Patents by Inventor Kai FRIEDRICH

Kai FRIEDRICH 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).

  • Electromagnetic decoupling of an antenna unit of a motor vehicle from an energy coupling device
    Patent number: 10384551
    Abstract: A motor vehicle having a vehicle body, which is formed at least in part from an electrically conductive material. An electrical system is arranged electrically insulated from the vehicle body and has a rectifier unit. An energy coupling device is arranged electrically insulated at the vehicle body for supplying electric energy for the electrical system. The energy coupling device has a coil for wireless magnetic coupling of an energy source that is external to the motor vehicle and provides an alternating magnetic field, wherein the coil is connected to the rectifier unit of the electrical system. An antenna unit is arranged at the vehicle body and is electrically insulated with respect to the electrical system. A decoupling device electromagnetically decouples the coil from the antenna unit.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: August 20, 2019
    Assignee: AUDI AG
    Inventors: Thomas Rinkleff, Kai Friedrich
  • ELECTROMAGNETIC DECOUPLING OF AN ANTENNA UNIT OF A MOTOR VEHICLE FROM AN ENERGY COUPLING DEVICE
    Publication number: 20180050595
    Abstract: A motor vehicle having a vehicle body, which is formed at least in part from an electrically conductive material. An electrical system is arranged electrically insulated from the vehicle body and has a rectifier unit. An energy coupling device is arranged electrically insulated at the vehicle body for supplying electric energy for the electrical system. The energy coupling device has a coil for wireless magnetic coupling of an energy source that is external to the motor vehicle and provides an alternating magnetic field, wherein the coil is connected to the rectifier unit of the electrical system. An antenna unit is arranged at the vehicle body and is electrically insulated with respect to the electrical system. A decoupling device electromagnetically decouples the coil from the antenna unit.
    Type: Application
    Filed: August 1, 2017
    Publication date: February 22, 2018
    Applicant: AUDI AG
    Inventors: Thomas RINKLEFF, Kai FRIEDRICH