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. 20, 2012
Filed:
Jul. 22, 2009
Shaoping LI, San Ramon, CA (US);
Yimin Guo, San Jose, CA (US);
Francis H. Liu, Fremont, CA (US);
Sining Mao, Fremont, CA (US);
Shaoping Li, San Ramon, CA (US);
Yimin Guo, San Jose, CA (US);
Francis H. Liu, Fremont, CA (US);
Sining Mao, Fremont, CA (US);
Western Digital (Fremont), LLC, Fremont, CA (US);
Abstract
A disk drive is disclosed comprising a disk having a plurality of data tracks, and a head actuated over the disk, the head comprising a first read element and a second read element. A data track is read to generate a first read signal emanating from the first read element and a second read signal emanating from the second read element. The first read signal is delayed relative to the second read signal to generate a delayed read signal, and the second read signal is combined with the delayed read signal to generate a combined read signal. An estimated data sequence is detected from the combined read signal.