{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9766682","patent":{"patent_number":"US-9766682","title":"Wakeup time system using drift estimation","assignee":null,"inventors":[],"filing_date":"2015-01-26T00:00:00.000Z","publication_date":"2017-09-19T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F"],"num_claims":21,"abstract":"An apparatus includes a sleep clock circuit that generates a sleep clock signal and an accurate clock circuit that, when on, generates an accurate clock signal. The apparatus is configured to enter a sleep mode, generate sleep clock measurements by measuring the sleep clock signal using the accurate clock signal during an initial sleep interval, estimate a cumulative error using the sleep clock measurements, and determine a final sleep interval using the cumulative error. A method includes determining a duration of an initial sleep interval and generating measurements of a sleep clock signal using an accurate clock signal. The measurements of the sleep clock signal correspond to sampling intervals within the initial sleep interval. A cumulative error value is generated according to the measurements, and a duration of a final sleep interval is determined according to the cumulative error value."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Wakeup time system using drift estimation","description":"An apparatus includes a sleep clock circuit that generates a sleep clock signal and an accurate clock circuit that, when on, generates an accurate clock signal. The apparatus is configured to enter a ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9766682","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-9766682","citation_suggestion":"Patentable. \"Wakeup time system using drift estimation\" (US-9766682). https://patentable.app/patents/US-9766682","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9766682","json":"https://patentable.app/api/llm-context/US-9766682","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:16:34.417Z"}