{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9813821","patent":{"patent_number":"US-9813821","title":"Miniature sound generator","assignee":null,"inventors":[],"filing_date":"2016-11-17T00:00:00.000Z","publication_date":"2017-11-07T00:00:00.000Z","cpc_codes":["H04R","H04R","H04R","H04R"],"num_claims":10,"abstract":"A miniature sound generator includes a vibration system including a diaphragm, a voice coil, a damping part supporting the coil elastically, and a fixing system. The voice coil is located below the diaphragm for driving the diaphragm to vibrate and includes a pair of long shaft sides and a pair of short shaft sides. The damping part includes a circuit board arranged on one short shaft side for electrically connecting with the voice coil, and an insulated symmetrical plate arranged on the other short shaft side. The damping part is only arranged at the short shaft sides symmetrically, with one end thereof being fixed with the fixing system, and the other end thereof being fixed with the voice coil. The insulated symmetrical plate has a damping coefficient same to that of the circuit board."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Miniature sound generator","description":"A miniature sound generator includes a vibration system including a diaphragm, a voice coil, a damping part supporting the coil elastically, and a fixing system. The voice coil is located below the di","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9813821","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-9813821","citation_suggestion":"Patentable. \"Miniature sound generator\" (US-9813821). https://patentable.app/patents/US-9813821","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9813821","json":"https://patentable.app/api/llm-context/US-9813821","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:35:35.430Z"}