发明名称 MOBILE TELEPHONE LOCATION-BASED DIRECTORY SYSTEM
摘要 Systems and methods provide directory assistance to a mobile telephone user including finding services closest to a current location of the mobile telephone user. The present invention determines the latitude and longitude coordinates of the calling mobile telephone (120) using a standard latitude and longitude location system (100). A directory system (130) finds the services that match the user's request using a directory data base that stores services and latitude/longitude coordinates for the services. The directory system (130) searches for services that meet user selected service parameters and are closest to the mobile telephone (120).
申请公布号 WO0019743(A1) 申请公布日期 2000.04.06
申请号 WO1999US21998 申请日期 1999.09.23
申请人 CALL TECHNOLOGIES, INC. 发明人 HELLMAN, GLEN
分类号 G01S5/00;H04M3/493;H04W4/02;(IPC1-7):H04Q7/20 主分类号 G01S5/00
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