JPH033867U

JPH033867U -

Info

Publication number: JPH033867U
Application number: JP6396889U
Authority: JP
Priority date: 1989-06-02
Filing date: 1989-06-02
Publication date: 1991-01-16

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示すブロツク図、
第２図は従来のオフトーク通信方式の構成図であ
る。１００……交換機、１１０……局側装置、１２
０……電話機、１３０……宅内装置、１４０……
電話回線、１５０……オフトーク通信宅内機能付
き電話機、Ｓ１，Ｓ２，Ｓ３，Ｓ４……電話回線
切り換え用スイツチ、１２１……ダイヤル回路、
１２２……通話回路、１２３……送受話器回路、
１１１，１２６，１３３……着信検出回路、１２
７……着信呼出音回路、１３１……操作部、１３
４……増幅器、１３６……制御部、３００，３０
１……スピーカである。 FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a block diagram of a conventional off-talk communication system. 100...exchange, 110...office side equipment, 12
0...Telephone, 130...Home equipment, 140...
Telephone line, 150...Telephone with off-talk communication in-home function, S1, S2, S3, S4...Telephone line switching switch, 121...Dial circuit,
122...Telephone circuit, 123...Handset circuit,
111, 126, 133...Incoming call detection circuit, 12
7...Incoming ringing circuit, 131...Operation unit, 13
4...Amplifier, 136...Control unit, 300, 30
1...It is a speaker.

Claims

[Scope of Claim for Utility Model Registration] The station is equipped with a broadcasting center and the subscriber's premises is equipped with broadcast receiving equipment, and during the off-talk period when telephone communication is not taking place between the station and the subscriber's premises, For off-talk communication system telephones in the subscriber's premises that send broadcast signals from a broadcasting center on the side to the broadcast receiving equipment in the subscriber's premises via the telephone line, when the handset is connected to the telephone body, the broadcast signal is sent from the telephone line to the broadcast receiving equipment in the subscriber's premises. When the telephone function circuit is disconnected and the handset is removed, a first power switch is connected to the telephone line, a second power switch is linked to the first power switch, and the on/off state of the second power switch is input. A control unit that switches between off-talk communication and telephone functions is inserted into the electrical circuit that connects this control unit and the telephone line.It is normally in the on state, and the off-talk communication signal is emitted from the speaker, and the incoming call signal is transmitted to the telephone line. A switch that is turned off by a control unit when an incoming call arrives and is input to the incoming call detection circuit, and an incoming call detection circuit that is connected to a telephone line, detects an incoming call signal, and causes the speaker to emit the incoming call signal. A telephone with an off-talk communication in-home function.