{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9817399","patent":{"patent_number":"US-9817399","title":"Autonomous vehicle speed calibration","assignee":null,"inventors":[],"filing_date":"2016-09-22T00:00:00.000Z","publication_date":"2017-11-14T00:00:00.000Z","cpc_codes":["G01C","B60W","B60W","B60W","B60W","B60W","B60W","B60W","B62D","G01C","G01C","G01C","G01C","G01C","G01C","G01C","G01C","G01C","G01C","G01C","G01C","G01C","G01C","G01C","G01S","G01S","G05D","G05D","G05D","G05D","G05D","G05D","G05D","G05D","G05D","G06F","G06F","G06V","G06V","G06V","G06V","G06V","G06V","G06V","G08G","G08G","G08G","G08G","G08G","G08G","G08G","H04W","B60W","B60W","B60W","B60W","B60W","B60W","B60W","B60W","B60W","B60W","B60W","B60W","B60W","B60W","B60W","G01C","G01C","G01C","G01C","G01S","G01S","G01S","G06T","G06T","G06T","G06T","G08G","H04L"],"num_claims":20,"abstract":"Systems and methods may calibrate an indicator of speed of an autonomous vehicle. In one implementation, a system may include at least one processor programmed to: receive from a camera at least a plurality of images representative of an environment of the vehicle; analyze the plurality of images to identify at least two recognized landmarks; determine, based on known locations of the two recognized landmarks, a value indicative of a distance between the at least two recognized landmarks; determine, based on an output of at least one sensor associated with the autonomous vehicle, a measured distance between the at least two landmarks; determine a correction factor for the at least one sensor based on a comparison of the value indicative of the distance between the at least to recognized landmarks and the measured distance between the at least two landmarks."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Autonomous vehicle speed calibration","description":"Systems and methods may calibrate an indicator of speed of an autonomous vehicle. In one implementation, a system may include at least one processor programmed to: receive from a camera at least a plu","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9817399","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-9817399","citation_suggestion":"Patentable. \"Autonomous vehicle speed calibration\" (US-9817399). https://patentable.app/patents/US-9817399","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9817399","json":"https://patentable.app/api/llm-context/US-9817399","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:50:43.155Z"}