{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8509687","patent":{"patent_number":"US-8509687","title":"Quiet spot detection for FM transmission","assignee":null,"inventors":[],"filing_date":"2009-12-15T00:00:00.000Z","publication_date":"2013-08-13T00:00:00.000Z","cpc_codes":["H04B","H04B"],"num_claims":18,"abstract":"Embodiments of the present disclosure provide a device comprising a receiver port configured to be operatively coupled to a local receiver antenna; a transmitter port configured to be operatively coupled to a local transmitter antenna and to receive signals received by the local transmitter antenna at least for a portion of time while the local receiver antenna is not operatively coupled to the receiver port; and a quiet spot determination unit configured to receive signals received by the local receiver antenna at least for a portion of time while the local receiver antenna is operatively coupled to the receiver port, receive signals received by the local transmitter antenna at least for the portion of time while the local receiver antenna is not operatively coupled to the receiver port, and determine a quiet spot frequency. Other embodiments are also described and claimed."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Quiet spot detection for FM transmission","description":"Embodiments of the present disclosure provide a device comprising a receiver port configured to be operatively coupled to a local receiver antenna; a transmitter port configured to be operatively coup","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8509687","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-8509687","citation_suggestion":"Patentable. \"Quiet spot detection for FM transmission\" (US-8509687). https://patentable.app/patents/US-8509687","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8509687","json":"https://patentable.app/api/llm-context/US-8509687","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T21:09:58.579Z"}