Apparatus and method for fast changeover in duplex system

Details Apparatus and method for fast changeover in duplex system Apparatus and method for fast changeover in duplex system

1995-05-23

1997-03-18

Olms, Douglas W.

Multiplex communications

Fault recovery

Bypass an inoperative channel

370276, H04J 116

Patent

active

056129475

ABSTRACT:
An apparatus and method for fast changeover in a duplex system are disclosed. The apparatus and method enhance a processing speed, by verifying the state of a pair side by using an interrupt method, and simultaneously, by separating a control register and a state register so as to verify a fail position and content, and change over exactly according to a position of a unit to be changed over and to fail state information by including a group/unit address and the fail state information in a control register and a state register.

REFERENCES:
patent: 5123008 (1992-06-01), Beesley
patent: 5253309 (1993-10-01), Nazarathy et al.

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