Method and apparatus for sub-span interpolation
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United States of America Patent
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Aug 1, 1995
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app pub date -
Apr 26, 1994
filing date -
Dec 18, 1992
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Abstract
A method for efficiently interpolating sub-span position commands for control of a machine member. The method includes storing a set of coefficients defined by a parametric function relating member position and time, calculating the distance between a target coordinate axis position command and a current coordinate axis position command, generating first and second command modifiers from the stored coefficients, the calculated distance, and a current coordinate axis position command, and summing the current coordinate axis position command and the first and second command modifiers to generate a subspan position command.
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