{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9841447","patent":{"patent_number":"US-9841447","title":"Apparatus enabling use of a reference diode to compare against a device under test in relative amplitude and phase measurements","assignee":null,"inventors":[],"filing_date":"2015-11-18T00:00:00.000Z","publication_date":"2017-12-12T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B"],"num_claims":18,"abstract":"Embodiments of the invention include methods and devices for determining a phase angle offset between a phase angle of a local oscillator relative to a phase angle of a signal input of a Device Under Test (DUT). Some embodiments include a laser source and an optical phase adjustor, which may be embodied by a loop stretcher structured to controllably stretch a length of fiber optic cable, driven by a phase adjust driver. In other embodiments the phase angle offset information is conveyed to an oscilloscope for internal compensation."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Apparatus enabling use of a reference diode to compare against a device under test in relative amplitude and phase measurements","description":"Embodiments of the invention include methods and devices for determining a phase angle offset between a phase angle of a local oscillator relative to a phase angle of a signal input of a Device Under ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9841447","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-9841447","citation_suggestion":"Patentable. \"Apparatus enabling use of a reference diode to compare against a device under test in relative amplitude and phase measurements\" (US-9841447). https://patentable.app/patents/US-9841447","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9841447","json":"https://patentable.app/api/llm-context/US-9841447","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:35:43.839Z"}