{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9602913","patent":{"patent_number":"US-9602913","title":"Dual-frequency coaxial headphone","assignee":null,"inventors":[],"filing_date":"2015-05-29T00:00:00.000Z","publication_date":"2017-03-21T00:00:00.000Z","cpc_codes":["H04R","H04R","H04R"],"num_claims":13,"abstract":"A dual-frequency coaxial headphone including a headphone housing, a low-frequency speaker unit, and a high-frequency speaker unit. The headphone housing includes an accommodating space and a sound output hole. The accommodating space is communicated with the sound output hole. The low-frequency speaker unit is positioned in the accommodating space. The low-frequency speaker unit includes a housing and a low-frequency diaphragm disposed on the housing. The low-frequency diaphragm faces toward the sound output hole and includes a central through hole and an annular vibrating portion around the central through hole. The low-frequency diaphragm produces low-frequency sound waves toward the sound output hole by vibrations of the annular vibrating portion. The high-frequency speaker unit is disposed on the housing and is positioned in the central through hole. The high-frequency speaker unit is coaxial to the central through hole."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Dual-frequency coaxial headphone","description":"A dual-frequency coaxial headphone including a headphone housing, a low-frequency speaker unit, and a high-frequency speaker unit. The headphone housing includes an accommodating space and a sound out","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9602913","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-9602913","citation_suggestion":"Patentable. \"Dual-frequency coaxial headphone\" (US-9602913). https://patentable.app/patents/US-9602913","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9602913","json":"https://patentable.app/api/llm-context/US-9602913","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:13:31.941Z"}