{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9684072","patent":{"patent_number":"US-9684072","title":"Range determination apparatus and method","assignee":null,"inventors":[],"filing_date":"2011-09-16T00:00:00.000Z","publication_date":"2017-06-20T00:00:00.000Z","cpc_codes":["G01S","G01S","G01S","G01S","G01S","G01S","G01S","G01S","G01S","G01S","G01S","G01S","G01S","G01S","G01S"],"num_claims":21,"abstract":"Embodiments of the invention provide apparatus (100) for detecting an erroneous measurement of a range of a target object 20 from a subject object 5. A transmitter transmits a signal (111S) having a first frequency from the subject object (5) to the target object (20). A detector (113) detects a portion of the signal (113S) reflected from the target object (20) back to the subject object (5); a controller is configured to determine the range (202) of the target object (20) from the subject object (5) by reference to a time of flight of the portion of the signal (111S), (113S) from the transmitter (111) to the detector (113); determine the rate of change of the range (203) by reference to a difference between the first frequency and an apparent frequency of the reflected portion of the signal (113S) detected by the detector; and provide an indication (206) that an erroneous measurement of range has been made if the range (202) increases while the rate of change of range (203) is negative."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Range determination apparatus and method","description":"Embodiments of the invention provide apparatus (100) for detecting an erroneous measurement of a range of a target object 20 from a subject object 5. A transmitter transmits a signal (111S) having a f","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9684072","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-9684072","citation_suggestion":"Patentable. \"Range determination apparatus and method\" (US-9684072). https://patentable.app/patents/US-9684072","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9684072","json":"https://patentable.app/api/llm-context/US-9684072","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:15:15.420Z"}