Patents by Inventor Michael Sorg

Michael Sorg 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 for guaranteeing the integrity and authenticity of flashware for control devices
    Publication number: 20070028115
    Abstract: The invention relates to a simplified symmetrical, cryptographic method. The basis of this method is an authentication code. This authentication code is calculated in a secured area, referred to as a trust center, by concatenating the application program, referred to as the flashware, with a secret data string and calculating a hash value from the concatenated application program. This hash value is calculated here by means of the application program and by means of the secret data string. This hash value is the authentication code for the application program to be checked. The authentication code is checked in the microprocessor system or in the control unit in which the application program is to be used. For this purpose, a second, identical, secret data string is stored in the microprocessor system or the control unit. Firstly, the unencrypted application program and the authentication code are transmitted into the micro-processor system or into the control unit.
    Type: Application
    Filed: March 4, 2004
    Publication date: February 1, 2007
    Applicant: DaimlerChrysler AG
    Inventors: Heiko Kober, Jutta Schneider, Michael Sorg, Eva Wieser
  • Method and apparatus for accepting data
    Patent number: 6859718
    Abstract: In a method for entering program data into a control unit in a motor vehicle, the program data are provided by a data transfer point, via the following steps: a program data acceptance request is sent to the control unit, the control unit changes to a program data acceptance state, the program data are transmitted to the control unit, and the program data are accepted by the control unit. Before the control unit changes to the program data acceptance state, the control unit checks whether program data acceptance conditions prescribed for the control unit exist.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: February 22, 2005
    Assignee: DaimlerChrysler AG
    Inventors: Andreas Fritz, Bernd Oeffinger, Michael Sorg
  • Method and apparatus for accepting data
    Publication number: 20030225485
    Abstract: In a method for entering program data into a control unit in a motor vehicle, the program data are provided by a data transfer point, via the following steps: a program data acceptance request is sent to the control unit, the control unit changes to a program data acceptance state, the program data are transmitted to the control unit, and the program data are accepted by the control unit. Before the control unit changes to the program data acceptance state, the control unit checks whether program data acceptance conditions prescribed for the control unit exist.
    Type: Application
    Filed: March 24, 2003
    Publication date: December 4, 2003
    Inventors: Andreas Fritz, Bernd Oeffinger, Michael Sorg