{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11940293","patent":{"patent_number":"US-11940293","title":"Finger devices with self-mixing interferometric proximity sensors","assignee":null,"inventors":[],"filing_date":"2021-09-02T00:00:00.000Z","publication_date":"2024-03-26T00:00:00.000Z","cpc_codes":["G01C","G06F","G06F","G06F","G06F","G06F"],"num_claims":19,"abstract":"A system may include one or more finger devices that gather input from a user's fingers. A finger device may include one or more self-mixing interferometric proximity sensors that measure a distance to the user's finger. The proximity sensor may measure changes in distance between the proximity sensor and a flexible membrane that rests against a side portion of the user's finger. The self-mixing interferometric proximity sensor may include a laser and a photodiode. In some arrangements, a single laser driver may drive the lasers of multiple self-mixing proximity sensors using time-multiplexing. The self-mixing proximity sensor may operate according to a duty cycle. Interpolation and stitching may be used to determine the total displacement of the user's finger including both the on periods and off periods of the self-mixing proximity sensor."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Finger devices with self-mixing interferometric proximity sensors","description":"A system may include one or more finger devices that gather input from a user's fingers. A finger device may include one or more self-mixing interferometric proximity sensors that measure a distance t","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11940293","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-11940293","citation_suggestion":"Patentable. \"Finger devices with self-mixing interferometric proximity sensors\" (US-11940293). https://patentable.app/patents/US-11940293","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11940293","json":"https://patentable.app/api/llm-context/US-11940293","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T18:35:01.118Z"}