{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9609430","patent":{"patent_number":"US-9609430","title":"Temperature measurement apparatus and protection apparatus for sound signal converting device","assignee":null,"inventors":[],"filing_date":"2013-06-24T00:00:00.000Z","publication_date":"2017-03-28T00:00:00.000Z","cpc_codes":["H04R","H04R","H04R","H04R"],"num_claims":8,"abstract":"An audio signal output from a tone generator is fed into a coil provided in a transducer for vibrating a sound board, so that a sound signal is generated by the vibration of the sound board. A predetermined DC voltage supplied by a constant voltage source circuit is superimposed on the audio signal by an adding circuit, so that the superimposed signal is fed into the coil. A current passing through the coil is sensed by a current sensing resistor, so that only a DC voltage component of a voltage signal on the both ends of the resistor is extracted by a low-pass filter circuit to be supplied to a microcomputer via an A/D converting circuit. The microcomputer figures out a resistance value and a temperature of the coil by use of the DC voltage component and the certain DC voltage value."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Temperature measurement apparatus and protection apparatus for sound signal converting device","description":"An audio signal output from a tone generator is fed into a coil provided in a transducer for vibrating a sound board, so that a sound signal is generated by the vibration of the sound board. A predete","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9609430","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-9609430","citation_suggestion":"Patentable. \"Temperature measurement apparatus and protection apparatus for sound signal converting device\" (US-9609430). https://patentable.app/patents/US-9609430","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9609430","json":"https://patentable.app/api/llm-context/US-9609430","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:16:04.987Z"}