Computerized numerical control system with human interface using low cost shared memory
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United States of America Patent
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Issued Date -
Mar 13, 2008
app pub date -
Sep 7, 2006
filing date -
Sep 7, 2006
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Abandoned
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Abstract
A computerized numerical control system includes a human interface computer (1), a PCI bus (4) which is adapted to couple to the human interface computer, and a numerical control device (3). The numerical control device includes an embedded processor (30) and a local bus (34) coupled to the embedded processor. A first and second low cost shared memories such as SDRAMs (10, 11) and a dual bus memory controller (2) are provided. The first and second shared memories are shared by the human interface computer and the embedded processor. The dual bus memory controller is configured for concurrent communication with the PCI bus and the local bus and is adapted to couple to the first and second shared memories.
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