JPS5927647U

JPS5927647U - portable receiver

Info

Publication number: JPS5927647U
Application number: JP1982121740U
Authority: JP
Inventors: 友孝橋本
Original assignee: 神田通信工業株式会社
Priority date: 1982-08-11
Filing date: 1982-08-11
Publication date: 1984-02-21

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は第１、第２トーン信号が異なる周波数である各
回路部の波形図、第２図は第１、第２トーン信号が同一
周波数であると共に両トーン信号の間隔が狭い場合の各
回路部の波形図、第３図は第１、第２トーン信号が同一
周波数であると共に両トーン信号の間隔が広い場合の各
回路部の波形図、第４図は本考案の一実施例を示す携帯
用受信機系統図、第５図は本考案の実施例の回路を用い
た、第１、第２トーン信号が同一周波数である場合の各
回路部波形図である。８・・・・・・第１トーンフイルタ、９・・・・・・第
２トーンフイルタ、１０・・・・・・第１ゲート、１４
・・・・・・第２ゲート、１１・・・・・・抵抗、１２
・・・・・・コンデンサ、１３・・・・・・ダイオード
、１５・・・・・・スイッチ。Figure 1 is a waveform diagram of each circuit section where the first and second tone signals have different frequencies, and Figure 2 is a waveform diagram of each circuit when the first and second tone signals have the same frequency and the interval between both tone signals is narrow. FIG. 3 is a waveform diagram of each circuit section when the first and second tone signals have the same frequency and the interval between both tone signals is wide. FIG. 4 shows an embodiment of the present invention. The portable receiver system diagram shown in FIG. 5 is a waveform diagram of each circuit section when the first and second tone signals have the same frequency using the circuit according to the embodiment of the present invention. 8...First tone filter, 9...Second tone filter, 10...First gate, 14
...Second gate, 11...Resistor, 12
... Capacitor, 13 ... Diode, 15 ... Switch.

Claims

[Scope of utility model registration request]

The portable receiver receives a signal for individual selective calling and has two tone filters to notify the carrier of the call by sound or light, and the output of the first tone filter is connected to the first gate. is controlled to supply power to the second gate, and
In a portable receiver that displays an incoming call by controlling a second gate using the tone filter output of the first gate, the output of the first gate is connected to the power input terminal of the second gate, and also connected to a capacitor and a resistor via a diode. , the other end of the resistor is connected to the input end of the first gate, and when receiving the individual call signal, the capacitor and the resistor add a part of the output of the first gate to the input end of the first gate. A portable receiver that controls the second gate to indicate that the output of the gate has been received within a certain time period by the output of the second tone filter.