{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11275468","patent":{"patent_number":"US-11275468","title":"Capacitance detection circuit, touch control chip and electronic device","assignee":null,"inventors":[],"filing_date":"2020-12-15T00:00:00.000Z","publication_date":"2022-03-15T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F","G06F"],"num_claims":20,"abstract":"This application provides a capacitance detection circuit, which is configured to detect a capacitance between a sensing electrode in a screen and a first driving electrode to which a driving signal is input. The capacitance detection circuit includes: an amplification circuit, connected to the sensing electrode and configured to convert a capacitance signal between the sensing electrode and the first driving electrode into a voltage signal; a cancellation circuit, connected to the amplification circuit and configured to output a cancellation signal to the amplification circuit, where the cancellation signal is used to cancel a noise signal from the screen included in the voltage signal; and a control circuit, connected to a second driving electrode, in the screen, to which no driving signal is input, and configured to generate a control signal, where the control signal is configured to control the cancellation circuit to generate the cancellation signal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Capacitance detection circuit, touch control chip and electronic device","description":"This application provides a capacitance detection circuit, which is configured to detect a capacitance between a sensing electrode in a screen and a first driving electrode to which a driving signal i","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11275468","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-11275468","citation_suggestion":"Patentable. \"Capacitance detection circuit, touch control chip and electronic device\" (US-11275468). https://patentable.app/patents/US-11275468","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11275468","json":"https://patentable.app/api/llm-context/US-11275468","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T16:23:02.564Z"}