{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9825787","patent":{"patent_number":"US-9825787","title":"Data storage device adapting two-dimensional equalizer based on off-track offset","assignee":null,"inventors":[],"filing_date":"2017-05-15T00:00:00.000Z","publication_date":"2017-11-21T00:00:00.000Z","cpc_codes":["G11B","G11B","H04L"],"num_claims":21,"abstract":"A data storage device is disclosed comprising a head actuated over a disk, and a two-dimensional (2D) equalizer comprising a plurality of coefficients. A plurality of stored coefficients are accessed based on a first off-track offset of the head in order to first initialize the coefficients of the 2D equalizer, and then the coefficients of the 2D equalizer are first adapted based at least on a first read signal to generate first adapted coefficients. The plurality of stored coefficients are accessed based on a second off-track offset of the head in order to second initialize the coefficients of the 2D equalizer, and then the coefficients of the 2D equalizer are second adapted based at least on the first read signal to generate second adapted coefficients."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Data storage device adapting two-dimensional equalizer based on off-track offset","description":"A data storage device is disclosed comprising a head actuated over a disk, and a two-dimensional (2D) equalizer comprising a plurality of coefficients. A plurality of stored coefficients are accessed ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9825787","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-9825787","citation_suggestion":"Patentable. \"Data storage device adapting two-dimensional equalizer based on off-track offset\" (US-9825787). https://patentable.app/patents/US-9825787","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9825787","json":"https://patentable.app/api/llm-context/US-9825787","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T04:08:32.487Z"}