{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9681225","patent":{"patent_number":"US-9681225","title":"Modulation systems and methods for parametric loudspeaker systems","assignee":null,"inventors":[],"filing_date":"2016-01-15T00:00:00.000Z","publication_date":"2017-06-13T00:00:00.000Z","cpc_codes":["H04R","H04R","H04S"],"num_claims":20,"abstract":"Modulation systems and methods for use in parametric loudspeaker systems that can dynamically adjust modulation depths of ultrasonic carrier signals based on the levels of audio signals that the parametric loudspeaker systems are called upon to reproduce. The modulation systems and methods employ a dynamic level control function for determining a modulation offset that allows, (1) for low audio signal levels, a reduction of the modulation offset to obtain a reduced ultrasonic signal level, (2) for high level audio signals, full or maximum modulation of the ultrasonic carrier signal at an increased ultrasonic signal level, and, (3) for intermediate audio signal levels, under-modulation of the ultrasonic carrier signal at an intermediate ultrasonic signal level."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Modulation systems and methods for parametric loudspeaker systems","description":"Modulation systems and methods for use in parametric loudspeaker systems that can dynamically adjust modulation depths of ultrasonic carrier signals based on the levels of audio signals that the param","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9681225","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-9681225","citation_suggestion":"Patentable. \"Modulation systems and methods for parametric loudspeaker systems\" (US-9681225). https://patentable.app/patents/US-9681225","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9681225","json":"https://patentable.app/api/llm-context/US-9681225","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:18:07.411Z"}