{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11303289","patent":{"patent_number":"US-11303289","title":"Frequency-multiplying direct digital synthesizer","assignee":null,"inventors":[],"filing_date":"2020-08-26T00:00:00.000Z","publication_date":"2022-04-12T00:00:00.000Z","cpc_codes":["G06F","G06F"],"num_claims":14,"abstract":"A frequency-multiplying DDS includes a digital multiplier, a phase accumulator, a post-accumulator digital processing section, and a digital-to-analog converter (DAC). The digital multiplier multiplies a digital tuning word of value M by a digital multiplier of value B, to produce a digital product (M×B), and the n-bit accumulator accumulates by a step size of the digital product (M×B), at a rate of a low-speed reference clock of frequency fCLK/B. The post-accumulator digital processing section synthesizes B digital waveforms from the sequence of n-bit accumulator output numbers produced by the n-bit accumulator, and rotates each digital waveform with respect to each adjacent digital waveform by (M/2n)×2π radians. The DAC serializes the digital samples of the B digital waveforms at full speed, i.e., at a rate fCLK, to produce a full-speed serialized digital output having 2n/M samples per cycle, and converts the full-speed serialized digital output to a final output analog waveform of frequency fOUT=(M/2n)×fCLK."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Frequency-multiplying direct digital synthesizer","description":"A frequency-multiplying DDS includes a digital multiplier, a phase accumulator, a post-accumulator digital processing section, and a digital-to-analog converter (DAC). The digital multiplier multiplie","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11303289","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-11303289","citation_suggestion":"Patentable. \"Frequency-multiplying direct digital synthesizer\" (US-11303289). https://patentable.app/patents/US-11303289","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11303289","json":"https://patentable.app/api/llm-context/US-11303289","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T07:47:07.155Z"}