Pass-through and isolation switch

Details Pass-through and isolation switch Pass-through and isolation switch

1988-12-05

1990-11-27

Heckler, Thomas M.

Boots, shoes, and leggings

36492796, 3649339, 36494062, 3408255, 307571, H04Q 900

Patent

active

049741900

ABSTRACT:
A pass-through and isolation switch for connecting a terminal to a computer and for disconnecting the terminal from the computer without disrupting any sessions which may have been opened on the computer by the terminal. The switch includes a first gate and a second gate for switching in and out balanced termination loads across corresponding input terminals of the switch depending on the state of a control signal. And it includes a third gate and a fourth gate for preventing or allowing the passage of signals between the terminal and the computer, also depending upon the state of the control signal.

REFERENCES:
patent: 3371223 (1968-02-01), Gilbert
patent: 4498133 (1985-02-01), Bolton et al.
patent: 4513373 (1985-04-01), Sheets
patent: 4628307 (1986-12-01), Crouse
patent: 4648061 (1987-03-01), Foster
patent: 4677588 (1987-06-01), Benjamin et al.
patent: 4803485 (1989-02-01), Rypinski

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