08452307 is referenced by 21 patents and cites 551 patents.

The system comprising a communication device and an another device, (a) wherein when the communication device is identified to be located in a 1st geographic area, a pin-point location of the communication device is notified to the another device, (b) wherein when the communication device is identified to be located in a 2nd geographic area, a specific zone in which the communication device is located is notified to the another device, (c) wherein when the communication device is identified to be located in a 3rd geographic area, a false location is notified to the another device, (d) wherein when the communication device is identified to be located in a 4th geographic area, a current geographic location unknown notice is sent to the another device, and (e) wherein when the communication device is identified to be located in a 5th geographic area, a previous location which indicates the location of the communication device at a certain previous time is notified to the another device.

Title
Communication device
Application Number
12/245715
Publication Number
8452307 (B1)
Application Date
October 4, 2008
Publication Date
May 28, 2013
Inventor
Iwao Fujisaki
Tokyo
JP
IPC
H04W 24/00
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