Patent ID: 9268920
Filing Date: 2016-02-23
CPC Classification: G06F

Claim Text:
1. A method for controlling access to digital content, comprising: providing a user accessible wireless network; transmitting a first audio signal within a local area, the first audio signal including a first content access key; receiving a first key confirmation from a user device, wherein the user device received the audio signal and wherein the first key confirmation is based at least in part on the first content access key; receiving a radio fingerprint of the user device, the radio fingerprint including a signal strength of the wireless network detected by the user device; determining the user device is within the local area based at least in part on the radio fingerprint and receiving the first key confirmation; allowing the user device to access digital content via the wireless network based at least in part on receipt of the first key confirmation; changing the first content access key to a second content access key at a predetermined time interval; transmitting a second audio signal within the local area, the second audio signal including the second content access key; determining the user device is outside the local area based at least in part on failing to receive a second key confirmation from the user device; and discontinuing to allow the user device to access the digital content via the wireless network based at least in part on determining the user device is outside the local area.