Cellular telephone safety system

专利名称：Cellular telephone safety system发明人：Demetrius Thompson,Derek A. Butcher申请号：US11187442申请日：20050720

公开号：US20060040640A1公开日：20060223

专利附图：

摘要：A system for increasing the safety of using cellular telephones stores thegeographic coordinates of intersections and other traffic features of a local area in aserver. The server is interfaced to the cellular telephone network. A programmable GPSenabled telephone handset determines its location upon start-up and transmits that

location to through the cellular network to the server. The server responds by

transmitting the coordinates of intersections and traffic features surrounding the presentlocation of the telephone handset. As the handset changes location, it determines its newlocation and compares it to the coordinates provided by the server. If the telephonehandset is within a moving vehicle (as determined by the rate of motion of the handset),an audible alarm is issued when the handset comes within a set distance of one of theintersections or traffic features. In this manner a driver speaking on the telephone isalerted before driving into an intersection or other significant traffic feature.

申请人：Demetrius Thompson,Derek A. Butcher

地址：Los Angeles CA US,San Francisco CA US

国籍：US,US

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