{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9599703","patent":{"patent_number":"US-9599703","title":"Methods and systems for determining a range rate for a backscatter transponder","assignee":null,"inventors":[],"filing_date":"2014-08-11T00:00:00.000Z","publication_date":"2017-03-21T00:00:00.000Z","cpc_codes":["G01S","G01S","G01S","G01S","G01S","G06K","G06K","G06K","G08G"],"num_claims":17,"abstract":"Methods for determining a range rate of a backscatter transponder and readers implementing the methods are described. The reader transmits a continuous wave signal and receives a modulated reflected response signal from the transponder, mixes the modulated reflected response signal with the carrier frequency to produce a downconverted signal, bandpass filters the downconverted signal to pass a bandpass filtered signal containing at least the modulation frequency, applies a non-linear amplitude transfer function to produce a modulation-suppressed signal, and measures the frequency of the modulation-suppressed signal and determines the range rate from the measured frequency."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Methods and systems for determining a range rate for a backscatter transponder","description":"Methods for determining a range rate of a backscatter transponder and readers implementing the methods are described. The reader transmits a continuous wave signal and receives a modulated reflected r","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9599703","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-9599703","citation_suggestion":"Patentable. \"Methods and systems for determining a range rate for a backscatter transponder\" (US-9599703). https://patentable.app/patents/US-9599703","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9599703","json":"https://patentable.app/api/llm-context/US-9599703","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:39:55.583Z"}