{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9633689","patent":{"patent_number":"US-9633689","title":"Continuously zoned servo preamble detection and frequency acquisition","assignee":null,"inventors":[],"filing_date":"2016-01-19T00:00:00.000Z","publication_date":"2017-04-25T00:00:00.000Z","cpc_codes":["G11B","G11B"],"num_claims":20,"abstract":"An apparatus for storing data includes a storage medium with user data regions and with servo data regions containing preamble patterns. Servo data in the servo data regions is written with a varying clock frequency across the storage medium. The apparatus also includes a head assembly disposed in relation to the storage medium and operable to read and write data on the storage medium. The apparatus also includes a preamble detection circuit adapted to search an input stream derived from the head assembly for the preamble patterns in a number of frequency bins."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Continuously zoned servo preamble detection and frequency acquisition","description":"An apparatus for storing data includes a storage medium with user data regions and with servo data regions containing preamble patterns. Servo data in the servo data regions is written with a varying ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9633689","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-9633689","citation_suggestion":"Patentable. \"Continuously zoned servo preamble detection and frequency acquisition\" (US-9633689). https://patentable.app/patents/US-9633689","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9633689","json":"https://patentable.app/api/llm-context/US-9633689","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T13:16:06.679Z"}