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:
Apr. 28, 2009
Filed:
Nov. 13, 2006
Jae-hyuk Han, Seoul, KR;
Cheol-soon Kim, Anyang-si, KR;
Gun-hee Jang, Seoul, KR;
Sang-jin Park, Seoul, KR;
Jae-hyuk Han, Seoul, KR;
Cheol-soon Kim, Anyang-si, KR;
Gun-hee Jang, Seoul, KR;
Sang-jin Park, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Abstract
Embodiments of the invention provide a hard disk drive (HDD) adapted to detect when an HDD is in a free-fall state and park a head prior to impact. The HDD comprises a spindle motor comprising a rotary body and adapted to rotate a disk, wherein the disk is adapted to store data; an actuator adapted to move a read/write head to a desired position above the disk in order to read/write data; and a flying height sensor adapted to measure a flying height of the rotary body in real time. The HDD further comprises a monitor adapted to monitor the measured flying height and generate a free-fall signal when the monitor determines that the HDD is in a free-fall state; and a central controller adapted to initiate an operation for parking the read/write head in response to the free-fall signal.