{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9768897","patent":{"patent_number":"US-9768897","title":"Method for searching for a useful signal in a multiplexing band","assignee":null,"inventors":[],"filing_date":"2013-07-05T00:00:00.000Z","publication_date":"2017-09-19T00:00:00.000Z","cpc_codes":["H04J","H04B","H04B","H04L","H04J","H04W"],"num_claims":8,"abstract":"A method of searching for the presence of a useful signal of predefined spectral width ΔB in a multiplexing band having a spectral width greater than ΔB, includes calculating a frequency signal representative of a power spectral density in the multiplexing band, calculating a non-useful signal by filtering the frequency signal by means of a filter capable of suppressing all or part of signals having a spectral width equal to or smaller than ΔB, calculating a power ratio signal representative of the ratio of the frequency signal to the non-useful signal, and comparing the power ratio signal with a predefined threshold value. The method may be employed using a computer program product, a receiver unit, and/or a station of a digital telecommunications system comprising such a receiver unit."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method for searching for a useful signal in a multiplexing band","description":"A method of searching for the presence of a useful signal of predefined spectral width ΔB in a multiplexing band having a spectral width greater than ΔB, includes calculating a frequency signal repres","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9768897","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-9768897","citation_suggestion":"Patentable. \"Method for searching for a useful signal in a multiplexing band\" (US-9768897). https://patentable.app/patents/US-9768897","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9768897","json":"https://patentable.app/api/llm-context/US-9768897","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:24:17.566Z"}