{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9722844","patent":{"patent_number":"US-9722844","title":"Data transmission method, data demodulation method, apparatus and system","assignee":null,"inventors":[],"filing_date":"2016-03-03T00:00:00.000Z","publication_date":"2017-08-01T00:00:00.000Z","cpc_codes":["H04L","H04B","H04L","H04L","H04L"],"num_claims":9,"abstract":"The transmission method includes: performing first-time series-parallel conversion on modulation symbols, and allocating the data to different subcarriers, by a sender side; performing second-time series-parallel conversion on the data allocated to each subcarrier, modulating the parallel data to Slepian signals orthogonal to each other; summing up the data modulated to different Slepian signals; further modulating the data to a subcarrier; and summing up the data in all subcarriers to form transmission signals. The demodulation method includes: calculating a pseudo-inverse of a matrix formed by subcarrier signals of a sender side by a receiver side; performing subcarrier demodulation on reception signals by using columns of the calculated pseudo-inverse matrix; and performing matching filtering demodulation on signals in each subcarrier by using Slepian signals orthogonal to each other to obtain estimation values of modulation symbols of the sender side."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Data transmission method, data demodulation method, apparatus and system","description":"The transmission method includes: performing first-time series-parallel conversion on modulation symbols, and allocating the data to different subcarriers, by a sender side; performing second-time ser","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9722844","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-9722844","citation_suggestion":"Patentable. \"Data transmission method, data demodulation method, apparatus and system\" (US-9722844). https://patentable.app/patents/US-9722844","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9722844","json":"https://patentable.app/api/llm-context/US-9722844","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:39:43.283Z"}