Patents by Inventor Gordon L. McVey

Gordon L. McVey 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).

  • Dynamic link library integrity checking for handheld medical devices
    Patent number: 8775877
    Abstract: A method of checking the integrity of a dynamic link library (DLL) file called by an application being executed on a handheld medical device is described. The method includes loading a DLL from a read only memory (ROM) to a random access memory (RAM) beginning at a fixed location in the RAM. The DLL includes a first routine for performing a safety critical function of the handheld medical device and a second routine for performing a cyclical redundancy check (CRC) once the DLL is loaded to the RAM. The method includes selectively executing the first routine from the RAM. The method includes selectively executing the second routine from the RAM including: calculating a check value based on the DLL; comparing the check value with a predetermined check value; and indicating that an error is present when the check value is different than the predetermined check value.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: July 8, 2014
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Gordon L. McVey, Marshall M. Parker, Richard W. Wilson
  • DYNAMIC LINK LIBRARY INTEGRITY CHECKING FOR HANDHELD MEDICAL DEVICES
    Publication number: 20130173968
    Abstract: A method of checking the integrity of a dynamic link library (DLL) file called by an application being executed on a handheld medical device is described. The method includes loading a DLL from a read only memory (ROM) to a random access memory (RAM) beginning at a fixed location in the RAM. The DLL includes a first routine for performing a safety critical function of the handheld medical device and a second routine for performing a cyclical redundancy check (CRC) once the DLL is loaded to the RAM. The method includes selectively executing the first routine from the RAM. The method includes selectively executing the second routine from the RAM including: calculating a check value based on the DLL; comparing the check value with a predetermined check value; and indicating that an error is present when the check value is different than the predetermined check value.
    Type: Application
    Filed: December 28, 2011
    Publication date: July 4, 2013
    Applicant: ROCHE DIAGNOSTICS OPERATIONS, INC.
    Inventors: Gordon L. McVey, Marshall M. Parker, Richard W. Wilson