Patent ID: 9232115
Filing Date: 2016-01-05
CPC Classification: H04N

Claim Text:
1. A method performed under control of a server, comprising: transmitting first video data to a first digital billboard and second video data to a second digital billboard in real time, wherein the first video data is to be displayed on the first digital billboard and the second video data is to be displayed on the second digital billboard, and the first digital billboard and the second digital billboard are geographically separated; receiving from an end device a control signal indicating that the end device is located in a predetermined area relative to both the first digital billboard and the second digital billboard; receiving from the end device aiming information indicating that the end device is currently aimed at the first digital billboard, wherein the aiming information includes an indication of a direction at which the end device is currently aiming; determining first audio data corresponding to the first video data currently being displayed on the first digital billboard and second audio data corresponding to the second video data currently being displayed on the second digital billboard; preloading the first audio data on the end device by transmitting the first audio data to the end device based on the control signal and the aiming information; and transmitting synchronization information to the end device, wherein the synchronization information allows for synchronization of the preloaded first audio data on the end device with the first video data being displayed on the first digital billboard.