{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9722847","patent":{"patent_number":"US-9722847","title":"Transmitter, receiver, transmission method, and reception method","assignee":null,"inventors":[],"filing_date":"2013-10-11T00:00:00.000Z","publication_date":"2017-08-01T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04W"],"num_claims":3,"abstract":"A preamble generating unit generates first and second synchronization preambles having different numbers of subcarriers. A transmission signal generating unit generates an OFDM transmission signal through time-division multiplexing by using the generated first and second synchronization preambles. A transmission RF unit converts the generated OFDM transmission signal into a radio-frequency OFDM signal and transmits the radio-frequency OFDM signal. The preamble generating unit adds a predetermined dummy period between the first synchronization preamble and the second synchronization preamble."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Transmitter, receiver, transmission method, and reception method","description":"A preamble generating unit generates first and second synchronization preambles having different numbers of subcarriers. A transmission signal generating unit generates an OFDM transmission signal thr","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9722847","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-9722847","citation_suggestion":"Patentable. \"Transmitter, receiver, transmission method, and reception method\" (US-9722847). https://patentable.app/patents/US-9722847","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9722847","json":"https://patentable.app/api/llm-context/US-9722847","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:19:35.652Z"}