{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9739620","patent":{"patent_number":"US-9739620","title":"Compressing trajectory data of a navigation device","assignee":null,"inventors":[],"filing_date":"2015-09-29T00:00:00.000Z","publication_date":"2017-08-22T00:00:00.000Z","cpc_codes":["G01C","G08G"],"num_claims":12,"abstract":"An embodiment of the present invention provides a method for storing trajectory. The method includes: mapping, based on a plurality of positions on a trajectory of an entity, the trajectory to at least one road segment in a road network; identifying an entry point and an exit point of one of the road segments, wherein the entry point is a point where the entity starts traveling along the road segment, and the exit point is a point where the entity ends traveling along the road segment; and storing data related to at least one of the entry point and the exit point, to store the road segment as a part of information of the trajectory."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Compressing trajectory data of a navigation device","description":"An embodiment of the present invention provides a method for storing trajectory. The method includes: mapping, based on a plurality of positions on a trajectory of an entity, the trajectory to at leas","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9739620","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-9739620","citation_suggestion":"Patentable. \"Compressing trajectory data of a navigation device\" (US-9739620). https://patentable.app/patents/US-9739620","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9739620","json":"https://patentable.app/api/llm-context/US-9739620","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:04:16.411Z"}