power transferred from the primary circuit to the secondary circuit of the flyback transformer is controlled by introducing a delay on the turn-on instant of the power switch in respect to a turn-on command generated, during a self-oscillating functioning phase upon sensing a zero crossing event and during a fixed frequency functioning phase, upon a rising front of the signal generated by said oscillator, in function of input variables of the enabling-disabling primary control loop and of the secondary control loop, regardless of the mode of control.

    Abstract translation: 一种控制反激DC-DC转换器的方法，在稳态条件下自激振荡，采用变压器存储能量并将能量传递给负载，并具有辅助绕组，该辅助绕组的电压由流过变压器次级绕组的电流 被监控以调节通过主控制回路传输的能量的数量，从而禁用并启用驱动变压器的初级绕组的功率开关的导通并检测其过零点并因此导通功率开关 对于新的导通和储能阶段，其持续时间（TON）由输出电压的次级控制回路建立，产生关断新功率开关（TOFF）的功率开关，并且包括固定频率振荡器 的频率低于转换器的自激振荡频率以用于输出滤波电容器的启动充电瞬变，其中从p 回扫变压器的次级电路中的初级电路通过在功率开关的导通时刻相对于产生的导通命令在自激振荡功能阶段期间在感测到过零事件时引入延迟并且 在固定频率功能阶段期间，根据所述振荡器产生的信号的上升沿，根据所述启用禁用主控制回路和所述次级控制回路的输入变量，而不管所述控制模式如何。

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