JPS62201547U

JPS62201547U -

Info

Publication number: JPS62201547U
Application number: JP9010786U
Authority: JP
Priority date: 1986-06-12
Filing date: 1986-06-12
Publication date: 1987-12-22

Description

[Brief explanation of drawings]

第１図は本考案の電話機回路の原理ブロツク図
、第２図は一実施例の電話機回路のブロツク図、
第３図は従来の電話機回路のブロツク図である。図において、１―１，１―２はフツクスイツチ
、２は交換機、３，３―１，３―２はダイオード
ブリツヂ、４は着信回路、５はダイアル回路、６
は通話回路、７は送受話器、８は線路、９は電話
機端子、１０はＰＮＰトランジスタ、１１はＮＰ
Ｎトランジスタ、１２はマイクロスイツチ、１３
は動作制御手段、１４は電流供給手段、１５はト
ランジスタを示している。 FIG. 1 is a principle block diagram of a telephone circuit according to the present invention, FIG. 2 is a block diagram of a telephone circuit according to an embodiment,
FIG. 3 is a block diagram of a conventional telephone circuit. In the figure, 1-1 and 1-2 are switch switches, 2 is an exchange, 3, 3-1, and 3-2 are diode bridges, 4 is an incoming circuit, 5 is a dial circuit, and 6 is a dial circuit.
is a communication circuit, 7 is a handset, 8 is a line, 9 is a telephone terminal, 10 is a PNP transistor, 11 is an NP
N transistor, 12 is a micro switch, 13
Reference numeral 14 indicates an operation control means, 14 a current supply means, and 15 a transistor.

Claims

[Scope of utility model registration request]

In a telephone circuit that performs line switching from the incoming circuit 4 to the dialing circuit 5 and the speaking circuit 6 by off-hooking the handset 7, the incoming circuit, the dialing circuit, and the speaking circuit are connected in parallel, and the movement of the handset is controlled during a call. operation control means 13 for interlockingly cutting off the operation of the incoming call circuit;
A telephone circuit comprising: current supply means 14 for supplying current to the dial circuit and the telephone call circuit.