{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8472649","patent":{"patent_number":"US-8472649","title":"Push-pull type speaker device and method of manufacturing the same","assignee":null,"inventors":[],"filing_date":"2009-09-14T00:00:00.000Z","publication_date":"2013-06-25T00:00:00.000Z","cpc_codes":["H04R","H04R","H04R","H04R"],"num_claims":18,"abstract":"A push-pull type speaker device and a method of manufacturing the same are provided. The speaker device includes a frame, a permanent magnet installed within the frame using a fixing device, a first diaphragm and a second diaphragm installed in opposite end portions of the frame, a pair of electromagnets, respectively corresponding to the first and second diaphragm, each installed at a distance from the permanent magnet, and a power source driver for supplying current to the pair of electromagnets, wherein a winding direction of each electromagnet is formed such that, when current is provided from the power source driver to each of the electromagnets, the pair of electromagnets have an opposite magnetic flux direction."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Push-pull type speaker device and method of manufacturing the same","description":"A push-pull type speaker device and a method of manufacturing the same are provided. The speaker device includes a frame, a permanent magnet installed within the frame using a fixing device, a first d","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8472649","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-8472649","citation_suggestion":"Patentable. \"Push-pull type speaker device and method of manufacturing the same\" (US-8472649). https://patentable.app/patents/US-8472649","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8472649","json":"https://patentable.app/api/llm-context/US-8472649","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T19:15:38.859Z"}