{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11467268","patent":{"patent_number":"US-11467268","title":"Optical proximity sensor with self-compensation for ambient light and crosstalk using light-to-frequency conversion technique","assignee":null,"inventors":[],"filing_date":"2019-06-23T00:00:00.000Z","publication_date":"2022-10-11T00:00:00.000Z","cpc_codes":["G01S","G01S","G01S","G01S","G01S","G01S"],"num_claims":11,"abstract":"Disclosures of the present invention describe an optical proximity sensor, which is particularly designed to have functionality of canceling an ambient light noise and/or an optical crosstalk noise by using light-to-frequency conversion technique, and comprises: a controlling and processing circuit, a lighting unit, a light receiving unit, an analog adder, a first DAC unit, a second DAC unit, and a light-to-digital conversion (LDC) unit. In the controlling of the controlling and processing circuit, the first DAC unit and the second DAC unit would respectively generate a first compensation current signal and a second compensation current signal to the analog adder, such that a noise signal of ambient light and a noise signal of optical crosstalk existing in an optical current signal of object reflection light would be canceled by the two compensation current signals in the analog adder."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Optical proximity sensor with self-compensation for ambient light and crosstalk using light-to-frequency conversion technique","description":"Disclosures of the present invention describe an optical proximity sensor, which is particularly designed to have functionality of canceling an ambient light noise and/or an optical crosstalk noise by","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11467268","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-11467268","citation_suggestion":"Patentable. \"Optical proximity sensor with self-compensation for ambient light and crosstalk using light-to-frequency conversion technique\" (US-11467268). https://patentable.app/patents/US-11467268","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11467268","json":"https://patentable.app/api/llm-context/US-11467268","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T17:20:45.918Z"}