Patents by Inventor Ralf Brown

Ralf Brown 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).

  • Apparatus and method for predicting failure of a disk drive
    Patent number: 6980381
    Abstract: A system for predicting failure of a disk is provided. A test string of performance sensitive reads is built and calibrated. That is, the positioning time and spindle speed for each performance sensitive read is logged. The test string is then applied to a disk and the positioning time and spindle speed for each performance sensitive read, as applied, is measured. The calibrated positioning times and spindle speeds are then compared with the measured positioning times and spindle speeds. The comparison result is used as a reliable predictor for disk failure.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: December 27, 2005
    Inventors: William F. Gray, Ralf Brown
  • Apparatus and method for predicting failure of a disk drive
    Publication number: 20020053046
    Abstract: A system for predicting failure of a disk is provided. A test string of performance sensitive reads is built and calibrated. That is, the positioning time and spindle speed for each performance sensitive read is logged. The test string is then applied to a disk and the positioning time and spindle speed for each performance sensitive read, as applied, is measured. The calibrated positioning times and spindle speeds are then compared with the measured positioning times and spindle speeds. The comparison result is used as a reliable predictor for disk failure.
    Type: Application
    Filed: April 23, 2001
    Publication date: May 2, 2002
    Inventors: William F. Gray, Ralf Brown
  • Apparatus and method for predicting failure of a disk drive
    Patent number: 6249887
    Abstract: A system for predicting failure of a disk is provided. A test string of performance sensitive reads is built and calibrated. That is, the positioning time and spindle speed for each performance sensitive read is logged. The test string is then applied to a disk and the positioning time and spindle speed for each performance sensitive read, as applied, is measured. The calibrated positioning times and spindle speeds are then compared with the measured positioning times and spindle speeds. The comparison result is used as a reliable predictor for disk failure.
    Type: Grant
    Filed: September 21, 1998
    Date of Patent: June 19, 2001
    Inventors: William F. Gray, Ralf Brown