{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9621999","patent":{"patent_number":"US-9621999","title":"State of charge indication in a hearing device","assignee":null,"inventors":[],"filing_date":"2013-01-29T00:00:00.000Z","publication_date":"2017-04-11T00:00:00.000Z","cpc_codes":["H02J","H04R","H04R","H04R","H04R"],"num_claims":21,"abstract":"A hearing device such as a hearing aid includes a function module, a rechargeable battery, and a battery power management unit. The battery power management unit includes a voltage regulator in operative connection with the rechargeable battery, the voltage regulator being adapted to output a supply voltage to the function module. The battery power management unit also includes a control unit in operative connection with the voltage regulator and with the rechargeable battery, adapted to measure the rechargeable battery output voltage and to control the supply voltage output by the voltage regulator. The control unit is adapted to encode a signal in dependence of the rechargeable battery output voltage onto the supply voltage. In consequence, the function module can extract information on the state of charge of the rechargeable battery so as to be able to inform the hearing device wearer accordingly."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"State of charge indication in a hearing device","description":"A hearing device such as a hearing aid includes a function module, a rechargeable battery, and a battery power management unit. The battery power management unit includes a voltage regulator in operat","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9621999","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-9621999","citation_suggestion":"Patentable. \"State of charge indication in a hearing device\" (US-9621999). https://patentable.app/patents/US-9621999","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9621999","json":"https://patentable.app/api/llm-context/US-9621999","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:40:17.416Z"}