{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11252522","patent":{"patent_number":"US-11252522","title":"Detecting audio paths between mobile devices and external devices","assignee":null,"inventors":[],"filing_date":"2018-08-01T00:00:00.000Z","publication_date":"2022-02-15T00:00:00.000Z","cpc_codes":["H04M","H04R","G01C","H04M","H04M","H04R","H04R","H04R"],"num_claims":20,"abstract":"Providing navigation instructions in an automotive environment includes generating, at the portable device, a test audio signal. The test audio signal is provided to the head unit of the vehicle via a short-range communication link. The portable device then detects whether the test audio signal has been converted to sound by one or more speakers in the head unit of the vehicle. In response to detecting the audio signal at the portable device, a vocalized navigation instruction is directed to the head unit for announcement via the one or more speakers of the head unit. Otherwise, in response to not detecting the test audio signal at the portable device, the vocalized navigation instruction is provided via a speaker of the portable device."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Detecting audio paths between mobile devices and external devices","description":"Providing navigation instructions in an automotive environment includes generating, at the portable device, a test audio signal. The test audio signal is provided to the head unit of the vehicle via a","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11252522","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-11252522","citation_suggestion":"Patentable. \"Detecting audio paths between mobile devices and external devices\" (US-11252522). https://patentable.app/patents/US-11252522","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11252522","json":"https://patentable.app/api/llm-context/US-11252522","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T16:26:10.723Z"}