Patents by Inventor Michael Karl

Michael Karl 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: 12261438
    Abstract: A device controls a power flow in an AC network and has a series converter with a DC side to connect to a DC link and an AC side to connect to the AC network via a series transformer. The device further has a bridging arrangement between the series transformer and the series converter configured to bridge the series converter. The bridging arrangement contains at least one bridging branch having a switching unit with antiparallel thyristors and a resistance in series with the switching unit. Furthermore, a method of operation operates the device.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: March 25, 2025
    Assignee: Siemens Energy Global GmbH & Co. KG
    Inventors: Lutz Hanel, German Kuhn, Christian Pfeifer, Martin Pieschel, Kunal Sharma, Maximilian Dürre, Michael Karl
  • Publication number: 20230246442
    Abstract: A device controls a power flow in an AC network and has a series converter with a DC side to connect to a DC link and an AC side to connect to the AC network via a series transformer. The device further has a bridging arrangement between the series transformer and the series converter configured to bridge the series converter. The bridging arrangement contains at least one bridging branch having a switching unit with antiparallel thyristors and a resistance in series with the switching unit. Furthermore, a method of operation operates the device.
    Type: Application
    Filed: May 29, 2020
    Publication date: August 3, 2023
    Inventors: Lutz Hanel, German Kuhn, Christian Pfeifer, Martin Pieschel, Kunal Sharma, Maximilian Dürre, Michael Karl
  • Publication number: 20130134269
    Abstract: A support fitting is used for height-adjustable support of a substantially horizontally extending bearing and guiding track, for a camera trolley (dolly), and has a fitting body with an upper face, for directly or indirectly underpinning the track; and on a lower face lying opposite the upper face, receiving and/or fastening mechanism for fixing at least one support element, so the support fitting can be supported at a certain height with respect to a base. The fitting body can have at a stop member between the upper and lower face for connecting components that substantially extend below the contact surface (e.g. girders or sleepers). A number of variants are disclosed including one having a height-adjustable support for a substantially horizontally extending bearing and guiding track for supporting a camera trolley.
    Type: Application
    Filed: August 5, 2011
    Publication date: May 30, 2013
    Applicant: PANTHER GMBH
    Inventor: Michael Karl
  • Patent number: 8219691
    Abstract: In a method for waking up a computer, a data unit is received at a first port of a network switching device via a first network link. The first port of the network switching device is coupled to the first network link. The network switching device is used to determine whether the data unit includes data indicative of a wake-up event for the computer, and to change a state of a second network link to wake up the computer if the data unit includes data indicative of the wake-up event for the computer. The second network link is coupled to a second port of the network switching device.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: July 10, 2012
    Assignee: Marvell International Ltd.
    Inventor: Michael Karl
  • Patent number: 8095667
    Abstract: A method for waking up a computer. The method includes receiving a data unit via a first network link. The method further includes determining whether the received data unit includes data indicative of a wake-up event for the computer. The method further includes waking up the computer via a second network link if the data unit includes data indicative of a wake-up event for the computer.
    Type: Grant
    Filed: February 9, 2009
    Date of Patent: January 10, 2012
    Assignee: Marvell International Ltd.
    Inventor: Michael Karl
  • Patent number: 7881185
    Abstract: A network device includes a first plurality of ports and a first plurality of communication links. Each port of the first plurality of ports communicates with a corresponding communication link of the first plurality of communication links. An adapter aggregates the first plurality communication links into a second plurality of aggregated links. The adaptor assigns a single media access control address to each aggregated link of the second plurality of aggregated links. A driver selects a first aggregated link of the second plurality of aggregated links as an active link based on a link quality of the first aggregated link. The driver sends and receives data over the first aggregated link using the single media access control address assigned to the first aggregated link. The driver selects a second aggregated link of the second plurality of aggregated links as the active link in response to the link quality of the first aggregated link being less than a link quality of the second aggregated link.
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: February 1, 2011
    Assignee: Marvell International Ltd.
    Inventors: Michael Karl, Thomas Ruf, Manfred Kunz, Joachim Schmalz
  • Patent number: 7529180
    Abstract: A network device, method and computer program product for communicating data over aggregated links, wherein each of the aggregated links comprises a plurality of data communication links. The network device comprises n ports; and a processor to determine a link quality for each of m of the aggregated links, wherein m?2, wherein each of the m aggregated links comprises a preselected plurality p of the n ports, select one of the m aggregated links based on the link quality determined for each of the m aggregated links, and send the data over the selected one of the m aggregated links.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: May 5, 2009
    Assignee: Marvell International Ltd.
    Inventors: Michael Karl, Thomas Ruf, Manfred Kunz, Joachim Schmalz
  • Publication number: 20020106120
    Abstract: A hybrid method using both block recursion and pixel recursion of analyzing in real time the disparity of image characteristics in a pair of two-dimensional stereoscopic images to yield an improved three-dimensional appearance thereof. A scene is recorded by a stereoscopic camera system and its video images are subjected to a disparity analysis. For every pixel, the analysis detects the displacement between individual image characteristics and allows calculation of the motion parallax as it appears to a viewer. The is suitable for implementation with stereoscopic images of any kind and provides for basing the input image data for the block recursion on the left and on the right video image of a stereoscopic image pair and that the parameters of the stereo geometry are inclided in the pixel recursion for satisfying the epipolar condition. The method in accordance with the invention is used without additional aids with motion parallax in any spatial presentations.
    Type: Application
    Filed: January 31, 2002
    Publication date: August 8, 2002
    Inventors: Nicole Brandenburg, Michael Karl, Peter Kauff, Oliver Schreer