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:
Jul. 02, 2002
Filed:
Jan. 14, 1999
Kang-seok Lee, Kumi, KR;
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
A method for setting a read bias current required for reading data written to a hard disk at an optimal bias current using a magneto-resistive (MR) head. The method for setting a read bias current includes the steps of: writing data to the hard disk in a predetermined frequency; reading data from the disk while varying a bias current value applied to the MR head; analyzing frequency characteristics of the read data; and selecting the bias current at which the read data has the best frequency characteristics, as the bias current of the MR head. In the method, the optimal read bias current is set within a short time through a fast Fourier transform (FFT), thereby reducing the processing time.