{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8508726","patent":{"patent_number":"US-8508726","title":"Rotary position detector and associated methods","assignee":null,"inventors":[],"filing_date":"2011-05-09T00:00:00.000Z","publication_date":"2013-08-13T00:00:00.000Z","cpc_codes":["G01D","G01D"],"num_claims":28,"abstract":"A rotary position detector includes a housing having an inner space having a reflective element. A light source emits light rays upwardly. A base supports a light detector assembly having a first number of toroidal-sector-shaped light sensors disposed in pairs about a motor shaft axis, one “A” detector element and one “B” detector element alternately disposed. A light blocker positioned between the light source and the light sensors rotates with the shaft. The light blocker includes a second number of opaque, equal-surface-area elements arrayed about the axis, the second number equal to one-half the first number. A circuit measures a signal from the “A” and “B” detectors relating to an amount of light falling thereon, a difference related to an angular position of the motor shaft."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Rotary position detector and associated methods","description":"A rotary position detector includes a housing having an inner space having a reflective element. A light source emits light rays upwardly. A base supports a light detector assembly having a first numb","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8508726","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-8508726","citation_suggestion":"Patentable. \"Rotary position detector and associated methods\" (US-8508726). https://patentable.app/patents/US-8508726","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8508726","json":"https://patentable.app/api/llm-context/US-8508726","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T16:46:45.827Z"}