{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8483322","patent":{"patent_number":"US-8483322","title":"Automatic frequency correction","assignee":null,"inventors":[],"filing_date":"2008-07-28T00:00:00.000Z","publication_date":"2013-07-09T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L","H04L"],"num_claims":16,"abstract":"A receiver front end receives a local frequency reference signal and a Frequency Shift Keying modulated signal comprising a synchronisation sequence, and downconverts the Frequency Shift Keying modulated signal to provide baseband in-phase and quadrature signals. A pulse generator receives the in-phase and quadrature signals, generates an in-phase pulse signal ILEAD comprising pulses aligned with edges of the baseband in-phase and quadrature signals when the baseband in-phase signal leads the baseband quadrature signal, and generates a quadrature pulse signal QLEAD comprising pulses aligned with edges of the baseband quadrature and in-phase signals when the baseband quadrature signal leads the baseband in-phase signal. A frequency corrector receives the in-phase and quadrature pulse signals during receipt of the synchronisation sequence, compares the pulse signals to a target, and generates a control signal for controlling the local signal generator in dependence upon the result of the comparison."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Automatic frequency correction","description":"A receiver front end receives a local frequency reference signal and a Frequency Shift Keying modulated signal comprising a synchronisation sequence, and downconverts the Frequency Shift Keying modula","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8483322","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-8483322","citation_suggestion":"Patentable. \"Automatic frequency correction\" (US-8483322). https://patentable.app/patents/US-8483322","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8483322","json":"https://patentable.app/api/llm-context/US-8483322","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T20:56:55.951Z"}