{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8493140","patent":{"patent_number":"US-8493140","title":"Output coupling capacitor free audio power amplifier dynamically configured for speakers and headphones with excellent click and pop performance","assignee":null,"inventors":[],"filing_date":"2012-06-01T00:00:00.000Z","publication_date":"2013-07-23T00:00:00.000Z","cpc_codes":["H04R","H04R","H04R","H04R"],"num_claims":2,"abstract":"First and second channel bridge amplifiers are dynamically configured to drive either speakers or headphones. The first channel bridge amplifier includes a first amplifier driving one end of a first speaker through a mechanical switch in a headphone-jack, and a second amplifier driving another end of the first speaker. The second channel bridge amplifier includes third and fourth amplifiers driving respective ends of a second speaker. To suppress click and pop, an amplifier control circuit maintains certain amplifiers (depending on headphone or speaker mode) tri-stated until input coupling capacitors have fully charged and an input signal exceeding a predetermined amount is detected."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Output coupling capacitor free audio power amplifier dynamically configured for speakers and headphones with excellent click and pop performance","description":"First and second channel bridge amplifiers are dynamically configured to drive either speakers or headphones. The first channel bridge amplifier includes a first amplifier driving one end of a first s","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8493140","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-8493140","citation_suggestion":"Patentable. \"Output coupling capacitor free audio power amplifier dynamically configured for speakers and headphones with excellent click and pop performance\" (US-8493140). https://patentable.app/patents/US-8493140","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8493140","json":"https://patentable.app/api/llm-context/US-8493140","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T20:11:00.985Z"}