Patents by Inventor Edward Ryer Hitchcock

Edward Ryer Hitchcock 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).

  • Calibrating test equipment
    Patent number: 6202030
    Abstract: A method and apparatus are used to calibrate uncalibrated test equipment using reference devices. For each device, the calibrated test equipment is used to test the device to obtain a reference specification value. One of the devices is then selected, and an electrical identification from the selected device is retrieved. The electrical identification is associated with one of the reference specification values. A channel of the uncalibrated test equipment is used to test the selected device to obtain a measured specification value. The reference specification value associated with the electrical identification is compared with the measured specification value. Based on this comparison, the channel is calibrated.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: March 13, 2001
    Assignee: Micron Technology, Inc.
    Inventor: Edward Ryer Hitchcock
  • Calibrating test equipment
    Patent number: 6032107
    Abstract: A method and apparatus are used to calibrate uncelebrated test equipment using reference devices. For each device, the calibrated test equipment is used to test the device to obtain a reference specification value. One of the devices is then selected, and an electrical identification from the selected device is retrieved. The electrical identification is associated with one of the reference specification values. A channel of the uncelebrated test equipment is used to test the selected device to obtain a measured specification value. The reference specification value associated with the electrical identification is compared with the measured specification value. Based on this comparison, the channel is calibrated.
    Type: Grant
    Filed: May 19, 1998
    Date of Patent: February 29, 2000
    Assignee: Micron Technology, Inc.
    Inventor: Edward Ryer Hitchcock