VOLTAGE CONVERSION CIRCUIT, CONTROL METHOD, POWER SUPPLY DEVICE, AND STORAGE MEDIUM

    公开(公告)号:US20240356455A1

    公开(公告)日:2024-10-24

    申请号:US18579955

    申请日:2022-07-08

    CPC classification number: H02M7/217 H02M3/158

    Abstract: A voltage conversion circuit, a control method, a power supply device, and a storage medium are provided. The circuit may include a fourth switch module, a third switch module, a first switch module, a second switch module and a ground lead which are sequentially connected in series; a first capacitor connected to a first common terminal and a second common terminal respectively; a second capacitor connected to a power output terminal and a ground lead; a driving module configured to regulate an initial duty ratio of a driving signal for each of the first to fourth switch modules, based on a capacitor voltage of both ends of the first capacitor; and an inductor connected with a power input terminal and a third common terminal respectively, or connected with the third common terminal and the power output terminal respectively.

    VIRTUAL REALITY DISPLAY METHOD, DEVICE AND APPARATUS, AND COMPUTER STORAGE MEDIUM

    公开(公告)号:US20220026982A1

    公开(公告)日:2022-01-27

    申请号:US17311393

    申请日:2019-12-16

    Abstract: A virtual reality display method, device, apparatus and storage medium are provided. The method includes: acquiring multimedia data to be displayed and a visible region of a viewer on a curved display surface, wherein the visible region is obtained by projecting a visible range of the viewer to the curved display surface, and is not larger than a display area of the curved display surface; determining target curvatures of at least two positions in the visible region of the viewer, wherein in the target curvatures, target curvatures of different positions are related to a distance to a center of the visible region of the viewer; adjusting, based on the target curvatures of the at least two positions in the visible region, a curvature of a corresponding position on the curved display surface; and mapping the multimedia data to be displayed to the curved display surface having the adjusted curvature.

    DATA PROCESSING METHOD AND DEVICE, STORAGE MEDIUM AND ELECTRONIC DEVICE

    公开(公告)号:US20220253668A1

    公开(公告)日:2022-08-11

    申请号:US17597066

    申请日:2020-04-20

    Abstract: A data processing method and device, a storage medium and an electronic device are disclosed. The method includes: reading M*N feature map data of all input channels and weights of a preset number of output channels, here a value of M*N and a value of the preset number are respectively determined by preset Y*Y weights; inputting the read feature map data and the weights of the preset number of output channels into a multiply-add array of the preset number of output channels for a convolution calculation; here a mode of the convolution calculation includes: not performing the convolution calculation in a case that the feature map data or the weights of the output channels are zero, and selecting one from same values for the convolution calculation in a case that there are a plurality of feature map data with the same values; and outputting a result of the convolution calculation.

    IMAGE RECONSTRUCTION METHOD AND DEVICE, APPARATUS, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM

    公开(公告)号:US20220036506A1

    公开(公告)日:2022-02-03

    申请号:US17299557

    申请日:2019-12-20

    Abstract: An image reconstruction method, device and apparatus and non-transitory computer-readable storage medium are disclosed. The method may include: determining norms of convolution kernels of each convolutional layer of a deep neural network model; determining the convolution kernels with norms greater than or equal to a preset threshold in each convolutional layer to obtain a target convolution kernel set of each convolutional layer; processing an input image of each convolutional layer by using the convolution kernels in the target convolution kernel set of each convolutional layer respectively, to obtain a first image processing result; obtaining a second image processing result by performing interpolation on an initial image; and determining a fusion result according to the first image processing result and the second image processing result and reconstructing the initial image according to the fusion result.

    METHOD AND DEVICE FOR INVERSE QUANTIZATION AND INVERSE TRANSFORMATION AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM

    公开(公告)号:US20220014745A1

    公开(公告)日:2022-01-13

    申请号:US17295266

    申请日:2019-11-20

    Abstract: Provided are method and device for inverse quantization and inverse transformation and non-transitory computer-readable storage medium. The method includes: performing inverse quantization processing on input data; determining whether secondary inverse transform processing is necessary; performing, in response to determining that the secondary inverse transform processing is necessary, the secondary inverse transform processing on data obtained through the inverse quantization processing, first one-dimensional inverse transform control processing on data obtained through the secondary inverse transform processing, and second one-dimensional inverse transform control processing on data obtained through the first one-dimensional inverse transform control processing; and performing, in response to determining that the secondary inverse transform processing is unnecessary, first one-dimensional inverse transform control processing on the data obtained through the inverse quantization processing, and second one-dimensional inverse transform control processing on the data obtained through the first one-dimensional inverse transform control processing.

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