{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9774854","patent":{"patent_number":"US-9774854","title":"Method and apparatus for pyramid vector quantization indexing and de-indexing of audio/video sample vectors","assignee":null,"inventors":[],"filing_date":"2015-02-26T00:00:00.000Z","publication_date":"2017-09-26T00:00:00.000Z","cpc_codes":["H04N","G10L","H04N","H04N"],"num_claims":44,"abstract":"A method for pyramid vector quantization indexing of audio/video signals comprises obtaining of an integer input vector representing the audio/video signal samples. A leading sign is extracted from the integer input vector. The leading sign is a sign of a terminal non-zero coefficient in the integer input vector. The terminal non-zero coefficient is one of a first non-zero coefficient and a last non-zero coefficient in the integer input vector. The integer input vector is indexed with a pyramid vector quantization enumeration scheme into an output index representing the audio/video signal samples. The pyramid vector quantization enumeration scheme is designed for neglecting the sign of the terminal non-zero coefficient. The output index and the leading sign are outputted. A corresponding method for de-indexing, an encoder, a decoder, and computer programs therefore are also disclosed."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for pyramid vector quantization indexing and de-indexing of audio/video sample vectors","description":"A method for pyramid vector quantization indexing of audio/video signals comprises obtaining of an integer input vector representing the audio/video signal samples. A leading sign is extracted from th","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9774854","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-9774854","citation_suggestion":"Patentable. \"Method and apparatus for pyramid vector quantization indexing and de-indexing of audio/video sample vectors\" (US-9774854). https://patentable.app/patents/US-9774854","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9774854","json":"https://patentable.app/api/llm-context/US-9774854","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:04:05.799Z"}