Patents by Inventor Suqing Li

Suqing Li 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).

  • Method and apparatus for key distribution for secure digital cinema presentations
    Patent number: 9002017
    Abstract: Key distribution within a digital cinema presentation facility (140) occurs according to a retrieval process (200, 300) that provides for automatic retrieval at a scheduled time. The process further includes redundant mechanisms to transfer the necessary keys, in different ways to enable theater personnel to obtain the required key in a variety of different ways.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: April 7, 2015
    Assignee: Thomson Licensing
    Inventors: Mark Leroy Walker, Suqing Li, William Gibbens Redmann