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    • 7. 发明申请
    • SIGNAL MONITORING AND AUTOMATIC LINE CUT-OFF APPARATUS ON A TELEPHONE LINE
    • 电话线上的信号监控和自动线路切断设备
    • WO9965208A3
    • 2000-01-27
    • PCT/KR9900287
    • 1999-06-10
    • KIM CHONG TAIKIM GI HONGKIM JAMES JIMIN
    • KIM CHONG TAIKIM GI HONGKIM JAMES JIMIN
    • H04M20060101H04M11/06
    • H04M1/00H04M11/06
    • In a communication system in which both voice signal generating devices such as telephone and data signal generating devices such as fax and modems share and are coupled to the same telephone lines, a monitoring and indicating apparatus is provided which determines whether the line is being used and what type of device is being used thereby to prevent other terminal devices accidentally from disturbing the ongoing communication. The apparatus comprises a data signal detector for detecting a data signal along the telephone line, a voice signal detector connected to the telephone lines in parallel with the data signal detector for detecting whether the telephone line is in use, a display and indicator including a voice signal indicator connected to the voice signal detector which is activated along when the telephone line is being used and a data signal indicator connected to the data signal detector which is activated when the telephone line is being used for data communication, and a cut-off device which is located in between the telephone line and the additional communication device which opens to prevent the telephone from disturbing the data communication when both the voice signal detector and the data signal detector indicate that the line is used for data communication.
    • 在诸如电话和诸如传真和调制解调器之类的数据信号产生装置的语音信号产生装置共享并耦合到同一电话线的通信系统中,提供一种监视和指示装置,其确定该线路是否被使用, 正在使用什么类型的设备来防止其他终端设备意外地干扰正在进行的通信。 该装置包括用于检测沿着电话线的数据信号的数据信号检测器,与数据信号检测器并联连接到电话线的语音信号检测器,用于检测电话线是否正在使用,显示器和包括语音的指示器 连接到语音信号检测器的信号指示器,其在使用电话线时被激活,以及连接到数据信号检测器的数据信号指示器,当电话线被用于数据通信时被激活;以及截止装置 其位于电话线和附加通信设备之间,其打开以防止电话在语音信号检测器和数据信号检测器指示该线路用于数据通信时都会干扰数据通信。