{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9760672","patent":{"patent_number":"US-9760672","title":"Circuitry and method for critical path timing speculation to enable process variation compensation via voltage scaling","assignee":null,"inventors":[],"filing_date":"2015-07-04T00:00:00.000Z","publication_date":"2017-09-12T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F"],"num_claims":18,"abstract":"A critical-path timing sensor detects set-up timing failures from a functional critical path to a path flip-flop. The functional critical path carries test data during test mode, and normal data during normal device operation. The path flip-flop's D input and Q output are compared by an exclusive-OR (XOR) gate and sampled by an early capture flip-flop that is clocked by a delayed clock, sampling D and Q just after the path flip-flop is clocked. When set-up time fails, D and Q differ just after the clock edge and a timing failure is latched. Timing failures activate a controller to increase VDD, while VDD is reduced in the absence of timing failures. Process variations are accounted for, allowing for lower power or faster operation. A margin delay between the functional critical path end and the early capture flip-flop detects timing failures before they occur in the path flip-flop."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Circuitry and method for critical path timing speculation to enable process variation compensation via voltage scaling","description":"A critical-path timing sensor detects set-up timing failures from a functional critical path to a path flip-flop. The functional critical path carries test data during test mode, and normal data durin","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9760672","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-9760672","citation_suggestion":"Patentable. \"Circuitry and method for critical path timing speculation to enable process variation compensation via voltage scaling\" (US-9760672). https://patentable.app/patents/US-9760672","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9760672","json":"https://patentable.app/api/llm-context/US-9760672","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T17:23:06.741Z"}