Patents by Inventor Yinxiang Pei

Yinxiang Pei has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for transcoding
    Patent number: 10567779
    Abstract: A method and an apparatus for transcoding are disclosed. The method includes obtaining an initial resolution of a media file; determining a first definition level and a second definition level corresponding to the media file; determining a first resolution corresponding to the first definition level and a second resolution corresponding to the second definition level; pre-coding the media file using a first preset rule to obtain a first pre-coding rate corresponding to the first definition level and a second pre-coding rate corresponding to the second definition level based on the first resolution and the second resolution; adjusting the first resolution and the second resolution if the first pre-coding rate is greater than the preset coding threshold; and transcoding the media file using the first preset rule based on the adjusted first resolution and the adjusted second resolution.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: February 18, 2020
    Assignee: Alibaba Group Holding Limited
    Inventors: Wenfei Jiang, Chen Meng, Yinxiang Pei
  • Method and Apparatus for Transcoding
    Publication number: 20180295372
    Abstract: A method and an apparatus for transcoding are disclosed. The method includes obtaining an initial resolution of a media file; determining a first definition level and a second definition level corresponding to the media file; determining a first resolution corresponding to the first definition level and a second resolution corresponding to the second definition level; pre-coding the media file using a first preset rule to obtain a first pre-coding rate corresponding to the first definition level and a second pre-coding rate corresponding to the second definition level based on the first resolution and the second resolution; adjusting the first resolution and the second resolution if the first pre-coding rate is greater than the preset coding threshold; and transcoding the media file using the first preset rule based on the adjusted first resolution and the adjusted second resolution.
    Type: Application
    Filed: June 8, 2018
    Publication date: October 11, 2018
    Inventors: Wenfei Jiang, Chen Meng, Yinxiang Pei