{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11954287","patent":{"patent_number":"US-11954287","title":"Self-capacitor sensing using alternating-current-mode bridge with global current rotation for capacitive touch panels","assignee":null,"inventors":[],"filing_date":"2023-04-24T00:00:00.000Z","publication_date":"2024-04-09T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F"],"num_claims":20,"abstract":"Techniques are described for using a multi-branch AC-mode bridge approach with global current rotation for self-capacitor sensing in a capacitive touch panel, such as integrated into a display of a touchscreen electronic device. K channels are coupled with K branches of a multi-branch AC-mode bridge to form K−1 pairs of channels for concurrent differential readout. K nominally identical sinusoidal input currents are generated based on an error signal, which is generated based on comparing a sinusoidal driver signal with feedback from one or more of the K branches. A unit current rotator rotates the K sinusoidal input currents to each of the branches, so that each branch current is formed by a rotating contribution from each of the sinusoidal input currents. Driving each branch with its branch current manifests a respective branch voltage, and differences between the branch voltages can be used to differentially sense pairs of channels."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Self-capacitor sensing using alternating-current-mode bridge with global current rotation for capacitive touch panels","description":"Techniques are described for using a multi-branch AC-mode bridge approach with global current rotation for self-capacitor sensing in a capacitive touch panel, such as integrated into a display of a to","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11954287","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-11954287","citation_suggestion":"Patentable. \"Self-capacitor sensing using alternating-current-mode bridge with global current rotation for capacitive touch panels\" (US-11954287). https://patentable.app/patents/US-11954287","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11954287","json":"https://patentable.app/api/llm-context/US-11954287","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T14:02:02.148Z"}