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:
Mar. 12, 2013
Filed:
Nov. 08, 2010
Kezhao Zhang, Fremont, CA (US);
Jizhong He, San Jose, CA (US);
Shanlin Duan, Fremont, CA (US);
Jane Jie Zhang, San Jose, CA (US);
Zhupei Shi, San Jose, CA (US);
Kezhao Zhang, Fremont, CA (US);
Jizhong He, San Jose, CA (US);
Shanlin Duan, Fremont, CA (US);
Jane Jie Zhang, San Jose, CA (US);
Zhupei Shi, San Jose, CA (US);
HGST Netherlands B.V., Amsterdam, NL;
Abstract
Approaches for a testing device for selecting a discrete track media (DTM) format for use with a particular head of a hard-disk drive (HDD). The testing device comprises a continuous magnetic-recording disk, rotatably mounted on a spindle, which stores data using a continuous media format. The testing device also comprises a testing module configured to simulate reading data, stored using a discrete track media (DTM) format, from the continuous magnetic-recording medium. Advantageously, testing time and cost is reduced as both discrete track media (DTM) disks and expensive discrete track media (DTM) recording testing hardware are not required to select the optimal a discrete track media (DTM) format for use with a particular head of a hard-disk drive (HDD). In addition, embodiments may be used to optimize features of the tracks of the DTM disk, such as the land to groove ratio.