Printer interface apparatus with plug-in unit authorized for rec

Details Printer interface apparatus with plug-in unit authorized for rec Printer interface apparatus with plug-in unit authorized for rec

1995-03-10

1996-10-08

Kim, Ken S.

395101, 395282, 395284, 395835, 395836, 395849, G06F 15177

Patent

active

055641105

ABSTRACT:
An input/output device comprises a first controller for controlling input/output of information, an interface provided between the first controller and an information exchange unit, and a receiver for receiving data inherent to the interface from the interface. A discriminator discriminates whether data received by the receiver is one registered in the first controller, and a second controller inhibits the exchange of information between the interface and the first controller when the discriminator discriminates that the data received by the receiver is not one registered in the first controller.

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patent: 4803623 (1989-02-01), Klashka et al.

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