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. 14, 2017
Filed:
Aug. 06, 2010
Applicants:
John Contreras, Palo Alto, CA (US);
Tatemi Ido, Hachioji, JP;
Nobumasa Nishiyama, Yokohama, JP;
Xinzhi Xing, San Jose, CA (US);
Inventors:
John Contreras, Palo Alto, CA (US);
Tatemi Ido, Hachioji, JP;
Nobumasa Nishiyama, Yokohama, JP;
Xinzhi Xing, San Jose, CA (US);
Assignee:
HGST NETHERLANDS B.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/09 (2006.01); G11B 5/02 (2006.01); G11B 20/10 (2006.01);
U.S. Cl.
CPC ...
G11B 5/02 (2013.01); G11B 20/10018 (2013.01); G11B 2220/2516 (2013.01);
Abstract
A method and apparatus is provided for extending a read bandwidth and increasing a high-frequency signal-to-noise ratio (SNR) of a front-end of a read path of a hard disk drive (HDD) by introducing a high impedance section at the front-end of the read path. The high impedance section may mitigate capacitive effects found at the front-end of the read path, thereby improving signal transfer by extending the read bandwidth.