{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8467470","patent":{"patent_number":"US-8467470","title":"Codebook method for a multiple input multiple output wireless system","assignee":null,"inventors":[],"filing_date":"2012-06-15T00:00:00.000Z","publication_date":"2013-06-18T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L"],"num_claims":23,"abstract":"A method for wireless encoding includes encoding wireless multiple input and multiple output signals in accordance with a codebook being one of a discrete codebook restricting elements of codebook entries to be within a predetermined finite set of complex numbers and a constant amplitude codebook including each entry in its codebook having equal column norm and equal row norm. In a preferred embodiment the digital codebook further includes restricting elements of a finite set in the discrete codebook to be in the form of ka+jkb for a base-k computer and the constant amplitude codebook further includes being obtained through a series of successive householder transformations. In a preferred embodiment the codebook is configured as one of a constrained codebook in which the codebook is configured for multiple scenarios and a discrete codebook."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Codebook method for a multiple input multiple output wireless system","description":"A method for wireless encoding includes encoding wireless multiple input and multiple output signals in accordance with a codebook being one of a discrete codebook restricting elements of codebook ent","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8467470","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-8467470","citation_suggestion":"Patentable. \"Codebook method for a multiple input multiple output wireless system\" (US-8467470). https://patentable.app/patents/US-8467470","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8467470","json":"https://patentable.app/api/llm-context/US-8467470","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T05:11:05.900Z"}