Patents by Inventor Dirk Romer

Dirk Romer 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: 6777974
    Abstract: The invention relates to an arrangement (10) and a method for adjusting the slope times of one or more drivers (90) in such a way that the adjustment is essentially independent of external conditions. The invention also relates to a driver circuit. The arrangement (10) is provided with a device (20) for detecting the time history of an output voltage that is output and supplied to a load (12) by means of the driver/s (90). The measured time values are converted into an output voltage value in a device (36) for converting the measured time history of the output voltage. Moreover, a device (40) for generating a reference voltage value is provided. The device (40) is connected to a device (60) for predetermining a desired slope time for the driver/s (90), whereby the slope time is essentially independent of external conditions.
    Type: Grant
    Filed: November 5, 2002
    Date of Patent: August 17, 2004
    Assignee: Infineon Technologies AG
    Inventors: Herbert Eichfeld, Ralf Klein, Dirk Romer, Christian Paulus
  • Patent number: 6531886
    Abstract: A device for reducing the electromagnetic emission in integrated circuits having driver stages reduces the electromagnetic emission of an integrated circuit without requiring an increase in the blocking capacitance in the process. This is achieved by combining driver stages which do not switch simultaneously to form driver groups, and special wiring of a plurality of blocking capacitors.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: March 11, 2003
    Assignee: Infineon Technologies AG
    Inventors: Herbert Eichfeld, Dirk Römer
  • Patent number: 6310494
    Abstract: The invention relates to a bus driver having an inverter for driving a preferably clocked signal on a bus line. In the event of a capacitive coupling of the bus line to at least one neighboring bus line, a number of secondary inverters corresponding to the number of capacitively coupled bus lines are connected in parallel with the inverter of the bus driver. A simple logic combination supplies the necessary activating signals for the parallel connection of the secondary inverters. As a result, an additional secondary inverter can be connected in when an opposite edge occurs on a neighboring line for the instant of the edge. The invention consequently enables the driver intensity to be adapted dynamically to the signals of neighboring capacitively coupled bus lines.
    Type: Grant
    Filed: February 1, 1999
    Date of Patent: October 30, 2001
    Assignee: Infineon Technologies AG
    Inventors: Thomas Ehben, Thomas Steinecke, Dirk Römer, Thomas Künemund