{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9811747","patent":{"patent_number":"US-9811747","title":"Traffic light detecting device and traffic light detecting method","assignee":null,"inventors":[],"filing_date":"2014-03-10T00:00:00.000Z","publication_date":"2017-11-07T00:00:00.000Z","cpc_codes":["G06V","H04N"],"num_claims":7,"abstract":"A traffic light detecting device includes a camera capturing an image in the travelling direction of a vehicle, and a traffic light detecting unit detecting a traffic light from the image. The unit sets reference signals the number of which is a multiple of three, and phases of which are shifted each other by a time obtained by dividing a cycle of an alternating current power supplied to the traffic light by the multiple of three, and adjusts a phase of the reference signal which is closest to the phase of the alternating current power, to the phase thereof. The unit extracts from the image a synchronized pixel with a luminance which varies in synchronization with the reference signal having the phase adjusted to the phase thereof, and judges that a traffic light is present at a position of the synchronized pixel."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Traffic light detecting device and traffic light detecting method","description":"A traffic light detecting device includes a camera capturing an image in the travelling direction of a vehicle, and a traffic light detecting unit detecting a traffic light from the image. The unit se","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9811747","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-9811747","citation_suggestion":"Patentable. \"Traffic light detecting device and traffic light detecting method\" (US-9811747). https://patentable.app/patents/US-9811747","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9811747","json":"https://patentable.app/api/llm-context/US-9811747","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:20:05.314Z"}