公开(公告)号：US20040114736A1

公开(公告)日：2004-06-17

申请号：US10628405

申请日：2003-07-29

申请人： CANON KABUSHIKI KAISHA

发明人： Hitoshi Saito ,  Shunichi Fujise

IPC分类号： H04M011/00

CPC分类号： H04N1/32708 ,  H04M1/82 ,  H04N1/32704 ,  H04N1/32717 ,  H04N1/32719 ,  H04N1/32728 ,  H04N1/32745 ,  H04N1/32763

摘要： Disclosed is a communication apparatus connected to an analog public line, which can be actualized at low costs and can save its space. This communication apparatus includes a first communication means connected to a telephone line, for performing communications, and a connecting means for connecting a second communication means connected to the telephone line via the first communication means and thus performing communications. In this communication apparatus, the first communication means has a first switch means for connecting the telephone line to the first communication means or the second communication means, a first route means for connecting the second communication means to the telephone line via the first switch means, a second route means for connecting the second communication means directly to the telephone line, a second switch means for connecting the second communication means to the first route means or the second route means, a first hook detecting means connected to the first route means, and a second hook detecting means connected between the telephone line on the second route means and the second switch means.

摘要翻译： 公开了一种连接到模拟公共线的通信装置，其可以以低成本实现并且可以节省其空间。 该通信装置包括连接到电话线的用于执行通信的第一通信装置和用于连接经由第一通信装置连接到电话线的第二通信装置并由此进行通信的连接装置。 在该通信装置中，第一通信装置具有用于将电话线连接到第一通信装置或第二通信装置的第一开关装置，用于经由第一开关装置将第二通信装置连接到电话线的第一路由装置， 用于将第二通信装置直接连接到电话线的第二路由装置，用于将第二通信装置连接到第一路由装置或第二路由装置的第二开关装置，连接到第一路由装置的第一挂钩检测装置，以及 第二钩检测装置，连接在第二路径装置上的电话线和第二开关装置之间。