{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8520857","patent":{"patent_number":"US-8520857","title":"Head-related transfer function measurement method, head-related transfer function convolution method, and head-related transfer function convolution device","assignee":null,"inventors":[],"filing_date":"2009-02-05T00:00:00.000Z","publication_date":"2013-08-27T00:00:00.000Z","cpc_codes":["H04S","H04S"],"num_claims":12,"abstract":"A head-related transfer function measurement method includes the steps of: first measuring, including placing an acousto-electric conversion unit nearby both ears of a listener where placement of an electro-acoustic conversion unit is assumed, picking up sound waves emitted at a perceived sound source position with the acousto-electric conversion unit in a state with a dummy head or a human at the listener position, and measuring a head-related transfer function from only the sound waves directly reaching the acousto-electric conversion unit; second measuring, including picking up sound waves emitted at a perceived sound source position with the acousto-electric conversion unit, with no dummy head or human at the listener position, and measuring a natural-state transfer property from only the sound waves directly reaching the acousto-electric conversion unit; normalizing the head-related transfer function with the natural-state transfer property to obtain a normalized head-related transfer function; which is stored in a storage unit."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Head-related transfer function measurement method, head-related transfer function convolution method, and head-related transfer function convolution device","description":"A head-related transfer function measurement method includes the steps of: first measuring, including placing an acousto-electric conversion unit nearby both ears of a listener where placement of an e","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8520857","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-8520857","citation_suggestion":"Patentable. \"Head-related transfer function measurement method, head-related transfer function convolution method, and head-related transfer function convolution device\" (US-8520857). https://patentable.app/patents/US-8520857","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8520857","json":"https://patentable.app/api/llm-context/US-8520857","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T18:01:55.590Z"}