APPARATUS FOR STEREO FILLING IN MULTICHANNEL CODING

    公开(公告)号:EP4421803A3

    公开(公告)日:2024-10-30

    申请号:EP24188661.3

    申请日:2017-02-14

    IPC分类号: G10L19/008 G10L19/028

    摘要: An apparatus for decoding an encoded multichannel signal of a current frame to obtain three or more current audio output channels is provided. A multichannel processor is adapted to select two decoded channels from three or more decoded channels depending on first multichannel parameters. Moreover, the multichannel processor is adapted to generate a first group of two or more processed channels based on said selected channels. A noise filling module is adapted to identify for at least one of the selected channels, one or more frequency bands, within which all spectral lines are quantized to zero, and to generate a mixing channel using, depending on side information, a proper subset of three or more previous audio output channels that have been decoded, and to fill the spectral lines of frequency bands, within which all spectral lines are quantized to zero, with noise generated using spectral lines of the mixing channel.

    AUTONOMOUS-TRAVEL-TYPE LAWN MOWER
    77.
    发明公开

    公开(公告)号:EP4393289A1

    公开(公告)日:2024-07-03

    申请号:EP21955009.2

    申请日:2021-08-25

    IPC分类号: A01D34/64

    CPC分类号: A01D34/64

    摘要: Provided is an autonomous lawn mower (1) including: a movable machine body (2) being movable through unmanned driving with moving devices (4); at least one lawn mowing work unit (3) mounted on the movable machine body (2); and a machine body cover (1A) that covers an upper surface and a peripheral surface of the movable machine body (2). The at least one lawn mowing work unit (3) includes: a cutting blade (17); a prime mover (15) configured to drive the cutting blade (17); at least one ground-contact member (23), which is located within an area (WB) between the moving devices (4) in a front-and-rear direction, and is configured to prevent contact of the cutting blade (17) with a ground surface (G); and an adjustment mechanism (28) configured to allow the lawn mowing work unit (3) to be moved upward and downward with respect to the movable machine body (2). The ground-contact member (23) and the cutting blade (17) are located inside the machine body cover (1A).