{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11284490","patent":{"patent_number":"US-11284490","title":"Proximity detection device","assignee":null,"inventors":[],"filing_date":"2020-11-18T00:00:00.000Z","publication_date":"2022-03-22T00:00:00.000Z","cpc_codes":["G06F","G06F"],"num_claims":13,"abstract":"A plurality of infrared LEDs, e.g., four, and a plurality of photodiodes, e.g., two, are arranged side by side in interleaved fashion in the order of an LED1, a PD1, an LED2, an LED3, a PD2, and an LED4, and are arranged slightly outside a side of the display surface. A threshold value Th is set so as to become small as max(Ei)/max(Aj) calculated from a detection signal of the PD1 when the LED1 emits light, a detection signal of the PD1 when the LED2 emits light, a detection signal of the PD2 when the LED3 emits light, a detection signal of the PD2 when the LED4 emits light, a detection signal of the PD2 when the LED1 emits light, and a detection signal of the PD1 when the LED4 emits light, and the approach of the hand of the user is detected when max(Aj) exceeds the threshold value."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Proximity detection device","description":"A plurality of infrared LEDs, e.g., four, and a plurality of photodiodes, e.g., two, are arranged side by side in interleaved fashion in the order of an LED1, a PD1, an LED2, an LED3, a PD2, and an LE","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11284490","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-11284490","citation_suggestion":"Patentable. \"Proximity detection device\" (US-11284490). https://patentable.app/patents/US-11284490","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11284490","json":"https://patentable.app/api/llm-context/US-11284490","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T16:24:59.577Z"}