{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9678191","patent":{"patent_number":"US-9678191","title":"Electrostatic capacitance detection circuit and input device","assignee":null,"inventors":[],"filing_date":"2013-07-24T00:00:00.000Z","publication_date":"2017-06-13T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F"],"num_claims":13,"abstract":"An electrostatic capacitance detection circuit includes a charge amplifier that has an operational amplifier in which a capacitor is provided on a feedback path, and into which a signal including detection of electric charge of an inter-electrode capacitor of a sensor electrode and electric charge due to an external noise, and a selection switch that can switch a direction of a capacitor that is connected to input and output terminals of the charge amplifier through a feedback path that switches the direction of the capacitor depending on a direction of electric charge flowing in from a detection-side electrode of the sensor electrode, due to a drive signal applied to the sensor electrode."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Electrostatic capacitance detection circuit and input device","description":"An electrostatic capacitance detection circuit includes a charge amplifier that has an operational amplifier in which a capacitor is provided on a feedback path, and into which a signal including dete","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9678191","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-9678191","citation_suggestion":"Patentable. \"Electrostatic capacitance detection circuit and input device\" (US-9678191). https://patentable.app/patents/US-9678191","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9678191","json":"https://patentable.app/api/llm-context/US-9678191","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:57:43.839Z"}