Boots – shoes – and leggings
Patent
1977-08-30
1980-01-08
Chapnick, Melvin B.
Boots, shoes, and leggings
364104, G06F 304, G06F 906, G03G 1500
Patent
active
041830890
ABSTRACT:
A data communications system for an electrophotographic type reproduction machine or copier. The system includes a programmable master controller with memory and a command byte generator. A plurality of secondary controllers provide input data bytes reflecting the machine status to the master controller and receive command bytes from the master controller for operating the machine components. The secondary controllers are each connected to the master controller such that corresponding data bits of the secondary controller are ORed together to provide simultaneous transmission of input data bytes from the secondary controllers to the master controller while assuring that corresponding bits of the simultaneously transmitted bytes have mutually exclusive data therein.
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patent: 3940210 (1976-02-01), Donohue
patent: 4016549 (1977-04-01), Hutner
patent: 4054380 (1977-10-01), Donohue et al.
patent: 4058850 (1977-11-01), Sheikh
patent: 4062061 (1977-12-01), Batchelor et al.
Daughton John W.
Gillett Kenneth
Nelson Frank M.
Chapnick Melvin B.
Xerox Corporation
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