Patents by Inventor Matthias Ehrsam

Matthias Ehrsam 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: 12240329
    Abstract: Apparatus (102) for providing an operating energy (110) for an auxiliary drive (106) for an electric vehicle (100). The apparatus (102) has a battery interface (112) for connecting the apparatus (102) to a vehicle battery (104), a bidirectional inverter (114) having a first terminal for connecting the inverter (114) to the battery interface (112) and a second terminal. The inverter (114) is formed to convert a DC voltage into an AC voltage and back. A switch with a terminal which the switch to the second terminal, to an auxiliary interface (116) for connecting the apparatus (102) to the auxiliary drive (106) and to a charge interface (212) for feeding electrical energy (214) into the apparatus (102). The switch connects the charge interface to the switch and to the auxiliary interface (116). The apparatus (102) has a control device for providing the boost signal and the charge signal.
    Type: Grant
    Filed: October 18, 2021
    Date of Patent: March 4, 2025
    Assignee: ZF Friedrichshafen AG
    Inventors: Frank Seemann, Andre Ehrsam, Martin Mach, Zbynek Štepán, Vladimir Dvorak, Gabriel Scherer, Matthias Engicht
  • Publication number: 20250042255
    Abstract: A device for operating an electric auxiliary drive for an electric vehicle has a bidirectional inverter having a battery interface for electrically connecting to a vehicle battery and an auxiliary drive interface for electrically connecting to the auxiliary drive; a control arrangement having a first communications interface for connecting to the electric vehicle and a second communications interface for connecting to the auxiliary drive. The control arrangement inputs a configuration signal representing a present configuration of the electric vehicle and/or of the auxiliary drive via one of the communications interfaces. The control arrangement is formed to use the configuration signal to determine control parameters from a plurality of reference datasets with control parameters for different electric vehicles and different auxiliary drives, which control parameters are associated with respective configurations, and to control the inverter using the control parameters.
    Type: Application
    Filed: December 14, 2022
    Publication date: February 6, 2025
    Inventors: Vladimir DVORAK, Martin MACH, Zbynek ŠTEPÁN, Frank SEEMANN, Andre EHRSAM, Gabriel SCHERER, Tato Gervais AMANI, Matthias ENGICHT
  • Patent number: 8758240
    Abstract: A patient system including a first patient device for being carried by a patient and a second patient device arranged remotely from the first patient device, wherein a user interface of the first patient device is provided separately from the first patient device on the second patient device.
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: June 24, 2014
    Assignee: Roche Diagnostics International AG
    Inventors: Marcel Frikart, Markus Jungen, Matthias Ehrsam, Kurt Friedli
  • Patent number: 8533475
    Abstract: A method for authenticating a medical device and a remote electronic device may include generating a PIN code by one device, capturing the generated PIN code with the other device, checking authentication of the PIN code, which is based at least in part on the captured PIN code, by the one device, generating a strong key by the one device, sending the strong key encrypted to the other device, checking authentication of the sent strong key by the one device, and upon successful authentication, storing the strong key in a memory of the one device and the other device. The roles of the medical device and the remote electronic device may be reversed in the authenticating method. The authenticating method may be preceded by a pairing process and/or followed by a binding process.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: September 10, 2013
    Assignees: Roche Diagnostics Operations, Inc., Roche Diagnostics International AG
    Inventors: Marcel Frikart, Markus Oberli, Philippe Frikart, Raymond Strickland, Markus Jungen, Matthias Ehrsam, Christian Frey, Felix Lindner
  • Publication number: 20100115279
    Abstract: A method for authenticating a medical device and a remote electronic device may include generating a PIN code by one device, capturing the generated PIN code with the other device, checking authentication of the PIN code, which is based at least in part on the captured PIN code, by the one device, generating a strong key by the one device, sending the strong key encrypted to the other device, checking authentication of the sent strong key by the one device, and upon successful authentication, storing the strong key in a memory of the one device and the other device. The roles of the medical device and the remote electronic device may be reversed in the authenticating method. The authenticating method may be preceded by a pairing process and/or followed by a binding process.
    Type: Application
    Filed: December 7, 2009
    Publication date: May 6, 2010
    Inventors: Marcel Frikart, Markus Oberli, Philippe Frikart, Raymond Strickland, Markus Jungen, Matthias Ehrsam, Christian Frey
  • Publication number: 20070142767
    Abstract: A patient system including a first patient device for being carried by a patient and a second patient device arranged remotely from the first patient device, wherein a user interface of the first patient device is provided separately from the first patient device on the second patient device.
    Type: Application
    Filed: December 11, 2006
    Publication date: June 21, 2007
    Inventors: Marcel Frikart, Markus Jungen, Matthias Ehrsam, Kurt Friedli