{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9768855","patent":{"patent_number":"US-9768855","title":"Multi-stage isolation sub-system for a remote antenna unit","assignee":null,"inventors":[],"filing_date":"2015-01-21T00:00:00.000Z","publication_date":"2017-09-19T00:00:00.000Z","cpc_codes":["H04B","H04B","H04L","H04L","H04W","H04L"],"num_claims":20,"abstract":"Certain features relate to a remote antenna unit having a multi-stage isolation sub-system for isolating uplink and downlink signal paths. A multi-stage isolation sub-system in the remote antenna unit can include a first stage device that is configured to generate a cancellation signal for canceling unwanted downlink signals received at the uplink antenna. The isolation sub-system can also include a second stage device configured to generate a cancellation signal that attenuates residual noise and intermodulation products generated in the downlink path and received in the uplink path. The multi-stage isolation sub-system can combine the cancellation signals with signals received on the uplink path in order to cancel or attenuate downlink leakage signals and residual noise present on the uplink path."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Multi-stage isolation sub-system for a remote antenna unit","description":"Certain features relate to a remote antenna unit having a multi-stage isolation sub-system for isolating uplink and downlink signal paths. A multi-stage isolation sub-system in the remote antenna unit","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9768855","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-9768855","citation_suggestion":"Patentable. \"Multi-stage isolation sub-system for a remote antenna unit\" (US-9768855). https://patentable.app/patents/US-9768855","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9768855","json":"https://patentable.app/api/llm-context/US-9768855","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:30:11.947Z"}