{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11519996","patent":{"patent_number":"US-11519996","title":"System and method for ultra-high-resolution ranging using RFID","assignee":null,"inventors":[],"filing_date":"2019-10-31T00:00:00.000Z","publication_date":"2022-12-06T00:00:00.000Z","cpc_codes":["G01S","G01S","G01S","G01S","G01S","G01S","G01S"],"num_claims":22,"abstract":"A radio-frequency method for range finding includes modulating a reference signal having an intermediate frequency to a downlink signal having a carrier frequency using a clock signal. The downlink signal is transmitted to a tag using a transceiver. An uplink signal backscattered from the tag is received and demodulated using the clock signal. The uplink signal has a frequency that is a harmonic of the carrier frequency. A distance between the tag and the transceiver is calculated based on a phase of the demodulated uplink signal. A system for range finding includes a transceiver and a processor. The transceiver modulates a reference signal to a downlink signal and transmits the downlink signal. The transceiver receives and demodulates an uplink signal. The processor is configured to receive the demodulated uplink signal and calculate a distance between the tag and the transceiver using a phase of the demodulated uplink signal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"System and method for ultra-high-resolution ranging using RFID","description":"A radio-frequency method for range finding includes modulating a reference signal having an intermediate frequency to a downlink signal having a carrier frequency using a clock signal. The downlink si","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11519996","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-11519996","citation_suggestion":"Patentable. \"System and method for ultra-high-resolution ranging using RFID\" (US-11519996). https://patentable.app/patents/US-11519996","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11519996","json":"https://patentable.app/api/llm-context/US-11519996","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T13:15:52.789Z"}