{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11508404","patent":{"patent_number":"US-11508404","title":"Magnetic disk device and method of compensating for harmonic corresponding to harmonic disturbance","assignee":null,"inventors":[],"filing_date":"2022-01-20T00:00:00.000Z","publication_date":"2022-11-22T00:00:00.000Z","cpc_codes":["G11B","G11B","G11B"],"num_claims":20,"abstract":"According to one embodiment, a magnetic disk device includes a disk, a head that writes data to the disk and reads data from the disk, an actuator that is rotationally driven and controls movement of the head mounted on the disk, and a controller that estimates a fundamental frequency of a position error signal generated in positioning control of the head, the fundamental frequency corresponding to a disturbance having harmonics, determines the fundamental frequency, determines the number of delay samples based on the fundamental frequency, and suppresses a multiplied frequency that is a harmonic of the fundamental frequency according to the number of the delay samples."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Magnetic disk device and method of compensating for harmonic corresponding to harmonic disturbance","description":"According to one embodiment, a magnetic disk device includes a disk, a head that writes data to the disk and reads data from the disk, an actuator that is rotationally driven and controls movement of ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11508404","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-11508404","citation_suggestion":"Patentable. \"Magnetic disk device and method of compensating for harmonic corresponding to harmonic disturbance\" (US-11508404). https://patentable.app/patents/US-11508404","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11508404","json":"https://patentable.app/api/llm-context/US-11508404","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T15:35:46.938Z"}