Patents by Inventor Steffen Matthias

Steffen Matthias 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: 11917469
    Abstract: In radio networks having a plurality of access points, for example WiFi, a wireless audio end device like for example a microphone or headphones is connected to an access point, to which it sends its audio data or from which it receives same. Audio transmission should occur as far as possible in interruption-free manner and with low latency. If the audio end device is moved the connection quality in relation to the previous access point can decrease and require scanning or roaming. In that respect first another base station is sought and then the radio connection is redirected there. In order in that case to avoid disruptive signal interruptions portions of the audio signal which can be particularly well predicted are detected or predicted by means of short-term statistical methods, like for example speech pauses. Scanning and roaming are then carried out during the predicted portions, whereby interruptions which are perceptible to a user are avoided.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: February 27, 2024
    Assignee: Sennheiser electronic GmbH & Co. KG
    Inventors: Steffen Matthias, Norbert Werner
  • Publication number: 20210176680
    Abstract: In radio networks having a plurality of access points, for example WiFi, a wireless audio end device like for example a microphone or headphones is connected to an access point, to which it sends its audio data or from which it receives same. Audio transmission should occur as far as possible in interruption-free manner and with low latency. If the audio end device is moved the connection quality in relation to the previous access point can decrease and require scanning or roaming. In that respect first another base station is sought and then the radio connection is redirected there. In order in that case to avoid disruptive signal interruptions portions of the audio signal which can be particularly well predicted are detected or predicted by means of short-term statistical methods, like for example speech pauses. Scanning and roaming are then carried out during the predicted portions, whereby interruptions which are perceptible to a user are avoided.
    Type: Application
    Filed: December 10, 2020
    Publication date: June 10, 2021
    Applicant: Sennheiser electronic GmbH & Co. KG
    Inventors: Steffen Matthias, Norbert Werner
  • Patent number: 11019428
    Abstract: A method for receiving audio data streams with mobile devices in different rooms in which sound is emitted via loudspeakers. Each mobile device connects over a local wireless network to a server that controls the sound emitted in the rooms via loudspeakers. Each mobile device detects room information, emitted only in the corresponding room, that indicates the room the respective mobile device is in. The room information is transmitted from each mobile device to the server. The server associates each room information with an output audio data stream that corresponds to the sound emitted via loudspeaker in the respective room in which the mobile device has detected the room information. The server assigns to each of the mobile devices an output audio data stream corresponding to the respective room information, and transmits the output audio data stream over the local network to the mobile device, which receives and replays it.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: May 25, 2021
    Assignee: Sennheiser electronic GmbH & Co. KG
    Inventors: Steffen Matthias, Konstantin Septinus, Rafael Cauduro Dias de Paiva, SenthilKumar Vellaichamy
  • Patent number: 11006234
    Abstract: An improved method for configuring an audio reproduction device for detecting sound and providing different output audio signals in a plurality of rooms where at least two wireless microphones connect via a local network to an audio streaming server. Each of the wireless microphones detects room information indicating the room in which it is located, and transmits it to the server, together with an input audio signal. The server compiles at least two different output audio signals according to the respective room information from the input audio signals, and assigns each to a room. The output audio signals are provided via the local network in the rooms such that each of the output audio signals may be received in all rooms, and may be replayed only in the room to which it has been assigned. Each wireless microphone may be used in each of the rooms.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: May 11, 2021
    Assignee: Sennheiser electronic GmbH & Co. KG
    Inventors: Steffen Matthias, Rafael Cauduro Dias de Paiva, Konstantin Septinus, Senthil Kumar Vellaichamy
  • Publication number: 20200154203
    Abstract: A method for receiving audio data streams with mobile devices in different rooms in which sound is emitted via loudspeakers. Each mobile device connects over a local wireless network to a server that controls the sound emitted in the rooms via loudspeakers. Each mobile device detects room information, emitted only in the corresponding room, that indicates the room the respective mobile device is in. The room information is transmitted from each mobile device to the server. The server associates each room information with an output audio data stream that corresponds to the sound emitted via loudspeaker in the respective room in which the mobile device has detected the room information. The server assigns to each of the mobile devices an output audio data stream corresponding to the respective room information, and transmits the output audio data stream over the local network to the mobile device, which receives and replays it.
    Type: Application
    Filed: November 11, 2019
    Publication date: May 14, 2020
    Applicant: Sennheiser electronic GmbH & Co. KG
    Inventors: Steffen Matthias, Konstantin Felix Septinus, Rafael Cauduro Dias de Paiva, SenthilKumar Vellaichamy
  • Publication number: 20200154226
    Abstract: An improved method for configuring an audio reproduction device for detecting sound and providing different output audio signals in a plurality of rooms where at least two wireless microphones connect via a local network to an audio streaming server. Each of the wireless microphones detects room information indicating the room in which it is located, and transmits it to the server, together with an input audio signal. The server compiles at least two different output audio signals according to the respective room information from the input audio signals, and assigns each to a room. The output audio signals are provided via the local network in the rooms such that each of the output audio signals may be received in all rooms, and may be replayed only in the room to which it has been assigned. Each wireless microphone may be used in each of the rooms.
    Type: Application
    Filed: November 8, 2019
    Publication date: May 14, 2020
    Applicant: Sennheiser electronic GmbH & Co. KG
    Inventors: Steffen Matthias, Rafael Cauduro Dias de Paiva, Konstantin Felix Septinus, SenthilKumar Vellaichamy
  • Patent number: 9097144
    Abstract: A valve drive arrangement for actuating gas exchange valves of an internal combustion engine having a camshaft, on which first and second cam carriers are arranged on first and second contact regions in a non-positive and/or positively locking manner, the first cam carrier having at least one cam for actuating a gas exchange valve and the second cam carrier having at least one cam for actuating an ancillary unit, the first contact region being configured with regard to the geometric dimensions differently in relation to the second contact region in such a way that the second cam carrier can be mounted, without being impeded by the contact regions for the first cam carrier.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: August 4, 2015
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventor: Steffen Matthias Kappler
  • Publication number: 20140102391
    Abstract: A sliding cam arrangement for the variable actuation of gas exchange valves of an internal combustion engine, having a camshaft which has toothing regions with an external toothing, wherein the toothing regions mesh in each case with an internal toothing of a cam carrier, wherein the ratio of base circle radius R2 of the cam carrier to tip circle radius R1 of the toothing of the camshaft satisfies the following criteria: R2/R1<1.55.
    Type: Application
    Filed: October 7, 2013
    Publication date: April 17, 2014
    Applicant: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Steffen Matthias Kappler, Frank Ickinger
  • Publication number: 20140102393
    Abstract: A valve drive arrangement for actuating gas exchange valves of an internal combustion engine having a camshaft, on which first and second cam carriers are arranged on first and second contact regions in a non-positive and/or positively locking manner, the first cam carrier having at least one cam for actuating a gas exchange valve and the second cam carrier having at least one cam for actuating an ancillary unit, the first contact region being configured with regard to the geometric dimensions differently in relation to the second contact region in such a way that the second cam carrier can be mounted, without being impeded by the contact regions for the first cam carrier.
    Type: Application
    Filed: October 7, 2013
    Publication date: April 17, 2014
    Applicant: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventor: Steffen Matthias Kappler