{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11981259","patent":{"patent_number":"US-11981259","title":"Sound generation device for vehicle","assignee":null,"inventors":[],"filing_date":"2020-08-12T00:00:00.000Z","publication_date":"2024-05-14T00:00:00.000Z","cpc_codes":["H04R"],"num_claims":20,"abstract":"A sound generation device for a vehicle, the sound generation device being installed in a vehicle which travels using an electric-powered motor as a power source, includes a sound control apparatus which sets a plurality of frequencies corresponding to a motor rotation speed and generates a synthetic sound signal indicating a synthetic sound including sounds at the plurality of frequencies and a speaker which outputs the synthetic sound based on the synthetic sound signal generated by the sound control apparatus, and the sound control apparatus sets an increase amount of an output of a sound in a low frequency band large compared to an increase amount of an output of a sound in a high frequency band in a frequency range of the synthetic sound in accordance with an increase in a motor torque value."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Sound generation device for vehicle","description":"A sound generation device for a vehicle, the sound generation device being installed in a vehicle which travels using an electric-powered motor as a power source, includes a sound control apparatus wh","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11981259","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-11981259","citation_suggestion":"Patentable. \"Sound generation device for vehicle\" (US-11981259). https://patentable.app/patents/US-11981259","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11981259","json":"https://patentable.app/api/llm-context/US-11981259","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T07:01:10.037Z"}