{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9741351","patent":{"patent_number":"US-9741351","title":"Adaptive quantization noise filtering of decoded audio data","assignee":null,"inventors":[],"filing_date":"2014-12-17T00:00:00.000Z","publication_date":"2017-08-22T00:00:00.000Z","cpc_codes":["G10L","G10L","G10L","G10L","G10L"],"num_claims":19,"abstract":"A method including steps of decoding an encoded audio signal indicative of encoded audio content (e.g., audio content captured during a teleconference) to generate a decoded signal indicative of a decoded version of the audio content, and performing adaptive quantization noise filtering on the decoded signal. The filtering is performed adaptively in the frequency domain in response to data indicative of signal to noise values in turn indicative of a post-quantization signal-to-quantization noise ratio for each frequency band of each of at least one segment of the encoded audio content. In some embodiments, each signal to noise value is a bit allocation value equal to the number of mantissa bits of an encoded audio sample of a frequency band of a segment of the encoded audio content. Other aspects are decoder, or post-filter coupled to receive a decoder's output, configured to perform an embodiment of the adaptive filtering."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Adaptive quantization noise filtering of decoded audio data","description":"A method including steps of decoding an encoded audio signal indicative of encoded audio content (e.g., audio content captured during a teleconference) to generate a decoded signal indicative of a dec","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9741351","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-9741351","citation_suggestion":"Patentable. \"Adaptive quantization noise filtering of decoded audio data\" (US-9741351). https://patentable.app/patents/US-9741351","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9741351","json":"https://patentable.app/api/llm-context/US-9741351","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T04:32:06.815Z"}