The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 23, 2011
Filed:
Jan. 16, 2009
Kyu Nam Cho, Seoul, KR;
Kwang JO Jung, Suwon-si, KR;
Jong Ryul Kim, Gumi-si, KR;
Myoung Joo NA, Gumi-si, KR;
Kyu Nam Cho, Seoul, KR;
Kwang Jo Jung, Suwon-si, KR;
Jong Ryul Kim, Gumi-si, KR;
Myoung Joo Na, Gumi-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A servo track writing method and a servo track write system of a hard disk drive (HDD) using the servo track write method. The servo track writing method includes performing a reference check (R/C) on a first servo pattern which is pre-written on a first surface of a disk, and if the R/C determines that a quality of the first servo pattern is not good, erasing a specific area of the first servo pattern and writing a second servo pattern on a second surface of the disk. Therefore, process time delay factors of a series of rework processes of writing servo patterns on a disk are removed to shorten a process time of the rework processes. In addition, productivity of a HDD is improved.