{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9607623","patent":{"patent_number":"US-9607623","title":"Method and apparatus for determining watermark symbols in a received audio signal that can contain echoes, reverberation and/or noise","assignee":null,"inventors":[],"filing_date":"2014-03-28T00:00:00.000Z","publication_date":"2017-03-28T00:00:00.000Z","cpc_codes":["G10L","G11B","G11B","G06F"],"num_claims":8,"abstract":"Following transmission of a watermarked audio signal over an acoustic path causing echoes, reverberation and/or noise, watermark detection correlation result peak values are concentrated within a limited temporal range around main correlation result peaks, which limited temporal range is much smaller than the total correlation length. The watermark detection is based on the following: given np correlation result peak values v=(v1, v2, . . . , vnp) in an average or expected probability distribution for correlation result values for unmarked content, the probability is calculated that within windows covering the limited temporal range there are np or more values from a correlation result value set greater than or equal to these peaks v."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for determining watermark symbols in a received audio signal that can contain echoes, reverberation and/or noise","description":"Following transmission of a watermarked audio signal over an acoustic path causing echoes, reverberation and/or noise, watermark detection correlation result peak values are concentrated within a limi","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9607623","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-9607623","citation_suggestion":"Patentable. \"Method and apparatus for determining watermark symbols in a received audio signal that can contain echoes, reverberation and/or noise\" (US-9607623). https://patentable.app/patents/US-9607623","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9607623","json":"https://patentable.app/api/llm-context/US-9607623","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:56:57.997Z"}