Switch for sharing a peripheral device

Details Switch for sharing a peripheral device Switch for sharing a peripheral device

1992-10-21

1994-04-26

Chun, Debra A.

Boots, shoes, and leggings

395325, 364DIG1, 3642382, 3642383, 3642397, G06F 1312

Patent

active

053074629

ABSTRACT:
Disclosed is a switch that allows a peripheral device, such as a printer, to be shared by multiple computer systems. The switch connects to each of the computer systems, and also to the peripheral device being shared. The switch stores the current state of the peripheral device for each to the computer systems, so that when a particular system requests access to the peripheral device, the switch can restore the state of the peripheral device to the last state established by the system requesting usage. Therefore, the system requesting usage need not know that other systems may have used the peripheral device in the interim.

REFERENCES:
patent: 3675209 (1972-07-01), Trost
patent: 4454575 (1984-06-01), Bushaw
patent: 4562533 (1985-12-01), Hodel
patent: 4858108 (1989-08-01), Ogawa
patent: 5047957 (1991-09-01), Ikenoue

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