Selective call receiving device

Abstract

Abstract PURPOSE:To prevent interruption of speech head of voice and the delay from a call tone by transmitting a common call end signal to all receivers after the transmission of a selective call signal. CONSTITUTION:An ROM27 for number storage stores the selective call number and also a pattern of a call end signal in common to all receivers, comparator circuits 9-11 compare the received signal with the selective call number of the ROM27 and when they are coincident, the result is stored respectively in storage circuits 12-14, the 1st timer 26 is started and the storage circuits 12-14 are reset after a prescribed time. When a comparator circuit 22 detects the coincidence of the call end signal before the storage circuits 12-14 are reset, the calling to call storage circuits 23-25 is stored. Further, an output of the call storage circuits 23-25 activates a speaker amplifiers 19 via an amplifier control circuit 15, a call tone generated from the 2nd timer 16 and a ring tone circuit 17 is outputted from a speaker 20 to inform the presence of calling.

Inventors

• 👤 Osamu Waki
• 👤 脇　治

Bibliographic Details