Patents by Inventor Detlef Böhler

Detlef Böhler 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).

  • Data transmission method, and tachograph system
    Patent number: 8484475
    Abstract: In a data transmission method for a tachograph system, digital messages are transmitted between a speed transmitter (MS) and a recording unit (RU). The digital messages contain a pair of keys including a public key (KMP, KRP) and a private key (KMS, KRS), as well as a certificate (ZM, ZR) derived from the respective pair of keys. The public keys (KMP, KRP) and the certificates (ZM, ZR) are mutually verified between the recording unit (RU) and the speed transmitter (MS). If the verification is positive, the speed transmitter (MS) detects sensor data, and a digital message is generated therefrom. In addition, the speed transmitter (MS) generates authentication data for the message in accordance with the pair of keys (KMP, KMS) thereof. The message and the authentication data are transmitted to the recording unit and are processed there in accordance with a validity of the authentication data verified by the recording unit (RU).
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: July 9, 2013
    Assignee: Continental Automotive GmbH
    Inventors: Detlef Böhler, Thomas Grill, Erwin Hess, Bernd Meyer, Horst Plankenhorn
  • Data Transmission Method, and Tachograph System
    Publication number: 20100322423
    Abstract: In a data transmission method for a tachograph system, digital messages are transmitted between a speed transmitter (MS) and a recording unit (RU). The digital messages contain a pair of keys including a public key (KMP, KRP) and a private key (KMS, KRS), as well as a certificate (ZM, ZR) derived from the respective pair of keys. The public keys (KMP, KRP) and the certificates (ZM, ZR) are mutually verified between the recording unit (RU) and the speed transmitter (MS). If the verification is positive, the speed transmitter (MS) detects sensor data, and a digital message is generated therefrom. In addition, the speed transmitter (MS) generates authentication data for the message in accordance with the pair of keys (KMP, KMS) thereof. The message and the authentication data are transmitted to the recording unit and are processed there in accordance with a validity of the authentication data verified by the recording unit (RU).
    Type: Application
    Filed: January 7, 2009
    Publication date: December 23, 2010
    Applicant: Continental Automotive GmbH
    Inventors: Detlef Boehler, Thomas Grill, Erwin Hess, Bernd Meyer, Horst Plankenhorn