Boots – shoes – and leggings
Patent
1989-10-13
1994-05-31
Smith, Jerry
Boots, shoes, and leggings
G06F 1546
Patent
active
053175018
ABSTRACT:
A control system is proposed which is integrated in a single housing and is designed for a numerically controlled machine. The control system comprises a PC board which includes an input device, a processor, a memory, and a PC bus; a plurality of CNC boards, each including a processor, a memory, and a CNC bus; a common control-system bus connected to the CNC bus of each CNC board; and a PC matching circuit provided between the control-system bus and the PC bus. The matching circuit includes a read-write memory, an address multiplexer, a bidirectional data multiplexer, and a control circuit, which depending on the control signals on the control lines of the control-system bus and the PC bus, drives the address multiplexer, the bi-directional data multiplexer, and the read-write memory such that by the control-system bus and also by the PC bus, data can be written into and read out from the read-write memory under desired addresses.
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Muir Patrick D.
Smith Jerry
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