US Patent 8184983 Wireless directional identification and subsequent communication between wearable electronic devices

Disclosed are methods, devices, and systems for exchanging information between a first wearable electronic device and one of a second wearable electronic device and an account at a remote computing device associated with a user of the second wearable electronic device. The first wearable electronic device intermittently emits directed electromagnetic radiation comprising a beacon signal, and receives, via a receiver coupled to the first wearable electronic device, a signal from the second wearable electronic device identifying one of the second wearable electronic device and the account at the remote computing device. An input may then be detected at the first wearable electronic device, and in response to receiving the signal and detecting the input, the first wearable device may transmit additional data to one of the second wearable electronic device and the remote computing device associated with the second user.