Patents by Inventor Peter James Wachowiak

Peter James Wachowiak 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).

  • Patent number: 5935261
    Abstract: A method and apparatus are provided for detecting handling damage in a direct access storage device (DASD). The DASD has at least one disk mounted for rotation and a transducer mounted for movement across tracks recorded on the at least one disk. Each of the tracks being divided into a plurality of sectors. A handling damage analysis test is performed within a predetermined damage zone on the at least one disk. Test results from the handling damage analysis test are compared with at least one threshold value. An error code is outputted responsive to compared test results being greater than the at least one threshold value. A microcode routine is stored in a random access memory (RAM) in the DASD. The microcode routine is performed for detecting handling damage in the direct access storage device (DASD) upon installation. An error code is outputted to a host interface responsive to compared test results greater than a threshold value.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: August 10, 1999
    Assignee: International Business Machines Corporation
    Inventors: Michael David Blachek, Michael Allan Neumann, Gordon James Smith, Peter James Wachowiak