{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9693138","patent":{"patent_number":"US-9693138","title":"Audio speaker protection system and method","assignee":null,"inventors":[],"filing_date":"2015-08-28T00:00:00.000Z","publication_date":"2017-06-27T00:00:00.000Z","cpc_codes":["H04R"],"num_claims":17,"abstract":"A circuit may include an audio amplifier (314) configured to amplify an input signal (SAUDIO) to generate an output signal (SOUT+, SOUT−) suitable for driving a loud speaker (316). A first circuit (318) may be configured to generate a first analog signal (SI) based on a current level drawn by the loud speaker (316), and a second circuit (320) may be configured to generate a second analog signal (SV) based on a voltage supplied across the loud speaker (316). A third circuit (322, 312) may be configured to generate a third analog signal (RESIDUE) based on the difference between the first and second analog signals, and modify the input signal (SAUDIO) based on the third analog signal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Audio speaker protection system and method","description":"A circuit may include an audio amplifier (314) configured to amplify an input signal (SAUDIO) to generate an output signal (SOUT+, SOUT−) suitable for driving a loud speaker (316). A first circuit (31","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9693138","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-9693138","citation_suggestion":"Patentable. \"Audio speaker protection system and method\" (US-9693138). https://patentable.app/patents/US-9693138","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9693138","json":"https://patentable.app/api/llm-context/US-9693138","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:51:03.681Z"}