{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9722785","patent":{"patent_number":"US-9722785","title":"Method and apparatus for quantum cryptographic communication","assignee":null,"inventors":[],"filing_date":"2015-01-06T00:00:00.000Z","publication_date":"2017-08-01T00:00:00.000Z","cpc_codes":["H04L","H04B","H04L"],"num_claims":6,"abstract":"An apparatus for quantum cryptographic communication includes a light source configured to generate an optical pulse which is transmitted to a plurality of quantum code sending devices, and a quantum entanglement measuring unit configured to receive the optical signal generated from each of the plurality of quantum code sending devices and measure a relation among quantum states of the optical signals received from the plurality of quantum code sending devices; the optical signal being generated by encoding a key to a quantum state of the optical pulse. The apparatus for quantum cryptographic communication may further include a signal direction determining unit, a reflector for reflecting the optical pulse or the optical signal, an arbitrary phase shifter, or a modulator for encoding a digital signal corresponding to the key to the optical pulse."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for quantum cryptographic communication","description":"An apparatus for quantum cryptographic communication includes a light source configured to generate an optical pulse which is transmitted to a plurality of quantum code sending devices, and a quantum ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9722785","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-9722785","citation_suggestion":"Patentable. \"Method and apparatus for quantum cryptographic communication\" (US-9722785). https://patentable.app/patents/US-9722785","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9722785","json":"https://patentable.app/api/llm-context/US-9722785","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T11:21:43.793Z"}