{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11979034","patent":{"patent_number":"US-11979034","title":"Foreign object detection in a wireless power transfer system","assignee":null,"inventors":[],"filing_date":"2020-09-01T00:00:00.000Z","publication_date":"2024-05-07T00:00:00.000Z","cpc_codes":["H02J","H02J","H02J","H04B"],"num_claims":12,"abstract":"A power transmitter for wirelessly for providing power to a power receiver via an inductive power transfer signal. The power transmitter comprising a power transfer coil for generating the power transfer signal, a driver for generating a drive signal for the power transfer coil, the driver being arranged to, during a power transfer phase, generate the drive signal to employ a repeating time frame comprising at least a power transfer time interval and a transfer foreign object detection time interval, a receiver for receiving a message from the power receiver, a foreign object detector arranged to perform a foreign object detection (FOD) test, a communication coil for generating a communication signal, and a communication unit arranged to generate a communication control signal for the communication coil to provide the communication signal during a communication period, said communication unit being arranged to set the communication control signal to a first value during the communication period and to set the communication control signal to a second value during a communication foreign object detection time interval, the communication foreign object detection time interval occurring during the communication period."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Foreign object detection in a wireless power transfer system","description":"A power transmitter for wirelessly for providing power to a power receiver via an inductive power transfer signal. The power transmitter comprising a power transfer coil for generating the power trans","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11979034","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-11979034","citation_suggestion":"Patentable. \"Foreign object detection in a wireless power transfer system\" (US-11979034). https://patentable.app/patents/US-11979034","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11979034","json":"https://patentable.app/api/llm-context/US-11979034","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T14:09:57.751Z"}