JPH036362U

JPH036362U -

Info

Publication number: JPH036362U
Application number: JP6660989U
Authority: JP
Priority date: 1989-06-07
Filing date: 1989-06-07
Publication date: 1991-01-22

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は交換機、１１０は局側装置、１２０は
加入電話機、１３０は親宅内装置、１４０は電話
回線、１５０はオフトーク通信子宅内装置、１６
０はインタホーン機能を有するオフトーク通信親
宅内装置、１７０はインタホーン機能を有するオ
フトーク通信子宅内装置、１８０は増設線、Ｓ１
，Ｓ２およびＳ３は電話回線切り換え用スイツチ
、Ｓ４，Ｓ６は送話用スイツチ、Ｓ５，Ｓ７は呼
出信号送出用スイツチ、１３１は操作部、１３６
，１６６および１７６は制御部、１６１，１６７
は２線−４線変換回路、１６４，１７４は呼出信
号送出回路、１６５，１７５は呼出信号検出回路
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 is an exchange, 110 is an office side device, 120 is a subscriber telephone, 130 is a parent home device, 140 is a telephone line, 150 is an off-talk communication child home device, 16
0 is an off-talk communication parent home device having an interphone function, 170 is an off-talk communication child home device having an interphone function, 180 is an extension line, S1
, S2 and S3 are switches for switching telephone lines, S4 and S6 are switches for sending calls, S5 and S7 are switches for sending out ringing signals, 131 is an operation unit, 136
, 166 and 176 are control units, 161, 167
1 is a 2-wire to 4-wire conversion circuit, 164 and 174 are calling signal sending circuits, and 165 and 175 are calling signal detection circuits.

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, In a telephone configured with a parent-child system of subscriber premises equipment using an off-talk communication method that sends broadcast signals from a broadcasting center on the side to a broadcast receiving equipment inside the subscriber premises via a telephone line, each of the parent premises equipment and the slave premises equipment 1. An off-talk communication home device with an interphone function, characterized in that it is provided with an interphone function and performs interphone communication in addition to the above-mentioned off-talk communication.