{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9666201","patent":{"patent_number":"US-9666201","title":"Bandwidth extension method and apparatus using high frequency excitation signal and high frequency energy","assignee":null,"inventors":[],"filing_date":"2016-03-14T00:00:00.000Z","publication_date":"2017-05-30T00:00:00.000Z","cpc_codes":["G10L","G10L","G10L","G10L","G10L","G10L"],"num_claims":17,"abstract":"The present invention provides a bandwidth extension method and apparatus. The method includes: acquiring a bandwidth extension parameter, where the bandwidth extension parameter includes one or more of the following parameters: a linear predictive coefficient (LPC), a line spectral frequency (LSF) parameter, a pitch period, a decoding rate, an adaptive codebook contribution, and an algebraic codebook contribution; and performing, according to the bandwidth extension parameter, bandwidth extension on a decoded low-frequency signal, to obtain a high frequency band signal. The high frequency band signal recovered by using the bandwidth extension method and apparatus in the embodiments of the present invention is close to an original high frequency band signal, and the quality is satisfactory."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Bandwidth extension method and apparatus using high frequency excitation signal and high frequency energy","description":"The present invention provides a bandwidth extension method and apparatus. The method includes: acquiring a bandwidth extension parameter, where the bandwidth extension parameter includes one or more ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9666201","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-9666201","citation_suggestion":"Patentable. \"Bandwidth extension method and apparatus using high frequency excitation signal and high frequency energy\" (US-9666201). https://patentable.app/patents/US-9666201","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9666201","json":"https://patentable.app/api/llm-context/US-9666201","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:36:03.057Z"}