Patents by Inventor ChungFeng GU

ChungFeng GU 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 connector and circuitry
    Patent number: 9955272
    Abstract: A device (10) for connection to an audio accessory (20) comprising: a jack socket (14) for connection to a jack plug (25) of the audio accessory (20), a ground connection to a first socket contact (428) which is positioned to mate with a ground return pole of the plug (25). The jack socket (14) comprises a second contact (432) also positioned to mate with the ground return pole of the plug (25). Driver amplifiers (416, 418) comprise an input coupled to the second contact (432) and are configured to superimpose a signal present at the second contact (432) onto received speaker signal. It may achieve reducing the crosstalk which could distort or blur the stereo image.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: April 24, 2018
    Assignee: Cirrus Logic, Inc.
    Inventors: Jonathan Taylor, ChungFeng Gu
  • AUDIO CONNECTOR AND CIRCUITRY
    Publication number: 20170150283
    Abstract: A device (10) for connection to an audio accessory (20) comprising: a jack socket (14) for connection to a jack plug (25) of the audio accessory (20), a ground connection to a first socket contact (428) which is positioned to mate with a ground return pole of the plug (25). The jack socket (14) comprises a second contact (432) also positioned to mate with the ground return pole of the plug (25). Driver amplifiers (416, 418) comprise an input coupled to the second contact (432) and are configured to superimpose a signal present at the second contact (432) onto received speaker signal. It may achieve reducing the crosstalk which could distort or blur the stereo image.
    Type: Application
    Filed: June 4, 2015
    Publication date: May 25, 2017
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventors: Jonathan TAYLOR, ChungFeng GU