{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9712925","patent":{"patent_number":"US-9712925","title":"Dual antenna system and method for charging one or more hearing aids","assignee":null,"inventors":[],"filing_date":"2015-01-22T00:00:00.000Z","publication_date":"2017-07-18T00:00:00.000Z","cpc_codes":["H04R","H02J","H02J","H02J","H02J","H04R","H04R"],"num_claims":11,"abstract":"To make the charging of hearing aids more convenient, a charging device for wirelessly charging a hearing aid is provided. The charging device has a cylindrical container, an integrated antenna for generating an alternating magnetic field in the container in the event of electrical excitation, and a charging circuit which can be used to electrically excite the antenna. The antenna is a birdcage antenna in which rods are arranged parallel to a cylinder axis on a cylinder jacket and the ends of the rods at the edges of the cylinder jacket are each connected to an end ring. A switching element is arranged in each of the rods. The charging circuit is used to alternately generate a circular magnetic field, in which case the switching elements are operated in a closed mode, and a linear magnetic field, in which case the switching elements are operated in an open mode."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Dual antenna system and method for charging one or more hearing aids","description":"To make the charging of hearing aids more convenient, a charging device for wirelessly charging a hearing aid is provided. The charging device has a cylindrical container, an integrated antenna for ge","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9712925","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-9712925","citation_suggestion":"Patentable. \"Dual antenna system and method for charging one or more hearing aids\" (US-9712925). https://patentable.app/patents/US-9712925","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9712925","json":"https://patentable.app/api/llm-context/US-9712925","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:13:06.459Z"}