{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9635478","patent":{"patent_number":"US-9635478","title":"Coulomb counter and battery management for hearing aid","assignee":null,"inventors":[],"filing_date":"2012-04-11T00:00:00.000Z","publication_date":"2017-04-25T00:00:00.000Z","cpc_codes":["H04R","H04R"],"num_claims":15,"abstract":"A hearing aid output amplifier additionally outputs a scaled replica of the output battery current, which is integrated and measured by a coulomb counter. The scaled current charges a capacitor. When the capacitor reaches a threshold voltage, a switch is activated. The switch rapidly discharges the capacitor and allows the charging cycle to begin again. The switch also sends a digital pulse to a digital counter, which keeps track of the number of charge/discharge cycles the capacitor has undergone over the lifetime of the device. The amount of charge produced by the battery is proportional to the number of charge/discharge cycles counted. A hearing aid is disclosed, which has different modes that have different dynamic ranges, such as a “sleep” mode, an “active” mode, and/or an “RF communication” mode."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Coulomb counter and battery management for hearing aid","description":"A hearing aid output amplifier additionally outputs a scaled replica of the output battery current, which is integrated and measured by a coulomb counter. The scaled current charges a capacitor. When ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9635478","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-9635478","citation_suggestion":"Patentable. \"Coulomb counter and battery management for hearing aid\" (US-9635478). https://patentable.app/patents/US-9635478","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9635478","json":"https://patentable.app/api/llm-context/US-9635478","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:18:04.405Z"}