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    11.
    发明专利
    未知

    公开(公告)号：DE60322338D1

    公开(公告)日：2008-09-04

    申请号：DE60322338

    申请日：2003-04-07

    Applicant: ST MICROELECTRONICS SRL

    Inventor： KOCAREV LJUPCO ,  TASEV ZARKO ,  AMATO PAOLO ,  RIZZOTTO GIANGUIDO

    IPC: H04L9/00

    Abstract: An encryption process which is both secure and practical, does not require modular arithmetic, and therefore is very fast, and may be used for realizing a digital signature process, comprises the following steps: choosing preliminarily at least a private key and a set of permutable functions defined on a certain phase space for encrypting/decrypting messages, choosing a code for encoding messages to be sent in the form of a number belonging to the phase space, and wherein the set of permutable functions is composed of chaotic maps generated by a composite function of a first function, a second function and the inverse of the first function, the private key is defined by using the second function. It is possible to implement public-key encryption processes and related digital signature processes using chaotic maps by a computer program.

    13.
    发明专利
    未知

    公开(公告)号：DE69930100D1

    公开(公告)日：2006-04-27

    申请号：DE69930100

    申请日：1999-06-24

    Applicant: ST MICROELECTRONICS SRL

    Inventor： RIZZOTTO GIANGUIDO ,  CAPONETTO RICCARDO ,  DIAMANTE OLGA

    IPC: B60G17/015 ,  B60G17/018

    Abstract: A vehicle comprises at least one semiactive suspension (5) arranged between a vehicle body (2) and a wheel (4) and having a damping coefficient that can be varied in a controlled way by an actuator (14) governed by a control device (18). The control device comprises an accelerometric sensor (15) generating a vehicle body acceleration signal; a potentiometer (16) generating a suspension position signal; a signal conditioning unit (21) for the calculation of the vehicle body speed and the damping speed; a fuzzy control unit (23) which calculates the subsequent position of the actuator on the basis of the vehicle body speed and of the damping speed; and a driving unit (21) which generates a control signal (S1) for the actuator.

    14.
    发明专利
    未知

    公开(公告)号：DE69530566T2

    公开(公告)日：2004-03-25

    申请号：DE69530566

    申请日：1995-01-13

    Applicant: ST MICROELECTRONICS SRL

    Inventor： MANCUSO MASSIMO ,  MORETTI PAOLO ,  POLUZZI RINALDO ,  RIZZOTTO GIANGUIDO

    IPC: G06T7/60 ,  G06K9/46

    Abstract: A fuzzy method for the recognition of geometric shapes in images, the particularity whereof is that it comprises the following steps: recognition of at least one edge of a curve of an image; recognition of the gradient of the edge; correction of the gradient by virtue of first fuzzy means; and determination of the number of points that belong to the curve by virtue of second fuzzy means. The process according to the present invention is performed by a fuzzy device for the recognition of geometric shapes in images that comprises: an edge detector, adapted to recognize at least one edge of a curve of an image and adapted to recognize the gradient of the edge; a fuzzy gradient corrector, adapted to correct said gradient; a fuzzy vote attributor, adapted to determine the number of points that belong to the curve.

    16.
    发明专利
    未知

    公开(公告)号：DE69433225D1

    公开(公告)日：2003-11-13

    申请号：DE69433225

    申请日：1994-04-27

    Applicant: ST MICROELECTRONICS SRL ,  CONS RIC MICROELETTRONICA

    Inventor： MANCUSO MASSIMO ,  POLUZZI RINALDO ,  RIZZOTTO GIANGUIDO

    IPC: H04N5/92 ,  H04N5/44 ,  H04N9/80 ,  H04N11/20 ,  H04N1/00

    Abstract: A television signal scanning conversion device of the type comprising at least one filtering block (3) having a plurality of digital inputs (Pi, X) which receive through an interface (2) components (X, Pi) of an interlaced television signal comprises also at least one calculation block (CALC1) connected to the signal inputs and operating with fuzzy logic. Said calculation block is capable of executing a switch between at least two different interpolation procedures, to wit interfield and intrafield.

    17.
    发明专利
    未知

    公开(公告)号：DE69530566D1

    公开(公告)日：2003-06-05

    申请号：DE69530566

    申请日：1995-01-13

    Applicant: ST MICROELECTRONICS SRL

    Inventor： MANCUSO MASSIMO ,  MORETTI PAOLO ,  POLUZZI RINALDO ,  RIZZOTTO GIANGUIDO

    IPC: G06T7/60 ,  G06K9/46

    Abstract: A fuzzy method for the recognition of geometric shapes in images, the particularity whereof is that it comprises the following steps: recognition of at least one edge of a curve of an image; recognition of the gradient of the edge; correction of the gradient by virtue of first fuzzy means; and determination of the number of points that belong to the curve by virtue of second fuzzy means. The process according to the present invention is performed by a fuzzy device for the recognition of geometric shapes in images that comprises: an edge detector, adapted to recognize at least one edge of a curve of an image and adapted to recognize the gradient of the edge; a fuzzy gradient corrector, adapted to correct said gradient; a fuzzy vote attributor, adapted to determine the number of points that belong to the curve.

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