Portable cordless telephone set for outputting various discrimination sounds with simple circuit construction.

摘要

A portable telephone set for outputting various types of discrimination sounds, in radio connection with a base unit (5), and having a telephone transmission and reception portion (11 to 18). The portable cordless telephone set includes a sound generation control circuit (21) having at least one microcomputer and receiving a discrimination sound request from the telephone transmission and reception portion; a clock generation circuit (22) generating an operation clock of the sound generation control circuit; a sound generator (32) generating sound having different sound pressures in response to different resonant frequencies, one of the resonant frequencies being adjacent to a frequency of the operation clock; a frequency divider circuit (23) providing at least one divided frequency signal; a switch circuit (24) selectively outputting a signal from the clock generation circuit (22) and the frequency divider circuit (23); and a timing control circuit (25) outputting an ON/OFF timing signal of the frequency signal received from the switch circuit to the sound generator. The sound generation control circuit energizes the switch circuit (24) and sends a command to the timing control circuit (25), in response to the received discrimination sound request.