Patents Represented by Attorney Rodney L. Marret

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  • Bang-bang controlled velocity command generator
    Patent number: 4638230
    Abstract: In a disc information storage system which employs a servo data disc, a servo data head and a moveable carriage assembly for transporting a plurality of magnetic heads radially across the surface of the disc in response to a control signal produced in connection with a velocity command signal, an improved method and apparatus for production of a velocity command signal wherein one or a plurality of discrete velocity steps are added to the velocity command signal in a region which would otherwise indicate only a single value for velocity.
    Type: Grant
    Filed: November 8, 1985
    Date of Patent: January 20, 1987
    Assignee: Ampex Corporation
    Inventor: Patrick S. Lee