{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11999354","patent":{"patent_number":"US-11999354","title":"Method and apparatus for estimation road surface type using ultrasonic signal","assignee":null,"inventors":[],"filing_date":"2021-02-26T00:00:00.000Z","publication_date":"2024-06-04T00:00:00.000Z","cpc_codes":["B60W","B60W","G01S","G01S","G01S","G06F","G06N","G06N","G06V","G06V","B60W"],"num_claims":15,"abstract":"The present invention relates to a method and apparatus for estimating a road surface type by using an ultrasonic signal and, more particularly, to a method for estimating a road surface type by using an artificial neural network model machine-learned with respect to a reflected ultrasonic signal and an apparatus for performing same. According to the present invention, provided are a method and apparatus for providing highly accurate road surface information at low cost, by machine-learning both characteristics of an ultrasonic signal reflected from a road surface and a road surface state, establishing a model between the two, and then estimating the type of the road surface by utilizing the model. In particular, even a road surface where thin ice, that is, black ice, is formed, which was not detectable in the conventional method for estimating a road-surface friction coefficient, may be accurately estimated, thereby contributing to safer driving."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for estimation road surface type using ultrasonic signal","description":"The present invention relates to a method and apparatus for estimating a road surface type by using an ultrasonic signal and, more particularly, to a method for estimating a road surface type by using","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11999354","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-11999354","citation_suggestion":"Patentable. \"Method and apparatus for estimation road surface type using ultrasonic signal\" (US-11999354). https://patentable.app/patents/US-11999354","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11999354","json":"https://patentable.app/api/llm-context/US-11999354","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T18:36:58.085Z"}