Patent ID: 6584328
Filing Date: 2003-06-24
Classification: G01C,H04L,H04M,Y10S

Abstract:
A wireless communication system comprising:a wireless handset comprising: a key circuit for inputting telephone numbers or key data; a radio frequency (RF) communication circuit for receiving and transmitting wireless signals; a liquid crystal display (LCD) panel for displaying text or images; and a processor for controlling the operations of the wireless handset; a base station comprising an antenna for establishing wireless communications between the base station and the wireless handset; and a communication server connected to the base station comprising: a memory comprising: a map database for storing map graphic data; a keyword data file comprising a plurality of keywords and map coordinates corresponding to the keywords; and a searching program for searching the keyword data file for a target keyword to find the target map coordinate that corresponds to the target keyword and then searching the map database using the target map coordinate to find the target map graphic data that corresponds to the target map coordinate; and a processor for executing the searching program; wherein when a user uses the key circuit to input a target keyword, the processor of the wireless handset will use the RF communication circuit to transmit the target keyword to the communication server through the base station, the searching program of the communication server will find the target map graphic data that corresponds to the target keyword and transmit the target map graphic data to the wireless handset, and the processor of the wireless handset will display the target map graphic data on the liquid crystal display panel.