Computer graphics processing and selective visual display system – Display peripheral interface input device
Reexamination Certificate
2007-10-09
2007-10-09
Lao, Lun-Yi (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
C345S161000, C345S163000, C345S167000, C341S034000
Reexamination Certificate
active
10425718
ABSTRACT:
Embodiments of the invention relate to a hierarchical method for generating force feedback effects. In one embodiment, a method comprises receiving a first force contribution associated with a first (e.g., previous) position of a manipulandum; determining a second force contribution associated with a second (e.g., current) position of the manipulandum; and outputting a force signal to an actuator coupled to the manipulandum, such that the actuator renders a feedback force having a sum of the first and second force contributions. The method may further include classifying force effects according to a predetermined “hierarchy” (or “priority”) scheme, whereby the second force contribution is related to “high” priority force effects associated with the second position, and the first force contribution is related to “low” priority force effects associated with the first position. As such, computation delay in outputting force feedback effects can be substantially reduced, thereby enhancing the stability and performance of the underlying force feedback system.
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Immersion Corporation
Lao Lun-Yi
Thelen Reid Brown Raysman & Steiner LLP
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