Patents by Inventor Christian Völkel

Christian Völkel 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).

  • Publication number: 20240088840
    Abstract: An electronic device may include wireless circuitry with a processor, a transceiver circuit, a front-end module, and an antenna. The front-end module may include amplifier circuitry such as a low noise amplifier for amplifying received radio-frequency signals. The amplifier circuitry may operation in different modes based on its operating environment. Accordingly, the amplifier circuitry may include multiple amplifying cascode stages coupled in parallel, some of which may be selectively enabled. The amplifier circuitry may include an intermodulation distortion suppression circuit coupled to an amplifying cascode stage and an n-path filter coupled to another amplifying cascode stage. One or more of these amplifier circuitry portions may be active depending on its operating mode.
    Type: Application
    Filed: July 26, 2023
    Publication date: March 14, 2024
    Inventors: Christian Tanzer, Julian Zuber, Matthias Voelkel, Dominic Koehler, Harald Pretl, Joonhoi Hur, Rastislav Vazny
  • Patent number: 7328613
    Abstract: The invention relates to a profile element which can be flexibly connected to other adjacent profile elements in order to form a roller blind. The profile element includes a front side and a rear side which are arranged at a distance from each other and at least one cavity is arranged therebetween, wherein an opening made therein leads into the front wall thereof and a sound-absorbing material is arranged therein. The aim of the invention is to improve the profile element in the above-mentioned manner, especially with respect to the sound-insulating properties thereof. The inventive profile element can be produced by virtue of the fact that the sound-absorbing material part includes at least one sound reduction element which can be displaced at least in the region of the opening in order to open towards and away from the path thereof.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: February 12, 2008
    Assignee: Rehau AG & Co.
    Inventors: Christian Völkel, Stefan Bräuer, Klaus Griesshammer
  • Publication number: 20060283563
    Abstract: The invention relates to a profile element which can be flexibly connected to other adjacent profile elements in order to form a roller blind. Said profile element comprises a front side and a rear side which are arranged at a distance from each other and at least one cavity is arranged therebetween, wherein an opening made therein leads into the front wall thereof and a sound-absorbing material is arranged therein. The aim of the invention is to improve the profile element in the above-mentioned manner, especially with respect to the sound-insulating properties thereof. The inventive profile element can be produced by virtue of the fact that the sound-absorbing material part consists of at least one sound reduction element which can be displaced at least in the region of the opening in order to open towards and away from the path thereof.
    Type: Application
    Filed: May 19, 2004
    Publication date: December 21, 2006
    Applicant: Rehau AG & Co.
    Inventors: Christian Völkel, Stefan Brauer, Klaus Griesshammer