Method and apparatus for ordering data processing by multiple processing modules
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United States of America Patent
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Aug 24, 2004
Grant Date -
Dec 26, 2002
app pub date -
Aug 1, 2002
filing date -
May 4, 1999
priority date (Note) -
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Abstract
Data processing is performed by multiple 'plug-in' processing modules controlled by an execution management framework. The framework includes an order determining mechanism that controls the plug-in processing modules to execute in series, or in parallel, to speed processing by the plug-ins while accommodating computational dependencies. In one embodiment, the order determining mechanism can include a dependency counter associated with each plug-in processing module for determining an operational sequence position of the associated plug-in processing module, and means for conditioning the count value (e.g., decrementing or incrementing the count value) in response to operation of another of the plug-in processing modules on whose output the associated plug-in processing module depends, so that the associated plug-in processing module will commence operation in the proper order when the count value reaches a predetermined value.
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