{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10515656","patent":{"patent_number":"US-10515656","title":"Pitch extraction device and pitch extraction method by encoding a bitstream organized into equal sections according to bit values","assignee":null,"inventors":[],"filing_date":"2017-09-28T00:00:00.000Z","publication_date":"2019-12-24T00:00:00.000Z","cpc_codes":["G10L","G10L","G10L","G10L","G10L","G10L","G10L"],"num_claims":14,"abstract":"A pitch extraction device includes a processor configured to perform a process including: dividing a first bit stream in encoded data into a plurality of sections each having a prescribed section length, the encoded data being obtained by performing entropy encoding on a residual signal calculated by performing linear prediction analysis on a sound signal; allocating a first value or a second value to each of the plurality of sections in the first bit stream in accordance with a bit value in each of the plurality of sections; generating a second bit stream obtained by re-encoding the first bit stream according to the first value and the second value that have been allocated to each of the plurality of sections in the first bit stream; and calculating a fundamental frequency of the sound signal in accordance with an autocorrelation of the second bit stream."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Pitch extraction device and pitch extraction method by encoding a bitstream organized into equal sections according to bit values","description":"A pitch extraction device includes a processor configured to perform a process including: dividing a first bit stream in encoded data into a plurality of sections each having a prescribed section leng","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10515656","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-10515656","citation_suggestion":"Patentable. \"Pitch extraction device and pitch extraction method by encoding a bitstream organized into equal sections according to bit values\" (US-10515656). https://patentable.app/patents/US-10515656","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10515656","json":"https://patentable.app/api/llm-context/US-10515656","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T08:33:47.713Z"}