{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11943542","patent":{"patent_number":"US-11943542","title":"Imaging devices with single-photon avalanche diodes having sub-exposures for high dynamic range","assignee":null,"inventors":[],"filing_date":"2021-09-23T00:00:00.000Z","publication_date":"2024-03-26T00:00:00.000Z","cpc_codes":["H04N","G01S","G01S","G06T","H04N","H04N","H04N","H04N","H04N","G06T","G06T","G06T"],"num_claims":20,"abstract":"An imaging device may include single-photon avalanche diodes (SPADs). To improve the sensitivity and signal-to-noise ratio of the SPADs, photon detection efficiency (PDE) may be increased. However increased photon detection efficiency may result in a decreased saturation rate and lower than desired dynamic range. To increase the dynamic range, a SPAD-based semiconductor device may operate with multiple sub-exposures. During the first sub-exposure, an over-bias voltage may be set to a first voltage level so that the SPADs have a first photon detection efficiency. During the second sub-exposure, the over-bias voltage may be set to a second voltage level so that the SPADs have a second photon detection efficiency that is different than the first photon detection efficiency. Image data from the first and second sub-exposures may then be combined into a single high dynamic range depth map."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Imaging devices with single-photon avalanche diodes having sub-exposures for high dynamic range","description":"An imaging device may include single-photon avalanche diodes (SPADs). To improve the sensitivity and signal-to-noise ratio of the SPADs, photon detection efficiency (PDE) may be increased. However inc","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11943542","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-11943542","citation_suggestion":"Patentable. \"Imaging devices with single-photon avalanche diodes having sub-exposures for high dynamic range\" (US-11943542). https://patentable.app/patents/US-11943542","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11943542","json":"https://patentable.app/api/llm-context/US-11943542","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T19:15:41.340Z"}