Dial signal generator for generating dial pulse signal and dual tone multi-frequency signal

摘要

A dial signal generator supplied with dial data corresponding to a dial number, includes a dial data register (13) for storing the dial data, a decoder (81) for decoding the dial data supplied from the dial data register to thereby generate corresponding row and column numbers based on a dual tone multi-frequency (DTMF) system, a DTMF generator (14) for generating a DTMF signal from the row and column numbers generated by the decoder, and a dial pulse generator (16) for generating a dial pulse signal from the dial data supplied from the dial data register. IMAGE