{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11489550","patent":{"patent_number":"US-11489550","title":"Filtering method and apparatus","assignee":null,"inventors":[],"filing_date":"2021-06-09T00:00:00.000Z","publication_date":"2022-11-01T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B"],"num_claims":16,"abstract":"A filtering method and apparatus are provided, and the method includes: performing spectrum shifting on a first signal to obtain a second signal, where the first signal includes a first valid signal band and a first to-be-suppressed signal band, a demarcation point of the first valid signal band and the first to-be-suppressed signal band in the first signal is a first boundary point, the first boundary point corresponds to a second boundary point in the second signal, a frequency of the second boundary point is equal to a frequency of a first side frequency point of the filter, and a frequency range corresponding to the first valid signal band in the second signal falls within a frequency range corresponding to a passband of the filter (S301); and filtering the second signal by using the filter, to obtain the first valid signal band (S302)."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Filtering method and apparatus","description":"A filtering method and apparatus are provided, and the method includes: performing spectrum shifting on a first signal to obtain a second signal, where the first signal includes a first valid signal b","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11489550","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-11489550","citation_suggestion":"Patentable. \"Filtering method and apparatus\" (US-11489550). https://patentable.app/patents/US-11489550","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11489550","json":"https://patentable.app/api/llm-context/US-11489550","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T18:25:17.361Z"}