Patents by Inventor Lada Zajicek

Lada Zajicek 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).

  • Silicone/zirconium ball for use in a cursor control device
    Patent number: 5029292
    Abstract: A substantially spherical ball to be used in a cursor controlling mouse. The mouse ball is formed from a composition of silicone having zirconium dust dispersed uniformly throughout. The zirconium provides the added weight necessary to keep the ball rolling on a working surface, but is not sufficiently conductive to short electrical components in mouse. The uniform composition provides for the mouse ball to have its gravitional center coincident with its geometric center to inhibit cursor jitter when the mouse is manually moved.
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: July 2, 1991
    Assignee: Apple Computer, Inc.
    Inventor: Lada Zajicek
  • Automated testing apparatus for screen alignment
    Patent number: 4897721
    Abstract: The present invention is an automated testing apparatus and process for screen alignment involving a pattern generator, sensors, and an analysis computer. Two sets of patterns are displayed on the screen being tested. Sensors are used to observe patterns on the screen. An analysis computer receives the data from these observations and then compares the observed data to data from an ideal screen to determine the screen's alignment parameters.
    Type: Grant
    Filed: May 16, 1988
    Date of Patent: January 30, 1990
    Assignee: Apple Computer
    Inventors: Stephen J. Young, Mike K. Blackwell, Kevin J. Dowling, Hans P. Moravec, Lada Zajicek