Patents by Inventor Paton John Lewis

Paton John Lewis 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 preventing an IDT-based security sandbox from causing a kernel panic when using a call gate
    Patent number: 8850577
    Abstract: A method and apparatus for preventing an IDT-based security sandbox from causing a kernel panic when using a call gate is disclosed. The method comprises receiving a request from an application to create a secure sandbox, wherein epilog code is mapped into the application upon receiving the request; enabling a call gate, wherein the call gate defines a location of call gate target code for enabling the secure sandbox; executing the epilog code to facilitate an interrupt disable instruction; jumping through the call gate; and enabling the secure sandbox.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: September 30, 2014
    Assignee: Adobe Systems Incorporated
    Inventor: Paton John Lewis
  • METHOD AND APPARATUS FOR PREVENTING AN IDT-BASED SECURITY SANDBOX FROM CAUSING A KERNEL PANIC WHEN USING A CALL GATE
    Publication number: 20140033304
    Abstract: A method and apparatus for preventing an IDT-based security sandbox from causing a kernel panic when using a call gate is disclosed. The method comprises receiving a request from an application to create a secure sandbox, wherein epilog code is mapped into the application upon receiving the request; enabling a call gate, wherein the call gate defines a location of call gate target code for enabling the secure sandbox; executing the epilog code to facilitate an interrupt disable instruction; jumping through the call gate; and enabling the secure sandbox.
    Type: Application
    Filed: July 24, 2012
    Publication date: January 30, 2014
    Applicant: Adobe Systems Inc.
    Inventor: Paton John Lewis