Arrangement for regenerating start-stop signals and dial pulses

Details Arrangement for regenerating start-stop signals and dial pulses Arrangement for regenerating start-stop signals and dial pulses

1980-09-26

1983-02-15

Rubinson, G. Z.

Telegraphy

Systems

Printing

178 70R, 370 48, H04L 2552, H04L 2564, H04Q 136

Patent

active

043743056

ABSTRACT:
Described is the regeneration of dial pulses in the signalling system CCITT type B. The dial pulses are regenerated by a combined regeneration process comprising a reduced process with two sampling instants (10 ms, 30 ms) and an inverse process with four (anisochronous) sampling instants (10 ms, 30 ms, 52 ms, 72 ms). The reduced process is started by the stop-start transition at the beginning of the first of a series of dial pulses and the inverse process by the start-stop transition which occurs at the end of the series of dial pulses.

REFERENCES:
patent: 2822422 (1958-02-01), Terry et al.
patent: 3355549 (1967-11-01), Alexander et al.
patent: 3383465 (1968-05-01), Wilson
patent: 3396239 (1968-08-01), Yamauchi
patent: 3475556 (1969-10-01), Sasaki et al.
patent: 3626095 (1971-12-01), Nakagome et al.

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