Patents by Inventor Ivo Keller

Ivo Keller 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: 11917516
    Abstract: A method of operating a user equipment (“UE”) to handle an internet protocol multimedia subsystem (“IMS”) emergency call can include sending a session initiation protocol (“SIP”) REGISTER request relating to an emergency registration to a proxy call session control function (“P-CSCF”) of an IMS network. The method can further include, responsive to sending the SIP REGISTER request, receiving a response from the P-CSCF. The method can further include, responsive to receiving the response, performing an action based on the response.
    Type: Grant
    Filed: May 3, 2021
    Date of Patent: February 27, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Fredrik Lindholm, Ralf Keller, Susana Fernandez Alonso, Ivo Sedlacek
  • Publication number: 20130027549
    Abstract: The invention relates to a method and a device for video surveillance, wherein by means of at least one video camera, an image of an image excerpt of an environment to be monitored in the vicinity of the video camera is recorded, wherein at least one pixel of a short-term background model assigned to the image excerpt is compared at a first point in time with a corresponding pixel of a long-term background model assigned to the image excerpt at the first point in time and with a corresponding pixel of the long-term background model at a second point in time, wherein the second point in time precedes the first point in time.
    Type: Application
    Filed: July 29, 2011
    Publication date: January 31, 2013
    Applicant: TECHNISCHE UNIVERSITAT BERLIN
    Inventors: Ruben Heras Evangelio, Thomas Sikora, Ivo Keller
  • Publication number: 20130027550
    Abstract: The invention relates to a method and a device for video surveillance, wherein, by means of at least one video camera, an image of an image excerpt of an environment to be monitored in the vicinity of the video camera is recorded, wherein at least one pixel of the image is compared with a corresponding pixel of a short-term background model assigned to the image excerpt and with a corresponding pixel of a long-term background model assigned to the image excerpt.
    Type: Application
    Filed: July 29, 2011
    Publication date: January 31, 2013
    Applicant: TECHNISCHE UNIVERSITAT BERLIN
    Inventors: Ruben Heras Evangelio, Thomas Sikora, Ivo Keller