Patents by Inventor TzeMing Pang

TzeMing Pang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • System and method for reducing ZAP time and track squeeze in a data storage device
    Publication number: 20050185319
    Abstract: A method and apparatus for compensating for errors in servo systems. An improved zero acceleration path (ZAP) correction technique is provided, wherein selected tracks of a data storage device are used for ZAP processing in order to reduce the overall time required to perform error compensation for a storage device. For a given selected track to be ZAPed, track profiles of adjoining tracks are used in addition to the track profile of the selected track as part of the ZAP correction determination for the selected track. Using adjacent track profiles as part of the ZAP correction determination assists in mitigating AC track squeeze issues that would otherwise occur when performing selective track ZAPing.
    Type: Application
    Filed: February 24, 2004
    Publication date: August 25, 2005
    Inventors: Xiong Liu, Qiang Bi, TzeMing Pang, ChoonKiat Lim