Patents by Inventor Horst Jouvenal

Horst Jouvenal 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 of checking the operability of a processor
    Patent number: 6158021
    Abstract: The proper functionality of a first processor is checked with a second processor. The second processor thereby provides the first processor with a start value and a computation rule. The first processor carries out the specified computation rule using the predetermined start value, and returns a result to the second processor. The second processor checks the result against a stored comparison result. The computation rule is defined such that the basic instructions which are used for programming the first processor are checked.
    Type: Grant
    Filed: August 20, 1998
    Date of Patent: December 5, 2000
    Assignee: Siemens Aktiengesellschaft
    Inventors: Herbert Ziegler, Richard Merl, Horst Jouvenal, Dietmar Peters, Johann Schmid
  • Method for checking a first processor performing functions by a data word received and stored, and modified after performing a given function, and monitored by a second processor
    Patent number: 6067586
    Abstract: The functionality of a first processor is checked with a second processor. A data word with a specified number of data bits is supplied to the first processor from a second processor at specified time intervals. Each data bit is assigned a function. Having processed a function, the first processor inverts the associated data bit and, at the end of a time slice, passes the data word to the second processor, which checks the transferred data word.
    Type: Grant
    Filed: August 20, 1998
    Date of Patent: May 23, 2000
    Assignee: Siemens Aktiengesellschaft
    Inventors: Herbert Ziegler, Richard Merl, Horst Jouvenal, Dietmar Peters, Johann Schmid
  • Method and device for controlling an internal combustion engine
    Patent number: 5999875
    Abstract: An internal combustion engine is provided with a first pedal position sensor and a second pedal position sensor measuring the position of an accelerator pedal. An emergency running mode of the internal combustion engine is actuated if a failure of either the first or the second pedal position sensor is detected. In the emergency running mode, a rise in the rotational speed or in the travel speed within a prescribed time interval is limited to a prescribed rise value.
    Type: Grant
    Filed: February 5, 1998
    Date of Patent: December 7, 1999
    Assignee: Siemens Aktiengesellschaft
    Inventors: Claus Bruedigam, Klaus Eppinger, Alfred Brandl, Horst Jouvenal