基本信息:
- 专利标题： Dual-mode mobile terminal having a mode switching circuit
- 专利标题（中）：具有模式切换电路的双模移动终端
- 申请号：US11035791 申请日：2005-01-14
- 公开(公告)号：US20050180454A1 公开(公告)日：2005-08-18
- 发明人： Dong-Il Lee , Hyung-Il Lee , Min-Kyo Jung
- 申请人： Dong-Il Lee , Hyung-Il Lee , Min-Kyo Jung
- 优先权： KR2004-3176 20040116
- 主分类号： H04B1/40
- IPC分类号： H04B1/40 ; H04B1/16 ; H04W88/06 ; H04J3/16
摘要：
A dual-mode mobile terminal is disclosed in which a switching between the modes is performed. The dual-mode mobile terminal of the present invention is implemented with a single CPU, two or more dual-port randon access memories (DPRAMs) and two or more MODEMs along with interface units (IUs) that prevents the occurrence of interference between parts for respective modes when the CPU and the MODEMs communicate with each other via the DPRAMs in a mobile communication terminal that use a single central processing unit and a plurality of modem chips. The IUs perform control operations so that part of signals to be applied to each of the MODEMs is/are applied only when an activation signal for the MODEM is enabled. The IUs may be implemented with logic gates, and the part of signals include an interrupt signal allowing each MODEM to be released from a sleep state.
摘要（中）：
公开了一种双模式移动终端，其中执行模式之间的切换。 本发明的双模移动终端用单个CPU，两个或更多个双端口随机存取存储器（DPRAM）和两个或更多个MODEM以及接口单元（IU）来实现，该接口单元（IU）防止部件之间的干扰发生 当CPU和MODEM通过使用单个中央处理单元和多个调制解调器芯片的移动通信终端中的DPRAM相互通信时，各个模式。 IU执行控制操作，使得仅当启用用于调制解调器的激活信号时才施加要施加到每个调制解调器的信号的一部分。 IU可以用逻辑门来实现，并且该部分信号包括允许每个MODEM从休眠状态释放的中断信号。