{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8461965","patent":{"patent_number":"US-8461965","title":"Portable radio frequency identification (RFID) reader","assignee":null,"inventors":[],"filing_date":"2010-01-13T00:00:00.000Z","publication_date":"2013-06-11T00:00:00.000Z","cpc_codes":["G01S","G01S","G01S","G01S"],"num_claims":18,"abstract":"A particular portable radio frequency identification (RFID) reader includes an active antenna array including a plurality of antenna elements to receive RFID signals from RFID devices. The antenna elements include control circuitry to control a beam pattern generated by the active antenna array. The portable RFID reader further includes sum circuitry and difference circuitry. The sum circuitry is operable to determine a sum signal by summing the RFID signals received by at least two of the plurality of antenna elements. The difference circuitry is operable to determine a difference signal between the RFID signals received by at least two of the plurality of antenna elements. The portable RFID reader also includes a controller to electronically steer the beam pattern and to determine a direction from the RFID reader to a particular RFID device."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Portable radio frequency identification (RFID) reader","description":"A particular portable radio frequency identification (RFID) reader includes an active antenna array including a plurality of antenna elements to receive RFID signals from RFID devices. The antenna ele","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8461965","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-8461965","citation_suggestion":"Patentable. \"Portable radio frequency identification (RFID) reader\" (US-8461965). https://patentable.app/patents/US-8461965","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8461965","json":"https://patentable.app/api/llm-context/US-8461965","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T14:08:58.004Z"}