Patents by Inventor Michael HERCHEL

Michael HERCHEL 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: 11990928
    Abstract: The invention relates to a method for measuring the specific absorption rate SAR of a mobile device under test DUT enabled for a combined LTE RF and 5G RF transmission, the method comprising the following steps: a.) Providing a mobile device under test DUT operable in LTE RF and 5G standard, b.) Setting the DUT in a mode to transmit with maximum power level according to the 5G standard, and at the same time transmitting with lower power level of LTE RF standard, c.) Performing a SAR scan and measuring the 5G signal, without taking into account any contribution from the LTE RF signal, d.) Setting the DUT in a mode to transmit with maximum power at maximum power in LTE RF standard, without transmitting according to the 5G standard, e.) Performing a SAR scan and measuring the LTE RF standard signal, f.) Combining the results of step c.) and e.) in order obtain a combined SAR value.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: May 21, 2024
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Benoit Derat, Michael Herchel, Christian Dobmeier
  • Publication number: 20210080523
    Abstract: The invention relates to a method for measuring the specific absorption rate SAR of a mobile device under test DUT enabled for a combined LTE RF and 5G RF transmission, the method comprising the following steps: a.) Providing a mobile device under test DUT operable in LTE RF and 5G standard, b.) Setting the DUT in a mode to transmit with maximum power level according to the 5G standard, and at the same time transmitting with lower power level of LTE RF standard, c.) Performing a SAR scan and measuring the 5G signal, without taking into account any contribution from the LTE RF signal, d.) Setting the DUT in a mode to transmit with maximum power at maximum power in LTE RF standard, without transmitting according to the 5G standard, e.) Performing a SAR scan and measuring the LTE RF standard signal, f.) Combining the results of step c.) and e.) in order obtain a combined SAR value.
    Type: Application
    Filed: August 17, 2020
    Publication date: March 18, 2021
    Inventors: Benoit DERAT, Michael HERCHEL, Christian DOBMEIER