Pulse stuffing demand generating device

Details Pulse stuffing demand generating device Pulse stuffing demand generating device

1976-03-30

1978-02-07

Stewart, David L.

H04J 306

Patent

active

040728269

ABSTRACT:
A pulse stuffing demand generating device of the kind comprising means for comparing the phases of the write clock signals HDI and the read clock signals HDL of a buffer store in which are written and read multiplexed digital information, the said store having a capacity of n binary digits, wherein the said means comprise first means for comparing the phases of the rising edges of signals HDL and HDI, the said first means supplying a pulse stuffing demand signal when the rising edge of signal HDL is located in the "one" portion of the HDI signal, and second means for supplying a signal authorizing the operation of the said first means, the said signal being supplied when one among n rising edges of the HDI signal is located in the "zero" portion of a signal resulting from the division by n of the HDL signal and the duration of which is equal to one binary digit time slot.

REFERENCES:
patent: 3420956 (1969-01-01), Heightley
patent: 3830981 (1974-08-01), Gruber

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