{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8471644","patent":{"patent_number":"US-8471644","title":"Digital automatic gain control circuits and methods for controlling the amplitude of a time-varying signal","assignee":null,"inventors":[],"filing_date":"2011-01-19T00:00:00.000Z","publication_date":"2013-06-25T00:00:00.000Z","cpc_codes":["H04L"],"num_claims":18,"abstract":"A gain control circuit, suitable for controlling the amplitude of a voltage-controlled oscillator, includes a duty cycle detector, an analog-to-digital converter, and a function generator. The gain control circuit provides a digitally enabled negative feedback loop. The duty cycle detector generates an estimate of the amplitude. The function generator receives a target amplitude as well as a digital representation of the estimate of the amplitude. The function generator calculates a modified estimate and periodically compares the same to the target value to generate a control word. The control word is arranged to enable current sources in the voltage-controlled oscillator."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Digital automatic gain control circuits and methods for controlling the amplitude of a time-varying signal","description":"A gain control circuit, suitable for controlling the amplitude of a voltage-controlled oscillator, includes a duty cycle detector, an analog-to-digital converter, and a function generator. The gain co","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8471644","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-8471644","citation_suggestion":"Patentable. \"Digital automatic gain control circuits and methods for controlling the amplitude of a time-varying signal\" (US-8471644). https://patentable.app/patents/US-8471644","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8471644","json":"https://patentable.app/api/llm-context/US-8471644","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T23:55:13.560Z"}