{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9748986","patent":{"patent_number":"US-9748986","title":"RF telemetry receiver circuit for active medical implants","assignee":null,"inventors":[],"filing_date":"2015-02-23T00:00:00.000Z","publication_date":"2017-08-29T00:00:00.000Z","cpc_codes":["A61N","A61N","A61N","H04B","H04B","A61N"],"num_claims":20,"abstract":"An RF telemetry receiver circuit for active implantable medical devices. The baseband binary signal (Db) is doubly modulated by a low frequency carrier (Fm) and by a high frequency carrier (Fc). The receiver circuit is a semi-passive non heterodyne circuit, devoid of a local oscillator and mixer. It comprises an antenna (104), a passive bandpass filter (108) centered on the high-frequency carrier (Fc), a passive envelope detector (120-126) and a digital demodulator (116). The envelope detector comprises a first diode circuit (120) of non-coherent detection, an active bandpass filter (122) centered on a frequency (2.Fm) twice the low frequency carrier and having a bandwidth (2.Db) twice the baseband bandwidth, and a second diode circuit (124) of non-coherent detection, outputting a baseband signal applied to the digital demodulation stage (116)."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"RF telemetry receiver circuit for active medical implants","description":"An RF telemetry receiver circuit for active implantable medical devices. The baseband binary signal (Db) is doubly modulated by a low frequency carrier (Fm) and by a high frequency carrier (Fc). The r","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9748986","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-9748986","citation_suggestion":"Patentable. \"RF telemetry receiver circuit for active medical implants\" (US-9748986). https://patentable.app/patents/US-9748986","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9748986","json":"https://patentable.app/api/llm-context/US-9748986","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T04:07:55.771Z"}