Design of the Phone Intelligent Dialing Controller

摘要：

The SCM AT89S51 and DTMF chip MT8870 are the important part The SCM controls the dialing. If the numbers is the same as the saved numbers in device, the dialing is not controlled and the processing is cut off. The SCM also controls the longest time of the speaking. if the speaking excesses the preliminary value, the telephone is cut off.

关键词： DTMF MCU Phone Number Controlling

作者: Fu Guangchun Kong Xiaohong Zhang Wei Chen Yanfeng Du Liufeng

作者单位: School of Electrical and Mechanical, Henan Institute of Science and Technology, Xinxiang, China

会议类型: 国际会议

会议名称: 2010 International Conference of Informationa Science and Management Engineering(2010年信息科学与管理工程国际学术会议 ISME 2010)

会议地点: 西安

会议语种:英文

页码: 68-70

在线出版日期: 2010-08-07（万方平台首次上网日期，不代表论文的发表时间）