{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9668144","patent":{"patent_number":"US-9668144","title":"Method of shaping the spectrum of an input bitstream","assignee":null,"inventors":[],"filing_date":"2015-02-25T00:00:00.000Z","publication_date":"2017-05-30T00:00:00.000Z","cpc_codes":["H04W","H04L","H04L","H04L","H04L","H04L","H04L","H04L"],"num_claims":23,"abstract":"Signal processing methods, signal processing device(s), signal processing system(s) and non-transitory information storage means are provided herein for shaping the spectrum of an input bitstream. In at least one embodiment, a signal processing method includes performing a plurality of line coding steps on respective parts of an input bitstream to obtain a plurality of respective line-coded signals, and multiplexing the plurality of line-coded signals to obtain a spectrum-shaped output signal. Embodiments provide a modulation scheme that makes it possible to shape the spectrum of a bitstream to be transmitted in order to match a channel transfer function of a communication medium."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method of shaping the spectrum of an input bitstream","description":"Signal processing methods, signal processing device(s), signal processing system(s) and non-transitory information storage means are provided herein for shaping the spectrum of an input bitstream. In ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9668144","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-9668144","citation_suggestion":"Patentable. \"Method of shaping the spectrum of an input bitstream\" (US-9668144). https://patentable.app/patents/US-9668144","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9668144","json":"https://patentable.app/api/llm-context/US-9668144","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:22:49.415Z"}