{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9820065","patent":{"patent_number":"US-9820065","title":"Method and apparatus to evaluate audio equipment for dynamic distortions and or differential phase and or frequency modulation effects","assignee":null,"inventors":[],"filing_date":"2017-01-04T00:00:00.000Z","publication_date":"2017-11-14T00:00:00.000Z","cpc_codes":["H04R","H04R","H04R","H04R"],"num_claims":20,"abstract":"A system is provided to analyze cross-modulation distortion in audio devices, which may include testing with audio frequencies. One or more distortion signals from the audio device may be measured for an amplitude, phase, and or frequency modulation effect. In another embodiment a musical signal may be used as a test signal. Providing additional test signals to the audio device can induce a time varying cross-modulation distortion signal from an output of the audio device."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus to evaluate audio equipment for dynamic distortions and or differential phase and or frequency modulation effects","description":"A system is provided to analyze cross-modulation distortion in audio devices, which may include testing with audio frequencies. One or more distortion signals from the audio device may be measured for","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9820065","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-9820065","citation_suggestion":"Patentable. \"Method and apparatus to evaluate audio equipment for dynamic distortions and or differential phase and or frequency modulation effects\" (US-9820065). https://patentable.app/patents/US-9820065","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9820065","json":"https://patentable.app/api/llm-context/US-9820065","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:19:10.076Z"}