公开(公告)号：US11500650B2

公开(公告)日：2022-11-15

申请号：US17339299

申请日：2021-06-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianbo Xiang ,  Bo Zhang

IPC: G06F9/445 ,  G06F8/61 ,  G06F8/65 ,  G06F11/30 ,  G06F11/34 ,  G06F13/42

Abstract: An FPGA upgrade method is provided, including: delivering, by a host, an upgrade instruction to an FPGA; uninstalling a PCIe driver corresponding to the FPGA to let a status of the PCIe link be changed to link down; continuously monitoring, in a first expiration time, whether the status of the PCIe link is changed to link up; and if yes, reloading the PCIe driver. The method further includes: after the FPGA receives the upgrade instruction, continuously monitoring, in a second expiration time, whether the status of the PCIe link is changed to link down, if yes, loading the configuration data from the FPGA configuration memory for upgrade; and after upgrade is completed, negotiating, by the FPGA, with the host to restore the status of the PCIe link to link up that is used for reloading the PCIe driver upon detection by the host.

公开(公告)号：US20210211728A1

公开(公告)日：2021-07-08

申请号：US17206742

申请日：2021-03-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kangwen Luo ,  Qunyu Ye ,  Jianmin Huang ,  Jianbo Xiang

IPC: H04N19/625 ,  H04N19/176 ,  H04N19/18 ,  H04N19/159 ,  H04N19/124

Abstract: An image parallel compression method includes dividing data obtained after a discrete cosine transform (DCT) is performed on raw image data or data obtained after Huffman decoding is performed on image data of a joint photographic experts group (JPEG) format, or the like into several sub-blocks on a block basis, and then performing parallel operations such as intra-frame prediction, and arithmetic coding, to implement image parallel compression.