{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8467479","patent":{"patent_number":"US-8467479","title":"Apparatus and method for estimating I/Q unbalance parameters in OFDM receiver","assignee":null,"inventors":[],"filing_date":"2009-02-19T00:00:00.000Z","publication_date":"2013-06-18T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L"],"num_claims":12,"abstract":"Provided are an apparatus and a method for estimating I/Q unbalance parameters in an OFDM receiver. The apparatus includes an unbalance parameter estimator and an I/Q unbalance compensator. The unbalance parameter estimator estimates an amplitude difference and a phase difference depending on positions of pilot tones in a preamble of a received signal. The I/Q unbalance compensator compensates for an I/Q unbalance using the amplitude difference and the phase difference estimated by the unbalance parameter estimator."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Apparatus and method for estimating I/Q unbalance parameters in OFDM receiver","description":"Provided are an apparatus and a method for estimating I/Q unbalance parameters in an OFDM receiver. The apparatus includes an unbalance parameter estimator and an I/Q unbalance compensator. The unbala","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8467479","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-8467479","citation_suggestion":"Patentable. \"Apparatus and method for estimating I/Q unbalance parameters in OFDM receiver\" (US-8467479). https://patentable.app/patents/US-8467479","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8467479","json":"https://patentable.app/api/llm-context/US-8467479","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T20:58:30.935Z"}