{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11953325","patent":{"patent_number":"US-11953325","title":"Direction calculation apparatus, direction calculation method, and program","assignee":null,"inventors":[],"filing_date":"2019-09-27T00:00:00.000Z","publication_date":"2024-04-09T00:00:00.000Z","cpc_codes":["G01C","G01C","G01C","G01C"],"num_claims":8,"abstract":"Provided is a technique for more accurately calculating a direction to be presented to a guided person using a force sensation presentation device held by the guided person. In particular, the device uses geomagnetic distortion. A direction calculation apparatus includes a circuitry configured to calculate a direction to guide the guided person. The calculating uses a geomagnetic map that includes a geomagnetic vector and a gravitational acceleration vector of a reference posture of the device in a reference coordinate system at a position included in a predetermined range. The calculating includes calculating a first matrix and a second matrix to calculate an instructed force sensation vector, which indicates a direction to guide the person. The first matrix includes vectors of the reference posture of the force sensation presentation device. The second vector includes vectors at a current posture of the force sensation presentation device in the reference coordinate system."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Direction calculation apparatus, direction calculation method, and program","description":"Provided is a technique for more accurately calculating a direction to be presented to a guided person using a force sensation presentation device held by the guided person. In particular, the device ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11953325","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-11953325","citation_suggestion":"Patentable. \"Direction calculation apparatus, direction calculation method, and program\" (US-11953325). https://patentable.app/patents/US-11953325","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11953325","json":"https://patentable.app/api/llm-context/US-11953325","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T01:31:49.602Z"}