公开(公告)号：US5212725A

公开(公告)日：1993-05-18

申请号：US735019

申请日：1991-07-25

申请人： Yasuhiko Yamamoto ,  Seiichi Tojo

发明人： Yasuhiko Yamamoto ,  Seiichi Tojo

IPC分类号： H01Q1/27 ,  H01Q3/24 ,  H04B1/38 ,  H04Q7/32 ,  H04Q7/38

CPC分类号： H04B1/3822 ,  H01Q3/24

摘要： A telephone apparatus for a vehicle comprising a main antenna and a sub-antenna. The sub-antenna is operated to receive incoming electric waves including an incoming call signal. When the sub-antenna receives the incoming call signal or when an outgoing call signal is outputted, the main antenna is extended and an transmitter-receiver of the telephone apparatus is turned on. When the conversation by the telephone apparatus is finished, the main antenna in an extended condition is contracted and received in the vehicle, and the transmitter-receiver is turned off.

摘要翻译： 一种用于车辆的电话设备，包括主天线和子天线。 子天线被操作以接收包括来电信号的进入电波。 当子天线接收到呼入信号时，或者当输出呼出信号时，主天线被扩展，电话设备的发射机 - 接收机被接通。 当通过电话装置的对话完成时，处于延长状态的主天线在车辆中收缩并且收发机被关闭。