{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9817488","patent":{"patent_number":"US-9817488","title":"Optical navigation device and related automatic magnification adjusting method","assignee":null,"inventors":[],"filing_date":"2015-01-21T00:00:00.000Z","publication_date":"2017-11-14T00:00:00.000Z","cpc_codes":["G06F","G06F"],"num_claims":22,"abstract":"An automatic magnification adjusting method is applied to an optical navigation device. The optical navigation device has an illumination channel, a reference channel and an imaging channel. The reference channel has a reference feature with a known parameter. The automatic magnification adjusting method includes driving the illumination channel and the reference channel to alternatively output a detecting image and a reference image, capturing a series of navigation images consisting of the detecting image and the reference image by the imaging channel, analyzing the reference image to recognize the reference feature, calculating a compensating factor according to a detected parameter of the reference feature, and adjusting magnification of the detecting image by the compensating factor to output corresponding coordinate displacement."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Optical navigation device and related automatic magnification adjusting method","description":"An automatic magnification adjusting method is applied to an optical navigation device. The optical navigation device has an illumination channel, a reference channel and an imaging channel. The refer","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9817488","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-9817488","citation_suggestion":"Patentable. \"Optical navigation device and related automatic magnification adjusting method\" (US-9817488). https://patentable.app/patents/US-9817488","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9817488","json":"https://patentable.app/api/llm-context/US-9817488","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:38:44.235Z"}