{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9672812","patent":{"patent_number":"US-9672812","title":"Qualifying trigger expressions in speech-based systems","assignee":null,"inventors":[],"filing_date":"2013-09-18T00:00:00.000Z","publication_date":"2017-06-06T00:00:00.000Z","cpc_codes":["G10L","G10L"],"num_claims":21,"abstract":"A speech-based audio device may be configured to detect a user-uttered trigger expression and to respond by interpreting subsequent words or phrases as commands. In order to distinguish between utterance of the trigger expression by the user and generation of the trigger expression by the device itself, output signals used as speaker inputs are analyzed to detect whether the trigger expression has been generated by the speaker. If a detected trigger expression has been generated by the speaker, it is disqualified. Disqualified trigger expressions are not acted upon the by the audio device."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Qualifying trigger expressions in speech-based systems","description":"A speech-based audio device may be configured to detect a user-uttered trigger expression and to respond by interpreting subsequent words or phrases as commands. In order to distinguish between uttera","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9672812","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-9672812","citation_suggestion":"Patentable. \"Qualifying trigger expressions in speech-based systems\" (US-9672812). https://patentable.app/patents/US-9672812","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9672812","json":"https://patentable.app/api/llm-context/US-9672812","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:41:48.540Z"}