Patents by Inventor Johannes Pfeffer

Johannes Pfeffer 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: 11988943
    Abstract: A method according to embodiments of the invention includes creating a three-dimensional profile of a scene, calculating a relative amount of light for each portion of the scene based on the three-dimensional profile, and activating a light source to provide a first amount of light to a first portion of the scene, and a second amount of light to a second portion of the scene. The first amount and the second amount are different. The first amount and the second amount are determined by calculating a relative amount of light for each portion of the scene.
    Type: Grant
    Filed: April 25, 2023
    Date of Patent: May 21, 2024
    Assignee: Lumileds LLC
    Inventors: Arjen Gerben Van der Sijde, Nicola Bettina Pfeffer, Pieter Johannes Quintus van Voorst Vader, Yourii Martynov
  • Patent number: 11953805
    Abstract: A method according to embodiments of the invention includes creating a three-dimensional profile of a scene, calculating a relative amount of light for each portion of the scene based on the three-dimensional profile, and activating a light source to provide a first amount of light to a first portion of the scene, and a second amount of light to a second portion of the scene. The first amount and the second amount are different. The first amount and the second amount are determined by calculating a relative amount of light for each portion of the scene.
    Type: Grant
    Filed: April 25, 2023
    Date of Patent: April 9, 2024
    Assignee: Lumileds LLC
    Inventors: Arjen Gerben Van der Sijde, Nicola Bettina Pfeffer, Pieter Johannes Quintus van Voorst Vader, Yourii Martynov
  • Patent number: 11936973
    Abstract: The invention describes an infrared imaging assembly (1) for capturing an infrared image (M0, M1) of a scene (S), comprising an infrared-sensitive image sensor (14); an irradiator (10) comprising an array of individually addressable infrared-emitting LEDs, wherein each infrared-emitting LED is arranged to illuminate a scene region (S1, . . . , S9); a driver (11) configured to actuate the infrared irradiator (10) by applying a switching pulse train (T1, . . . , T9) to each infrared-emitting LED; an image analysis module (13) configured to analyse a preliminary infrared image (M0) to determine the required exposure levels (130) for each of a plurality of image regions (R1, . . . , R9); and a pulse train adjusting unit (12) configured to adjust the duration (L1, . . . , L9) of a switching pulse train (T1, . . . , T9) according to the required exposure levels (130).
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: March 19, 2024
    Assignee: Lumileds LLC
    Inventors: Arjen Gerben Van der Sijde, Erno Fancsali, Nicola Bettina Pfeffer, Pieter Johannes Quintus van Voorst Vader
  • Patent number: 10240876
    Abstract: A heat exchanger includes at least one first flow channel for a first medium, at least one second flow channel for a second medium, and at least one bottom that can be connected to the housing. The bottom has at least one expansion element.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: March 26, 2019
    Assignee: MAHLE International GmbH
    Inventors: Stefan Neher, Johannes Pfeffer, Alexander Steck, Helmut Weiser
  • Patent number: 9127895
    Abstract: The invention relates to a heat exchanger, especially for cooling exhaust gases. Said heat exchanger comprises at least one first flow channel for a first medium, at least one second flow channel for a second medium, at least one bottom that can be connected to the housing, said bottom having at least one expansion element.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: September 8, 2015
    Assignee: MAHLE BEHR GMBH & CO. KG
    Inventors: Stefan Neher, Johannes Pfeffer, Alexander Steck, Helmut Weiser
  • Publication number: 20150204623
    Abstract: A heat exchanger includes at least one first flow channel for a first medium, at least one second flow channel for a second medium, and at least one bottom that can be connected to the housing. The bottom has at least one expansion element.
    Type: Application
    Filed: March 23, 2015
    Publication date: July 23, 2015
    Applicant: BEHR GmbH & CO. KG
    Inventors: Stefan NEHER, Johannes PFEFFER, Alexander STECK, Helmut WEISER
  • Patent number: 8967235
    Abstract: Disclosed is a heat exchanger, especially an exhaust gas heat exchanger, comprising a housing (101, 201, 301, 401, 501, 601, 702, 801, 901, 1101, 1401, 1501, 1901, 2001, 2101, 2201) which can be penetrated by at least one first medium (M1) and at least one second medium (M2), and at least one sealing element (213, 607, 707, 906, 1006, 1011, 1411, 1506, 2205). At least one flow means (217, 1507, 1507a, 1508, 1904, 2005, 2105, 2206, 2206a, 2206b), around which the second medium flows, is provided inside the housing, said flow means improving heat transfer from the first medium to the second medium.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: March 3, 2015
    Assignee: Behr GmbH & Co. KG
    Inventors: Uwe Baumann, Heinz Czemmel, Aydin Dogan, Karsten Emrich, Fabrice Frechard, Peter Hafenbrak, Thomas Mitchell, Johannes Pfeffer
  • Publication number: 20110056652
    Abstract: The invention relates to a heat exchanger, especially for cooling exhaust gases. Said heat exchanger comprises at least one first flow channel for a first medium, at least one second flow channel for a second medium, at least one bottom (1, 20, 121) that can be connected to the housing (101), said bottom (1, 20, 121) having at least one expansion element (24, 30, 40, 60, 70, 80, 81).
    Type: Application
    Filed: January 23, 2007
    Publication date: March 10, 2011
    Inventors: Stefan Neher, Johannes Pfeffer, Alexander Steck, Helmut Weiser
  • Publication number: 20090020275
    Abstract: The invention relates to a heat exchanger, especially for cooling exhaust gases. Said heat exchanger comprises at least one first flow channel for a first medium, at least one second flow channel for a second medium, at least one bottom that can be connected to the housing, said bottom having at least one expansion element.
    Type: Application
    Filed: July 23, 2008
    Publication date: January 22, 2009
    Inventors: Stefan NEHER, Johannes Pfeffer, Alexander Steck, Helmut Weiser
  • Publication number: 20080289804
    Abstract: Disclosed is a heat exchanger, especially an exhaust gas heat exchanger, comprising a housing (101, 201, 301, 401, 501, 601, 702, 801, 901, 1101, 1401, 1501, 1901, 2001, 2101, 2201) which can be penetrated by at least one first medium (M1) and at least one second medium (M2), and at least one sealing element (213, 607, 707, 906, 1006, 1011, 1411, 1506, 2205). At least one flow means (217, 1507, 1507a, 1508, 1904, 2005, 2105, 2206, 2206a, 2206b), around which the second medium flows, is provided inside the housing, said flow means improving heat transfer from the first medium to the second medium.
    Type: Application
    Filed: October 26, 2006
    Publication date: November 27, 2008
    Inventors: Uwe Baumann, Heinz Czemmel, Aydin Dogan, Kartsten Emrich, Fabrice Frechard, Peter Hafenbrak, Thomas Mitchel, Johannes Pfeffer