Method and apparatus for detecting pulse density violations in T

Details Method and apparatus for detecting pulse density violations in T Method and apparatus for detecting pulse density violations in T

1991-07-16

1994-08-30

Beausoliel, Jr., Robert W.

Excavating

371 571, G06F 1100

Patent

active

053434820

ABSTRACT:
A method of detecting a pulse density violation in the T1 transmission of digital signals, which includes counting bits in sets of "k" successively in n serial stages generating an empty-out signal on detection of an "empty" set of "k" bits, and generating a pulse density violation on detecting a second set of "k" zero bits in the "n" stages of bits at a time when the empty-out signal is present.

REFERENCES:
patent: 4750179 (1988-01-01), Davidow et al.
patent: 4853931 (1989-08-01), Gorshe
patent: 4860324 (1989-08-01), Satomura
patent: 5119380 (1992-02-01), Ohwada et al.
patent: 5285459 (1994-02-01), Okuyama et al.
patent: 5295012 (1994-03-01), Wilson et al.

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