{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11304009","patent":{"patent_number":"US-11304009","title":"Digital microphone assembly with improved frequency response and noise characteristics","assignee":null,"inventors":[],"filing_date":"2020-12-31T00:00:00.000Z","publication_date":"2022-04-12T00:00:00.000Z","cpc_codes":["H04R","G06F","H04R","H04R","H04R","H04R"],"num_claims":20,"abstract":"A microphone assembly includes an acoustic filter with a first highpass cut-off frequency. The microphone assembly additionally includes a forward signal path and a feedback signal path. The forward signal path is configured to amplify or buffer an electrical signal generated by a transducer in response to sound and to convert the electrical signal to a digital signal. The feedback signal path is configured to generate a digital control signal based on the digital signal and to generate and output a sequence of variable current pulses based on the digital control signal. The variable current pulses suppress frequencies of the electrical signal below a second highpass cut-off frequency, higher than the first highpass cut-off frequency."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Digital microphone assembly with improved frequency response and noise characteristics","description":"A microphone assembly includes an acoustic filter with a first highpass cut-off frequency. The microphone assembly additionally includes a forward signal path and a feedback signal path. The forward s","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11304009","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-11304009","citation_suggestion":"Patentable. \"Digital microphone assembly with improved frequency response and noise characteristics\" (US-11304009). https://patentable.app/patents/US-11304009","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11304009","json":"https://patentable.app/api/llm-context/US-11304009","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T13:43:16.553Z"}