{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9687180","patent":{"patent_number":"US-9687180","title":"Intelligent human motion systems and methods","assignee":null,"inventors":[],"filing_date":"2015-12-29T00:00:00.000Z","publication_date":"2017-06-27T00:00:00.000Z","cpc_codes":["A61B","G01C","G01C","G01C","G01S","A61B","A61B","A61B","A61B"],"num_claims":24,"abstract":"A system for identifying human motion of a subject may comprise: a sensor platform attached to the subject; an attitude filter that receives sensor data and calculates the attitude and heading of the platform; a feature construction and aggregation unit that receives the sensor data and the attitude and heading to calculate a feature vector for a human motion model, an evaluation unit that receives feature vectors and calculates the probability that an instance of a specific human motion occurred; wherein the feature vector comprises: one or more feature constructions, X, such as: forces along and perpendicular to the gravity field direction; a magnitude of rotations perpendicular to the gravity field direction; an adjusted pressure altitude; one or more feature constructions which are time derivatives dX/dt; and one or more feature constructions which are derivatives V(dX/dt), wherein: V(x)=2*H(x)−1, H(x)=+1 (x>0), 0 (x<0), and x is dX/dt."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Intelligent human motion systems and methods","description":"A system for identifying human motion of a subject may comprise: a sensor platform attached to the subject; an attitude filter that receives sensor data and calculates the attitude and heading of the ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9687180","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9687180","citation_suggestion":"Patentable. \"Intelligent human motion systems and methods\" (US-9687180). https://patentable.app/patents/US-9687180","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9687180","json":"https://patentable.app/api/llm-context/US-9687180","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T12:41:26.800Z"}