Video display device, terminal device, and method thereof

摘要

A terminal device acquires a part of an audio-visual content regenerated by a video display apparatus. The terminal device acquires contents information of the audio-visual content based on the part of the audio-visual content. The terminal device acquires the available enhanced service based on the contents information and regenerates the available enhanced service.

主权项

1. An operating method for interworking with a first display device by a second display device, comprising:
capturing, by the second display device, an audio-visual content which is received and played by the first display device; extracting, by the second display device, a characteristic information from watermark information embedded to the captured audio-visual content; receiving, by the second display device, a response including an address of a first server, to a query including the characteristic information; obtaining, by the second display device, an address of an available enhanced service application and a start time of the available enhanced service application from the response; acquiring, by the second display device, the available enhanced service application, which is related to the audio-visual content from the first server; and executing, by the second display device, the available enhanced service application at the start time of the available enhanced service application.