NextNav has filed a patent for a method involving generating altitude envelope distributions for a building based on constraints, determining reference altitude, and creating an absolute aggregate altitude envelope distribution. The method aims to provide accurate altitude information for different floor levels within the building. GlobalData’s report on NextNav 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 NextNav, Perimeter security was a key innovation area identified from patents. NextNav's grant share as of January 2024 was 48%. Grant share is based on the ratio of number of grants to total number of patents.
Indoor altitude estimation method for buildings
The patent application (Publication Number: US20230384087A1) describes a method and system for determining the altitude envelope distribution of a physical building. The method involves selecting altitude envelope distribution constraints, generating altitude envelope distributions for the building based on these constraints, creating an aggregate altitude envelope distribution, determining a reference altitude for the building, and calculating an absolute aggregate altitude envelope distribution. The system includes servers that perform these functions, allowing for accurate estimation of floor numbers based on altitude data.
Furthermore, the method includes steps such as filtering altitude envelope distributions based on constraints, identifying estimated altitudes of mobile devices, calculating vertical central tendencies and distance magnitudes, and mapping estimated floor numbers to floor labels. The system is designed to handle various constraints such as minimum and maximum building heights, floor heights, and number of floors. By utilizing altitude data and envelope distributions, the method and system provide a comprehensive approach to estimating floor numbers in physical buildings accurately. This technology has the potential to be utilized in various applications where precise floor number estimation is required, such as navigation systems, emergency response planning, and location-based services.
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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.
