{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9727763","patent":{"patent_number":"US-9727763","title":"Modulation index (depth) based grouping, addressing, and fingerprinting RFID tags","assignee":null,"inventors":[],"filing_date":"2014-12-31T00:00:00.000Z","publication_date":"2017-08-08T00:00:00.000Z","cpc_codes":["G06K","G06K","G06K"],"num_claims":17,"abstract":"A method of addressing one or more RFID devices within a group of RFID devices includes transmitting a command to respond to the group at a first modulation depth. The method further includes receiving a response from a first sub-group of RFID devices in the group that have a minimum modulation depth less than or equal to the first modulation depth. The method further includes transmitting the command to respond to the group at a second modulation depth higher than the first modulation depth. The method further includes receiving a response from a second sub-group of RFID devices within the group that have a minimum modulation depth less than or equal to the second modulation depth. The method is also directed to authenticating RFIDs by comparing a measured minimum modulation depth to a known minimum modulation depth."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Modulation index (depth) based grouping, addressing, and fingerprinting RFID tags","description":"A method of addressing one or more RFID devices within a group of RFID devices includes transmitting a command to respond to the group at a first modulation depth. The method further includes receivin","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9727763","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-9727763","citation_suggestion":"Patentable. \"Modulation index (depth) based grouping, addressing, and fingerprinting RFID tags\" (US-9727763). https://patentable.app/patents/US-9727763","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9727763","json":"https://patentable.app/api/llm-context/US-9727763","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T13:30:20.332Z"}