Multi-level controller system and method
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United States of America Patent
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May 21, 2013
Grant Date -
Jun 12, 2008
app pub date -
Dec 4, 2007
filing date -
Nov 18, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention is a state machine having a host controller that controls a level-1 controller, wherein the level-1 controller controls the level-2 controller. The level-2 controller controls system component controllers, which in turn control system components to execute a process segment. For example, the machine includes a host controller that selects a set of states to be executed, a level-1 controller that activates the set of states in a predetermined order, wherein each state includes commands, and a level-2 controller that controls system components according to the commands. A method of executing a process includes identifying a set of states to be executed, issuing state commands that need to be issued to execute the current state in the set of states, and activating a next state only after all expected status reports have been received for the current state.
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