{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11284187","patent":{"patent_number":"US-11284187","title":"Small-array MEMS microphone apparatus and noise suppression method thereof","assignee":null,"inventors":[],"filing_date":"2020-10-26T00:00:00.000Z","publication_date":"2022-03-22T00:00:00.000Z","cpc_codes":["H04R","H04R","H04R","H04R"],"num_claims":18,"abstract":"A small-array MEMS (micro-electro mechanical system) microphone apparatus is provided. The apparatus includes first and second microphone modules. A first microphone of the first microphone module captures a first acoustic signal from a sound source through a first acoustic hole. A second microphone of the second microphone module captures a second acoustic signal from the sound source through a second acoustic hole. A first integrated circuit performs a first logic operation on the first acoustic signal and the second acoustic signal to generate a first sum acoustic signal. The first integrated circuit performs a sampling delay on the second acoustic signal with a first clock signal, and subtracts the delayed second acoustic signal from the first acoustic signal to obtain a first differential acoustic signal. The first differential acoustic signal has a first directivity. A second integrated circuit bypasses and outputs the second acoustic signal which is omnidirectional."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Small-array MEMS microphone apparatus and noise suppression method thereof","description":"A small-array MEMS (micro-electro mechanical system) microphone apparatus is provided. The apparatus includes first and second microphone modules. A first microphone of the first microphone module cap","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11284187","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-11284187","citation_suggestion":"Patentable. \"Small-array MEMS microphone apparatus and noise suppression method thereof\" (US-11284187). https://patentable.app/patents/US-11284187","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11284187","json":"https://patentable.app/api/llm-context/US-11284187","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T07:34:09.147Z"}