{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11264842","patent":{"patent_number":"US-11264842","title":"Foreign object detection in wireless charging systems and related systems, methods, and devices","assignee":null,"inventors":[],"filing_date":"2020-10-08T00:00:00.000Z","publication_date":"2022-03-01T00:00:00.000Z","cpc_codes":["H02J","H02J","H02J","H04B","H04B","H04B"],"num_claims":20,"abstract":"Foreign object detection for wireless power transmitters and related systems, methods, and devices are disclosed. A controller for a wireless power transmitter includes a processing core and an analog to digital converter configured to sample at least one of a coil voltage potential and a coil current of a transmit coil. The processing core is configured to determine an expected reference Q-factor value responsive to the at least one of the sampled coil voltage potential and the sampled coil current, and compare the expected reference Q-factor value to a reference Q-factor value received from a wireless power receiver. The processing core is further configured to determine that a foreign object is detected proximate to the transmit coil responsive to a comparison of the expected Q-factor value to the reference Q-factor value received from the wireless power receiver."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Foreign object detection in wireless charging systems and related systems, methods, and devices","description":"Foreign object detection for wireless power transmitters and related systems, methods, and devices are disclosed. A controller for a wireless power transmitter includes a processing core and an analog","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11264842","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-11264842","citation_suggestion":"Patentable. \"Foreign object detection in wireless charging systems and related systems, methods, and devices\" (US-11264842). https://patentable.app/patents/US-11264842","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11264842","json":"https://patentable.app/api/llm-context/US-11264842","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T09:22:22.107Z"}