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About Us
History & Mission
Rosum was founded by the original architects of the GPS constellation for the sole purpose of providing reliable, accurate location technology that works where GPS falls short: indoors and in urban areas, where most people reside, and where most assets of value can be found.
Rosum was founded by Dr. James Spilker, the co-architect of GPS, and Dr. Matthew Rabinowitz, an expert in high-precision navigation systems. Jim and Matthew deeply understand the inherent limitations of GPS, and they established Rosum to address those limitations. Jim's GPS co-architect, Dr. Bradford Parkinson, is a member of Rosum's board of technical advisors.
Since then, we have developed positioning solutions utilizing digital, analog and mobile broadcast TV standards, as well as hybrid solutions combining TV and GPS signals and TV with cellular signals. For customers for whom reliable, indoor/outdoor, accurate location matters, Rosum provides the premier location determination solution.
The Rosum team includes world experts in navigation, cellular networks, and broadcast television, as well as founders and executives of multiple successful ventures and enterprises.
