{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11244692","patent":{"patent_number":"US-11244692","title":"Audio watermarking via correlation modification using an amplitude and a magnitude modification based on watermark data and to reduce distortion","assignee":null,"inventors":[],"filing_date":"2018-10-04T00:00:00.000Z","publication_date":"2022-02-08T00:00:00.000Z","cpc_codes":["G10L","G10L","G10L"],"num_claims":6,"abstract":"To convey information using an audio channel, an audio signal is modulated to produce a modulated signal by embedding additional information into the audio signal. Modulating the audio signal processing the audio signal to produce a set of filter responses; creating a delayed version of the filter responses; modifying the delayed version of the filter responses based on the additional information to produce an echo audio signal; and combining the audio signal and the echo audio signal to produce the modulated signal. Modulating the audio signal may involve employing a modulation strength, and a psychoacoustic model may be used to modify the modulation strength based on a comparison of a distortion of the modified audio signal relative to the audio signal and a target distortion."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Audio watermarking via correlation modification using an amplitude and a magnitude modification based on watermark data and to reduce distortion","description":"To convey information using an audio channel, an audio signal is modulated to produce a modulated signal by embedding additional information into the audio signal. Modulating the audio signal processi","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11244692","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-11244692","citation_suggestion":"Patentable. \"Audio watermarking via correlation modification using an amplitude and a magnitude modification based on watermark data and to reduce distortion\" (US-11244692). https://patentable.app/patents/US-11244692","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11244692","json":"https://patentable.app/api/llm-context/US-11244692","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T15:31:29.502Z"}