Patent ID: 9066058
Filing Date: 2015-06-23
Classification: H04N

Abstract:
1. A display device to receive video information transmitted from a playback device and to display the video information, comprising: a first interface to communicate information with the playback device; a second interface to communicate information with the playback device; and a display circuit to display video information received by the first interface or the second interface, wherein the display device transmits a first connection confirmation signal to confirm connection, via the first interface to the playback device and receives a response signal in reply to the first connection confirmation signal, transmits a second connection confirmation signal to confirm connection, via the second interface to the playback device and receives a response signal in reply to the second connection confirmation signal, and makes a function to use the first interface and the second interface between the display device and the playback device available if the response signal in reply to the first connection confirmation signal and the response signal in reply to the second connection confirmation signal are received, and wherein if an interval of time between when the response signal is received in reply to the first connection confirmation signal and when the response signal is received in reply to the second connection confirmation signal is within a predetermined time range, it is judged that the function to use the first interface and the second interface is available.