Hybrid control of haptic feedback for host computer and interface device
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United States of America Patent
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Mar 29, 2011
Grant Date -
Feb 18, 2010
app pub date -
Feb 3, 2009
filing date -
Nov 13, 1996
priority date (Note) -
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Abstract
A hybrid haptic feedback system in which a host computer and haptic feedback device share processing loads to various degrees in the output of haptic sensations, and features for efficient output of haptic sensations in such a system. A haptic feedback interface device in communication with a host computer includes a device microcontroller outputting force values to the actuator to control output forces. In various embodiments, the microcontroller can determine force values for one type of force effect while receiving force values computed by the host computer for a different type of force effect. For example, the microcontroller can determine closed loop effect values and receive computed open loop effect values from the host; or the microcontroller can determine high frequency open loop effect values and receive low frequency open loop effect values from the host. Various features allow the host to efficiently stream computed force values to the device.
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