Sliding mask variable resolution velocity trajectory for track following servo
AssigneeInternational Business Machines Corporation
InventorMichael L. Workman
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Abstract
A servo system generates a velocity profile for moving a load from one position to another by dividing the time during which the load is moving into a plurality of segments, each segment being one half as long as the preceding segment. For each segment a fixed number of desired velocity values are stored and used to control the velocity of the moving load. This results in increasing resolution of the velocity wave as the load approaches its desired position, while not requiring excessive storage capacity for storing the desired velocity values.
Claims7
Apparatus for generating a velocity profile for servo system, said velocity profile representing the desired velocity of the load of said servo system in moving from one position to another, comprising
- means for dividing the time during which said servo system is moving said load into a plurality of segments, each of said segments being half the size of the preceding segment,
- means for generating for each of said segments a fixed number of values for the desired velocity of said load, and
- means for utilizing said generated velocity values for controlling the moving of said load.
Dependencies are inferred from the claim text.