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:
Jul. 09, 2013
Filed:
May. 25, 2011
Chee Wai Mak, Lamlukka, TH;
Chee Wai Lau, Klongluang, TH;
Suttisak Nilchim, Takuapa, TH;
Burin Jindasuay, Maharaj, TH;
Pramook Toworachot, Huay Kwang, TH;
Chee Wai Mak, Lamlukka, TH;
Chee Wai Lau, Klongluang, TH;
Suttisak Nilchim, Takuapa, TH;
Burin Jindasuay, Maharaj, TH;
Pramook Toworachot, Huay Kwang, TH;
Western Digital Technologies, Inc., Irvine, CA (US);
Abstract
A disk drive is disclosed comprising a disk including a plurality of tracks, a head coupled to an actuator arm actuated over the disk, and control circuitry operable to first seek the head from a first track to a second track, read data from the second track to generate a first read signal, second seek the head from the second track to a third track, read data from the third track to generate a second read signal, third seek the head from the third track to a fourth track, and read data from the fourth track to generate a third read signal. The first, second, and third read signals are evaluated to qualify the disk drive, wherein the first, second, and third seeks are executed in proximity so as to excite the actuator arm with a jitter motion.