{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11982784","patent":{"patent_number":"US-11982784","title":"Foreign object detector","assignee":null,"inventors":[],"filing_date":"2021-01-20T00:00:00.000Z","publication_date":"2024-05-14T00:00:00.000Z","cpc_codes":["H02J","H02J","H02J"],"num_claims":1,"abstract":"A foreign object detector includes detection coils between a transmitter coil in a transmitter device and a receiver coil in a receiver device, a power supply circuit that supplies AC power having a predetermined frequency to each detection coil through a feeder coil located to be electromagnetically coupled to each detection coil, and a detection circuit that detects, while power to be transmitted to the receiver coil is being supplied to the transmitter coil, a criteria voltage to be a criterion for foreign object detection output from each detection coil at a start of power supply from the power supply circuit and outputs a signal to stop power supply to the transmitter coil in response to the criteria voltage for any detection coil deviating from a predetermined range. The transmitter device transmits power to the receiver device contactlessly."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Foreign object detector","description":"A foreign object detector includes detection coils between a transmitter coil in a transmitter device and a receiver coil in a receiver device, a power supply circuit that supplies AC power having a p","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11982784","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-11982784","citation_suggestion":"Patentable. \"Foreign object detector\" (US-11982784). https://patentable.app/patents/US-11982784","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11982784","json":"https://patentable.app/api/llm-context/US-11982784","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T06:52:04.868Z"}