{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11477059","patent":{"patent_number":"US-11477059","title":"Circuits and methods for detecting and unlocking edge-phase lock","assignee":null,"inventors":[],"filing_date":"2021-11-22T00:00:00.000Z","publication_date":"2022-10-18T00:00:00.000Z","cpc_codes":["H04L","H04L","H04B","H04B","H04L","H04L","H04L","H04L","H04L"],"num_claims":20,"abstract":"A receiver samples an analog, multi-level, pulse-amplitude-modulated signal using a clock-and-data recovery circuit (CDR) that samples the signal against adaptively calibrated symbol-decision thresholds in time with a clock signal that is phased aligned with and locked to the signal. The CDR can erroneously align the clock signal to inter-symbol edges of the signal, a condition called “edge lock,” rather than on the symbols themselves. A transition-type detector senses the edge-lock condition and unlocks the CDR, which can then realign the clock signal, this time on the symbols rather than the inter-symbol edges. The receiver can also respond to the edge-lock condition by kick-starting a shift of symbol-decision threshold that helps the CDR settle more quickly on correct symbol-decision thresholds."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Circuits and methods for detecting and unlocking edge-phase lock","description":"A receiver samples an analog, multi-level, pulse-amplitude-modulated signal using a clock-and-data recovery circuit (CDR) that samples the signal against adaptively calibrated symbol-decision threshol","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11477059","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-11477059","citation_suggestion":"Patentable. \"Circuits and methods for detecting and unlocking edge-phase lock\" (US-11477059). https://patentable.app/patents/US-11477059","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11477059","json":"https://patentable.app/api/llm-context/US-11477059","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T21:25:11.754Z"}