Patents by Inventor Mengfu WANG

Mengfu WANG 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).

  • Publication number: 20240022775
    Abstract: A data transmission method and apparatus are provided, to improve security of audio-video data transmission. In this application, the source device performs identity authentication on and negotiate a key with a transmission device that needs to output audio-video data or perform transformation processing on a transmission path to the sink device, and generates a key distribution packet used to encrypt or decrypt an audio-video stream only for the transmission device that needs to output audio-video data or perform transformation processing. Another device on the transmission path cannot know the key and cannot perform decryption, so that transmission security of the audio-video stream can be improved. In addition, the source device centrally performs identity authentication and authorization control on other transmission devices that need to output the audio-video data or perform transformation processing.
    Type: Application
    Filed: September 26, 2023
    Publication date: January 18, 2024
    Inventors: Zhijian LIANG, Zhigui WEI, Mengfu WANG