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).

  • Apparatus for increasing an input voltage for an electric vehicle, electric vehicle and method for operating an apparatus
    Patent number: 12103415
    Abstract: An apparatus for increasing an input voltage for an electric vehicle has an energy supply interface to a vehicle battery, a DC-DC converter and an inverter. The DC-DC converter has a first connection for connection to the energy supply interface and a second connection for connection to the inverter. The DC-DC converter is designed to supply an output voltage at the second connection in response to an amplifier signal, the output voltage being increased with respect to an input voltage applied to the first connection. The inverter has an inverter connection for connecting the inverter to the second connection and has at least one energization interface for energizing at least one unit coupled to the energization interface, the inverter converts a DC voltage applied to the inverter connection to an AC voltage and to supply same to the energization interface.
    Type: Grant
    Filed: April 19, 2022
    Date of Patent: October 1, 2024
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Zbynek Stepan, Frank Seemann, Andre Ehrsam, Martin Mach, Vladimir Dvorak, Gabriel Scherer, Tato Gervais Amani, Matthias Engicht
  • System with a portable patient device and external operating part
    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
  • Method for pairing and authenticating one or more medical devices and one or more remote electronic devices
    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
  • Method for pairing and authenticating one or more medical devices and one or more remote electronic devices
    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
  • System with A Portable Patient Device and External Operating Part
    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