{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11979704","patent":{"patent_number":"US-11979704","title":"Speaker utilizing voice coil for wireless charging","assignee":null,"inventors":[],"filing_date":"2021-11-29T00:00:00.000Z","publication_date":"2024-05-07T00:00:00.000Z","cpc_codes":["H04R","H02J","H04R","H04R","H04R","H02J","H04R","H04R"],"num_claims":16,"abstract":"The present disclosure is directed to a device that includes a headphone speaker housing that includes a coil having a first terminal and a second terminal that is configured to operate in a sound generation mode and a battery charging mode. A class D amplifier circuit is configured to rectify in a battery charging mode and amplify in a sound generation mode, the class D amplifier is coupled to the first terminal and the second terminal of the coil. The class D amplifier including a first, second, third, and fourth switch, the first terminal coupled between the first and second switch, the second terminal coupled between the third and fourth switch. An audio generation circuit having a third terminal and a fourth terminal, the third terminal coupled between the first and third switch of the class D amplifier and the fourth terminal coupled between the second and fourth switch of the class D amplifier. A battery charging circuit coupled to the third terminal and the fourth terminal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Speaker utilizing voice coil for wireless charging","description":"The present disclosure is directed to a device that includes a headphone speaker housing that includes a coil having a first terminal and a second terminal that is configured to operate in a sound gen","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11979704","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-11979704","citation_suggestion":"Patentable. \"Speaker utilizing voice coil for wireless charging\" (US-11979704). https://patentable.app/patents/US-11979704","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11979704","json":"https://patentable.app/api/llm-context/US-11979704","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T03:12:50.968Z"}