Patents by Inventor Daniel J. Alton

Daniel J. Alton 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).

  • Composite variable light attenuator
    Patent number: 9442293
    Abstract: An optical stack includes a first variable element and a second variable element. The first variable element is configured to vary light transmission through the first variable element as a function of a first control signal. The second variable element is in series with the first variable element and is configured to vary light transmission through the second variable element as a function of a second control signal. A controller dynamically supplies the first control signal to the first variable element and supplies the second control signal to the second variable element.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: September 13, 2016
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Daniel J. Alton, Nathan Ackerman
  • COMPOSITE VARIABLE LIGHT ATTENUATOR
    Publication number: 20150323795
    Abstract: An optical stack includes a first variable element and a second variable element. The first variable element is configured to vary light transmission through the first variable element as a function of a first control signal. The second variable element is in series with the first variable element and is configured to vary light transmission through the second variable element as a function of a second control signal. A controller dynamically supplies the first control signal to the first variable element and supplies the second control signal to the second variable element.
    Type: Application
    Filed: May 6, 2014
    Publication date: November 12, 2015
    Inventors: Daniel J. Alton, Nathan Ackerman