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:
Oct. 16, 2012
Filed:
Dec. 21, 2010
William D. Huber, Hollister, CA (US);
William D. Huber, Hollister, CA (US);
Western Digital (Fremont), LLC, Fremont, CA (US);
Abstract
A method and system for providing an energy assisted magnetic recording (EAMR) disk drive are described. The disk drive includes a magnetic recording media, a pre-amplifier, an EAMR head, and at least one clock recovery circuit. The pre-amplifier provides a write current signal and a write gate signal for providing power to the EAMR head. The EAMR head includes at least one write transducer and at least one laser. The write transducer(s) are coupled with the pre-amplifier and include at least one writer coil. The write current signal from the pre-amplifier drives the writer coil(s). The clock recovery circuit(s) are coupled with the laser(s). The clock recovery circuit(s) receive the write current signal and the write gate signal and output laser control signal(s) that energize the laser(s) such that the laser(s) are energized synchronously with the writer coil(s).