{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11257854","patent":{"patent_number":"US-11257854","title":"Pixel-level background light subtraction","assignee":null,"inventors":[],"filing_date":"2018-08-24T00:00:00.000Z","publication_date":"2022-02-22T00:00:00.000Z","cpc_codes":["G01S","G01S","G01S"],"num_claims":21,"abstract":"A pixel circuit, a method for performing a pixel-level background light subtraction, and an imaging device are disclosed. In one example of the present disclosure, the pixel circuit includes an overflow gate transistor, a photodiode, and two taps. Each tap of the two taps is configured to store a background signal that is integrated by the photodiode, subtract the background signal from a floating diffusion, store a combined signal that is integrated by the photodiode at the floating diffusion, and generate a demodulated signal based on a subtraction of the background signal from the floating diffusion and a storage of the combined signal that is integrated at the floating diffusion."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Pixel-level background light subtraction","description":"A pixel circuit, a method for performing a pixel-level background light subtraction, and an imaging device are disclosed. In one example of the present disclosure, the pixel circuit includes an overfl","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11257854","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-11257854","citation_suggestion":"Patentable. \"Pixel-level background light subtraction\" (US-11257854). https://patentable.app/patents/US-11257854","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11257854","json":"https://patentable.app/api/llm-context/US-11257854","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T10:00:22.393Z"}