{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9781514","patent":{"patent_number":"US-9781514","title":"Stereo audio headphone apparatus","assignee":null,"inventors":[],"filing_date":"2015-10-08T00:00:00.000Z","publication_date":"2017-10-03T00:00:00.000Z","cpc_codes":["H04R","H04R","H04R","H04R","H04R"],"num_claims":15,"abstract":"A stereo audio headphone apparatus comprising a master headphone unit comprising a master housing, master circuitry comprising a stereo audio source and a wireless transmitter, a master audio output device for playing a first stereo audio channel, a master audio input device, and a first independently settable frequency equalizer for the first stereo audio channel carried by the master housing, and a slave headphone unit comprising a slave housing, slave circuitry comprising a wireless receiver, a slave audio output device for playing a second stereo audio channel, a slave audio input device, and a second independently settable frequency equalizer for the second stereo audio channel carried by the slave housing. The master and slave circuitries are operable in a pass-through mode with audio sensed by the master and slave audio input devices being delivered to the master and slave audio output devices via the first and second frequency equalizers."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Stereo audio headphone apparatus","description":"A stereo audio headphone apparatus comprising a master headphone unit comprising a master housing, master circuitry comprising a stereo audio source and a wireless transmitter, a master audio output d","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9781514","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-9781514","citation_suggestion":"Patentable. \"Stereo audio headphone apparatus\" (US-9781514). https://patentable.app/patents/US-9781514","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9781514","json":"https://patentable.app/api/llm-context/US-9781514","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:04:22.664Z"}