{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9846235","patent":{"patent_number":"US-9846235","title":"Friend or foe identification system and method","assignee":null,"inventors":[],"filing_date":"2013-08-08T00:00:00.000Z","publication_date":"2017-12-19T00:00:00.000Z","cpc_codes":["G01S","G01S","G01S","G01S","G01S","G01S","G01S","G01S","G01S","G01S"],"num_claims":22,"abstract":"There are provided methods and systems for producing a wave-beam having substantially constant lateral extent over a desired range of distances, and interrogation and response system and methods utilizing the same. The method for producing a wave-beam having substantially constant lateral extent includes generating a plurality of at least partially incoherent constituent wave-beams having different divergences and directing the plurality constituent wave-beams to propagate along substantially parallel propagation axes such that the constituent wave-beams at least partially overlap and superpose to form a combined wave-beam. The divergences and intensities of the constituent wave-beams are selected such that the combined wave-beam has a desired substantially constant extent over a desired range of distances along said propagation axes."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Friend or foe identification system and method","description":"There are provided methods and systems for producing a wave-beam having substantially constant lateral extent over a desired range of distances, and interrogation and response system and methods utili","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9846235","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-9846235","citation_suggestion":"Patentable. \"Friend or foe identification system and method\" (US-9846235). https://patentable.app/patents/US-9846235","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9846235","json":"https://patentable.app/api/llm-context/US-9846235","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T04:57:20.917Z"}