Line driver circuit for redundant timing signal generators

Details Line driver circuit for redundant timing signal generators Line driver circuit for redundant timing signal generators

1996-02-21

1998-08-11

Chin, Stephen

Pulse or digital communications

Cable systems and components

375377, 327309, 333101, 307 57, H04L 2502, H04B 0302

Patent

active

057938121

ABSTRACT:
In the present invention, a line driver circuit enables multiple timing signal generators to simultaneously deliver a timing signal to a load. The multiple or redundant timing signal generators each having a line driver circuit, provide an uninterrupted timing signal that is independent of failures of individual timing signal generators. The multiple timing signal generators share the task of providing the timing signal, i.e. power, to the load. In the event of a failure of one of the timing signal generators, the task of providing power to the load shifts to other of the multiple signal generators, maintaining an uninterrupted timing signal, undisturbed in amplitude, phase and pulse shape. The line driver of each timing signal generator has a drive capability to exceed that required for the timing signal. A voltage clamp regulates the amplitude of the timing signal when the timing signal generators are simultaneously functioning.

REFERENCES:
patent: 5235617 (1993-08-01), Mallard, Jr.
patent: 5513218 (1996-04-01), Moller

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