{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11265086","patent":{"patent_number":"US-11265086","title":"Low rate loss bit-level distribution matcher for constellation shaping","assignee":null,"inventors":[],"filing_date":"2019-12-19T00:00:00.000Z","publication_date":"2022-03-01T00:00:00.000Z","cpc_codes":["H04B","H04J","G06F","H04B","H04B","H04B","H04J","H04J"],"num_claims":20,"abstract":"Systems and methods for constellation shaping using low rate loss bit-level distribution matchers include receiving blocks of input bits and, for each input block of a predetermined size, assigning a respective codeword of a predetermined output block size. The number of bits of a given bit value in the codeword is dependent on a predetermined target probability distribution. A one-to-one mapping exists between each possible combination of input bits and a codeword for input blocks containing the combination. Some codewords include a number of bits having the given bit value that is different than the predetermined target probability distribution, but an average number of bits having the given bit value in the available codewords meets the predetermined target probability distribution. The disclosed methods result in more available codewords and a lower rate loss than in bit-level distribution matchers with a constant modulus, while achieving similar shaping."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Low rate loss bit-level distribution matcher for constellation shaping","description":"Systems and methods for constellation shaping using low rate loss bit-level distribution matchers include receiving blocks of input bits and, for each input block of a predetermined size, assigning a ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11265086","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-11265086","citation_suggestion":"Patentable. \"Low rate loss bit-level distribution matcher for constellation shaping\" (US-11265086). https://patentable.app/patents/US-11265086","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11265086","json":"https://patentable.app/api/llm-context/US-11265086","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T09:43:17.245Z"}