{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9736002","patent":{"patent_number":"US-9736002","title":"Quadrature amplitude modulation for time-reversal systems","assignee":null,"inventors":[],"filing_date":"2016-07-01T00:00:00.000Z","publication_date":"2017-08-15T00:00:00.000Z","cpc_codes":["H04L","H04B","H04W"],"num_claims":20,"abstract":"Time-reversal wireless communication includes: at a base station, receiving a probe signal from a terminal device; generating a signature waveform that is based on a time-reversed signal of a channel response signal derived from the probe signal; performing quadrature amplitude modulation (QAM) on a transmit signal to generate a quadrature amplitude modulated signal; and generating a transmission signal based on the quadrature amplitude modulated signal and the signature waveform."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Quadrature amplitude modulation for time-reversal systems","description":"Time-reversal wireless communication includes: at a base station, receiving a probe signal from a terminal device; generating a signature waveform that is based on a time-reversed signal of a channel ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9736002","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-9736002","citation_suggestion":"Patentable. \"Quadrature amplitude modulation for time-reversal systems\" (US-9736002). https://patentable.app/patents/US-9736002","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9736002","json":"https://patentable.app/api/llm-context/US-9736002","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T16:53:16.907Z"}