[n: With Optical Servo Tracking] [n9704] {g11b 5/596l} Patents (Class G9B/5.226)
  • METHOD FOR ESTIMATING POSITION ERROR GAIN FOR HARD DISK DRIVES
    Publication number: 20100053799
    Abstract: A hard disk drive with a controller that determines a position error signal gain. The position error signal gain is determined from a total servo loop gain and a function that is defined by a slope of a line of A and B servo bits measured at N off-track positions. The function determines an actual plant gain and thus provides a more accurate position error signal gain.
    Type: Application
    Filed: September 3, 2008
    Publication date: March 4, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Ik Kang, Sang Hoon Chu