{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9781535","patent":{"patent_number":"US-9781535","title":"Multi-channel audio upmixer","assignee":null,"inventors":[],"filing_date":"2015-05-15T00:00:00.000Z","publication_date":"2017-10-03T00:00:00.000Z","cpc_codes":["H04S","H04S","H04S","H04S","H04S"],"num_claims":20,"abstract":"An audio processor may receive audio input channels including stereo channels and one or more surround channels. The audio processor may downmix the audio input channels into stereo output channels; developing the stereo output channels into upmixed audio channels including at least one additional surround channel not present in the audio input channels; delay the audio input channels into delayed audio channels that are time-aligned with the upmixed audio channels; and mix the delayed audio channels and the upmixed audio channels into audio output channels."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Multi-channel audio upmixer","description":"An audio processor may receive audio input channels including stereo channels and one or more surround channels. The audio processor may downmix the audio input channels into stereo output channels; d","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9781535","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-9781535","citation_suggestion":"Patentable. \"Multi-channel audio upmixer\" (US-9781535). https://patentable.app/patents/US-9781535","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9781535","json":"https://patentable.app/api/llm-context/US-9781535","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:09:43.606Z"}