Patent Number: 6,310,739

Title: Method and system for detection recording media defacts

Abstract: A discrete-time filtering method for identifying defects in a magnetic medium, comprising the steps of: reading data signals from at least a portion of the medium; sampling the data signals to generate discrete time sample data; processing the sample data in a discrete time filter to detect deviation of the signal corresponding to media defects; and comparing the deviation of the signal to one or more threshold values to identify corresponding defect types on the recording medium. The filter can be configured to have an impulse response substantially matched to deviation of the signal corresponding to media defects.

Inventors: McEwen; Peter A. (Santa Clara, CA), Zafer; Bahjat (Sunnyvale, CA), Fitzpatrick; Kelly K. (Westborough, MA), Han; Ke (Davis, CA), Aronson; Steve (San Jose, CA), Fisher; Kevin (Palo Alto, CA)

Assignee: Maxtor Corporation

International Classification: G01R 33/12 (20060101); G11B 27/36 (20060101); G11B 5/00 (20060101); G11B 5/012 (20060101); G11B 33/10 (20060101); G11B 33/00 (20060101); G11B 005/02 (); G11B 005/09 ()

Expiration Date: 10/30/2018