{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9665215","patent":{"patent_number":"US-9665215","title":"Method and circuit for parasitic capacitance cancellation for self capacitance sensing","assignee":null,"inventors":[],"filing_date":"2013-03-29T00:00:00.000Z","publication_date":"2017-05-30T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F","G06F"],"num_claims":30,"abstract":"Apparatus and methods to measure capacitance changes for a touch-sensitive capacitive matrix are described. Charge-removal circuits and measurement techniques may be employed to cancel deleterious effects of parasitic capacitances in the touch-sensitive capacitive matrix. Capacitively switching a supply during timed charge removal may be used to cancel unwanted effects due to clock jitter. The apparatus and methods can improve signal-to-noise characteristics, sensitivity, and/or dynamic range for capacitive measurements relating to touch-sensitive capacitive devices."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and circuit for parasitic capacitance cancellation for self capacitance sensing","description":"Apparatus and methods to measure capacitance changes for a touch-sensitive capacitive matrix are described. Charge-removal circuits and measurement techniques may be employed to cancel deleterious eff","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9665215","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-9665215","citation_suggestion":"Patentable. \"Method and circuit for parasitic capacitance cancellation for self capacitance sensing\" (US-9665215). https://patentable.app/patents/US-9665215","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9665215","json":"https://patentable.app/api/llm-context/US-9665215","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T13:37:59.245Z"}