{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9767074","patent":{"patent_number":"US-9767074","title":"Method and device for fast fourier transform","assignee":null,"inventors":[],"filing_date":"2015-05-11T00:00:00.000Z","publication_date":"2017-09-19T00:00:00.000Z","cpc_codes":["G06F"],"num_claims":27,"abstract":"A FFT/IFFT method, comprises converting a set of reversal-order or a set of natural-order addresses of FFT/IFFT data to a set of addresses in a radix-based numeral representation; calculating sequence numbers of a plurality of memory locations for buffering a set of data for a parallel calculation, by accumulating or subtracting all digits of the set of addresses in the radix-based numeral representation and then performing a modulo operation on the accumulation or subtraction results, wherein the radix represents a length of short DFT sequence for the parallel calculation in a FFT/IFFT calculation; storing the FFT/IFFT data simultaneously and respectively into corresponding memory locations indicated by the calculated sequence numbers; and performing FFT/IFFT calculation, comprising: performing short DFT sequence calculation; repeating the short DFT sequence calculation, until the whole FFT/IFFT calculation completes."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and device for fast fourier transform","description":"A FFT/IFFT method, comprises converting a set of reversal-order or a set of natural-order addresses of FFT/IFFT data to a set of addresses in a radix-based numeral representation; calculating sequence","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9767074","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-9767074","citation_suggestion":"Patentable. \"Method and device for fast fourier transform\" (US-9767074). https://patentable.app/patents/US-9767074","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9767074","json":"https://patentable.app/api/llm-context/US-9767074","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:25:55.300Z"}