Patents by Inventor Pat G. Zaun

Pat G. Zaun 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).

  • Dual mode auto-balancer for DVD drives
    Patent number: 6061325
    Abstract: A (DVD) drive unit for a variety of optical media including DVD discs or CD-ROM discs is capable of eliminating vibration while rotating and reading the optical media at either a constant linear velocity (CLV) or a constant angular velocity (CAV). In CAV mode, the drive unit uses ball bearings which are movable within a cavity in the turntable to counterbalance an unbalanced disc. In CLV mode, the drive unit utilizes a series of electromagnets to capture and symmetrically array the ball bearings within the cavity around the turntable.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: May 9, 2000
    Assignee: International Business Machines Corporation
    Inventor: Pat G. Zaun