{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9721557","patent":{"patent_number":"US-9721557","title":"System and apparatus for boomless-microphone construction for wireless helmet communicator with siren signal detection and classification capability","assignee":null,"inventors":[],"filing_date":"2016-12-01T00:00:00.000Z","publication_date":"2017-08-01T00:00:00.000Z","cpc_codes":["G08G","H04R","H04R","H04R","G10L"],"num_claims":20,"abstract":"Boomless-microphones are described for a wireless helmet communicator with siren signal detection and classification capabilities. An acoustic component receives an audio signal and comprises a left acoustic sensor and a right acoustic sensor. The left acoustic sensor is mountable or attachable to the surface of a left wall of a helmet and the right acoustic sensor is mountable or attachable to the surface of a right wall. A speaker component can generate an echoless audio signal via signal inversion of the audio signal, outputs to a left speaker mountable or attachable to a left ear area of the helmet and a right speaker mountable or attachable to a right ear area of the helmet. A signal enhancement component can increase an intensity of the first audio signal associated with an emergency siren based on a determined proximity of an emitting emergency vehicle or emergency object to the device."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"System and apparatus for boomless-microphone construction for wireless helmet communicator with siren signal detection and classification capability","description":"Boomless-microphones are described for a wireless helmet communicator with siren signal detection and classification capabilities. An acoustic component receives an audio signal and comprises a left a","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9721557","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-9721557","citation_suggestion":"Patentable. \"System and apparatus for boomless-microphone construction for wireless helmet communicator with siren signal detection and classification capability\" (US-9721557). https://patentable.app/patents/US-9721557","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9721557","json":"https://patentable.app/api/llm-context/US-9721557","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:41:13.933Z"}