{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9742428","patent":{"patent_number":"US-9742428","title":"Delta sigma modulator for shaping noise and audio codec having the same","assignee":null,"inventors":[],"filing_date":"2016-04-13T00:00:00.000Z","publication_date":"2017-08-22T00:00:00.000Z","cpc_codes":["G06F"],"num_claims":20,"abstract":"A delta-sigma modulator includes a loop filter, a quantizer configured to change an analog output signal into a digital signal, and a digital-to-analog converter configured to receive the digital signal and including a first capacitor and a second capacitor. In a first sampling period, the first capacitor is discharged, and at the same time, the second capacitor is charged with a reference voltage. In a second sampling period, the digital signal includes noise caused by a clock jitter, the first capacitor is charged with a reference voltage, and the second capacitor is discharged and generates a charge corresponding to the noise. In a next first sampling period, the first capacitor is discharged, and at the same time, the second capacitor generates a noise current corresponding to the noise using the charge and is charged with a reference voltage."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Delta sigma modulator for shaping noise and audio codec having the same","description":"A delta-sigma modulator includes a loop filter, a quantizer configured to change an analog output signal into a digital signal, and a digital-to-analog converter configured to receive the digital sign","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9742428","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-9742428","citation_suggestion":"Patentable. \"Delta sigma modulator for shaping noise and audio codec having the same\" (US-9742428). https://patentable.app/patents/US-9742428","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9742428","json":"https://patentable.app/api/llm-context/US-9742428","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:23:24.249Z"}