Patent Document ID: 20140087769
Application ID: 14052499
Patent Flag: 0

Claim One:
1. A system for detecting a presence of a user's mobile device at a location comprising: a central server computing device configured to receive data from the user's mobile device, wherein the user's mobile device is configured to detect and identify devices by the use of a short range radio frequency digital communication protocol; non-transitory computer readable media comprising computer instructions which when executed by the computing device cause the system: to receive and process said data from the user's mobile device on the computing device, said data including device identities detected by the user's mobile device; to compute a probability of the user's mobile device presence at the location based at least in part on a set of said device identities received from the user's mobile device; whereby when the computed probability exceeds a threshold value, the system indicates the presence of the user's mobile device at the location.