{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8503595","patent":{"patent_number":"US-8503595","title":"Data judgment/phase comparison circuit","assignee":null,"inventors":[],"filing_date":"2009-09-29T00:00:00.000Z","publication_date":"2013-08-06T00:00:00.000Z","cpc_codes":["H04L","H04L"],"num_claims":11,"abstract":"The invention relates to a clock generation circuit and a signal reproduction circuit including the clock generation circuit, and, more particularly, the invention provides a data judgment/phase comparison circuit capable of performing both of data judgment and phase comparison by a single-phase clock, and provides a CDR (Clock Data Recovery) circuit including the data judgment/phase comparison circuit. The same data and clock are inputted to two data judging units C_GOOD and C_BAD each having a different data determination period (setup/hold time) required for correctly judging a data, and an output of the data judging unit C_GOOD having a shorter required data determination period is taken as a data output of the data judgment/phase comparison circuit. When the outputs of both of the data judging units are different from each other, a signal Early indicating that a clock phase is too early or a signal Late indicating that the clock phase is too late is outputted. Depending on a relation among data outputs of total three symbols obtained by combining a symbol and symbols previous and subsequent thereto, it is selected that either the Early or the Late is to be outputted by a decision logic EL_LOGIC."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Data judgment/phase comparison circuit","description":"The invention relates to a clock generation circuit and a signal reproduction circuit including the clock generation circuit, and, more particularly, the invention provides a data judgment/phase compa","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8503595","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-8503595","citation_suggestion":"Patentable. \"Data judgment/phase comparison circuit\" (US-8503595). https://patentable.app/patents/US-8503595","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8503595","json":"https://patentable.app/api/llm-context/US-8503595","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T14:48:17.416Z"}