{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9704500","patent":{"patent_number":"US-9704500","title":"Method for predicting high frequency band signal, encoding device, and decoding device","assignee":null,"inventors":[],"filing_date":"2015-07-24T00:00:00.000Z","publication_date":"2017-07-11T00:00:00.000Z","cpc_codes":["G10L","G10L","G10L","G10L"],"num_claims":22,"abstract":"A method includes obtaining a signal type of an audio signal and a low frequency band signal of the audio signal, where the audio signal includes the low frequency band signal and a high frequency band signal; obtaining a frequency envelope of the high frequency band signal according to the signal type; predicting an excitation signal of the high frequency band signal according to the low frequency band signal; and restoring the high frequency band signal according to the frequency envelope of the high frequency band signal and the excitation signal of the high frequency band signal. By using the technical solutions of the embodiments of the present invention, an error existing between a high frequency band signal obtained by prediction and an actual high frequency band signal can be effectively reduced, and an accuracy rate of the predicted high frequency band signal can be increased."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method for predicting high frequency band signal, encoding device, and decoding device","description":"A method includes obtaining a signal type of an audio signal and a low frequency band signal of the audio signal, where the audio signal includes the low frequency band signal and a high frequency ban","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9704500","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-9704500","citation_suggestion":"Patentable. \"Method for predicting high frequency band signal, encoding device, and decoding device\" (US-9704500). https://patentable.app/patents/US-9704500","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9704500","json":"https://patentable.app/api/llm-context/US-9704500","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T03:45:06.526Z"}