{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8502491","patent":{"patent_number":"US-8502491","title":"Rotation direction control method for a cooling fan and rotation direction control circuit thereof","assignee":null,"inventors":[],"filing_date":"2010-12-10T00:00:00.000Z","publication_date":"2013-08-06T00:00:00.000Z","cpc_codes":["G05D","G06F"],"num_claims":10,"abstract":"A rotation direction control method of a cooling fan is disclosed. The rotation direction control method includes a detection step, a determination step and a driving step. The detection step receives a temperature control signal from a temperature detection unit by a rotation direction control unit when a predetermined dust-expelling time period begins. The determination step determines whether a detected temperature is higher than a predetermined value based on the temperature control signal by the rotation direction control unit. The driving step controls the rotation direction control unit to keep outputting a cooling signal so as to drive a motor of the cooling fan for a cooling operation when the determination of the determination step is positive."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Rotation direction control method for a cooling fan and rotation direction control circuit thereof","description":"A rotation direction control method of a cooling fan is disclosed. The rotation direction control method includes a detection step, a determination step and a driving step. The detection step receives","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8502491","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-8502491","citation_suggestion":"Patentable. \"Rotation direction control method for a cooling fan and rotation direction control circuit thereof\" (US-8502491). https://patentable.app/patents/US-8502491","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8502491","json":"https://patentable.app/api/llm-context/US-8502491","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T12:22:39.643Z"}