{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8487799","patent":{"patent_number":"US-8487799","title":"Calibration for RFDAC","assignee":null,"inventors":[],"filing_date":"2012-03-12T00:00:00.000Z","publication_date":"2013-07-16T00:00:00.000Z","cpc_codes":["H04L","H04L"],"num_claims":16,"abstract":"The RFDAC includes: a multi-phase radio-frequency signal generator configured to generate radio-frequency signals that are different in phase; a vector selector configured to select two radio-frequency signals therefrom, cause each of the two radio-frequency signals to pass through at least one transmission path, combine the two radio-frequency signals; a test signal generator configured to output a test signal; a multiplexer configured to select either the test signal or the baseband signal; a vector controller configured to control the vector selector based on the selected signal and a predetermined selection pattern such that the two radio-frequency signals, and transmission paths thereof are selected; a detector configured to detect an output signal from the vector selector; and a calibrator configured to calibrate a phase error between the selected two radio-frequency signals, based on an envelope of the output signal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Calibration for RFDAC","description":"The RFDAC includes: a multi-phase radio-frequency signal generator configured to generate radio-frequency signals that are different in phase; a vector selector configured to select two radio-frequenc","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8487799","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-8487799","citation_suggestion":"Patentable. \"Calibration for RFDAC\" (US-8487799). https://patentable.app/patents/US-8487799","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8487799","json":"https://patentable.app/api/llm-context/US-8487799","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T20:57:12.788Z"}