Patents by Inventor YAKUN CAI

YAKUN CAI 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).

  • Audio and video transmission system
    Patent number: 11838577
    Abstract: An audio and video transmission system includes a multimedia device. The multimedia device includes a high-definition multimedia interface (HDMI) receiver, a first transfer circuit, and a first universal serial bus type C (USB-C) interface. The first transfer circuit is configured to transfer a first audio signal output by an audio channel pin of the HDMI receiver into a second audio signal in a universal serial bus (USB) interface format. The first USB-C interface is configured to transmit the second audio signal. The HDMI audio channel pin is an audio return channel (ARC) pin or an enhanced ARC pin.
    Type: Grant
    Filed: August 18, 2021
    Date of Patent: December 5, 2023
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventors: Yakun Cai, Dafei Li, Hong Chang
  • AUDIO AND VIDEO TRANSMISSION SYSTEM
    Publication number: 20220321948
    Abstract: An audio and video transmission system includes a multimedia device. The multimedia device includes a high-definition multimedia interface (HDMI) receiver, a first transfer circuit, and a first universal serial bus type C (USB-C) interface. The first transfer circuit is configured to transfer a first audio signal output by an audio channel pin of the HDMI receiver into a second audio signal in a universal serial bus (USB) interface format. The first USB-C interface is configured to transmit the second audio signal. The HDMI audio channel pin is an audio return channel (ARC) pin or an enhanced ARC pin.
    Type: Application
    Filed: August 18, 2021
    Publication date: October 6, 2022
    Inventors: YAKUN CAI, DAFEI LI, HONG CHANG