Anomaly detecting device, anomaly detecting system, and anomaly detecting method

    公开(公告)号:US11792219B2

    公开(公告)日:2023-10-17

    申请号:US17738837

    申请日:2022-05-06

    CPC classification number: H04L63/1425 H04L41/0681 H04L47/10 H04L63/1458

    Abstract: An anomaly detecting device includes a flow collector that collects an amount of flow communication traffic in each of two or more networks in an in-vehicle network system that including the two or more networks, the amount of flow communication traffic being information obtained by tallying an amount of communication traffic of one or more frames classified according to a predetermined rule that is based on header information of a network protocol; and an anomaly detector that calculates, based on the amount of flow communication traffic, an observed ratio indicating a ratio of respective amounts of communication traffic in the two or more networks and determines whether the two or more networks are anomalous based on the observed ratio calculated and a normal ratio indicating a ratio of respective amounts of communication traffic in the two or more networks in a normal state.

    Encoder, decoder, encoding method, and decoding method

    公开(公告)号:US11778178B2

    公开(公告)日:2023-10-03

    申请号:US17735938

    申请日:2022-05-03

    CPC classification number: H04N19/117 H04N19/176 H04N19/182 H04N19/186

    Abstract: An encoding method includes: changing values of luma pixels in a first block and a second block to filter a first boundary between the first block and the second block, using clipping such that change amounts of the respective values are within respective luma clip widths, the luma pixels in the first block and the second block being arranged along a first line across the first boundary; and changing values of chroma pixels in a third block and a fourth block to filter a second boundary between the third block and the fourth block, using clipping such that change amounts of the respective values are within respective chroma clip widths, the chroma pixels in the third block and the fourth block being arranged along a second line across the second boundary. The luma clip widths applied to the luma pixels are selected to be asymmetrical relative to the first boundary.

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