{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-12001908","patent":{"patent_number":"US-12001908","title":"Method for identifying a passive RFID card","assignee":null,"inventors":[],"filing_date":"2021-01-15T00:00:00.000Z","publication_date":"2024-06-04T00:00:00.000Z","cpc_codes":["G06K","G06K","H02J","H02J","H02J"],"num_claims":12,"abstract":"Disclosed is a method for identifying an RFID card as a passive or an active RFID card comprising sending a first RFID command, while keeping an RFID field on; receiving, from the RFID card a corresponding first answering signal; populating a first list with each corresponding first answering signal from the RFID card; sending a second RFID command, wherein the RFID field is paused for a predefined pausing period after sending the second RFID command; receiving, from at least zero active RFID cards, a corresponding second answering signal; populating a second list with each corresponding second answering signal from the at least zero active RFID cards; comparing the entries of the first list with the entries of the second list; identifying each of the at least zero passive RFID cards by having the corresponding first answering signal in the first list but not in the second list."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method for identifying a passive RFID card","description":"Disclosed is a method for identifying an RFID card as a passive or an active RFID card comprising sending a first RFID command, while keeping an RFID field on; receiving, from the RFID card a correspo","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-12001908","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-12001908","citation_suggestion":"Patentable. \"Method for identifying a passive RFID card\" (US-12001908). https://patentable.app/patents/US-12001908","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-12001908","json":"https://patentable.app/api/llm-context/US-12001908","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T19:13:23.712Z"}