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:
Jun. 02, 2015
Filed:
Mar. 12, 2013
Western Digital Technologies, Inc., Irvine, CA (US);
Guoxiao Guo, Irvine, CA (US);
Richard K. Wong, San Jose, CA (US);
Davide Giovenzana, Longmont, CO (US);
John W. Vanlaanen, Louisville, CO (US);
Teik EE Yeo, Trabuco Canyon, CA (US);
Jie Yu, Irvine, CA (US);
Western Digitial Technologies, Inc., Irvine, CA (US);
Abstract
A disk drive is disclosed comprising a disk having a plurality of data tracks defined by servo sectors, where each data track comprises a plurality of data sectors, and each servo sector comprises a servo preamble and servo data. The disk drive further comprises a head comprising a read element and a write element, and a servo read channel comprising an analog front end and a timing recovery circuit. During an access operation, data preceding the servo preamble of a first servo sector in the first data track is read in order to initialize the analog front end of the servo read channel. At least part of the servo preamble is read to initialize the timing recovery circuit of the servo read channel, and at least part of the servo data of the servo sector is read using the timing recovery circuit.