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.:

US 8159771 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 17, 2012

Filed:

Jun. 01, 2007
Applicants:

Chee Wee Cheng, Singapore, SG;

Beng Theam Ko, Singapore, SG;

Liu LI, Singapore, SG;

Zhen Yu Sun, Singapore, SG;

Myint Ngwe, Singapore, SG;

Inventors:

Chee Wee Cheng, Singapore, SG;

Beng Theam Ko, Singapore, SG;

Liu Li, Singapore, SG;

Zhen Yu Sun, Singapore, SG;

Myint Ngwe, Singapore, SG;

Assignee:

Seagate Technology LLC, Cupertino, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/147 (2006.01);
U.S. Cl.
CPC ...
Abstract

The disclosure is related to pulse width modulating a power signal to a heat resistive element of a transducer. The power signal may be a power output signal of preamplifier. The power signal may be provided to a heat resistive element in a transducer that is operable to read data from or write data to a data storage medium. The pulse width modulated power signal can allow for controlling the heating of the heat resistive element based on a thermal time constant of the heat resistive element and based on adjustable components of the pulse width modulated power signal.


Find Patent Forward Citations

Cheng, Chee. (2012). Controlling a heat resistive element with a pulse modulated signal (U.S. Patent No. 8159771). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8159771

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