{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9706546","patent":{"patent_number":"US-9706546","title":"Preambles for sub-1GHz frequency bands","assignee":null,"inventors":[],"filing_date":"2015-03-16T00:00:00.000Z","publication_date":"2017-07-11T00:00:00.000Z","cpc_codes":["H04W","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04L","H04W"],"num_claims":22,"abstract":"A preamble generator module generates a first preamble for a first packet, which is a single-user packet. The first preamble includes a first short training field, a first long training field, and a first signal field. The preamble generator module generates a second preamble for a second packet, which is a multi-user packet formatted as a multi-user packet or a single-user packet formatted as a multi-user packet. The second preamble is longer than the first preamble and includes a second short training field, a second long training field, and a second signal field. The first signal field and the second signal field conform to a Very High Throughput format specified in a wireless networking standard. A modulation module modulates the first signal field of the first preamble differently than the second signal field of the second preamble."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Preambles for sub-1GHz frequency bands","description":"A preamble generator module generates a first preamble for a first packet, which is a single-user packet. The first preamble includes a first short training field, a first long training field, and a f","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9706546","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-9706546","citation_suggestion":"Patentable. \"Preambles for sub-1GHz frequency bands\" (US-9706546). https://patentable.app/patents/US-9706546","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9706546","json":"https://patentable.app/api/llm-context/US-9706546","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T14:40:58.619Z"}