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:
May. 06, 2014
Filed:
Dec. 04, 2012
Western Digital Technologies, Inc., Irvine, CA (US);
Robert P. Ryan, Mission Viejo, CA (US);
Erik J. Eklund, Costa Mesa, CA (US);
Hien T. Chu, Fountain Valley, CA (US);
Alain Chahwan, Irvine, CA (US);
Duc T. Phan, Saratoga, CA (US);
Western Digital Technologies, Inc., Irvine, CA (US);
Abstract
A disk drive is disclosed comprising a head actuated over a disk, and control circuitry including a shock detector. A shock threshold of the shock detector is initialized, and a first number of shock events is detected in response to the shock detector operating at the initial shock threshold. When the first number of shock events exceeds an upper event threshold, a control signal is adjusted in order to adjust a frequency spectrum of noise affecting the shock detector. After adjusting the control signal, a second number of shock events is detected in response to the shock detector operating at the initial shock threshold. When the second number of shock events exceeds the upper event threshold, the shock threshold is increased.