{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8488697","patent":{"patent_number":"US-8488697","title":"Universal timing recovery circuit","assignee":null,"inventors":[],"filing_date":"2011-05-06T00:00:00.000Z","publication_date":"2013-07-16T00:00:00.000Z","cpc_codes":["H04L"],"num_claims":12,"abstract":"A timing recovery system that provides a timing estimate between a transmitter clock and a receiver clock. The system includes a down-converter that converts a received intermediate frequency signal in the receiver and down-converts, using Fs/4 down-conversion, the received signal into baseband in-phase and quadrature phase signals. The baseband in-phase and quadrature phase signals are sent to a direct down-converter that frequency shifts the in-phase and quadrature phase. The frequency-shifted in-phase and quadrature phase baseband signals are then low-pass filtered in order to isolate the frequency components of interest, reduce noise, and remove zeros that are artifacts of the Fs/4 down-conversion. The signals are sent to a square-law non-linearity circuit that provides squaring non-linearity to generate non-linear in-phase and quadrature phase signals. The non-linear in-phase and quadrature phase signals are sent to a single-pole, low-pass post-filter circuit that generates the timing estimate."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Universal timing recovery circuit","description":"A timing recovery system that provides a timing estimate between a transmitter clock and a receiver clock. The system includes a down-converter that converts a received intermediate frequency signal i","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8488697","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-8488697","citation_suggestion":"Patentable. \"Universal timing recovery circuit\" (US-8488697). https://patentable.app/patents/US-8488697","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8488697","json":"https://patentable.app/api/llm-context/US-8488697","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T20:07:54.861Z"}