{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9628807","patent":{"patent_number":"US-9628807","title":"Chirp spread spectrum system and method","assignee":null,"inventors":[],"filing_date":"2016-05-27T00:00:00.000Z","publication_date":"2017-04-18T00:00:00.000Z","cpc_codes":["H04L","H04B","H04L","H04N","H04N","H04N","H04B"],"num_claims":12,"abstract":"A radio frequency receiver for receiving an interleaved single carrier chirp spread spectrum signal based on a chirp sequence includes: a demodulator configured to receive, demodulate, and digitize a modulated radio frequency (RF) signal to form a digital baseband signal; and a signal decoder configured to: despread the digital baseband signal by at least: buffering signal data into blocks of L samples; multiplying the blocks of data with a conjugate of the chirp sequence to form a result; and performing a Fast Fourier Transform (FFT) on the result; equalize data from the FFT to form N data values, where N is the number of subchannels; transform the N data values into N demodulation symbols via an N-point inverse Fourier transform; and decode the demodulation symbols to form codec symbols."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Chirp spread spectrum system and method","description":"A radio frequency receiver for receiving an interleaved single carrier chirp spread spectrum signal based on a chirp sequence includes: a demodulator configured to receive, demodulate, and digitize a ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9628807","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-9628807","citation_suggestion":"Patentable. \"Chirp spread spectrum system and method\" (US-9628807). https://patentable.app/patents/US-9628807","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9628807","json":"https://patentable.app/api/llm-context/US-9628807","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T18:29:59.134Z"}