{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9735990","patent":{"patent_number":"US-9735990","title":"Soft decision value generating apparatus and method of generating soft decision value","assignee":null,"inventors":[],"filing_date":"2014-10-10T00:00:00.000Z","publication_date":"2017-08-15T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L"],"num_claims":9,"abstract":"There are provided a hard decision value calculator that calculates hard decision values from I-ch and Q-ch coordinates of a received symbol having been subjected to multilevel modulation, and an LLR calculator that approximately calculates LLRs from the I-ch and Q-ch coordinates of the received symbol. In a case where a sign bit of an LLR calculated by the LLR calculator conflicts with a hard decision value calculated by the hard decision value calculator, an LLR corrector inverts the sign bit of the LLR and outputs the sign-bit-inverted LLR as a soft decision value to an error correction decoder."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Soft decision value generating apparatus and method of generating soft decision value","description":"There are provided a hard decision value calculator that calculates hard decision values from I-ch and Q-ch coordinates of a received symbol having been subjected to multilevel modulation, and an LLR ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9735990","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-9735990","citation_suggestion":"Patentable. \"Soft decision value generating apparatus and method of generating soft decision value\" (US-9735990). https://patentable.app/patents/US-9735990","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9735990","json":"https://patentable.app/api/llm-context/US-9735990","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:08:26.343Z"}