{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11259266","patent":{"patent_number":"US-11259266","title":"Distance estimation device and method and signal-power calibration method","assignee":null,"inventors":[],"filing_date":"2019-12-27T00:00:00.000Z","publication_date":"2022-02-22T00:00:00.000Z","cpc_codes":["H04B","H04W","H04B","H04B","H04L","H04L","H04W","H04W"],"num_claims":17,"abstract":"An estimation device is provided. The distance estimation device includes a calibration circuit and a distance estimation circuit. The calibration circuit may receive channel state information (CSI), and obtain signal-path power and noise-path power according to the CSI, and perform calculation to divide the signal-path power by the noise-path power to obtain a signal-power calibration value. The distance estimation circuit is coupled to the calibration circuit. The distance estimation circuit receives a received signal strength indication (RSSI) and the signal-power calibration value, and obtains a path-loss exponent according to the RSSI and the signal-power calibration value, and obtains a distance-estimation value according to the signal-power calibration value and the path-loss exponent."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Distance estimation device and method and signal-power calibration method","description":"An estimation device is provided. The distance estimation device includes a calibration circuit and a distance estimation circuit. The calibration circuit may receive channel state information (CSI), ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11259266","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-11259266","citation_suggestion":"Patentable. \"Distance estimation device and method and signal-power calibration method\" (US-11259266). https://patentable.app/patents/US-11259266","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11259266","json":"https://patentable.app/api/llm-context/US-11259266","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T07:34:58.866Z"}