{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8515118","patent":{"patent_number":"US-8515118","title":"High efficient miniature electro-acoustic transducer with reduced dimensions","assignee":null,"inventors":[],"filing_date":"2012-08-17T00:00:00.000Z","publication_date":"2013-08-20T00:00:00.000Z","cpc_codes":["H04R"],"num_claims":16,"abstract":"A magnetic circuit includes an inner permanent magnet assembly and an outer permanent magnet assembly, a magnetically permeable yoke, and first and second air gap portions conducting first and second magnetic flux densities, respectively, the first and second air gap portions being adapted to receive first and second voice coil segments, respectively. The magnetic flux density in the first air gap portion is generated by superposition of magnetic flux generated by the inner permanent magnet assembly and magnetic flux generated by the outer permanent magnet assembly, and wherein the magnetic flux density in the second air gap portion is generated substantially exclusively by the inner permanent magnet assembly."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"High efficient miniature electro-acoustic transducer with reduced dimensions","description":"A magnetic circuit includes an inner permanent magnet assembly and an outer permanent magnet assembly, a magnetically permeable yoke, and first and second air gap portions conducting first and second ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8515118","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-8515118","citation_suggestion":"Patentable. \"High efficient miniature electro-acoustic transducer with reduced dimensions\" (US-8515118). https://patentable.app/patents/US-8515118","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8515118","json":"https://patentable.app/api/llm-context/US-8515118","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T04:20:41.233Z"}