Iridium Communications. has been granted a patent for a satellite system that operates independently of global navigation satellite systems. It utilizes ground stations with precision timing sources to correct satellite clock inaccuracies, enhancing position, navigation, and timing (PNT) services for users and other satellite operators. GlobalData’s report on Iridium Communications 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 Iridium Communications, was a key innovation area identified from patents. Iridium Communications's grant share as of June 2024 was 73%. Grant share is based on the ratio of number of grants to total number of patents.
Satellite system providing pnt signals independent of gnss
The patent US12032075B2 describes a satellite system designed to transmit position, navigation, and time (PNT) signals independently of existing global positioning systems. The system comprises two or more satellites that are interconnected to provide relative range and timing information. Each satellite is equipped with its own clock and operates within the same orbital region. A ground monitoring station, with a known location, receives PNT signals from the satellites and utilizes a terrestrial source of precision timing to estimate variations between the satellite clocks and the precision timing source. This estimation is achieved without relying on observations from satellites outside the same orbital region, ensuring a self-contained system.
The claims further elaborate on the system's capabilities, including the potential for multiple ground monitoring stations, the ability to estimate satellite orbits, and the use of different satellite constellations. The terrestrial source of precision timing can adhere to various standards, such as those from the National Institute of Standards and Technology (NIST) or the United States Naval Observatory (USNO). The system also allows for the transmission of clock variations to the satellites or end-user receivers, enhancing the accuracy of the PNT signals. Notably, the system is designed to function independently of GPS or other purpose-built PNT systems, providing a robust alternative for precision timing and navigation applications.
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