JPS593646U

JPS593646U - transceiver

Info

Publication number: JPS593646U
Application number: JP9731082U
Authority: JP
Inventors: 秀幸萩原
Original assignee: 日立電子株式会社
Priority date: 1982-06-30
Filing date: 1982-06-30
Publication date: 1984-01-11

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 drawings]

第１図は従来の無線機の一例を示すブロック図、第２図
は本考案によ木魚線機の一実施例を示すブロック図であ
る。１・・・・・・ブレストークスイッチ、２・・・・・・
送信φ受信切替回路、３・・・・・・送信部、４・・・
・・・トーンスケル　　。子回路、５・・・・・・トーン発振回路、６・・・・・
・トーン検出回路、７・・・・・・アンテナ、８・・・
・・・受信部、９・・・・・・スイッチ回路、１０・・
・・・・トーン除去フィルタ、１１・・・・・・音声増
幅器、１２・・・・・・スピーカ、２０・・・・・・制
御回路。FIG. 1 is a block diagram showing an example of a conventional radio device, and FIG. 2 is a block diagram showing an embodiment of a mokken wire device according to the present invention. 1... Breath talk switch, 2...
Transmission φ reception switching circuit, 3... Transmission section, 4...
...Tone Skel. Child circuit, 5... Tone oscillation circuit, 6...
・Tone detection circuit, 7... Antenna, 8...
...Receiving section, 9...Switch circuit, 10...
... Tone removal filter, 11 ... Audio amplifier, 12 ... Speaker, 20 ... Control circuit.

Claims

[Scope of utility model registration request]

A transmitting/receiving switching circuit that switches between a transmitting section and a receiving section according to the opening/closing operation of the Breath Talk switch, and a tone oscillation is controlled according to the opening/closing operation of the Breath Talk switch, and the oscillation output is input to the transmitting section. a tone squelch circuit that includes a tone oscillator circuit that detects a tone included in the received output of the receiving section, and a tone detection circuit that opens and closes a switch circuit that connects the received output of the receiving section based on the detected output; In a radio equipped with
A control circuit is provided that controls the operation of the transmission/reception switching circuit in response to the opening/closing operation of the breath talk switch, and this control circuit controls the operation of the transmission/reception switching circuit when the breath talk switch is operated to switch from transmission to reception. transmitting a carrier wave from the transmitter for a certain period of time by delaying the operation of the transmitter,
The wireless device is characterized in that the transmission/reception switching circuit is operated without delay when the breath talk switch is operated to switch from reception to transmission.