JPS58101559U

JPS58101559U - hospital intercom

Info

Publication number: JPS58101559U
Application number: JP19305581U
Authority: JP
Inventors: 榊原　達夫; 敬二山本
Original assignee: アイホン株式会社
Priority date: 1981-12-28
Filing date: 1981-12-28
Publication date: 1983-07-11

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 the drawing]

第１図は従来の病院用インターホンのブロック図、第２
図は本考案の病院用インターホンのブロック図、第３図
は第２因の病院用インターホンを具体化した回路図であ
る。Ｐ・・・壁パネル、Ｓ・・・・・・ハンド形子機、Ｍ・
・曲親機、ａ、ｂ、ｃ、ｄ、　　ｅ・・・・・・呼出コ
ード、ｓｗｌ・・・・・・呼出用常閉スイッチ、ｓｗ２
・・・・・・復帰スイッチ、ｓｗ３・・・・・・電圧切
換スイッチ、Ｖｃｃ１〜Ｖｃｃ　４・・・・・・電源電
圧、ｓｐ・・・・・・受話器、ＥＭ・・・・・・送話器
、Ｅ・・・・・・送話回路、Ｒ・・・・・・受話回路、
Ｈ・・聞保持回路、Ａ・・・・・・送話増幅回路、Ｄ・
・・・・・検出回路、０・・・・・・増幅回路、Ｃ′・
・・・・・コネクタ、ＲＹ・・・・・・制御素子（リレ
ー）ＲＹＸＲＹａ、　ＲＹｂ・・・・・・制御素子ＲＹ
の接点、Ｔｒ１〜Ｔｒ４．Ｔｒ５・・・・・・スイッチ
ング素子（トランジスタ）、Ｔｒ５〜Ｔｒ７・・開制御
素子（トランジスタ）、Ｒ１−Ｒ３４・・・・・・抵抗
、ｃ１〜Ｃ１８・・・・・・コンデンサ、Ｄ１〜Ｄ９・
・・・・・ダイオード、ＺＤＩ、ＺＤ２・・・・・・ツ
ェナーダイオード、ＬＥＤ　ｌ　、　ＬＥＤ　２・・・
・・・発色ダイオード、Ｌ・・・・・・廊下灯、ｋ・・
・・・・検出器出力端子、Ｐ′・・・・・・増幅器出力
端子、ｔ・・・・・・通話時の接点、Ｗ・・・・・・待
受は時の接点。Figure 1 is a block diagram of a conventional hospital intercom, Figure 2 is a block diagram of a conventional hospital intercom.
The figure is a block diagram of the hospital intercom of the present invention, and FIG. 3 is a circuit diagram embodying the hospital intercom of the second cause. P...Wall panel, S...Hand type handset, M...
・Main unit, a, b, c, d, e... Calling code, swl... Normally closed switch for calling, sw2
...Return switch, sw3... Voltage selection switch, Vcc1 to Vcc 4... Power supply voltage, sp... Receiver, EM... Transmission Talker, E: transmitting circuit, R: receiving circuit,
H... Hearing holding circuit, A... Sending amplifier circuit, D...
...Detection circuit, 0...Amplification circuit, C'.
...Connector, RY...Control element (relay) RYXRYa, RYb...Control element RY
contacts, Tr1 to Tr4. Tr5... Switching element (transistor), Tr5-Tr7... Open control element (transistor), R1-R34... Resistor, c1-C18... Capacitor, D1-D9・
...Diode, ZDI, ZD2... Zener diode, LED l, LED 2...
...color-emitting diode, L...corridor light, k...
...Detector output terminal, P'...Amplifier output terminal, t...Contact when talking, W...Contact when standby.

Claims

[Scope of utility model registration request]

Connector C and call cord B attached to panel P,
Normally closed switch S for calling the handset S connected via C
W□, the call code and the call normally closed switch Sw! are in the standby state. A holding circuit H that is triggered by non-conduction of the holding circuit H, a detection circuit that detects the output of the holding circuit H in the standby state and drives the sound generating device, and an output from the base unit M in the talking state. A receiving circuit R of the handset S receives the received signal and emits a voice, and a transmitting circuit E of the handset S generates a transmitting signal through the transmitter in the talking state. 1. A hospital intercom comprising a transmitting amplifying circuit A for amplifying a transmitting signal outputted from the transmitting circuit E in the state.