Dial pulse digit detector

Details Dial pulse digit detector Dial pulse digit detector

1991-03-07

1993-06-08

Dwyer, James L.

Telephonic communications

Supervisory or control line signaling

Signal receiver

379286, H04M 300

Patent

active

052186369

ABSTRACT:
Method and apparatus for detecting and identifying dial pulse digits in a telephone signal. An embodiment of the inventive method includes the steps of: detecting a dial pulse "0" digit; analyzing the dial pulse "0" digit to determine a predetermined set of data to provide a template which is characteristic of the dial pulse "0" digit; detecting a further dial pulse digit; analyzing the further dial pulse digit to determine a predetermined set of data which is characteristic of the further dial pulse digit; and comparing the predetermined set of data of the further dial pulse digit with the template to identify the further dial pulse digit.

REFERENCES:
patent: 3935392 (1976-01-01), Smith et al.
patent: 4868873 (1989-09-01), Kamil
patent: 4944001 (1990-07-01), Kizuik et al.

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