Patents by Inventor Jay Liang

Jay Liang 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).

  • Patent number: 8644378
    Abstract: A digital video communication device is provided. The digital video communication device includes a transmitter providing a spread-spectrum video signal including a predetermined frequency spread value and a frequency ratio and a receiver receiving the spread-spectrum video signal. The receiver includes a frequency synthesizer, a free-running clock generator configured to generate a free-running clock signal, wherein the free-running clock signal is used as a reference clock signal input to the frequency synthesizer. The receiver further includes a digital control logic circuit configured to separate the frequency ratio from the spread-spectrum video signal, and a line buffer coupled to the digital control logic circuit and the frequency synthesizer, the line buffer adjusting the frequency ratio and sending the adjusted frequency ratio to the frequency synthesizer, wherein the frequency synthesizer combines the free-running clock signal and the adjusted frequency ratio, and outputs a de-spread clock signal.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: February 4, 2014
    Assignee: Synaptics Incorporated
    Inventors: Zhibing Liu, Jay Liang
  • Publication number: 20120093199
    Abstract: A digital video communication device is provided. The digital video communication device includes a transmitter providing a spread-spectrum video signal including a predetermined frequency spread value and a frequency ratio and a receiver receiving the spread-spectrum video signal. The receiver includes a frequency synthesizer, a free-running clock generator configured to generate a free-running clock signal, wherein the free-running clock signal is used as a reference clock signal input to the frequency synthesizer. The receiver further includes a digital control logic circuit configured to separate the frequency ratio from the spread-spectrum video signal, and a line buffer coupled to the digital control logic circuit and the frequency synthesizer, the line buffer adjusting the frequency ratio and sending the adjusted frequency ratio to the frequency synthesizer, wherein the frequency synthesizer combines the free-running clock signal and the adjusted frequency ratio, and outputs a de-spread clock signal.
    Type: Application
    Filed: October 15, 2010
    Publication date: April 19, 2012
    Inventors: ZHIBING LIU, Jay Liang
  • Publication number: 20120053709
    Abstract: System and method for implementing a self-adjusting audio clock in an audio receiver comprising an audio data buffer for buffering data received from a transmitter are described. In one embodiment, the system includes an audio clock recovery circuit for recovering an audio clock signal from a reference clock signal received from the transmitter, wherein the audio clock is provided to the audio data buffer for use in reading data therefrom. The system further includes an adjustment circuit for providing an adjustment signal to the audio clock recovery circuit in accordance with a status of the audio data buffer. Responsive to the status of the audio data buffer indicating that the audio data buffer is approaching overflow, the adjustment signal provided to the audio clock recovery circuit causes an increase in the frequency of the audio clock signal.
    Type: Application
    Filed: August 27, 2010
    Publication date: March 1, 2012
    Inventors: JANE ZHENG, Zhibing Liu, Jay Liang
  • Publication number: 20120050462
    Abstract: A method to provide 3D video display includes the steps of receiving 3D information from the auxiliary channel corresponding to a frame; and providing the 3D information to a user accessory having stereoscopic capabilities so that the user accessory operate according to the 3D information when the frame is displayed. Further provided is a video system to provide 3D video displays including a receiver to receive the 3D information corresponding to a frame from the auxiliary channel in a transmission link, and to provide the 3D information to a user accessory as the frame is displayed. A 3D video display setup is also provided including a video system as above; a receiver having a display; and a clock to synchronize the display with a user accessory; and a user accessory having stereoscopic capabilities.
    Type: Application
    Filed: August 25, 2010
    Publication date: March 1, 2012
    Inventors: Zhibing LIU, Jay Liang