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:
Aug. 26, 2008
Filed:
Feb. 24, 2006
John Contreras, Palo Alto, CA (US);
Takashi Ikeda, Kamakura, JP;
Yumi Nagano, Fujisawa, JP;
Nobumasa Nishiyama, Yokohama, JP;
Toyomi Ohsawa, Kawasaki, JP;
Mike Suk, Palo Alto, CA (US);
John Contreras, Palo Alto, CA (US);
Takashi Ikeda, Kamakura, JP;
Yumi Nagano, Fujisawa, JP;
Nobumasa Nishiyama, Yokohama, JP;
Toyomi Ohsawa, Kawasaki, JP;
Mike Suk, Palo Alto, CA (US);
Hitachi Global Storage Technologies Netherlands BV, Amsterdam, NL;
Abstract
A system and method for preventing crosstalk noise from being superimposed on a read signal due to noise from a heater line for a slider in a recording disk drive is disclosed. A heater line pair to the slider is not grounded but is in a floating state with respect to an actuator support structure. A heater driver allows a heater current to flow between a positive power supply voltage and a negative power supply voltage. The heater line pair is not grounded, so an impedance is high as viewed from a magnetic disk. Thus, it is possible to effectively suppress a noise transmitted from the magnetic disk and read signal quality is kept from deteriorating due to the crosstalk from the heater line.