{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11251947","patent":{"patent_number":"US-11251947","title":"Encrypted data transmission in optical- and radio-access networks based on quantum key distribution","assignee":null,"inventors":[],"filing_date":"2020-05-08T00:00:00.000Z","publication_date":"2022-02-15T00:00:00.000Z","cpc_codes":["H04L","H04B","H04B","H04B","H04J","H04L","H04L","H04L","H04L"],"num_claims":21,"abstract":"A method for quantum-key-distribution-based encrypted data transmission in an optical/radio-access network, having a plurality of end nodes, includes, at a first node of the network: (a) via an optical quantum channel, exchanging photonic qubits with a second node, wherein the photonic qubits are processable to derive therefrom an initial key such that each of the first and second nodes have a copy of the initial key, (b) via a classical channel, exchanging a series of encrypted keys with the second node, wherein a first encrypted key is encrypted by the initial key, and each subsequent encrypted key is encrypted by a preceding encrypted key, and (c) via the classical channel, exchanging encrypted data with the second node, wherein the encrypted data is encrypted by a last encrypted key in the series of encrypted keys. One, but not both, of the first and second nodes is an end node."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Encrypted data transmission in optical- and radio-access networks based on quantum key distribution","description":"A method for quantum-key-distribution-based encrypted data transmission in an optical/radio-access network, having a plurality of end nodes, includes, at a first node of the network: (a) via an optica","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11251947","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-11251947","citation_suggestion":"Patentable. \"Encrypted data transmission in optical- and radio-access networks based on quantum key distribution\" (US-11251947). https://patentable.app/patents/US-11251947","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11251947","json":"https://patentable.app/api/llm-context/US-11251947","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T17:25:57.273Z"}