{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8537486","patent":{"patent_number":"US-8537486","title":"Disk drive writing spiral tracks on a slave surface using repeatable runout compensation for a master surface","assignee":null,"inventors":[],"filing_date":"2011-08-10T00:00:00.000Z","publication_date":"2013-09-17T00:00:00.000Z","cpc_codes":["G11B","G11B","G11B"],"num_claims":16,"abstract":"A method is disclosed of servo writing a disk drive comprising a first head actuated over a first disk surface, and a second head actuated over a second disk surface. A first repeatable runout (RRO) of the first disk surface is measured, and a seek is performed to seek the first head over the first disk surface in response to the measured first RRO while writing a first spiral track to the second disk surface using the second head. As a result, the first spiral track comprises a second RRO that substantially matches the first RRO of the first disk surface."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Disk drive writing spiral tracks on a slave surface using repeatable runout compensation for a master surface","description":"A method is disclosed of servo writing a disk drive comprising a first head actuated over a first disk surface, and a second head actuated over a second disk surface. A first repeatable runout (RRO) o","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8537486","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-8537486","citation_suggestion":"Patentable. \"Disk drive writing spiral tracks on a slave surface using repeatable runout compensation for a master surface\" (US-8537486). https://patentable.app/patents/US-8537486","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8537486","json":"https://patentable.app/api/llm-context/US-8537486","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T19:33:51.011Z"}