{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11996897","patent":{"patent_number":"US-11996897","title":"Sound field generator, sound field generation method, and program","assignee":null,"inventors":[],"filing_date":"2019-11-08T00:00:00.000Z","publication_date":"2024-05-28T00:00:00.000Z","cpc_codes":["H04B","H04R","H04R","H04R"],"num_claims":8,"abstract":"A sound field generation apparatus includes: a first modulation unit modulating an ultrasonic wave signal according to a prescribed modulation system; a second modulation unit modulating the ultrasonic wave signal according to a modulation system different from the modulation system of the first modulation unit; a filter unit changing frequency characteristics of an audible range signal used in modulation of the second modulation unit; a first ultrasonic wave output unit outputting a first ultrasonic wave signal modulated by the first modulation unit; and a second ultrasonic wave output unit outputting a second ultrasonic wave signal modulated by the second modulation unit, wherein the filter unit is set to have filter characteristics to cancel a first audible sound reproduced by the first ultrasonic wave signal with a second audible sound reproduced by the second ultrasonic wave signal at a control point provided outside the sound field."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Sound field generator, sound field generation method, and program","description":"A sound field generation apparatus includes: a first modulation unit modulating an ultrasonic wave signal according to a prescribed modulation system; a second modulation unit modulating the ultrasoni","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11996897","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-11996897","citation_suggestion":"Patentable. \"Sound field generator, sound field generation method, and program\" (US-11996897). https://patentable.app/patents/US-11996897","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11996897","json":"https://patentable.app/api/llm-context/US-11996897","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T08:38:10.520Z"}