{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8489972","patent":{"patent_number":"US-8489972","title":"Decoding method and decoding device","assignee":null,"inventors":[],"filing_date":"2009-10-09T00:00:00.000Z","publication_date":"2013-07-16T00:00:00.000Z","cpc_codes":["H04L","H04L"],"num_claims":7,"abstract":"A decoding method decodes N received branchwords produced by a convolutional encoder using a tail-biting convolutional code. N received branchwords are in memory. Viterbi updates are performed on a sequence of branchwords. A first encoder determines a state at the end of the third block most likely to have generated the final branchword in the sequence from the best path metric. A Viterbi traceback procedure is performed from that first encoder state at the end of the third block to determine a second encoder state at the start of the third block of branchwords. A Viterbi traceback procedure is performed from that second encoder state at the start of the third block to determine a third encoder state at the start of the second block of branchwords. A derived tail-biting path is output, if the second and third encoder states are identical."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Decoding method and decoding device","description":"A decoding method decodes N received branchwords produced by a convolutional encoder using a tail-biting convolutional code. N received branchwords are in memory. Viterbi updates are performed on a se","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8489972","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-8489972","citation_suggestion":"Patentable. \"Decoding method and decoding device\" (US-8489972). https://patentable.app/patents/US-8489972","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8489972","json":"https://patentable.app/api/llm-context/US-8489972","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T22:34:16.477Z"}