Patents by Inventor Qi-Sheng Liu

Qi-Sheng Liu 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).

  • Testing platform for HDMI enhanced audio return channel
    Patent number: 11589036
    Abstract: A bidirectional media communication channel testing platform includes an HDMI testing device including a video input port and an audio output port; a plurality of media streaming devices, each including a video transmission channel and an audio return channel; and a bidirectional switch including a video path and an audio path. The video path is configured to selectively couple the video input port of the HDMI testing device to a video transmission channel of a selected one of the plurality of media streaming devices, and the audio path is configured to concurrently couple the audio output port of the HDMI testing device to the audio return channel of each of the plurality of media streaming devices, regardless of a switching state of the video path of the bidirectional switch.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: February 21, 2023
    Assignee: Google LLC
    Inventors: Che-Ming Lin, Qi-Sheng Liu, Weiming Liu
  • TESTING PLATFORM FOR HDMI ENHANCED AUDIO RETURN CHANNEL
    Publication number: 20220224882
    Abstract: A bidirectional media communication channel testing platform includes an HDMI testing device including a video input port and an audio output port; a plurality of media streaming devices, each including a video transmission channel and an audio return channel; and a bidirectional switch including a video path and an audio path. The video path is configured to selectively couple the video input port of the HDMI testing device to a video transmission channel of a selected one of the plurality of media streaming devices, and the audio path is configured to concurrently couple the audio output port of the HDMI testing device to the audio return channel of each of the plurality of media streaming devices, regardless of a switching state of the video path of the bidirectional switch.
    Type: Application
    Filed: October 25, 2021
    Publication date: July 14, 2022
    Inventors: Che-Ming Lin, Qi-Sheng Liu, Weiming Liu
  • Testing platform for HDMI enhanced audio return channel
    Patent number: 11159785
    Abstract: A bidirectional media communication channel testing platform includes an HDMI testing device including a video input port and an audio output port; a plurality of media streaming devices, each including a video transmission channel and an audio return channel; and a bidirectional switch including a video path and an audio path. The video path is configured to selectively couple the video input port of the HDMI testing device to a video transmission channel of a selected one of the plurality of media streaming devices, and the audio path is configured to concurrently couple the audio output port of the HDMI testing device to the audio return channel of each of the plurality of media streaming devices, regardless of a switching state of the video path of the bidirectional switch.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: October 26, 2021
    Assignee: Google LLC
    Inventors: Che-Ming Lin, Qi-Sheng Liu, Weiming Liu