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    41.
    发明专利
    未知

    公开(公告)号：DE69736347T2

    公开(公告)日：2007-07-12

    申请号：DE69736347

    申请日：1997-05-09

    Applicant: ST MICROELECTRONICS SRL

    Inventor： MANCUSO MASSIMO ,  D ALTO VIVIANA ,  POLUZZI RINALDO ,  AIROLDI FABRIZIO

    IPC: H04N1/40 ,  H04N5/225 ,  H04N5/91 ,  H04N5/92

    Abstract: Digital photography apparatus (100), particularly a digital still camera, comprising means (110-125) for acquiring a digital image, compression means (130) for obtaining a compressed image, and a memory (135) for storing the compressed image, the apparatus also including processing means (140) for obtaining a processed image and corresponding processing parameters from the image acquired, the processing means (140) supplying as an output, in a first operative condition, the processed image to be compressed by the compression means (130) and, in a second operative condition, the image acquired to be compressed by the compression means (130) and the processing parameters to be stored in the memory (135).

    42.
    发明专利
    未知

    公开(公告)号：DE69522313T2

    公开(公告)日：2002-04-18

    申请号：DE69522313

    申请日：1995-04-28

    Applicant: ST MICROELECTRONICS SRL ,  CONS RIC MICROELETTRONICA

    Inventor： BRUNO DARIO ,  POLUZZI RINALDO ,  MANARESI NICOLO ,  FRANCHI ELEONORA

    IPC: G06N7/04 ,  G06G7/60

    Abstract: The analog processor of this invention can carry out processings independently of the operating temperature and process parameters, in a reliable manner and at high performance levels using fairly simple circuitry. To achieve this independence, the processor is basically implemented and integrated with MOS transistors, has both voltage inputs (AI) and outputs (OUT), and includes a biasing section (BIAS) which supplies voltage bias signals (VG), of which at least one is substantially the sum of a voltage proportional to the threshold voltage of the MOS transistors and a reference voltage. This reference voltage can be extracted from a reference potential which is stable to temperature and process parameters, for example that produced by a bandgap type of generator. A major feature of the processor according to the invention is the linearity of its input-output characteristic relative to that reference voltage. It follows that it may be advantageous to extract that reference voltage by division from a signal indicating the width of the input signal variation range, thereby to achieve compensation for or independence of variations of this range.

    43.
    发明专利
    未知

    公开(公告)号：DE69421377T2

    公开(公告)日：2000-03-23

    申请号：DE69421377

    申请日：1994-02-28

    Applicant: ST MICROELECTRONICS SRL

    Inventor： MANCUSO MASSIMO ,  POLUZZI RINALDO ,  RIZZOTTO GIANGUIDO

    IPC: H04N5/21 ,  G06T5/20 ,  H03H21/00 ,  H04N1/409

    Abstract: Filter achieving noise reduction and digital signal image edge exaltation comprising first and second noise reduction circuit means 2 and 3 designed to elect an image edge. Said first and second noise reduction circuit means 2 and 3 comprise each a first and second comparison element (S1,S2,S3,S4) whose input terminals are designed to receive separate digital signals of an image and an inferential circuit (C1,C2) connected to said comparison elements. Each inferential circuit (C1,C2) comprises a fuzzy logic unit designed to define activation levels (Vi) dependent upon signals generated by the comparison elements. The filter (1) comprises also a noise detection circuit (4) and an image edge detection circuit (6) both connected to the noise reduction circuit means (2,3) and designed to perform operations in accordance with fuzzy logic rules on the basis of activation levels (Vi) defined in the inferential circuits (C1,C2). The filter 1 also includes a noise reduction circuit (5) connected to the noise detection circuit (6) and designed to filter the digital image signals on the basis of the operations performed by the circuit (4). In the filter (1) is also included an image edge exalting circuit (7) connected to the noise reduction circuit (5) and to the image edge detection circuit (4) designed to perform on filtered digital image signals an image edge exaltation on the basis of the operations performed by the image edge detection circuit (6).

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