TomTom‘s patent involves a method and system for compensating changes in the absolute position of locations on Earth’s surface due to crustal dynamics. The invention focuses on transforming positions from a digital map to a vehicle’s coordinate system for accurate navigation. GlobalData’s report on TomTom gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on TomTom, AV localization algorithms was a key innovation area identified from patents. TomTom's grant share as of May 2024 was 22%. Grant share is based on the ratio of number of grants to total number of patents.
Method of compensating for changes in earth's surface for navigation
A recently granted patent (Publication Number: US11965752B2) discloses a method for transforming the position of a location of interest from one reference frame to another. The first reference frame corresponds to a digital map's coordinate system, while the second reference frame aligns with the coordinate system used by a vehicle navigating through the map's network. The method involves obtaining data on the location of interest, displacement map data reflecting Earth's surface changes over time due to crustal dynamics, and using this information to adjust the position of the location of interest between the two reference frames. By compensating for Earth's surface changes, the method enables accurate navigation-related operations for the vehicle based on the transformed position.
Furthermore, the patent details various scenarios where the method can be applied, such as transforming the position of encountered objects or requested map objects for the vehicle, utilizing displacement map data for determining position changes over time, and associating displacement data with map objects in the second reference frame. The method also involves interpolation processes based on reference locations, displacement vectors indicating position changes, and speed of displacement due to crustal movements. By leveraging the displacement map data and adjusting positions accordingly, the method facilitates precise navigation operations within the digital map's network, ultimately enhancing the vehicle's path traversal and location accuracy.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
