Patents by Inventor Allan Madsen

Allan Madsen 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).

  • Device and method for forming a set of cells for time difference measurements, and for measuring time differences for locating a user of a mobile terminal
    Patent number: 7308259
    Abstract: A method and device are provided, for locating a user of a mobile terminal, for forming a set of cells for time difference measurements for a mobile terminal camped on a first cell of a cellular network and being in idle mode, the method including the steps of: receiving a first set of cell identifiers of neighboring cells for the first cell, with each of the neighboring cells sending a radio signal on synchronization channels; and measuring the received signal strength for cells having identifiers which are included in the first set, with a number N of cells having a signal strength exceeding a predefined threshold constituting a set of available cells; wherein the improvement includes the steps of: reading the synchronization channels for the set of available cells, thereby measuring time differences for the set of available cells; and selecting a second set from the set of available cells using a predefined selection rule, the second set including M<N cells, thus forming a new set of cells for time diff
    Type: Grant
    Filed: February 11, 2004
    Date of Patent: December 11, 2007
    Assignee: Siemens Aktiengesellschaft
    Inventor: Allan Madsen
  • DEVICE AND METHOD FOR FORMING A SET OF CELLS FOR TIME DIFFERENCE MEASUREMENTS AND FOR MEASURING TIME DIFFERENCES FOR LOCATING A USER OF A MOBILE TERMINAL
    Publication number: 20070105553
    Abstract: A method and device are provided, for locating a user of a mobile terminal, for forming a set of cells for time difference measurements for a mobile terminal camped on a first cell of a cellular network and being in idle mode, the method including the steps of: receiving a first set of cell identifiers of neighboring cells for the first cell, with each of the neighboring cells sending a radio signal on synchronization channels; and measuring the received signal strength for cells having identifiers which are included in the first set, with a number N of cells having a signal strength exceeding a predefined threshold constituting a set of available cells; wherein the improvement includes the steps of: reading the synchronization channels for the set of available cells, thereby measuring time differences for the set of available cells; and selecting a second set from the set of available cells using a predefined selection rule, the second set including M<N cells, thus forming a new set of cells for time diff
    Type: Application
    Filed: December 27, 2006
    Publication date: May 10, 2007
    Applicant: Siemens Aktiengesellschaft
    Inventor: Allan Madsen
  • Device and method for forming a set of cells for time difference measurements, and for measuring time differences for locating a user of a mobile terminal
    Publication number: 20040235471
    Abstract: A method and device are provided, for locating a user of a mobile terminal, for forming a set of cells for time difference measurements for a mobile terminal camped on a first cell of a cellular network and being in idle mode, the method including the steps of: receiving a first set of cell identifiers of neighboring cells for the first cell, with each of the neighboring cells sending a radio signal on synchronization channels; and measuring the received signal strength for cells having identifiers which are included in the first set, with a number N of cells having a signal strength exceeding a predefined threshold constituting a set of available cells; wherein the improvement includes the steps of: reading the synchronization channels for the set of available cells, thereby measuring time differences for the set of available cells; and selecting a second set from the set of available cells using a predefined selection rule, the second set including M<N cells, thus forming a new set of cells for time diff
    Type: Application
    Filed: February 11, 2004
    Publication date: November 25, 2004
    Inventor: Allan Madsen