Patents Represented by Attorney, Agent or Law Firm Gregory Smith & Assoc. - Justia Patents Search

Patents Represented by Attorney, Agent or Law Firm Gregory Smith & Assoc.

METHOD AND APPARATUS DETECTING BASE LINE POPPING NOISE IN A READ HEAD AND STABILIZING THE MAGNETIC DOMAIN OF MERGED MAGNETORESISTIVE READ-WRITE HEADS USING DC WRITE CURRENT AND READ BIAS CURRENT FOR AN ASSEMBLED DISK DRIVE

Patent number: 6828784

Abstract: Methods and apparatus are disclosed determining the presence of base line popping noise for a read head inside an assembled disk drive, as well as, determining read bias conditions for operating the read head free of base line popping noise. These further include performance evaluation of the read head for read bias conditions free of base line popping noise. They also include repairing the read head using DC write current and read bias current within the assembled disk drive.

Type: Grant

Filed: August 22, 2002

Date of Patent: December 7, 2004

Assignee: Samsung Electronics Co., Ltd.

Inventors: Jong Yun Yun, Jae June Kim, Chin Won Cho, Chang Dong Yeo