{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9661401","patent":{"patent_number":"US-9661401","title":"Locating a backscatter-based transponder","assignee":null,"inventors":[],"filing_date":"2014-02-03T00:00:00.000Z","publication_date":"2017-05-23T00:00:00.000Z","cpc_codes":["H04Q","G06K","G06K"],"num_claims":24,"abstract":"A method and apparatus for locating a transponder is provided. A carrier signal is transmitted by a base station and a transponder transmits a locating signal that is generated through phase modulation and backscattering of the carrier signal sent by the base station when the transponder is within a transmission range of the base station, whereby the transponder is located on the basis of the locating signal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Locating a backscatter-based transponder","description":"A method and apparatus for locating a transponder is provided. A carrier signal is transmitted by a base station and a transponder transmits a locating signal that is generated through phase modulatio","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9661401","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-9661401","citation_suggestion":"Patentable. \"Locating a backscatter-based transponder\" (US-9661401). https://patentable.app/patents/US-9661401","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9661401","json":"https://patentable.app/api/llm-context/US-9661401","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:43:25.477Z"}