{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8530819","patent":{"patent_number":"US-8530819","title":"Direct current (DC) correction circuit for a time of flight (TOF) photodiode front end","assignee":null,"inventors":[],"filing_date":"2011-01-25T00:00:00.000Z","publication_date":"2013-09-10T00:00:00.000Z","cpc_codes":["G01N","G01S"],"num_claims":18,"abstract":"A system and method that compensates for the effects of ambient light in a time of flight (TOF) sensor front end is provided. Moreover, a direct current (DC) correction loop is utilized at the front end, which removes a DC component from a current generated by the TOF sensor and accordingly prevents saturating the front end. The DC correction loop attenuates the DC component without adding significant thermal noise at a modulation frequency and provides a corrected signal to the front end circuitry. The corrected signal is processed and utilized to detect a position of an object within the optical field of the sensor."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Direct current (DC) correction circuit for a time of flight (TOF) photodiode front end","description":"A system and method that compensates for the effects of ambient light in a time of flight (TOF) sensor front end is provided. Moreover, a direct current (DC) correction loop is utilized at the front e","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8530819","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-8530819","citation_suggestion":"Patentable. \"Direct current (DC) correction circuit for a time of flight (TOF) photodiode front end\" (US-8530819). https://patentable.app/patents/US-8530819","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8530819","json":"https://patentable.app/api/llm-context/US-8530819","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T21:54:55.923Z"}