{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9794121","patent":{"patent_number":"US-9794121","title":"System upgrade method and device","assignee":null,"inventors":[],"filing_date":"2016-06-22T00:00:00.000Z","publication_date":"2017-10-17T00:00:00.000Z","cpc_codes":["H04L","H04B","H04B","H04B","H04Q","H04Q","H04Q","H04Q"],"num_claims":18,"abstract":"Embodiments of the present invention provide a system upgrade method and device, which can reduce a quantity and a time of service interruptions when an ONT and an OLT are upgraded. The method includes: detecting an upgrade triggering event, where the upgrade triggering event is used to instruct an optical network terminal ONT and an optical line terminal OLT to perform a concurrent upgrade; resetting the ONT to activate a preloaded ONT upgrade program; and restoring a service with the OLT. According to the embodiments of the present invention, an ONT and an OLT basically concurrently or synchronously perform upgrading and resetting, that is, a concurrent upgrade, so that a quantity and a time of service interruptions caused when the ONT and the OLT are upgraded are reduced, thereby improving user experience."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"System upgrade method and device","description":"Embodiments of the present invention provide a system upgrade method and device, which can reduce a quantity and a time of service interruptions when an ONT and an OLT are upgraded. The method include","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9794121","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-9794121","citation_suggestion":"Patentable. \"System upgrade method and device\" (US-9794121). https://patentable.app/patents/US-9794121","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9794121","json":"https://patentable.app/api/llm-context/US-9794121","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:15:22.123Z"}