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:
Feb. 03, 2015
Filed:
Apr. 12, 2013
Applicant:
Seagate Technology Llc, Cupertino, CA (US);
Inventor:
Bruce Douglas Emo, Longmont, CO (US);
Assignee:
Seagate Technology LLC, Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/02 (2006.01); G11B 21/02 (2006.01); G11B 5/60 (2006.01); G11B 5/596 (2006.01); G11B 5/40 (2006.01); G11B 5/455 (2006.01); G11B 19/04 (2006.01);
U.S. Cl.
CPC ...
G11B 21/02 (2013.01); G11B 5/6076 (2013.01); G11B 5/59622 (2013.01); G11B 5/40 (2013.01); G11B 5/455 (2013.01); G11B 5/6005 (2013.01); G11B 5/6029 (2013.01); G11B 19/048 (2013.01);
Abstract
A data storage system having a read channel configured to function in a normal operation mode and a test mode. In the normal operation mode, the read channel is configured to decode a readback signal to obtain data bits. In the test mode, the read channel is configured to extract gain control loop data and/or timing control loop data from the readback signal.