{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9704085","patent":{"patent_number":"US-9704085","title":"Method and apparatus for detecting RF field strength","assignee":null,"inventors":[],"filing_date":"2015-03-11T00:00:00.000Z","publication_date":"2017-07-11T00:00:00.000Z","cpc_codes":["G06K","H04B","H04B"],"num_claims":11,"abstract":"A method and apparatus for detecting RF field strength. A field strength reference generator develops a field strength reference current as a function of a field strength of a received RF signal; and a field strength quantizer develops a digital field-strength value indicative of the field strength reference current. In one embodiment, detected field strength is used to dynamically vary the impedance of a tank circuit whereby, over time, induced current is maximized. In another embodiment, using the quantized field strength to sense changes to the environment to which the RFID tag is exposed."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for detecting RF field strength","description":"A method and apparatus for detecting RF field strength. A field strength reference generator develops a field strength reference current as a function of a field strength of a received RF signal; and ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9704085","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-9704085","citation_suggestion":"Patentable. \"Method and apparatus for detecting RF field strength\" (US-9704085). https://patentable.app/patents/US-9704085","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9704085","json":"https://patentable.app/api/llm-context/US-9704085","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:33:51.838Z"}