Patents by Inventor Timothy D. Lundeen

Timothy D. Lundeen 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).

  • Patent number: 10747510
    Abstract: Techniques to facilitate modifications to program execution in an application at runtime are disclosed herein. In at least one implementation, a copy of a code block associated with code is created. A flag associated with the copy of the code block is modified to mark the copy of the code block as having a native code version of the code. Metadata associated with the copy of the code block is modified to identify alternative code to run instead of the native code version of the code. A pointer associated with the code block is modified to point to a trampoline function. The trampoline function checks whether the code block is associated with a modification, and when the code block is associated with the modification, then the trampoline function calls the copy of the code block to invoke the alternative code by virtue of the flag and the metadata.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: August 18, 2020
    Assignee: Apptimize LLC
    Inventor: Timothy D. Lundeen
  • Patent number: 10671357
    Abstract: Techniques to facilitate previewing changes to visual elements of a mobile application at different display sizes are disclosed herein. In at least one implementation, screenshot capture instructions provided by an application development and optimization platform are received that indicate at least one requested display size at which to provide a view of the mobile application. An actual screenshot of the view of the mobile application is captured, and a virtual screenshot of the view is rendered by resizing the actual screenshot to the requested display size indicated in the screenshot capture instructions. The actual screenshot of the view and the virtual screenshot of the view rendered at the requested display size are transferred for delivery to the application development and optimization platform.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: June 2, 2020
    Assignee: Apptimize LLC
    Inventor: Timothy D. Lundeen
  • Patent number: 10628188
    Abstract: Techniques to facilitate prevention of just-in-time (JIT) translations of application functions are disclosed herein. In at least one implementation, a JIT translation function of an operating system is modified in memory to redirect the JIT translation function to execute alternative code when the JIT translation function is called. When the JIT translation function is called for an application function, the alternative code is executed to determine whether the application function has been modified. When the alternative code determines that the application function has been modified, the JIT translation function is prevented from translating the application function into a native machine code version. When the alternative code determines that the application function has not been modified, the JIT translation function is allowed to translate the application function into the native machine code version.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: April 21, 2020
    Assignee: Apptimize LLC
    Inventors: Jeff DiTullio, Michael Ryan Fenton, James Brandon Koppel, Timothy D. Lundeen
  • Patent number: 10606612
    Abstract: Techniques to bypass system context checks to facilitate opening shared-object libraries are disclosed herein. In at least one implementation, a copy of a header of a shared-object library loaded by a runtime system is created. The header of the shared-object library loaded by the runtime system is patched with code configured to call an open function, wherein the code patched into the header of the shared-object library executes and calls the open function from the shared-object library loaded by the runtime system, the call to the open function is recognized as within a context of the runtime system, and the shared-object library is allowed to be opened. A pointer to the shared-object library opened in memory is received, and the header of the shared-object library is restored to an original version using the copy of the header of the shared-object library.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: March 31, 2020
    Assignee: Apptimize LLC
    Inventors: Jeff DiTullio, Michael Ryan Fenton, James Brandon Koppel, Timothy D. Lundeen
  • Publication number: 20190065218
    Abstract: Techniques to bypass system context checks to facilitate opening shared-object libraries are disclosed herein. In at least one implementation, a copy of a header of a shared-object library loaded by a runtime system is created. The header of the shared-object library loaded by the runtime system is patched with code configured to call an open function, wherein the code patched into the header of the shared-object library executes and calls the open function from the shared-object library loaded by the runtime system, the call to the open function is recognized as within a context of the runtime system, and the shared-object library is allowed to be opened. A pointer to the shared-object library opened in memory is received, and the header of the shared-object library is restored to an original version using the copy of the header of the shared-object library.
    Type: Application
    Filed: August 24, 2018
    Publication date: February 28, 2019
    Inventors: Jeff DiTullio, Michael Ryan Fenton, James Brandon Koppel, Timothy D. Lundeen
  • Publication number: 20190065223
    Abstract: Techniques to facilitate prevention of just-in-time (JIT) translations of application functions are disclosed herein. In at least one implementation, a JIT translation function of an operating system is modified in memory to redirect the JIT translation function to execute alternative code when the JIT translation function is called. When the JIT translation function is called for an application function, the alternative code is executed to determine whether the application function has been modified. When the alternative code determines that the application function has been modified, the JIT translation function is prevented from translating the application function into a native machine code version. When the alternative code determines that the application function has not been modified, the JIT translation function is allowed to translate the application function into the native machine code version.
    Type: Application
    Filed: August 24, 2018
    Publication date: February 28, 2019
    Inventors: Jeff DiTullio, Michael Ryan Fenton, James Brandon Koppel, Timothy D. Lundeen
  • Publication number: 20180349107
    Abstract: Techniques to facilitate previewing changes to visual elements of a mobile application at different display sizes are disclosed herein. In at least one implementation, screenshot capture instructions provided by an application development and optimization platform are received that indicate at least one requested display size at which to provide a view of the mobile application. An actual screenshot of the view of the mobile application is captured, and a virtual screenshot of the view is rendered by resizing the actual screenshot to the requested display size indicated in the screenshot capture instructions. The actual screenshot of the view and the virtual screenshot of the view rendered at the requested display size are transferred for delivery to the application development and optimization platform.
    Type: Application
    Filed: June 5, 2018
    Publication date: December 6, 2018
    Inventor: Timothy D. Lundeen