{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11936447","patent":{"patent_number":"US-11936447","title":"OAM mode multiplexing transmission apparatus, OAM mode multiplexing radio transmission system, method for correcting OAM mode multiplexing transmission apparatus, and computer-readable non-transient recording medium","assignee":null,"inventors":[],"filing_date":"2022-08-24T00:00:00.000Z","publication_date":"2024-03-19T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B","H04J"],"num_claims":18,"abstract":"The OAM mode multiplexing transmission apparatus includes a UCA antenna, a correction circuit, a correction value calculation circuit that calculates correction values, and a correction value feedback part that regularly feeds back the correction values from a receiving end to a transmitting end. The correction value calculation circuit is connected to a database that stores information about an ideal MIMO channel matrix, which is calculated by using an array diameter of the UCA antenna, a number of antenna elements, an RF frequency, and a link distance as parameters, in a state in which transmission and reception UCA antennas face each other, or is connected to a calculation apparatus that calculates the information. The correction value calculation circuit regularly calculates the correction values relating to signal phase rotation by using a MIMO channel matrix estimated with known signals embedded in received transmission frames and the ideal MIMO channel matrix."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"OAM mode multiplexing transmission apparatus, OAM mode multiplexing radio transmission system, method for correcting OAM mode multiplexing transmission apparatus, and computer-readable non-transient recording medium","description":"The OAM mode multiplexing transmission apparatus includes a UCA antenna, a correction circuit, a correction value calculation circuit that calculates correction values, and a correction value feedback","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11936447","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-11936447","citation_suggestion":"Patentable. \"OAM mode multiplexing transmission apparatus, OAM mode multiplexing radio transmission system, method for correcting OAM mode multiplexing transmission apparatus, and computer-readable non-transient recording medium\" (US-11936447). https://patentable.app/patents/US-11936447","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11936447","json":"https://patentable.app/api/llm-context/US-11936447","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T04:47:22.730Z"}