{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9643571","patent":{"patent_number":"US-9643571","title":"Field measurement compensation","assignee":null,"inventors":[],"filing_date":"2014-05-06T00:00:00.000Z","publication_date":"2017-05-09T00:00:00.000Z","cpc_codes":["G07C","H04B","H04L","H04W","H04W","H04W","G07C"],"num_claims":9,"abstract":"A system and method of locating a key are disclosed. The key is configured to communicate with a base station through a plurality of antennas that are coupled to the base station. The method includes turning off each of the plurality of antennas, turning on one of the plurality of antennas, measuring a first received signal strength, turning off the one of the plurality of antennas and measuring a second received signal strength. The key is determined to be located within a predefined area if the difference between the first received signal strength and the second received signal strength is above a preset threshold."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Field measurement compensation","description":"A system and method of locating a key are disclosed. The key is configured to communicate with a base station through a plurality of antennas that are coupled to the base station. The method includes ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9643571","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-9643571","citation_suggestion":"Patentable. \"Field measurement compensation\" (US-9643571). https://patentable.app/patents/US-9643571","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9643571","json":"https://patentable.app/api/llm-context/US-9643571","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:59:34.696Z"}