Patents by Inventor Oliver Regenfelder

Oliver Regenfelder 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).

  • NFC DEVICE AND METHOD FOR WIRELESS POWER TRANSFER
    Publication number: 20240235274
    Abstract: The present disclosure relates to an NFC device configured for wireless power transfer, the NFC device comprising an antenna, a frontend circuit coupled to the antenna, a microcontroller coupled to the frontend circuit, the microcontroller comprising an analog-to-digital converter. The analog-to-digital converter is configured to receive an analog amplitude and/or phase signal from the frontend circuit, and to convert the analog signal into a digital signal. The microcontroller is configured to process the digital signal in order to detect a variation in the amplitude and/or phase of the analog signal, so as to detect a change of impedance within the field of the NFC device.
    Type: Application
    Filed: January 3, 2024
    Publication date: July 11, 2024
    Inventors: Bruno Tisserand, Oliver Regenfelder, Laurent Regnier, Martin Rampetsreiter, Christoph Chlestil
  • Method for distinguishing between active and passive contactless devices, and corresponding reader
    Patent number: 11416692
    Abstract: An embodiment method comprises transmitting a reader carrier signal from a contactless reader to a contactless device, receiving by the reader, a device modulated carrier signal from the device, the device modulated carrier signal having a carrier frequency, preferably turning off by the reader, the transmission of the reader carrier signal during reception of the device modulated carrier signal, and after having turned off the transmission of the reader carrier signal, determining by the reader the presence or the absence at the reader's antenna of a modulated carrier signal having at the reader's antenna the carrier frequency with a tolerance, without relying on the data content of the modulated carrier signal.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: August 16, 2022
    Assignee: STMICROELECTRONICS AUSTRIA GMBH
    Inventors: Gustavo Jose Henriques Patricio, Oliver Regenfelder, Ulrich Herrmann, Thomas Poetscher
  • METHOD FOR DISTINGUISHING BETWEEN ACTIVE AND PASSIVE CONTACTLESS DEVICES, AND CORRESPONDING READER
    Publication number: 20210374365
    Abstract: An embodiment method comprises transmitting a reader carrier signal from a contactless reader to a contactless device, receiving by the reader, a device modulated carrier signal from the device, the device modulated carrier signal having a carrier frequency, preferably turning off by the reader, the transmission of the reader carrier signal during reception of the device modulated carrier signal, and after having turned off the transmission of the reader carrier signal, determining by the reader the presence or the absence at the reader's antenna of a modulated carrier signal having at the reader's antenna the carrier frequency with a tolerance, without relying on the data content of the modulated carrier signal.
    Type: Application
    Filed: May 27, 2021
    Publication date: December 2, 2021
    Inventors: Gustavo Jose Henriques Patricio, Oliver Regenfelder, Ulrich Herrmann, Thomas Poetscher