{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8520880","patent":{"patent_number":"US-8520880","title":"Boundary microphone","assignee":null,"inventors":[],"filing_date":"2011-09-30T00:00:00.000Z","publication_date":"2013-08-27T00:00:00.000Z","cpc_codes":["H04R"],"num_claims":5,"abstract":"A boundary microphone is provided to effectively reduce noises caused by external electromagnetic waves by providing electrostatic shielding, including on the portion of lead wires from a microphone unit to a circuit board. The boundary microphone has a base plate, a cover, a circuit board, and a microphone unit mounted in the opening with a metallic holder. A shield pattern for electrostatically shielding inside of the recess with the base plate is formed on the circuit board. The holder is configured to include a cylindrical section into which a rear end side of the microphone unit is fitted, and a D-cut section in which a part of a circumferential surface and a base surface of a cylinder with a base integral with the cylindrical section are cut away in parallel to a board surface of the circuit board, and the lead wire is routed within the D-cut section."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Boundary microphone","description":"A boundary microphone is provided to effectively reduce noises caused by external electromagnetic waves by providing electrostatic shielding, including on the portion of lead wires from a microphone u","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8520880","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-8520880","citation_suggestion":"Patentable. \"Boundary microphone\" (US-8520880). https://patentable.app/patents/US-8520880","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8520880","json":"https://patentable.app/api/llm-context/US-8520880","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T21:21:19.881Z"}