{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11480520","patent":{"patent_number":"US-11480520","title":"Water content sensor and road surface state detection device","assignee":null,"inventors":[],"filing_date":"2018-07-20T00:00:00.000Z","publication_date":"2022-10-25T00:00:00.000Z","cpc_codes":["G01N","G01N","G01W","G01W","G01W"],"num_claims":7,"abstract":"A water content sensor includes: a light emitter that emits detection light having a first wavelength band and reference light a second wavelength band toward a road surface; a first light receiver that converts the detection light reflected by the road surface to a first electric signal; a second light receiver that converts the reference light reflected by the road surface to a second electric signal; and a computation processor that detects the amount of water based on a signal ratio between the first electric signal and the second electric signal. The computation processor detects the amount of water based on the signal ratio obtained when the signal intensity of at least one of the first electric signal and the second electric signal is within a predetermined range defined relative to a reference value."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Water content sensor and road surface state detection device","description":"A water content sensor includes: a light emitter that emits detection light having a first wavelength band and reference light a second wavelength band toward a road surface; a first light receiver th","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11480520","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-11480520","citation_suggestion":"Patentable. \"Water content sensor and road surface state detection device\" (US-11480520). https://patentable.app/patents/US-11480520","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11480520","json":"https://patentable.app/api/llm-context/US-11480520","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T23:30:44.214Z"}