Patents by Inventor Fredik Gustafsson

Fredik Gustafsson 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: 20130311084
    Abstract: The present invention relates to a method for positioning a user inside a building, wherein the user has a user carried device and the device is provided with a direction sensor and a movement sensor. The method includes providing the user carried device with a vector map of the building, wherein the vector map includes vectors and nodes representing possible movement paths for the user in the building; determining a starting point in the vector map, receiving movement information from the movement sensor, receiving direction information from the direction sensor, receiving a magnetic field map at the user carried device, wherein the magnetic field is detectable by the user carried device, and estimating a new position of the user based on the vector map, the movement information, the direction information and the property map.
    Type: Application
    Filed: July 23, 2013
    Publication date: November 21, 2013
    Applicant: SenionLab
    Inventors: CHRISTIAN LUNDQUIST, Per Skoglar, Fredik Gustafsson
  • Patent number: 8498811
    Abstract: The present invention relates to a method for positioning a user inside a building, wherein the user has a user carried device (100) and the user carried device (100) is provided with a direction sensor (110) and a movement sensor (110). The method comprises the steps of providing the user carried device with a vector map (220) of the building, wherein the vector map (220) comprises vectors and nodes representing possible movement paths for the user in the building; determining a starting point in the vector map representing a first position of the user; receiving movement information from the movement sensor (110) regarding movement of the user in the building; receiving direction information from the direction sensor (110) regarding the direction of the movement of the user; and estimating a new position of the user based on the vector map, the movement information and the direction information.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: July 30, 2013
    Assignee: Senionlab AB
    Inventors: Christian Lundquist, Per Skoglar, Fredik Gustafsson, David Törnqvist, Jonas Callmer