{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8492665","patent":{"patent_number":"US-8492665","title":"Apparatus and methods for capacitive sensing and capacitance measuring","assignee":null,"inventors":[],"filing_date":"2009-08-11T00:00:00.000Z","publication_date":"2013-07-23T00:00:00.000Z","cpc_codes":["G06F","G06F"],"num_claims":11,"abstract":"One embodiment of an apparatus for capacitive sensing and capacitive measuring having a digital circuitry (16) which has a digital input port P1 communicating with a capacitive sensing element (10). A resistance element (12) forms an electrical pathway between the sensing element and a signal generator (18) by electrically communicating with both. The signal generator outputs adjustable singles to charge and discharge the sensing element. The voltage Vc of the sensing element at the input port P1 will cause logic level change between “1” and “0” inside the digital circuitry when passing through the logic threshold of the digital circuit. The digital circuitry measures the time between the logic level changes and the reference points of the signals, and then calculates the capacitance or the capacitance change. The digital circuitry can be a microcontroller and the signal source can be the microcontroller's output port. Other embodiments are described and shown."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Apparatus and methods for capacitive sensing and capacitance measuring","description":"One embodiment of an apparatus for capacitive sensing and capacitive measuring having a digital circuitry (16) which has a digital input port P1 communicating with a capacitive sensing element (10). A","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8492665","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-8492665","citation_suggestion":"Patentable. \"Apparatus and methods for capacitive sensing and capacitance measuring\" (US-8492665). https://patentable.app/patents/US-8492665","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8492665","json":"https://patentable.app/api/llm-context/US-8492665","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T06:59:52.727Z"}