JPH0457933U

JPH0457933U -

Info

Publication number: JPH0457933U
Application number: JP1990100616U
Authority: JP
Priority date: 1990-09-25
Filing date: 1990-09-25
Publication date: 1992-05-19

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例よる無線送受信装
置を示すブロツク図、第２図は第１図のブロツク
各部の信号を示すタイミングチヤート図、第３図
はこの考案の他の実施例を示す無線送受信装置の
ブロツク図、第４図は従来の無線送受信装置を示
すブロツク図、第５図は第４図のブロツク各部の
信号を示すタイミングチヤート図である。２は送信機、４は受信機、５はタイマー、６は
スピーカ、８は電池、１１はスイツチ。なお、図
中、同一符号は同一、または相当部分を示す。 Fig. 1 is a block diagram showing a wireless transmitting/receiving device according to one embodiment of this invention, Fig. 2 is a timing chart showing signals of each part of the block in Fig. 1, and Fig. 3 shows another embodiment of this invention. FIG. 4 is a block diagram showing a conventional wireless transmitting/receiving device, and FIG. 5 is a timing chart showing signals of each part of the block in FIG. 4. 2 is a transmitter, 4 is a receiver, 5 is a timer, 6 is a speaker, 8 is a battery, and 11 is a switch. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

A transmitter that transmits a call signal, a timer that uses a battery that supplies power to the transmitter as a power source and constantly outputs a timing pulse, and a speaker when the timing pulse is output from the timer while receiving a call signal. What is claimed is: 1. A wireless transmitting/receiving device comprising: a receiver capable of making a sound; a wireless transmitting/receiving device comprising: a switch for selecting an interval of the timing pulses according to a call frequency;