Patents by Inventor ?ukasz Twardowski

?ukasz Twardowski 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).

  • Method for validating inland barrier crossing in a digital map
    Patent number: 8886461
    Abstract: A method for detecting inland barrier (16, 16?) crossings (24, 26, 30) using speed layers from community input probe traces in combination with a digital map. Inland barrier crossing specifications are detected and/or validated using information about the speed of probes that actually cross the barrier (16, 16?). A bridge (26) across the inland barrier (16) is inferred if the velocity average for barrier crossing probe traces is greater than an established threshold value. Conversely, a ferry (24) is inferred if the average velocity for barrier crossing probe traces is less than the established threshold value. When there is a prominent gap in the data for the barrier crossing probe traces, a tunnel (30) is inferred.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: November 11, 2014
    Assignee: TomTom Polska Sp. z.o.o.
    Inventor: Łukasz Twardowski