{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8477445","patent":{"patent_number":"US-8477445","title":"Write clock synchronization appartus for magnetic recording disk drives with patterned media","assignee":null,"inventors":[],"filing_date":"2012-12-05T00:00:00.000Z","publication_date":"2013-07-02T00:00:00.000Z","cpc_codes":["G11B","G11B","G11B","G11B","G11B","G11B","G11B"],"num_claims":8,"abstract":"A write clock generator for use in writing data to a rotating patterned magnetic media disk is disclosed. The generator includes a magnetic read head for generating a succession of servo signals representative of succession of servo magnetization patterns detected from a corresponding succession of arcuate sectors along a circular data track on the disk. A preamble processor generates a corresponding succession of sector pair signals representative of the lengths of adjacent sectors along the data track on a rolling pair-wise basis. A next sector length predictor processor determines for a succession of pairs of sectors, a length ratio of the lengths of the sectors in the respective pairs of sectors. A clock generator generates a periodic clock for each sector of the succession of sectors, wherein the clock rate associated with a current sector has an associated phase deviation relative to a clock rate associated with a previous sector, which is proportional to the length ratio for the current sector and the previous sector."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Write clock synchronization appartus for magnetic recording disk drives with patterned media","description":"A write clock generator for use in writing data to a rotating patterned magnetic media disk is disclosed. The generator includes a magnetic read head for generating a succession of servo signals repre","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8477445","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-8477445","citation_suggestion":"Patentable. \"Write clock synchronization appartus for magnetic recording disk drives with patterned media\" (US-8477445). https://patentable.app/patents/US-8477445","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8477445","json":"https://patentable.app/api/llm-context/US-8477445","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T17:29:14.315Z"}