{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9602750","patent":{"patent_number":"US-9602750","title":"Image sensor pixels having built-in variable gain feedback amplifier circuitry","assignee":null,"inventors":[],"filing_date":"2014-11-25T00:00:00.000Z","publication_date":"2017-03-21T00:00:00.000Z","cpc_codes":["H04N","H04N","H04N","H04N","H04N","H04N"],"num_claims":17,"abstract":"An image sensor may include an array of image sensor pixels. Each pixel may have a photodiode, a floating diffusion node, and charge transfer gate. An amplifying transistor may have a gate terminal coupled to the floating diffusion and a drain terminal coupled to an output node. The amplifying transistor may provide signal corresponding to transferred charge with a greater than unity voltage gain. A negative voltage feedback capacitor having variable capacitance may be coupled between the output node and the floating diffusion node thereby increasing the pixel dynamic range. A reset transistor may be coupled between the floating diffusion and output node. The amplifying transistor may include a p-channel transistor formed within a mini n-well region of the pixel or an n-channel transistor formed within a mini p-well region. The pixel may have increased storage capacity and dynamic range relative to conventional designs."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Image sensor pixels having built-in variable gain feedback amplifier circuitry","description":"An image sensor may include an array of image sensor pixels. Each pixel may have a photodiode, a floating diffusion node, and charge transfer gate. An amplifying transistor may have a gate terminal co","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9602750","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-9602750","citation_suggestion":"Patentable. \"Image sensor pixels having built-in variable gain feedback amplifier circuitry\" (US-9602750). https://patentable.app/patents/US-9602750","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9602750","json":"https://patentable.app/api/llm-context/US-9602750","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T14:39:05.079Z"}