{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9851674","patent":{"patent_number":"US-9851674","title":"Displacement detector and image forming device having the same","assignee":null,"inventors":[],"filing_date":"2017-02-02T00:00:00.000Z","publication_date":"2017-12-26T00:00:00.000Z","cpc_codes":["G01S","G01S","G01S","G01S"],"num_claims":13,"abstract":"An emission unit of a displacement detector emits laser light to a range in a space in which a target moves. A detection unit detects a distribution of amounts of light reflected from a capture region in the predefined range. Based on a shift of speckle pattern indicated by a difference between the distributions of amounts of reflected light that the detection unit detects at different times, a calculation unit calculates a displacement of the target. A correction unit measures a speckle contrast from the distribution of amounts of reflected light, and based on an error between the measured value and a reference value, corrects the amount of laser light. The reference value is set to the value of a speckle contrast in a case in which the amounts of reflected light fall within the detectable range of the detection unit."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Displacement detector and image forming device having the same","description":"An emission unit of a displacement detector emits laser light to a range in a space in which a target moves. A detection unit detects a distribution of amounts of light reflected from a capture region","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9851674","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-9851674","citation_suggestion":"Patentable. \"Displacement detector and image forming device having the same\" (US-9851674). https://patentable.app/patents/US-9851674","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9851674","json":"https://patentable.app/api/llm-context/US-9851674","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T11:37:28.131Z"}