{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9780989","patent":{"patent_number":"US-9780989","title":"Spectrum shaping for OFDM/DMT","assignee":null,"inventors":[],"filing_date":"2013-05-08T00:00:00.000Z","publication_date":"2017-10-03T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L"],"num_claims":19,"abstract":"There is provided spectrum shaping of a signal. A frequency-domain representation of the signal to be spectrum-shaped is provided. The signal is associated with a set of constellation points having a minimum distance. A spectrum-shaped signal is determined by altering a proper subset of the constellation points while maintaining the minimum distance between all of the constellation points. The spectrum-shaped signal is transformed into a time-domain signal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Spectrum shaping for OFDM/DMT","description":"There is provided spectrum shaping of a signal. A frequency-domain representation of the signal to be spectrum-shaped is provided. The signal is associated with a set of constellation points having a ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9780989","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-9780989","citation_suggestion":"Patentable. \"Spectrum shaping for OFDM/DMT\" (US-9780989). https://patentable.app/patents/US-9780989","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9780989","json":"https://patentable.app/api/llm-context/US-9780989","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:13:43.735Z"}