{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9602920","patent":{"patent_number":"US-9602920","title":"Method and apparatus for ultra-low power switching microphone","assignee":null,"inventors":[],"filing_date":"2015-01-20T00:00:00.000Z","publication_date":"2017-03-21T00:00:00.000Z","cpc_codes":["H04R","H04R","H04R"],"num_claims":24,"abstract":"A scheme is described to switch the power supply to the MEMS microphone on and off in a cyclic manner that is synchronized with the associated ADC sampling rate. In this way the MEMS microphone amplifier, whether it is a J-FET transistor or an operational amplifier, is off most of the cycle time, and is turned on only for a few micro-seconds prior to the sample-and-hold timing of the ADC device. By this method, the average power consumption of an existing analog MEMS microphone can be reduced by a factor of 10 or more."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for ultra-low power switching microphone","description":"A scheme is described to switch the power supply to the MEMS microphone on and off in a cyclic manner that is synchronized with the associated ADC sampling rate. In this way the MEMS microphone amplif","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9602920","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-9602920","citation_suggestion":"Patentable. \"Method and apparatus for ultra-low power switching microphone\" (US-9602920). https://patentable.app/patents/US-9602920","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9602920","json":"https://patentable.app/api/llm-context/US-9602920","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:03:21.872Z"}