Patents by Inventor Michael Andrew Kellett

Michael Andrew Kellett 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).

  • Light emission circuit
    Patent number: 9258064
    Abstract: Apparatus comprises first and second light sources driven respectively by second and third inverting amplifiers with feedback from the first and second light sources to provide signal content respectively on positive and negative phases of an input signal; and a bias control arrangement configured to measure a bias level of one of the light sources and to bias the second and third amplifiers based on the measured bias level.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: February 9, 2016
    Assignee: Iconic Sound Limited
    Inventors: Danielle Barnett, David Holmes, Michael Andrew Kellett