{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10530309","patent":{"patent_number":"US-10530309","title":"Methods and circuits to reduce pop noise in an audio device","assignee":null,"inventors":[],"filing_date":"2018-12-17T00:00:00.000Z","publication_date":"2020-01-07T00:00:00.000Z","cpc_codes":["H04R"],"num_claims":13,"abstract":"A class D amplifier receives and amplifies a differential analog signal which is then differentially integrated. Two pulse width modulators generate pulse signals corresponding to the differentially integrated analog signal and two power units generate output pulse signals. The outputs the power units are coupled to input terminals of integrators via a resistor feedback network. An analog output unit converts the pulse signals to an output analog signal. The differential integration circuitry implements a soft transition between mute/un-mute. In mute, the integrator output is fixed. During the soft transition, the PWM outputs change slowly from a fixed 50% duty cycle to a final value to ensure that no pop noise is present in the output as a result of mode change."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Methods and circuits to reduce pop noise in an audio device","description":"A class D amplifier receives and amplifies a differential analog signal which is then differentially integrated. Two pulse width modulators generate pulse signals corresponding to the differentially i","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10530309","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-10530309","citation_suggestion":"Patentable. \"Methods and circuits to reduce pop noise in an audio device\" (US-10530309). https://patentable.app/patents/US-10530309","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10530309","json":"https://patentable.app/api/llm-context/US-10530309","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T18:36:56.694Z"}