| CPC H04L 67/12 (2013.01) [G07C 3/02 (2013.01); B60K 31/00 (2013.01); B60K 31/18 (2013.01); B60Y 2200/11 (2013.01); B60Y 2200/12 (2013.01); B60Y 2200/126 (2013.01); B60Y 2200/13 (2013.01); B60Y 2200/30 (2013.01); B60Y 2200/40 (2013.01); B60Y 2200/50 (2013.01); B60Y 2200/90 (2013.01); G06Q 2240/00 (2013.01); G07C 5/008 (2013.01); G08G 1/00 (2013.01); Y04S 40/18 (2018.05)] | 44 Claims |

|
1. A method for use with a first portable device that is battery-powered and that is identified by a first identifier and with a second portable device that is identified by a second identifier, comprising:
receiving, by the second device over a Wireless Personal Area Network (WPAN) from the first device, the first identifier;
sending, by the second device over the Internet via a first Wireless Local Area Network (WLAN) to a first server, a first message that comprises the first and second identifiers, in response to the receiving of the first identifier;
receiving, by the first server from the second device over the Internet, the first message;
receiving, by the first server from a third portable device over the Internet, a first request that comprises the first identifier;
sending, by the first server to the third device over the Internet, a first notification, in response to the receiving of the first request and of the first message;
receiving, by the third device from the first server over the Internet, the first notification; and
displaying, by the third device, information that is based on, comprises, or uses, a location of the second device, in response to the receiving of the first notification.
|