{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8472641","patent":{"patent_number":"US-8472641","title":"Ambient noise cancellation for voice communications device","assignee":null,"inventors":[],"filing_date":"2008-10-06T00:00:00.000Z","publication_date":"2013-06-25T00:00:00.000Z","cpc_codes":["H04M","H04R","H04R"],"num_claims":6,"abstract":"A system and method for reducing or entirely canceling background or ambient noise from a voice transmission from a communications device. A communications device, such as a mobile telephone, is configured with an ambient noise compensation signal generator that is connected between a microphone and a mixer. The original output of the microphone and a compensation signal generated by the ambient noise compensation signal generator are mixed together prior to being passed to a transmitter. In one embodiment a buffer is provided between the microphone and the mixer to help synchronize the timing of the signals to be mixed. In another embodiment a second microphone is employed to detect ambient noise."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Ambient noise cancellation for voice communications device","description":"A system and method for reducing or entirely canceling background or ambient noise from a voice transmission from a communications device. A communications device, such as a mobile telephone, is confi","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8472641","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-8472641","citation_suggestion":"Patentable. \"Ambient noise cancellation for voice communications device\" (US-8472641). https://patentable.app/patents/US-8472641","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8472641","json":"https://patentable.app/api/llm-context/US-8472641","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T14:08:54.394Z"}